21 April 2009 Grampian Guidelines for the Management of Diabetes Mellitus 2009 21 April 2009 Table of Contents Section A: Classification, Diagnosis Initial Management, Prevention and Screening ...................................... 5 Section B: Supporting Self-Management ................................ 36 Section C: Glycaemic Control .................................................. 79 Section D: Complications ....................................................... 127 21 April 2009 Introduction These guidelines are designed to assist everyone involved in the care of people with diabetes in planning and implementing their own local care plans, and in dealing with specific common problems. They have been written by local healthcare professionals in primary and secondary care with the aim of supporting local practice within Grampian. They will facilitate the development of a common standard of care for all people with diabetes in the region, and provide guidance on access to the various support services that are available. The purpose of diabetes care is to empower patients to make informed decisions about their lifestyle, self-management and health choices. Holistic patient care requires that patients are involved in setting their own realistic targets. A selective update of the electronic guideline will follow the publication of the SIGN diabetes guideline (expected to be available in 2010). Useful Websites: Throughout the Guideline chapters there will be important links to additional information. A comprehensive list of these websites is available at the end of the document. Some important websites are included below: Grampian Diabetes Website http://www.diabetes.grampian.org The live version of these Guidelines is available through the Diabetes MCN website at http://www.diabetes.nhsgrampian and this is a useful website for diabetes in Grampian in general. Scotland’s Health on the Web (SHOW) http://www.show.scot.nhs.uk/ Scottish Intercollegiate Guidelines Network (SIGN) http://www.sign.ac.uk/ NICE Guidelines – Home Page http://www.nice.org.uk My Diabetes My Way http://www.mydiabetesmyway.scot.nhs.uk Diabetes in Scotland http://www.diabetesinscotland.org.uk/ 3 21 April 2009 SCI-DC – home page https://ctc6.tayside.scot.nhs.uk/scidc/ 4 21 April 2009 Section A: Classification, Diagnosis Initial Management, Prevention and Screening A1.0 Types of Diabetes .............................................................................. 6 A2.0 Confirming the Diagnosis and Initial Management ............................... 8 A2.1 Confirming the diagnosis ............................................................. 8 A2.1.1 Interpretation of Plasma Glucose Levels (mmol/l) .................... 8 A2.1.2 Interpretation of 75g Oral Glucose Tolerance Test (WHO 2000) ............................................................................... 8 A2.2 Determine the risk of ketoacidosis and likely need for immediate insulin therapy ............................................................................ 9 A2.2.1 Indications for immediate insulin therapy ........................ 9 A2.2.2 Patients not requiring immediate insulin ........................ 10 A2.3 Check list for recently diagnosed diabetes ................................ 10 A2.3.1 Checklist ....................................................................... 10 A2.4 Impaired glucose tolerance & impaired fasting glucose ............ 12 A2.5 Glycaemic control - management of the newly diagnosed patient: ................................................................................................. 13 A2.6 Performing a 75g Oral Glucose Tolerance Test ........................ 15 A3.0 Prevention of Diabetes .................................................................... 16 A3.1 Background ............................................................................... 17 A3.1.1 Achieving & Maintaining a Healthy Weight & Lifestyle .. 19 A3.1.2 Key Facts – What is a healthy weight? ......................... 21 A3.1.3 Key Facts – Eating a Healthy Diet................................. 21 A3.1.4 Key Facts - Physical Activity ......................................... 23 A3.1.5 Key Facts: Healthy Lifestyle & Alcohol .......................... 26 A3.1.6 Key Facts: Medicines & Surgery as part of the management of obesity ................................................. 28 A3.1.7 Sources of advice about how to achieve and maintain a healthy weight & lifestyle ............................................... 30 A4.0 Screening for diabetes .................................................................... 32 A4.1 UK National Screening Committee (UK NSC) ........................... 32 A4.1.1 Summary of evidence regarding screening for diabetes32 5 21 April 2009 A1.0 Types of Diabetes Type 1 Diabetes: These patients usually present as children or young adults, but it is important to be aware that they may present at any age. Their hallmark is insulin deficiency due to autoimmune pancreatic β cell destruction, resulting in weight loss and the presence of ketones in the urine. Such patients are prone to ketoacidosis, and once diagnosed should be referred to the Diabetes Service by telephone for treatment with insulin as a matter of urgency, although emergency hospital admission is often unnecessary. Type 2 Diabetes: Although most present in middle and old age, an increasing number present at younger ages. Many are obese. Peripheral insulin resistance combined with relative insulin deficiency accounts for the pathogenesis. Ketonuria is absent in the non-fasting state. Such patients are not normally prone to ketoacidosis. Those at Increased Risk of Diabetes: Impaired Fasting Glucose (IFG) and Impaired Glucose Tolerance (IGT). IFG (fasting venous glucose >6.1<7.0mmol/l) and IGT (fasting venous glucose <7.0mmol/l and 2 hours after OGTT venous glucose >7.8 <11.1 mmol/l) are associated with an increased risk of macrovascular disease and require aggressive management of cardiovascular risk factors, dietary and lifestyle advice. A fasting or random glucose level should be measured on an annual basis to screen for development of diabetes. Syndromes Associated With Diabetes Diabetes Mellitus: can be secondary to other conditions which cause pancreatic destruction (haemochromatosis, cystic fibrosis, pancreatitis) or associated with other syndromes which are characterised by insulin resistance (acromegaly, polycystic ovarian syndrome, Cushing’s syndrome) and drug therapy, particularly glucocorticoids. The table below illustrates some of the conditions. It is important to remember that many of these conditions are rare but a high index of suspicion may be needed to make such a diagnosis. Condition Cushing’s syndrome When to suspect Centripetal obesity, hypertension, hirsutism Acromegaly Coarse features, prognathism, change in ring / shoe size, hypertension, sweating Haemochromatosis Pigmentation (“bronzed diabetes”), abnormal LFTs, How to screen First voided morning urine sample for free cortisol /creatinine ratio Consider referral to Endocrine clinic Serum ferritin 6 21 April 2009 Polycystic Ovarian Syndrome Chronic pancreatic destruction hepatosplenomegaly Irregular menstruation. Features of the metabolic syndrome. History of alcohol excess, recurrent abdominal pain, cystic fibrosis Clinical history and abdominal ultrasound. Abdominal ultrasound, amylase, consider referral to GI specialist Recognised Genetic Syndromes: including MODY (maturity onset diabetes of youth), which is characterised by early onset diabetes and often no requirement for insulin (non-ketotic). Patients are often of normal weight. The condition is inherited in an autosomal dominant fashion and there is almost always a family history. Family history is therefore important in people with diabetes. Website: http://www.diabetesgenes.org Gestational Diabetes (see Section B 5.4.1) is defined as glucose intolerance of variable severity with first onset or recognition during pregnancy. The criteria for diagnosis of gestational diabetes are a fasting venous plasma glucose of >5.5mmol/l or two hours after OGTT >9mmol/l. If blood glucose levels are in the range for gestational diabetes specialist management is needed. In most women the abnormality is reversible post partum, but up to 50% develop Type 2 diabetes later in life. A small proportion has coincidental Type 1 diabetes. 7 21 April 2009 A2.0 Confirming the Diagnosis and Initial Management A2.1 Confirming the diagnosis In the symptomatic individual with dehydration or heavy ketonuria, a presumptive diagnosis of diabetes may be made on the basis of urinalysis and/or blood strip testing and urgent referral is likely to be appropriate. Otherwise it is essential that a diagnosis of diabetes is confirmed before the patient is advised that he/she has diabetes and before treatment with diet or any other agent is commenced. Symptoms of thirst and polyuria or the finding of glycosuria should prompt blood glucose measurement using a laboratory method. The diagnosis of diabetes should not be made on the basis of portable blood glucose meter results alone. The diagnosis can be made on the basis of symptoms (thirst and polyuria) and one diagnostic blood glucose measurement. The values of blood glucose indicative of diabetes are as follows; Random venous plasma glucose ≥ 11.1 mmol/l; or Fasting plasma glucose ≥ 7 mmol/l; or Venous plasma glucose ≥ 11.1 mmol/l at 2 hours after a 75g oral glucose load (the oral glucose tolerance test In the absence of symptoms the diagnosis is based on two diagnostic blood glucose measurements on two separate days. On rare occasions therefore a second oral glucose tolerance test may be needed before a diagnosis of diabetes can be confirmed. In the UK the 2000 WHO criteria were adopted from June 2000. A2.1.1 Interpretation of Plasma Glucose Levels (mmol/l) Fasting Venous ≥7.0 Capillary ≥ 7.0 Random Venous Capillary ≥ 11.1 ≥ 12.2 Diabetic range 5.5 to 11.1 6.5 to 12.2 ≤ 5.5 ≤ 6.5 Check fasting glucose Impaired Fasting Glucose (IFG) - 75g OGTT required Borderline - 75g OGTT required Diabetes unlikely ≥6.1 to 7.0 ≥6.1 to 7.0 5.5 to 6.0 5.5 to 6.0 ≤ 5.5 ≤ 5.5 A2.1.2 Interpretation of 75g Oral Glucose Tolerance Test (WHO 2000) 8 21 April 2009 Venous Plasma Glucose (mmol/l) Fasting 2 Hour Diabetes Mellitus ≥ 7.0 and/or ≥ 11.1 Impaired glucose tolerance <7.0 and/or ≥ 7.8, < 11.1 Capillary Plasma Glucose (mmol/l) Fasting 2 Hour Diabetes Mellitus ≥ 7.0 and/or ≥ 12.2 Impaired glucose tolerance <7.0 and/or ≥ 8.9, < 12.2 Capillary Whole Blood Fasting 2 Hour Diabetes Mellitus ≥6.0 and/or ≥ 11.1 Impaired glucose tolerance <6.0 and/or ≥ 7.8, < 11.1 A2.2 Determine the risk of ketoacidosis and likely need for immediate insulin therapy The most important decision once the diagnosis has been made is to decide whether the patient is at risk of ketoacidosis and likely to require immediate insulin therapy. A2.2.1 Indications for immediate insulin therapy Persistent non-fasting ketonuria/ketonaemia Marked weight loss in the normal or underweight patient Vomiting and dehydration (will require immediate hospital admission for intravenous therapy). 9 21 April 2009 The initial blood glucose level or presence of primary symptoms of thirst and polyuria are not good guides as to the need for insulin. Hospital admission may be avoided in patients who clearly require insulin, but are not dehydrated or in ketoacidosis, depending on the logistics of arranging to start insulin at home on an urgent basis. Such patients should be discussed by telephone with a member of the diabetes specialist team with a view to starting insulin within 24 hours. These patients should receive immediate care from the hospital diabetes team and may be admitted to hospital depending on the practicalities of starting insulin at home. Patients with signs of etoacidosis or dehydration should be admitted to hospital under the emergency admissions system. Children under the age of fourteen should be discussed urgently on the telephone with a paediatrician, and will normally be admitted to hospital. A2.2.2 Patients not requiring immediate insulin The majority of newly diagnosed patients have Type 2 diabetes, and the management approach can be more relaxed in timescale. The initial blood glucose level or presence of primary symptoms of thirst and polyuria are not a good guide as to the long term need for hypoglycaemic drug therapy. Patients do not normally require oral hypoglycaemic agents until they have completed at least two or three months on diet alone. Group education facilities are available at a variety of locations throughout the region for the initial education of Type 2 patients. All such patients should initially receive dietary advice aiming to optimise body weight (see diet section). General advice and the provision of the Diabetes UK diet leaflet is acceptable for initial management, but all patients should be referred to a dietitian at an early stage for more detailed and personalised advice. 2 Obese patients (BMI > 30kg/m ) inadequately controlled after a trial of diet but showing evidence of weight loss may be left on diet alone as glycaemic control is likely to continue to improve. Overweight and obese patients (BMI >25) not achieving weight loss may be most appropriately treated with metformin (section 3) in a low starting dose to minimise gastrointestinal side 2 effects. Patients not overweight (BMI ≤ 25kg/m ) but inadequately controlled may be commenced on a sulphonylurea (section 3.1). Employment and social issues may also influence the choice of treatment. A2.3 Check list for recently diagnosed diabetes Once the immediate issue of glycaemic control has been addressed it is important to consider further educational topics and to ensure an adequate physical examination for detection of established complications, which are often present at diagnosis in Type 2 patients. The following checklist is suggested for completion over the first few clinical contacts. A2.3.1 Checklist 10 21 April 2009 Comment/Recording Date/Signed INITIAL Decide on initial blood glucose management and need for immediate insulin or otherwise Provide initial dietary advice and arrange for referral to a dietitian CLINICAL RECORDINGS Record weight and BMI Blood pressure Urinalysis for protein and ketones and glucose Consider causes of secondary diabetes, see Section A1 - Types of Diabetes PODIATRY Examine feet for signs of neuropathy, peripheral vascular disease or active lesions. Risk calculation available on SCI-DC. Provide foot care information Decide on need for referral to a podiatrist RETINAL SCREENING Perform, arrange and/or discuss need for adequate retinal examination Record visual acuity (pinhole corrected if worse than 6/9) Register with DRS programme. LAB TESTS Arrange biochemical assessment; serum creatinine, LFTs, lipid profile, thyroid function, HbA1c Early morning urine for albumin/creatinine ratio (microalbumin screen) RISK Record smoking status and advise as appropriate Assess cardiovascular risk status (smoking, BP, family history, lipids, proteinuria/microalbuminuria, established macrovascular disease) Consider ECG to assess evidence of previous MI or left ventricular hypertrophy FURTHER EDUCATION/MANAGEMENT 11 21 April 2009 Decide on appropriate patient self monitoring Determine individualised blood glucose treatment targets Discuss hypoglycaemia and its management in all insulin and sulphonylurea treated patients Provide support literature and web sites Cover selected topics from the education checklist with the patient and relevant individuals Discuss driving/DVLA/insurance Consider referral to a Diabetes Specialist Nurse or hospital diabetes clinic Ensure patient is registered with practice and regional diabetes register A2.4 Impaired glucose tolerance & impaired fasting glucose These patients, like those with established diabetes, have an increased risk of macrovascular disease and require assessment and aggressive management of cardiovascular risk factors, dietary and lifestyle advice – See Section D2.0 and Section B3.5 Smoking and Diabetes. Patients with impaired fasting glucose (IFG) (≥ 6.1mmol/l, <7.0mmol/l) should have a 75g OGTT as some will fulfil the criteria for diabetes mellitus on the two hour value. Patients with IGT & IFG should be entered into the practice diabetes register. Five per cent per year may go on to develop Type 2 diabetes and will then need appropriate diabetes care. A fasting or random blood glucose level should therefore be measured on an annual basis, or earlier in the event of symptoms in people with IGT or IFG and the results interpreted according to Section A2.1.1. Although not diagnostic an HbA1c level can give further information. 12 21 April 2009 A2.5 Glycaemic control - management of the newly diagnosed patient: Algorithm for management of the newly diagnosed patient Newly diagnosed diabetics Clinically unwell – vomiting, dehydrated or suspected acidosis Yes No Heavy Ketonuria Yes Marked unintentional weight loss No No current indication for insulin therapy Lifestyle advice e.g. start on diet Self-monitoring if appropriate 4 – 6 weeks later – Adequate control Yes No Continue diet for 4 weeks Yes Improving Control No Yes Can dietary compliance be improved? No Overweight BMI >25 Yes No Diet & Metformin Diet & Sulphonylurea Diet alone Seek experienced advice re. insulin therapy within 24 hours Emergency admission 13 21 April 2009 14 21 April 2009 A2.6 Performing a 75g Oral Glucose Tolerance Test Indications for this test are discussed in Section 2. It can easily be performed in primary care but a standardised protocol must be followed and laboratory glucose analysis must be used. This test should not be performed during intercurrent illness. On rare occasions two oral glucose tolerance tests may need to be performed before a diagnosis of diabetes can be confirmed. The patient should maintain an adequate carbohydrate intake (> 150g) for at least three days prior to the test. Fast overnight for a minimum of 10 hours (water only permitted). 75 g oral glucose dissolved in 250 to 300 ml water to be consumed in no more than 5 minutes followed by a further 100 ml water. Acceptable alternatives are; Lucozade 394 ml (73kcal/100 ml formulation) Maltodextrins in appropriate volume to provide 75g carbohydrate (e.g. Calsip 150 ml) Blood for glucose estimation to be taken before (zero minutes) and 120 minutes after consumption of the drink. Urine may also be tested for glucose to estimate the renal threshold, but this does not contribute to the diagnosis of diabetes, which is based on the fasting and two-hour blood glucose results. The method of blood sampling is important and must be specified: venous or capillary, plasma or whole blood. Venous plasma is most commonly used. (Aberdeen Diabetes Clinic uses whole blood capillary glucose). The patient should remain sedentary and not smoke, eat or drink for the duration of the test. 15 21 April 2009 A3.0 Prevention of Diabetes A Healthy Weight - Summary 16 21 April 2009 A3.1 Background In Grampian, there are currently more than 21,000 individuals with diabetes. 800 new people with diabetes were notified to the register in the last six months alone. Type 2 diabetes accounts for 85% of cases. While the cause of Type 1 diabetes is unknown, Type 2 diabetes mellitus is closely associated with being overweight or obese. 80% of people with diabetes in Scotland are obese.1 Prevention Helping people to maintaining or achieve a healthy weight is the key opportunity for prevention of diabetes. Approximately two out of every three people in Scotland are overweight or obese. One in five is obese. One in three children (under the age of 15) is overweight or obese. A ‘typical’ NHS general practice with a list size of 6000 will have approximately 1200 adults who are obese (BMI ≥ 30 kg/m2), 50 adults who have severe obesity (BMI ≥ 40 kg/m2).2 Obesity is not just a consequence of an unhealthy lifestyle but is a disease and a risk factor for other diseases. In adults, obesity is associated with an increased risk of Type 2 diabetes, coronary heart disease, hypertension, many cancers and osteoarthritis (see table 1). Table 1: Risk of other diseases in obese adults2 Disease Type 2 diabetes Hypertension Heart attack Colon cancer Angina Gall bladder disease Ovarian cancer Osteoarthritis Stroke Relative risk Women Men 12.7 5.2 4.2 2.6 3.2 1.5 2.7 3 1.8 1.8 1.8 1.8 1.7 1.4 1.9 1.3 1.3 If you are male and obese you are 5 times more likely to develop diabetes than if you were at a healthy weight; if you are female and obese, your risk is increased 13 times. If you lose weight you can not only improve the control and management of your diabetes, reducing the need for insulin injections but, 2/3rds of Type 2 diabetes mellitus can be prevented by lifestyle and diet modification.3 You will also reduce your risk of heart disease. 1 National Overview Follow up Report: Diabetes-March 2008, Diabetes UK & NHSQIS NICE Guideline 43: Obesity NICE 2007 3 The Handbook for Vascular Risk Assessment, Risk Reduction and Risk Management, UK NSC 2007 2 17 21 April 2009 Screening for diabetes Type 1 diabetes has a sudden onset and people present early for care but because Type 2 diabetes has a gradual onset and presents with vague symptoms, it can go unnoticed for many years. At the moment, an estimated 90001 people in Grampian may have Type 2 diabetes but will not know yet, and they will not be known to healthcare teams. Diabetes can be detected by a blood test and may be identified as an incidental finding or as part of general health reviews by GPs, practice nurses or, increasingly, by pharmacists. Structure This section of the guidelines aims to provide a summary of advice regarding: the prevention of Type 2 diabetes through the achievement & maintenance of a healthy weight & lifestyle Screening for Type 2 diabetes 18 21 April 2009 A3.1.1 Achieving & Maintaining a Healthy Weight & Lifestyle NHSGrampian Healthy Weight Strategy The NHSGrampian Healthy Weight Strategy is currently under development to produce “A co-ordinated approach to the provision of services and interventions for obesity prevention, treatment and weight maintenance that will improve the long-term health of people in Grampian.” We will update this section as the strategy progresses. The NHSGrampian Healthy Weight Strategy includes the development of a care pathway for people who are overweight or obese. The pathway will recognise that referral may come from a range of practitioners. Consideration of the individual’s motivation will be important in determining their ability to gain benefit from different types of weight loss intervention. Factors affecting a person’s ability to maintain a healthy weight or lose weight Preventing and managing overweight and obesity are complex problems, with no easy answers. Many factors could be affecting a person’s ability to stay at a healthy weight or succeed in losing weight.4 Motivation: people choose whether or not to change their lifestyle or agree to treatment. An individual’s readiness to alter their lifestyle can be enhanced by engaging in a collaborative conversation about behaviour change. The type of questions that could be asked to encourage client engagement include: In what ways would it be good for you to…..? If you decide to… how would you do it? What would be the good things about…..? Why would you want to……? If you don’t make any change what do you think will happen? Where would you like to be in…..years? Barriers to lifestyle change: should be explored. lack of knowledge about buying and cooking food, and how diet and exercise affect health the cost and availability of healthy foods and opportunities for exercise safety concerns, for example about cycling lack of time personal tastes the views of family and community members low levels of fitness, or disabilities low self-esteem and lack of assertiveness. Tailored advice: Advice needs to be tailored for different groups. This is particularly important for people from black and minority ethnic groups, 4 NICE Guideline 43: Obesity NICE 2007 19 21 April 2009 vulnerable groups (such as those on low incomes) and people at life stages with increased risk for weight gain (such as during and after pregnancy, at the menopause or when stopping smoking). Children: treating children for overweight or obesity may stigmatise them and put them at risk of bullying, which in turn can aggravate problem eating. Confidentiality and building self-esteem are particularly important if help is offered at school. It is important to consider these factors when supporting people to maintain or achieve a healthy weight. A range of services exist within Grampian where people can seek opportunities to lose weight, improve their understanding of nutrition and participate in physical activity. Patients can be referred, or self refer, to Healthpoint to obtain health improvement advice, support and sign posting to local services and facilities. In the next section, there are a series of key facts and links to resources. 20 21 April 2009 A3.1.2 Key Facts – What is a healthy weight? Maintaining a healthy weight is important for many health conditions including diabetes mellitus. A healthy weight is often defined by BMI (body mass index) – this is a measure of weight taking into account a person’s height. BMI Underweight: Healthy weight: Overweight: Obesity, class I Obesity, class II Obesity, class III <18.5 18.5 -24.9 25.0-29.9 30.0-34.9 35.0-39.9 ≥40 A BMI of 18.5 to 24.9 means that adults are a healthy weight for their height. However, this is general advice for adults only. It does not apply to children, pregnant women or women who are breastfeeding. Also, BMI may not be accurate if the person: does a lot of weight-training and is very muscular, has a long-term health condition. A3.1.3 Key Facts – Eating a Healthy Diet Base your meals on starchy foods that include breads, rice, potatoes and pasta Eat lots of fruit and vegetables Eat more fish Cut down on saturated fat and sugar Try to eat less salt – no more than 6g a day Get active and try to be a healthy weight Drink plenty of water Don’t skip breakfast 21 21 April 2009 As an example, the following Healthy Eating leaflets are available at the Healthpoints (in Aberdeen and Elgin) and through Health Information Resource Service at Summerfield House, Aberdeen (Tel: 01224 558504) Your Guide To Healthy Eating The Balance of Good Health The following websites provide useful sources of information about diet and healthy eating: http://www.takelifeon.co.uk http://www.eatwell.gov.uk provides lots of guidance about nutrition and healthy eating as well as diet related health issues (obesity, diabetes). 22 21 April 2009 A3.1.4 Key Facts - Physical Activity Being physically active is important for health and contributes to maintaining a healthy weight. What Are The Benefits of Physical Activity? Helps to maintain an energy balance by increasing energy expenditure (burning calories) and can help use up stored fat Builds muscle which will speed up metabolic rate. This increases the amount of calories burnt even when the person is not exercising Reducing the amount of stored fat will help reduce the risk of developing high blood pressure, diabetes and having a heart attack or stroke Reduces the risk of certain cancers, osteoporosis, falling, levels of stress and improves the person’s overall feeling of well-being and quality of life If the person has diabetes, physical activity will help to maintain good blood glucose control How Much Physical Activity Should You Take? The minimum recommended levels of physical activity to maintain good health: Adults should build up to at least 30 minutes of moderate intensity activity on 5 or more days of the week. Children to build up at least one hour of moderate intensity activity on 5 or more days of the week. Moderate intensity means breathing a bit deeper, feeling warmer, perhaps sweating a bit, but still able to carry out a conversation. Making It Happen - it is often perceived to be difficult fit activity into the day. Here are some suggestions about how to do it (NICE guideline 43). 23 21 April 2009 In Adults Set realistic goals – don’t worry if the odd day is missed but try to make sure physical activity is part of everyday life Encourage the person to select activities that they enjoy – such as walking, cycling, swimming, aerobics and gardening Minimise sedentary activities, such as sitting for long periods watching television, at a computer or playing video games. Build activity into the day – for example, get off the bus a stop earlier and walk, take the stairs instead of the lift, take a walk at lunchtime. In Children Encourage active play – for example, dancing and skipping. Try to be more active as a family – for example, walking and cycling to school and shops, going to the park or swimming. Gradually reduce sedentary activities – such as watching television or playing video games – and consider active alternatives such as dance, football or walking. Encourage children to participate in sport or other active recreation, and make the most of opportunities for exercise at school. Safety First! Seek advice from GP or practice nurse before starting an exercise programme Start exercising slowly and build up to the recommended levels Wear appropriate clothing and footwear Stop exercising if you feel dizzy or unwell Contacts and Further Information Details of physical activity opportunities and leisure facilities in your area can be found on the local authority websites: http:///www.AberdeenCity.gov.uk http://www.Aberdeenshire.gov.uk http://www.Moray.gov.uk Click on heading ‘Sports and Leisure’ Quick Links – ‘Sport and Recreation’ click on heading ‘Leisure’ (contact details of local Active School Co-ordinators can also be found on these sites) 24 21 April 2009 As an example, the following Physical Activity leaflets are available at the Healthpoints (in Aberdeen and Elgin) and through Health Information Resource Service at Summerfield House, Aberdeen (Tel: 01224 558504) Get Active! Hassle Free Exercise Physical Activity and Weight Loss Physical Activity and Diabetes (British Heart Foundation) (Health Scotland) (HealthEx) (HealthEx) 25 21 April 2009 A3.1.5 Key Facts: Healthy Lifestyle & Alcohol Excess alcohol has a number of negative consequences for your health. Blood pressure. Drinking to excess is linked with a rise in blood pressure. Raised blood pressure increases the risk of heart disease and stroke. Cancer. Drinking alcohol is the second biggest risk factor for cancers of the mouth and throat. Drinking too much also increases risk of breast cancer. Liver disease. Alcohol turns some liver cells into fat and damages others. Repeated heavy drinking scars the liver (liver cirrhosis) and causes permanent damage which can cause death. Drinking alcohol above the sensible guidelines can have other consequences: Sleep problems. Even small amounts of alcohol can prevent the deep sleep we require to feel alert and refreshed. Alcohol dehydrates the body, and this is partly responsible for ‘hangover’ symptoms. Alcohol contains a lot of sugar and is high in calories that will contribute to weight gain. The Guidelines for Sensible Drinking Men: No more than 3-4 units per day (maximum 21 units per week)* Women: No more than 2-3 units per day (maximum 14 units per week)* *With at least 2 days a week without alcohol How many units in a drink? A unit equals 10ml of pure alcohol. That’s how much the body can safely get rid of in an hour. 1 Pint standard beer/lager = 2.3 units; 1 Pint medium strength beer/lager = 2.8 units; 1 bottle standard beer/lager (330ml) = 1.7 units; 1 bottle alcopop (275ml) = 1.5 units; 1 Pint strong cider = 3.4 units; 1 glass of standard wine (175ml) = 2.1 units; 35ml measure gin/rum/vodka/whisky = 1.4 units; Units above are average levels – the strength of drinks varies by brand. Many display their unit content on label to help you drink at a sensible level. For more detailed information see SIGN Guideline 74 “The management of harmful drinking and alcohol dependence in primary care” (2003). http://www.sign.ac.uk/guidelines/fulltext/74 26 21 April 2009 As an example, the following Alcohol advice leaflets are available at the Healthpoints (in Aberdeen and Elgin) and through the Health Information Resource Service at Summerfield House, Aberdeen (Tel: 01224 558504) About Alcohol Sensible Drinking Alcohol & Healthy Living 27 21 April 2009 A3.1.6 Key Facts: Medicines & Surgery as part of the management of obesity Pharmacological treatment should be considered only after dietary, exercise and behavioural approaches have been started and evaluated. Medicine Therapy Medicine treatment should be considered for adults who have not reached their target weight loss or have reached a plateau on dietary, activity and behavioural changes alone and who have: a BMI of 27.0 kg/m2 or more with associated risk factors a BMI of 30.0 kg/m2 or more. The decision to start medicine treatment, and the choice of medicine, should be made after discussing with the patient the potential benefits and limitations. Medicine treatment should be offered only as part of a package of care and support. Medicines include in NICE guidance as suitable treatments for consideration: Orlistat Sibutramine Children Medicine treatment is not generally recommended for children younger than 12 years. Treatment should be started in a specialist paediatric setting, by multidisciplinary teams with experience of prescribing in this age group. Surgical Therapy Bariatric surgery is recommended as a treatment option for people with obesity if all of the following criteria are fulfilled: they have a BMI of 40 kg/m2 or more, or between 35 kg/m2 and 40 kg/m2 and other significant disease (for example, Type 2 diabetes or high blood pressure) that could be improved if they lost weight all appropriate non-surgical measures have been tried but have failed to achieve or maintain adequate, clinically beneficial weight loss for at least 6 months the person has been receiving or will receive intensive management in a specialist obesity service the person is generally fit for anaesthesia and surgery the person commits to the need for long-term follow-up. Children Surgical intervention is not generally recommended in children or young people. Bariatric surgery may be considered for young people only in exceptional circumstances, and if they have achieved or nearly achieved physiological maturity. 28 21 April 2009 Only a multidisciplinary team that can provide the necessary expertise and support should undertake surgery for obesity. For more detailed information: NICE Guideline 43: Obesity (2006) & SIGN 69: Management of obesity in children and young people (2003) 29 21 April 2009 A3.1.7 Sources of advice about how to achieve and maintain a healthy weight & lifestyle Below are some useful sources of advice about achieving and maintaining a healthy weight and lifestyle. For Everyone Sources of information within Grampian Healthpoint offers free advice and information on: practical ways to improve your health; your health concerns; support groups and organisations; how to access NHS services; jobs in the NHS; access to free condoms Healthline is a free, confidential, telephone line that provides healthpoint information. Available: Monday - Friday 9.00am - 5.00pm. Phone the free Healthline number on 0500 20 20 30 http://www.nhsgrampian.org provides details of local sources of advice and contacts for further information about healthy active living. Follow the links to “About NHS Grampian” then “health improvement” and then select “healthy living”. Other sources of information http://www.takelifeon.co.uk Provides a user friendly guide to healthy eating and physical activity for all. http://www.healthinfoplus.scot.nhs.uk for a one-stop shop to quality assured health information for patients, carers and the public. Follow the links to “Wellbeing”. http://www.healthscotland.com Health Scotland provides information to support health improvement in Scotland. It includes is information about food and nutrition and physical activity. http://nhs24.com provides comprehensive up-to-date health information and self care advice for people in Scotland. http://www.nice.org.uk/nicemedia/pdf/CG43publicinfo2.pdf NICE, the National Institute for Health and Clinical Excellence, has issued new guidance to the health service about how to prevent obesity. This is a summary of the evidence presented for the public. http://www.nice.org.uk/nicemedia/pdf/CG43publicinfo1.pdf NICE, the National Institute for Health and Clinical Excellence, has issued new guidance to the health service about how to treat and manage overweight & obesity. This is a summary of the evidence presented for the public. 30 21 April 2009 For Healthcare Professionals In addition to the resources above you can find more information here: Sources of information in Grampian Supporting the Professional: Several services provided by Public Health work together under the ‘Supporting the Professional’ heading. Health Information Resource Service can provide free information leaflets Recommended leaflets: Diet: Eating for Health; Hassle Free Food, Strive for 5 Alcohol: About Alcohol; Sensible Drinking, Alcohol & Healthy Living Physical Activity: The ‘Active Living’ series; Hassle Free Exercise and other resources for a range of topics – a few are recommended below. The service can be accessed by telephone: 01224 558504 (ext. 58504), fax: 01224 558630 (ext. 58630), and email: grampian.resources@nhs.net However, the main access point is via the website: http://www.nhsghpcat.org as this is the service’s catalogue, as well as allowing online orders. Refer a patient to Healthpoint – for advice, support and direction to local services. You can refer a patient by using the “Healthpoint referral pads”. http://www.hi-netgrampian.org: The Grampian Health Improvement Network (HI-Net) provides a web based resource full of health improvement information. You can access: Physical Activity Strategy and Action Plan Focus is Grampian’s Nutrition Health Promotion Strategy Grampian Healthy Weight Strategy Other sources of information http://www.sign.ac.uk/pdf/sign69.pdf: Management of obesity in children and young people (published April 2003) Includes guidance on the prevention and treatment of obesity in children and young adults. (SIGN 8 covered obesity in adults but was published in 1996 and is out of date particularly in relation to treatments for obesity) HTTP://WWW.NICE.ORG.UK/cg43: For the full NICE guideline number 43: Obesity. It includes guidance on prevention of obesity, lifestyle advice and interventions for the treatment of overweight and obesity, and medical or surgical interventions. 31 21 April 2009 A4.0 Screening for diabetes A4.1 UK National Screening Committee (UK NSC) The UK National Screening Committee is chaired by the Chief Medical Officer for Scotland and advises Ministers and the NHS in all four UK countries about all aspects of screening policy and supports implementation. Using research evidence, pilot programmes and economic evaluation, it assesses the evidence for programmes against a set of internationally recognised criteria. Assessing programmes in this way is intended to ensure that they do more good than harm at a reasonable cost. In 1996, the NHS was instructed not to introduce any new screening programmes until the UK NSC had reviewed their effectiveness. More information about the UK NSC can be obtained here: http://www.nsc.nhs.uk More information about the criteria used by the NSC to judge whether to introduce a screening programme can be found here: http://www.nsc.nhs.uk/pdfs/criteria.pdf A4.1.1 Summary of evidence regarding screening for diabetes There have been no national screening programmes in place for: Diabetes Impaired Glucose Tolerance (IGT) Obesity This month (March 2008) saw the publication of the “Handbook for Vascular Risk Assessment, Risk reduction and Risk Management” A report prepared for the UK National Screening Committee to, as outlined in a Press statement by Dr Anne Mackie, Director of the NSC, “help us identify what is desirable, and realistic, to provide…and inform primary care and public heath professionals who are already providing risk assessment and risk management.” It provides an interesting summary of the evidence and suggested ways forward for incorporation of screening and intervention for the main vascular risk factors including obesity and diabetes. You can access the document here http://www.screening.nhs.uk/vascular/VascularRiskAssessment.pdf This section will be updated as further information becomes available. 32 21 April 2009 APPENDIX 1: HEALTHPOINT & HEALTH LINE Healthpoint is a walk in service which offers free and confidential advice and information from trained staff on a wide range of topics: practical ways to improve your health; your health concerns; support groups and organisations; how to access NHS services; jobs in the NHS; access to free condoms Visit healthpoint at: Aberdeen Indoor Market (In Shops) 8 - 10 Market Street Aberdeen Open Monday to Saturday 10.00am to 4.00pm This healthpoint is manned by trained staff Healthpoint information is also available at: Aberdeen Royal Infirmary Concourse David Anderson Building, Foresterhill Road Torry Neighbourhood Centre The Point, St Nicholas House Dr Gray's Hospital, Elgin Healthy Hoose, Middlefield Lhanbryde Community House Denburn Health centre, Aberdeen ASDA Pharmacy, Portlethen Baird's Pharmacy, Huntly Tarland Pharmacy, Tarland Summers Chemist, Fraserburgh Marywell Healthcare centre, Aberdeen Buchanhaven Pharmacy, Peterhead & SCP Management Unit at Spynie, Elgin Denburn Health Centre, Aberdeen Please note that these healthpoints are unmanned. Alternatively, you can contact the healthpoint team for information by email: healthpoint@nhs.net or call on the free Healthline on 0500 20 20 30 Healthline is a free local telephone line available Monday - Friday 9.00am - 5.00pm. Any information requested is sent by post free of charge. All calls are confidential and are answered by trained health advisers You can access these services with or without referral from a healthcare professional. 33 21 April 2009 APPENDIX 2: Measuring overweight & obesity Adults BMI (body mass index) To take account of the expected differences in weights in adults of different heights, an index of weight-for-height has been devised as the BMI. This is calculated as: BMI = Weight (Kg)/Height (m2) Example: An adult of 70 kg with a height of 175 cm has a BMI of: BMI = 70 (Kg)/1.75 x 1.75(m2) = 22.9 Interpreting BMI Underweight: Healthy weight: Overweight: Obesity, class I Obesity, class II Obesity, class III <18.5 18.5 -24.9 25.0-29.9 30.0-34.9 35.0-39.9 ≥40 Waist circumference Excess abdominal fat carries particularly elevated health risks. Waist circumference is the most practical marker of abdominal fat. (Many people understand this concept as ‘apple’ versus ‘pear’ shaped.). If the BMI is <35 then waist circumference is a useful marker for additional health risks. Interpreting the waist circumference: Substantially increased risk Men >102 cm (~40 inches) Women > 88 cm (~35 A waist circumference of less than 94cminches) in a man, and less than 80 cm in a Increased risk Men > 94 cm (~37 inches) Women > 80 cm (~32 inches) woman, means that their abdominal fat accumulation is not excessive. Children Body mass index (BMI) (compared to a reference population of children of the same age and sex) is recommended as a practical estimate of overweight and obesity in children and young people, but needs to be interpreted with caution because it is not a direct measure of fat tissue. For clinical use, SIGN recommends that obesity should be defined as those with a BMI >=98th centile of the UK 1990 reference chart for age and sex. For overweight, a BMI >=91st centile should be used. For more detailed information: SIGN guideline 69 http://www.sign.ac.uk/pdf/sign69.pdf 34 21 April 2009 APPENDIX 3: SUPPORTING THE PROFESSIONAL www.nhsghpcat.org 35 Section B: Supporting SelfManagement B1.0 Structured Review Schedules ........................................................ 37 B1.1 Regular Review Schedules ...................................................... 37 B1.2 Every structured diabetic review ............................................... 37 B1.3 Content of Annual Checks ........................................................ 38 B2.0 Education ......................................................................................... 39 B2.1 Newly Diagnosed Diabetes ...................................................... 40 B2.2 Ongoing Diabetes Management ............................................... 41 B2.3 Diabetes Courses & Resources ............................................... 42 B3.0 Lifestyle ........................................................................................... 43 B3.1 Driving ....................................................................................... 43 B3.2 Occupations .............................................................................. 48 B3.3 Physical Activity ........................................................................ 50 B3.4 Psychological Wellbeing ........................................................... 53 B3.4.1 Introduction ................................................................... 53 B3.4.2 Depression .................................................................... 53 B3.4.3 Anxiety .......................................................................... 53 B3.4.4 Screening for Anxiety and Depression .......................... 54 B3.4.5 Other Psychological Issues ........................................... 54 B3.4.6 Behaviour Change ........................................................ 56 B3.5 Smoking .................................................................................... 59 B3.5.1 Smoking cessation ........................................................ 59 B3.6 Travel ........................................................................................ 60 B4.0 Information Technology .................................................................. 62 B4.1 National and Regional Diabetes IT Overview ............................ 62 B4.1.1 SCI-DC – Introduction ................................................... 62 B4.1.2 Accessing SCI-DC Network .......................................... 63 B4.1.3 SCI-DC Network - Overview.......................................... 66 B4.1.4 SCI-DC – Help / Contacts ............................................. 69 B5.0 Contraception, Pregnancy and the Management of Gestational Diabetes Mellitus ............................................................................. 71 B5.1 Contraception ............................................................................ 71 B5.2 Planning pregnancy .................................................................. 72 B5.3 Confirmed pregnancy ................................................................ 74 B5.4 Management of Gestational Diabetes ....................................... 75 B5.4.1 Follow up of Patients with Previous Gestational Diabetes ...................................................................................... 77 B6.0 Children’s Services ......................................................................... 78 36 B1.0 Structured Review Schedules B1.1 Regular Review Schedules Patient empowerment through education to encourage optimal selfmanagement should be central to each review. Regular review of individuals with diabetes should address both metabolic control and diabetic complication screening. Reviews will involve metabolic management, education, health promotion, and detection and management of diabetic complications. This care must be structured, locally agreed and documented and may involve a variety of professionals in various locations carrying out different parts of this programme. Interim metabolic and troubleshooting checks at three to six month intervals are usually appropriate. Systematic screening for the early detection of the microvascular and associated macrovascular complications of diabetes is also an essential component of structured diabetes care. Effective interventions are available at an early or latent stage of the disease processes which can slow or prevent further progression, and which would not be as effective if delayed until the problem had become clinically obvious. Complication screening is usually performed on an annual basis, either as a formal annual review or on a rolling program basis, unless problems have been previously identified. B1.2 Every structured diabetic review The patient should be assessed and advised regarding: The impact of diabetes on lifestyle and psychological well-being. Symptoms of hyperglycaemia Occurrence and warning symptoms of hypoglycaemia Results of home monitoring if available. Episodes requiring hospital admission (including DKA) Medication The following parameters should usually be recorded and discussed with the patient at each visit: Blood pressure (particularly if hypertensive or previous recording elevated). HbA1c (not more often than every 3 months). Weight and BMI. Urinalysis for ketones, protein and glucose. An individual care plan and goals should be reviewed, agreed with the patient and updated as appropriate. Additional interim visits may be required to address specific problems. 37 B1.3 Content of Annual Checks The patient should be assessed and advised regarding: • • • • • • The impact of diabetes on lifestyle and psychological wellbeing. Symptoms of hyperglycaemia Occurrence and warning symptoms of hypoglycaemia Results of home monitoring if available. Episodes requiring hospital admission (including DKA) Medication The following parameters should usually be recorded and discussed with the patient at each visit: • Blood pressure (particularly if hypertensive or previous recording elevated). • HbA1c (not more often than every 3 months). • Weight and BMI. • Urinalysis for ketones, protein and glucose. The following parameters should be measured or examined on a minimum of an annual basis, and are selectively further expanded in the following sections. Blood pressure (sitting after 5 minutes rest) Visual acuity (corrected with pin hole if worse than 6/9) and retinal screening. Within Grampian, the Retinal Screening Service invites people on the Diabetes Register for retinal screening. Inspection of feet for callus, active lesions, colour and foot pulses. Foot sensation using 10g monofilament. Calculation of foot risk. Injection sites (in insulin treated people) Urine for protein First morning urine for microalbumin screen if proteinuria negative. (Persistent proteinuria, when confirmed on two consecutive occasions, should be quantified using a protein/creatinine ratio) Glycosylated haemoglobin (HbA1c) Serum lipid profile Serum creatinine and eGFR Serum TSH (optional). Consider screening for Coeliac Disease The patient should be assessed and advised regarding the following: Smoking habits Symptoms or other evidence of cardiovascular disease Symptoms suggestive of peripheral vascular disease Alcohol consumption Contraception and pregnancy planning if appropriate (remember the increasing number of women with Type 2 diabetes in this group) Symptoms of erectile dysfunction Symptoms of depression Immunisation Exercise and physical activity Diet. Access should be available to dietetic specialist advice as required. 38 B2.0 Education Education of the person with diabetes about their condition and its management is a key component in the promotion of successful self-care. Healthcare professionals can make a major contribution by helping those with diabetes to understand their disease and the potential for intervention to improve outcomes. In particular, emphasis on the beneficial effects of lifestyle management should never be neglected. Similarly, facilitation of appropriate learning with respect to administration of medications and self-monitoring are essential parts of effective medical management of diabetes. Educational input at diagnosis of the condition will need to be substantial and will usually need ongoing reinforcement. The ‘correct’ amount of information to present at any encounter is problematic and should not greatly exceed the patient’s current needs or capacity to take new knowledge on board. It is important to be aware that people learn best when physically and emotionally ‘comfortable’ and important to remember how stressful many individuals find interactions with healthcare professionals. In attempting to enlighten, it is more important to check understanding regularly than to continue to impart ever more information; in this context less is often more. Also note that different issues will be most appropriately addressed at different stages of the patient experience. In facing the challenge of selecting topics to be addressed, the healthcare professional must always attempt to recognise and acknowledge the patient’s current agenda. Skilled educators will understand the need to combine factual knowledge and skills training with appropriate empathy and reassurance and will be able to improvise on the breadth and depth of material appropriate to a given consultation or enquiry. They will be aware of the variety of methods that different people prefer to learn by and will use relevant combinations of spoken, written and demonstrated material as well as leaflets, video recordings, websites etc., that most appropriately match the patient’s needs. Ideally they will have had the opportunity of some training in various methods of teaching, including individual and group work. Many different media, texts and courses are available for diabetes education, particularly in relation to commonly recurring situations. It is important to have a broad range of resources and skills to respond to patients’ various needs and preferred learning styles. It is also useful to seek opportunities to customise or develop training materials in line with local demands and patterns of service provision and support. More specific information follows on : i) The educational approach to the newly diagnosed patient ii) Ongoing education iii) Introduction of insulin therapy iv) Diabetes Courses and Resources 39 B2.1 Newly Diagnosed Diabetes Attention needs to be paid to the manner in which information about the diagnosis and its implications are delivered to the patient. As diabetes is so prevalent, most individuals already have some ideas about, and experience relating to, diabetes that may well be incomplete or misleading and thus cause undue distress upon diagnosis. Diabetes UK (Grampian Voluntary Group) provides Education packs for those newly diagnosed with Type 2 Diabetes that are currently distributed to practices around the region; these cover a wide range of issues of potential relevance. Group Education sessions with specialist nurse, dietetic and podiatry input for newly diagnosed Type 2 patients (+/- partners) are available at various localities throughout Grampian. Additional opportunities may be required for one to one follow-up consultations with diabetes team members. Information for those with Type 1 diabetes is also available from Diabetes UK, but the need for early initiation of insulin therapy means there is an even greater need for education time and timely education. Early, and perhaps serial, follow-up to is particularly important in this situation. It is essential that adequate instruction is given on the use of any equipment supplied (e.g. injection devices, blood testing equipment). The effectiveness of such tuition needs to be assessed sensitively, recognising differences in engagement, aptitude and application among patients. All material considered for presentation to newly diagnosed patients should be considered again at subsequent follow-up in recognition of the common need for reinforcement, and the evolution of the patients understanding and immediate focus of engagement. A checklist of some of the commoner items to be considered in the early period following the diagnosis of diabetes is reproduced below. This list is neither exhaustive nor is coverage of many items obligatory. Furthermore, it should be used at a pace and to an extent commensurate with its achieving the aims of equipping the patient to cope more effectively with diabetes and its management, and not to simply to record coverage of a list. DIAGNOSIS What is diabetes? How has the diagnosis been confirmed? What are the implications of the diagnosis on health? LIFESTYLE ISSUES Diet: quality, quantity and distribution through the day Activity and exercise Alcohol intake and health Smoking and resources to aid cessation Conception, contraception and sexual health 40 Travel and holidays MONITORING What to expect (glucose, HbA1c, weight, blood pressure, eyes, feet, urine) Meaning and implications of results Self-monitoring: whether, why, how and when? Effects of intercurrent illness MEDICATION As an adjunct to self-management/ lifestyle modification Evolving disease and treatment plans Range and nature of treatments Use of non-hypoglycaemic, risk-modifying drugs OTHER ISSUES Driving Employment Footwear and foot care ID cards/ bracelets etc Free prescriptions and eye tests B2.2 Ongoing Diabetes Management Education in various aspects of diabetes management will be a continuing component of good diabetes care which will make considerable demands on the knowledge, skill, experience and professionalism of those involved in diabetes health care. Several issues will often need to be revisited with patients and topics for discussion will sometimes be introduced proactively during review consultations, and sometimes be in reaction to a patient’s current particular concerns. Once again a range of educational approaches and resources will allow for the requirements of each patient to be best met. Some situations will have a particular set of topic areas that require to be covered. Prominent among these will be the introduction of insulin therapy and a second indicative table of items to consider discussing with the patient at this stage is produced below. INTRODUCING INSULIN What is insulin and what does it do? Insulin types Insulin injections Doses and dose adjustment Supplies and disposal Hypoglycaemia: causes, recognition, management, avoidance Sick day rules Driving, DVLA and employment issues 41 B2.3 Diabetes Courses & Resources The MCN has an Education Advisory Group (contactable via the MCN Office) that meets quarterly and is available to advise the MCN, and individuals or groups across the region involved in diabetes care, on matters concerning educational strategy and delivery. There is also local representation on the national Diabetes Education Advisory Group, a subgroup of the Scottish Diabetes Group. Many diabetes educational opportunities are available for both professionals and their patients. Training needs and course provision naturally vary over time and anyone looking for something specific, or more general, will always do well to consult colleagues about current or recent experience of what is available. There is a strong history of locally developed and delivered educational initiatives within Grampian. Forthcoming courses and events are advertised on the Grampian Diabetes website www.diabetes.nhsgrampian.org Among the local events for health care professionals on offer recently are the Lilly GP Diabetes Scholarship, Managing the Change to Insulin in Type 2 Diabetes and Diabetes: Helping Nurses to Help Patients to Help Themselves. The Grampian Diabetes Managed Clinical Network also hosts an Annual Professional Conference in early summer. More substantial courses, some including distance learning, are provided by various Higher Education Institutions across the UK. Advice on diabetes education for professionals and patients also appears on the Diabetes in Scotland website: www.diabetesinscotland.org.uk Among the current organised educational activities for patients in Grampian are New Patient Groups, Patient Exercise Classes and DAFNE (Dose Adjustment for Normal Eating) with further information available via the Grampian Diabetes website or through health care professionals. A wide variety of leaflets and literature are available from a number of sources and these are often being reviewed and updated. The internet is well established as a potential source of information for all, although one must always be aware of commercial influences that could direct contents or emphasis. A substantial amount of good quality information has been available for some time on the Diabetes UK website: www.diabetes.org.uk In 2008, NHS Scotland launched ‘My Diabetes My Way’, an interactive website designed to help anyone with an interest in diabetes. Its partner website comprises the ‘Diabetes Information Plus’ e-Library of quality assured information. The respective web addresses of these NHSS websites are: www.mydiabetesmyway.scot.nhs.uk and www.diabetesinfoplus.co.uk . Another potentially useful and interesting resource for patients and professionals is the Diabetes Stories website (www.diabetes-stories.com), a collection of 100 oral histories recording the personal experiences of patients, relatives and health care workers spanning more than 70 years. 42 B3.0 Lifestyle B3.1 Driving Full guidance on medical rules is available on the DVLA website: www.dvla.gov.uk Patients with diabetes treated with insulin must inform the DVLA of their diagnosis and type of treatment. Patients with diabetes treated by diet or tablets no longer need to inform the DVLA unless they develop other complications or have frequent episodes of hypoglycaemia (see patient information sheet in “At a glance guide”). All patients are advised to inform their car insurance company at diagnosis and if their type of treatment changes. For the individual patient information sheets please look at the “At A Glance guide” on the DVLA website and download and give to patients as appropriate: Diet and tablet treated diabetes Insulin treated diabetes C1 licensing and insulin Types of driving licence: Group 1 entitlement allows the driving of vehicles up to 3.5 tonnes or with up to 8 passenger seats, including motorcycles and mopeds. For patients on diet or oral hypoglycaemic agents a licence lasting until age 70 will be issued in the absence of other complications. Drivers whose diabetes is treated with insulin will be issued with a 1,2 or 3 year licence, provided they are able to recognise warning symptoms of hypoglycaemia and have no other complications which would affect driving including recurrent hypoglycaemia. Group 2 entitlement allows the driving of vehicles over 3.5 tonnes or more or with more than 8 seats. This includes medium sized lorries (3.5-7.5 tonnes, C1), minibuses (D1), lorries (C), buses (D). Before January 1997 drivers who obtained a normal car driving licence were automatically awarded C1 and D1 entitlement. These holders of C1/D1 entitlement retain it until their licence 43 becomes due for renewal, when they must meet the medical standards prescribed for all lorry and bus drivers. Group 2 drivers treated with oral hypoglycaemic agents must inform the DVLA and group 2 entitlement will continue as long as they can meet all group 2 medical standards. New applicants on insulin or existing drivers starting insulin are barred in law from driving HGV or PCV vehicles (C and D) from 1/4/91. Drivers licensed before 1/4/91 on insulin are dealt with individually and licensed subject to satisfactory annual Consultant assessment. Regulation changes in April 2001 allow “exceptional case” drivers to apply for or renew their entitlement to C1/C1E to drive small lorries with or without a trailer subject to meeting all “Qualifying Conditions”. Regular review by a consultant Diabetologist is required. Patients on insulin are not allowed to hold a D1 licence (minibus). Taxi drivers The licensing of taxi-drivers is undertaken by individual local authorities and therefore different standards are applied in different parts of the country. However the DVLA recommended that Group 2 regulations should be applied although this does not currently take place in Grampian. Emergency response vehicles The DVLA recommends that Group 2 rules are applied. How are driving licences renewed? At the time of licence renewal or at initial declaration of insulin treatment patients on insulin will be required to complete a self-declaration form about their diabetes with particular reference to hypoglycaemia and glucose monitoring. If no problems are identified it is usual for the licence to be renewed without requesting a medical report. However in all cases where specific issues are identified then a medical report will be required and will be sent to the doctor identified by the patient. Information required includes whether the patient knows about the driving advice, monitors appropriately, any recent episodes of severe hypoglycaemia (in last 12 months) or has lost awareness of hypoglycaemia. Diabetes related complications and driving All drivers are required by law to be able to read a standard size car number plate in good light at 20.5 metres. The advantage of this test is that it is easily self-administered. Problems which affect the field of vision must be notified to the DVLA. Drivers who have had laser treatment to both eyes for retinopathy or suffer other conditions affecting both eyes must inform the DVLA so that the extent of the problem can be assessed. Drivers who develop problems with either the nerves or the circulation in the lower limbs, sufficient to prevent safe operation of the foot pedals, must inform the DVLA. This is unlikely to prevent driving as problems may be overcome by either restricting driving to certain types of vehicles e.g. those with automatic transmission, or by appropriate adaptations such as hand operated accelerator / brake. Insulin Treated Diabetes and Driving 44 Drivers who have any form of diabetes treated with any insulin preparation must inform DVLA. At the time of starting insulin patients should be advised not to drive until their blood glucose levels are stable. Hypoglycaemia The risk of hypoglycaemia (low blood sugar) is the main hazard to safe driving. Many of the accidents caused by hypoglycaemia are because drivers continue to drive even though they are experiencing warning signs of hypoglycaemia. A patient must inform DVLA : If he / she develops impaired awareness of hypoglycaemia If he / she suffers disabling hypoglycaemia at the wheel If he / she has frequent episodes of hypoglycaemia However in some circumstances the patient will be allowed to drive by the DVLA and it is up to individual health professional to advise if the patient if fit to drive whilst awaiting to hear from the DVLA. If a patient drives against medical advice then his / her insurance and driving licence are deemed not valid and the patient is therefore driving without insurance or a valid driving licence. Precautions advised for Drivers with insulin treated diabetes: Do not drive if you feel hypoglycaemic or if your blood glucose is less than 4.0 mmol/l. If hypoglycaemia develops while driving stop the vehicle as soon as possible in a safe location, switch off the engine, remove the keys from the ignition and move from the drivers seat. Do not resume driving until 45 minutes after blood glucose has returned to normal. It takes up to 45 minutes for the brain to fully recover. Always keep an emergency supply of fast-acting carbohydrate such as glucose tablets or sweets within easy reach in the vehicle. Carry your glucose meter and blood glucose strips with you. Check blood glucose before driving (even on short journeys) and test regularly (every 2 hours) on long journeys. If blood glucose is 5.0mmol/l or less, take a snack before driving. Carry personal identification indicating that you have diabetes in case of injury in a road traffic accident. Particular care should be taken during changes of insulin regimens, changes of lifestyle, exercise, travel and pregnancy. Take regular meals, snacks and rest periods on long journeys. Always avoid alcohol. 45 Hypoglycaemic seizures If a patient has a seizure which is hypoglycaemia related they may be allowed to drive after notification to the DVLA. However, before this occurs clear evidence will be required by the DVLA that hypoglycaemia was the cause of the seizure and that there is very low risk of recurrence. Pending an investigation / report the patient should be advised not to drive and to inform the DVLA immediately. C1/C1E Entitlement Any C1 or other Group 2 licence reports must be completed by a consultant in diabetes and require annual review. Qualifying Conditions: No hypoglycaemic attacks requiring assistance whilst driving within the previous 12 months. Regular monitoring at least twice daily and at times relevant to driving. The use of a memory chip meters for such monitoring is strongly recommended. Examination every 12 months by a hospital consultant, who specialises in diabetes. At the examination the consultant will require sight of blood glucose records and preferably the meter for the last 3 months. No other condition, which would render you a danger when driving C1 vehicles. required to sign an undertaking to comply with the directions of doctors(s) treating the diabetes and to report immediately to DVLA any significant change in your condition. Exenatide and gliptins and driving Exenatide has recently been licensed as a treatment for use in Type 2 diabetes, in combination with metformin and/or with sulphonylureas. Trials published to date show a small but significant increased risk of hypoglycaemia when exenatide is used in conjunction with a sulphonylurea. It would appear that when the gliptins (DPP4 inhibitors) are used with sulphonylureas, the hypoglycaemia risk is similarly raised. The increased risk of hypoglycaemia from exenatide or gliptins when used in combination with sulphonylureas is such that these are felt to be a potentially high risk treatment for drivers holding Group 2 (LGV or PCV) licences and that individual assessment will be required. Therefore any patient who holds a Group 2 licence and who is commenced on either a gliptin or exenatide in combination with a sulphonylurea must report this to the DVLA (combination with metformin alone does not require reporting). The use of gliptins and exenatide carries no specific driving restrictions for Group 1 (car or motorcycle) licences. 46 DVLA website: www.dvla.gov.uk 47 B3.2 Occupations An occupational history is essential at diagnosis in order to help patients adjust their diabetes to fit with work their routine. Some occupations may be considered hazardous for patients with diabetes. Patients at particular risk of hypoglycaemia ie those on insulin or sulphonylureas should be given advice about appropriate detection and management of hypoglycaemia to minimize risks which may occur. They should also be advised to consider carefully the risks they may be exposed to if working unsupervised and the effect that unstable shift patterns may have on their diabetes control. Hazardous occupations Many occupations involve an element of hazard or risk. This could involve anything from working near heavy machinery to being an active fire fighter. Regular monitoring of blood glucose needs is advised and disabling hypoglycaemia and loss of warning signs of impending hypoglycaemia should be discussed at each clinic review. Patients undertaking physically active work should also be aware of their carbohydrate requirements and insulin adjustment to prevent hypoglycaemia. The presence of other diabetes related complications may pose additional risk eg advanced retinopathy, nephropathy or severe neuropathy or coronary heart disease. The role of the health professional and the employer Patients should be encouraged to declare their diabetes when applying for employment. The Disability Discrimination Act (updated 2005) provides legal grounds for people with diabetes to address the issue of discrimination. Within organisations that are not exempt from the Act, an employer is no longer able to dismiss a person because they have developed diabetes. Employment cannot be refused on the grounds of having diabetes – indeed employers need to prove why they could not employ an individual with diabetes. Employer’s knowledge of diabetes may be minimal and health professionals should be willing to liaise with employers to try and dispel the myths that are commonly associated with diabetes. People with diabetes should be encouraged to tell their work colleagues and the first-aider about their diabetes so they know how to recognise and treat hypoglycaemia. Health professionals should ensure that people requiring insulin are on the most appropriate insulin regimen to fit in with the patients work schedule e.g. multiple injection regimen for shift workers. Patients wishing to work overseas should be advised to ascertain the availability of appropriate medical support if required. 48 Blanket bans do exist in relation to certain employment especially if a person’s diabetes is treated with insulin. These bans tend to be where a job is considered hazardous. As the law stands, some occupations that have their own medical standards can also legally refuse to employ people with diabetes. Occupations with a blanket ban on recruiting people with insulin treated diabetes:Armed forces Airline pilot or airline cabin crew Air traffic control Jobs requiring a Large Goods Vehicle (LGV), Passenger Carrying Vehicle (PCV) licence or a minibus (D1) licence. If a person drives a C1 class vehicle for a living, and develops Type 1 diabetes or starts insulin treatment, they will have to be medically assessed on their fitness to drive. Train driver There was a blanket ban on employing fire fighters with Type 1 diabetes. However, several individuals challenged the ruling and were allowed to continue active service, if they were already employed as fire fighters. Prison service Working offshore eg on oilrigs Regulations concerning are being relaxed as of May 2008. Patients requiring insulin may be given restricted certification of fitness to work offshore if the following requirements are met: There is a report from the individual treating physician The patient has been assessed and not considered to be at excess risk of hypoglycaemia The patient must be fit to respond to any emergency situation on the platform There has been good control of their diabetes for a minimum period of 6 months The patient can self-manage their insulin requirements The patient does not have impaired awareness of hypoglycaemia The operator’s medical advisor must be consulted regarding the individual case and must agree with the proposal to allow the individual offshore There must be a supply of glucagon and iv dextrose on the platform Certification is restricted to a named platform and restricted to a maximum of 1 year. Individuals require annual review Patients on diet or oral agents will be assessed for their risk of hypoglycaemia and presence of complications which may affect mobility and ability to respond to emergency situations. 49 Seafarers On a UK registered ship the following regulations apply: For patients with diabetes not on insulin: Deemed unfit for distant waters (ie > 150 miles from safe haven in UK waters) and for watchkeeping until stabilized but then may be fit for all areas. For patients with diabetes requiring insulin: Deemed unfit for all duties until stable and then permanently unfit for distant waters and watchkeeping and emergency duties. B3.3 Physical Activity All people with diabetes should be asked about physical activity and most should be encouraged to increase activity. Suitable educational material is available on the NHS Scotland website www.mydiabetes.myway.org Improving health All people (including health professionals) should be advised to maintain at least moderate levels of activity, e.g. walking. A gradual introduction and initial low intensity of physical activity should be recommended for sedentary people with diabetes. Exercise and physical activity is best undertaken regularly i.e. preferably daily or on alternate days. Once a week is of limited benefit. As a rough guide the first stage would be to encourage an accumulation of 30 minutes of moderate activity (e.g. walking) on most days of the week. The second stage is to encourage those who are motivated. These individuals could be encouraged to engage in more vigorous activity at least three days per week. Exercise programmes are more likely to be successful and be maintained if they are home-based and accompanied by on-going support – so rushing out and joining a gym may not necessarily be the answer. Patients with complications should seek medical advice before embarking on exercise programmes. If patients have problems with mobility there are easy exercise programmes which they could do, e.g. chair exercises Above all encourage patients to choose an activity which they will 50 enjoy. Health professionals should discuss barriers to increasing physical activity and likely causes for relapse with patients. Patients should be encouraged to set realistic targets for increasing physical activity. Appropriate footwear and socks should be encouraged and patients with neuropathy may need to discuss their needs with a podiatrist. Exercise and blood glucose control (also see section C4.0 hypoglycaemia) For patients who routinely monitor blood glucose and/or are insulin treated, it is advisable to monitor blood glucose before and after exercise. It is usually unnecessary to reduce oral hypoglycaemic agents although regular activity resulting in weight loss and improved glycaemic control may require adjustments in medication. People taking part in high intensity sporting activities may require specialist advice and changes in insulin regimen. Hypoglycaemia related to exercise may occur at the time of exercise or up to 24 hours after when glycogen stores are being replenished. The risk of hypoglycaemia is related to the intensity and duration of exercise and also how used to exercising the patient is (those with little experience may be more likely to go hypo compared with those exercising regularly). Patients should be advised to consider reducing insulin doses before and after exercise (including the day afterwards), increase dietary carbohydrate and alter injection sites, e.g. avoiding legs if running or arms if kayaking as this will increase absorption of insulin. It is advisable for patients to have easy access to rapid-acting carbohydrate (e.g. orange juice / jelly beans) when exercising. Additional nutritional advice, particularly for those engaging in more vigorous physical activity is available on the following website: www.runsweet.com. 51 Other ways of helping motivate patients to increase physical activity It is helpful for each diabetes clinic (in primary or secondary care) to be able to provide information to patients on local facilities. Each locality will have various opportunities for exercise. Local councils can provide details of classes running in the area and also details of opening times of swimming pools etc. Details of walking routes are also available from Health Point. Pedometers These have been shown to help people increase physical activity levels. The reliability of pedometers varies greatly and people wishing to use one should be advised to purchase it from a reliable outlet rather than the back of a cereal packet! Pedometers should be attached to the hip belt for best accuracy. Pedometers are most effective when a “step goal” is agreed with the patient. When first using a pedometer it is recommended that people wear it for a week and document the average number of steps per day. If they wish to increase physical activity an appropriate goal may be to consider trying to increase the number of steps by 1000 - 1500 on 3 days of the week. After 2-4 weeks the target could be increased to an additional 3000 steps on 3 days of the week. For many patients the frequently cited target of 10000 steps per day is unrealistic. Exercise Classes Some patients enjoy the social interaction and motivation of exercise classes. Diabetes exercise and information classes have been running in Grampian for 2 years. At the present there are six classes (including an evening class and aquaaerobics class) which run for 1.5 hours with about 1 hour of exercise followed by 30 minutes of group discussion. Further details including information sheets and referral forms can be found on the MCN website www.diabetes.nhsgrampian.org Although many patients attend other exercise classes at various venues throughout Grampian, patients new to exercise classes may find some classes too strenuous. This can be de-motivating for patients. Some patients may be suitable for referral to Grampian Cardiac Rehabilitation Classes although, again some patients may find this too strenuous if they have not been through the earlier stages of the Cardiac Rehab programme (http://www.gcra.org.uk/). 52 B3.4 Psychological Wellbeing B3.4.1 Introduction Self-care relates to the way that people choose to lead their lives and to their psychological wellbeing. Psychological wellbeing is important to those working in diabetes services because it has a profound effect on the efforts of people with diabetes to self-care. It is important to ascertain when significant psychological issues are present because this will influence management decisions (for example, whether or not we encourage lifestyle change), and can help when to advise patients to get additional help if necessary (eg visit their GP for management of depression) The most common issues are clinical depression and anxiety. It is best to think of peoples’ experience of depression and anxiety as occurring along a continuum (ie you can have a little or lots of it) rather than it simply being present or absent. B3.4.2 Depression Significant levels of depression, for example, are present in about 20% of people with diabetes, and are associated with poorer glucose control and more severe illness course (de Groot et al, 2001). That is not surprising in view of the fact that key characteristics of depression include: lack of motivation & energy; disrupted eating patterns, and negative thinking styles particularly about being a failure and about being unable to make positive changes. Because of beliefs about being a failure and general reduced levels of resourcefulness, great care needs to be taken if setting goals with people who have significant levels of depression. Almost always, it is wiser to postpone efforts to implement efforts to change behaviour until the depression has been successfully treated. B3.4.3 Anxiety Clinical anxiety too is more prevalent among people with diabetes than in the general population with a point prevalence of about 17%. There is a biological component to anxiety, namely the release of stress hormones such as cortisol and adrenaline. These hormones in turn cause other biological responses including the release of glucose into 53 the bloodstream, and other somatic symptoms which overlap with symptoms experienced during hypoglycaemia. Because of the release of glucose into the blood and because commonly people with diabetes misinterpret symptoms of anxiety as indications of low blood glucose (so they take unneeded action to raise blood glucose), clinical anxiety is also associated with poorer control (Anderson et al, 2002). Anxiety is associated with thoughts about future disasters occurring (in minutes, days, months or years) and these recurring worries could be about health-related or non-health-related events. Thus, health professionals should be careful when providing information to anxious people because they have a strong tendency to superimpose a future “disaster-type” message, which will further fuel worry and disturb blood glucose control. B3.4.4 Screening for Anxiety and Depression Identifying depression and anxiety in people with diabetes is notoriously difficult (CMO Psychology Advisory Committee, 2003). This is especially true in the case of those with significant but mild to moderate levels because they can easily mask their difficulties over the course of consultations. These are the very people who can be helped most easily by self-help; psychological therapy, or medications. They are also the very people that are unwittingly asked by health professionals to make changes that are most probably not possible until their psychological difficulties are resolved. If it is deemed appropriate to investigate whether someone might have significant levels of depression or anxiety, the use of a screening questionnaire may be helpful. The Scottish Diabetes Group recommends the Hospital Anxiety & Depression Scale (HADS)1 which takes patients about five minutes to complete and us about two minutes to score. If other common inventories are used such as the PHQ-9; Beck’s Anxiety Scale, or Beck’s Depression Inventory it is important to bear in mind that more false positives will be identified than if the HADS is used. B3.4.5 Other Psychological Issues Cognitive problems Dementia (including the early stages of) is more common as people age (prevalence among over 65s: 5-8%; over 75s: 15-20%; over 85s: 25-50%). Non-dementia related cognitive changes can also occur particularly in the presence of cardiovascular risk factors. Key factors to bear in mind include 54 possible difficulties with memory and learning; planning, and organising all of which can impair significantly self-care. Eating disorders These are more common among people with diabetes than the general population and like the other issues above typically impair self-care, for example, because they can involve manipulation of insulin. Anorexia and bulimia nervosa are both characterised by preoccupations with food and body image (dread of weight gain and beliefs about being overweight and so on). Those with anorexia engage in deliberate weight loss strategies and have a BMI < 17.5. Bulimics have an irresistible craving for food which is consumed in large amounts over short periods: this is typically followed by vomiting. There is an Eating Disorder Clinic in Aberdeen which specialises in the treatment of people experiencing these types of problems. 55 B3.4.6 Behaviour Change The guidance below provides brief, general information and some advice about helping patients to change behaviours, which staff will need to adapt to suit their specific model of working. Those who attend adult diabetes services in primary and secondary care have lifestyle habits that have been present for many years. Unsurprisingly then, key areas of concern to professionals working with people who have diabetes have been repeatedly highlighted as notoriously difficult to influence over extended periods of time, and this is especially true of behaviours targeted at prevention of future health problems. Key ways to approach changing lifestyle behaviour that make success more probable. Good general clinical skills are imperative ie the ability to establish and maintain a good working relationship with patients and to encourage them to make changes in a warm, sensitive and considered manner. There is about 40 years of research that indicates that how health professionals get on with patients plays a much more important role in helping people to make changes than technical skill & knowledge. Education and information alone are rarely sufficient to change long-standing lifestyle behaviours. They generally do however play an important part in behavioural changes programmes. So, the best way to think about information provision is as necessary but not sufficient. The job of helping people to make changes to the way they live their lives is really about encouraging, building confidence, and motivating. Existing behaviours tend to serve a function (purpose). In general, people are trying to be happy and their efforts are often focused on the shorter-term. So what might seem like odd behaviours or ideas are often idiosyncratic efforts to either increase happiness or decrease unhappiness. One example might be a person with Type 1 diabetes who is extremely fearful of nocturnal hypoglycaemic episodes so loads up on biscuits and toast before bed. She is trying (successfully) to avoid immediate, very uncomfortable thoughts (about dying) and feelings (fear, anxiety). The pattern is similar for people who frequently comfort eat when distressed. The same behaviour serves a different function in different people. For example, one person might avoid testing blood glucose levels because he cannot face the uncomfortable thoughts and feelings (eg about being a failure or future health complications) that occur if 56 readings are higher than he would like, whereas another might do so because she doesn’t want others to know she has diabetes. The function or purpose of existing behaviours are the maintaining factors, i.e., it explains why the current situation continues. So, for example, loading-up on biscuits before bed in people with significant fear of hypoglycaemia continues because it serves a purpose (successful avoidance of negative thoughts and feelings). Similarly, many people who (like most of us) have tried and failed to lose weight or maintain weight loss are seemingly disinterested in trying again. The purpose of this apparent inactivity is often to avoid the typical feelings of frustration, disappointment and so on which are typically associated with not losing the amount of weight desired / putting weight back on. In both cases, to these people the outcome is positive, in the shorter-term at least. Helping change behaviour means patients are moved toward what they find difficult and means focusing on the pay off between shorter and longer-term outcomes. So in helping people overcome hypoglycaemic fear they may be advised to eat and drink gradually less before bed, thereby exposing them to their uncomfortable thoughts and feelings, whilst helping them become mindful of the longer-term gains of addressing this problem. It is worth bearing in mind that often health alone is not a great motivator for people to make significant changes to the way they lead their lives. All of us could spend every hour of every day in efforts to maximise health but few would choose to do so, even those with serious medical conditions. Generally, change is more likely if health gains can be linked to what people feel is important compared to if change is only linked to health outcomes. People do tend to be motivated by their values, that is, those things in life which are important to them. Commonly, values include intimate relationships; children and grandchildren; extended family; friendships; enjoyable hobbies, pastimes and sports, and work. Goal Setting This is an important aspect of helping patients to improve self-care. Although seemingly simple, it is inevitably harder in practice. o Think SMART: goals should be Specific; Measurable; Achievable; Relevant, and Timely. o Be active in negotiating goals because typically people will have unrealistic expectations of themselves ie try to ensure goals are achievable. o Nothing de-motivates like failure so early successes are especially imperative. o Write down goals and methods for achieving them – a copy for patients to take away and for clinical records is often helpful. 57 o o o o Diary keeping can help track progress for people with diabetes and their clinicians. Link diaries of behaviour or outcomes to the fact that change is rarely linear rather we tend to do well perhaps one week and not so well the next (they can look back to baseline for example and note overall progress). It’s normal to have setbacks. You can strengthen the likelihood of new behaviours becoming established by helping patients link behaviours to existing parts of their daily routines. So, examples might include walks after the TV news; blood glucose tests after showering, and so on. It is generally best to have more regular contact initially with people trying to make changes (this includes emails, telephone calls etc). This is because the early success is generally imperative. It is also during this period that people make common mistakes which can lead to them discontinuing their efforts like: remembering incorrectly agreed goals and plan of action; becoming very disheartened by small or infrequent failures; boosted by early success set themselves large goals which they fail to achieve. Remember, people often try on a number of occasions to change lifestyle behaviours before they succeed (sometimes they never will), and often the fact that things remain the same is an achievement (weight for example). 1 We have copies of the HADS in the Diabetes Service. Please contact Andy Keen (email: Andrew.Keen@arh.grampian.scot.nhs.uk; telephone: 55507), consultant health psychologist, if you would like to know how to use the HADS. 58 B3.5 Smoking All people with diabetes should be strongly counselled against smoking. Smoking is a significant reversible risk factor for cardiovascular disease (macrovascular and microvascular). Patients with diabetes are already at increased risk of cardiovascular disease. Smoking increases the risk of development and progression of most complications, e.g. retinopathy, microalbuminuria. Smoking potentiates the risks during pregnancy in women with diabetes. Smoking increases the risk of developing diabetes. B3.5.1 Smoking cessation Patients who wish to stop smoking should have access to motivational support as this will increase the chances of quitting. Nicotine replacement therapy, bupropion and varenicline are effective aids to smoking cessation for patients smoking more than 5-10 cigarettes per day and who are nicotine dependent. Nicotine replacement therapy (NRT) (sublingual, chewing gum, patches, nasal spray, inhaler). The form of nicotine replacement therapy chosen should take into account clinical conditions, (e.g. pregnancy, skin disorders) individual preference and tolerance of side-effects. NRT is available from most community pharmacies conforming to a NHS pharmacy service specification, where staff have undergone training in counselling and smoking cessation support. Patients who are exempt from prescription costs receive treatment free of charge, and patients who pay prescription charges will be charged the equivalent of the prescription charge for each month of treatment. Bupropion Tablets (Zyban®) must be used in conjunction with a programme of counselling and cessation support. It should not be used in patients with a history of seizures, eating disorders, a CNS tumour or who are experiencing acute withdrawal from alcohol or benzodiazepines. Varenicline tablets (Champix®▼) must be used in conjunction with a programme of counselling and cessation support. Uptake of varenicline has been high and research demonstrates it to be very successful. There have been recent safety concerns and prescribers should be aware that symptoms of depression, which may include suicidal ideation and suicide attempt, have been reported in patients taking varenicline. Counselling and smoking cessation support is available through the NHS Grampian Smoking Advice Service (SAS). The SAS can be contacted, free of charge, on 0500 600 332. Our web address is http://www.nhsgrampian.org. Professionals wishing to find out more about the SAS may wish to log onto our section on Hi-net at http://www.hi-netgrampian.org 59 A GP Decision Flow Chart and referral information is available at: http://cgi.grampian.scot.nhs.uk/ Other Support Available: Patients can access support by calling Smokeline (provided on behalf of HealthScotland) 0800 84 84 84. The Health Scotland “Can Stop Smoking” website offers advice and e-mail and text message support. It can be accessed at http://www.canstopsmoking.com/home.htm B3.6 Travel It has become increasingly easy in recent years to travel all over the world offering exciting opportunities to many. For most patients diabetes mellitus should not be a bar to travel but certain factors have to be taken into consideration to ensure a healthy, hassle free trip. General Advice Those on tablets or insulin should pack extra snacks in case of delays in travel arrangements. Additional supplies of medication should be taken in case of delay etc. Hot / cold climates may affect blood glucose control and additional blood glucose monitoring may be appropriate. Diet may be very different in some countries – particularly in the type and quantity of carbohydrate. It is not necessary to order special diabetic meals for flights. The diabetic meals provided by the airlines do not contain enough carbohydrate. The water in many countries is not safe to drink so food and water hygiene are very important as illnesses causing diarrhoea and vomiting may have a serious adverse effect on diabetes control and may precipitate the need for urgent medical review or even hospital admission. It is important to protect the feet from sunburn. Footwear should be worn at all times including on the beach to avoid injury to the foot and the risk of infection. It is useful to carry some kind of information stating that you have diabetes mellitus and are on medication, especially if travelling alone. Various items are available such as cards or bracelets. Patients on long-haul flights should be given advice concerning minimising the risk of DVT. Accidents and ill health can occur to any traveller and good travel insurance with repatriation cover if necessary should be taken out by all. The European Health Insurance card (EHIC) does not cover repatriation to the UK only medical costs incurred in countries in the EU. Diabetes UK can be helpful in this regard as can companies such as SAGA and Freespirit. 60 Specific advice for insulin-treated patients Hot climates can affect insulin absorption and activity levels and diet on holiday often differ from that at home so doses may have to be altered. Therefore it is advisable to test blood glucose more frequently on holiday to keep good control and avoid unexpected hypoglycaemia (please check link. Any illness acquired while travelling could precipitate ketoacidosis. Ketostix should be taken on holiday so that urine can be tested for ketones if these illnesses arise. Insulin adjustment may be required for long haul flights. For some the use of a short acting insulin before meals while travelling may be added to the normal regimen. Insulin should not be stored in the hold as it can freeze, thereby making it less effective. It should be carried in hand luggage. For those travelling to very cold climates, special storage bags are available to insulate the insulin so that it does not freeze. These are available from companies such as Diabetes UK and Frio. High temperatures can also affect insulin and again storage bags can help to protect it but insulin will keep well at room temperature for periods of up to one month. A letter from a doctor for those on insulin should be carried to avoid any problems with customs at airports both here and abroad. These are available from the diabetic clinic for those who attend Woolmanhill or from GPs. A useful check list for holiday packing can be found in the Diabetes UK booklet on travel. Additional information can be found on the following websites: http://www.travax.scot.nhs.uk (for health professionals) http://fitfortravel.scot.nhs.uk (for patients) 61 B4.0 Information Technology B4.1 National and Regional Diabetes IT Overview B4.1.1 SCI-DC – Introduction SCI-DC (Scottish Care Information – Diabetes Collaboration) is a national system that allows access to data regarding all people with diabetes in NHS Grampian. It aims to deliver an integrated diabetes record to diabetes health care providers in NHS Scotland. This was set up in the basis of the recommendations in the ‘Scottish Diabetes Framework’; which identified that well-managed, integrated diabetes care must be underpinned by effective information technology systems. The principal aim of SCI-DC is to deliver a shared electronic record for use by all involved in the provision of diabetes care. SCI-DC brings support information and clinical data together from a variety of sources including general practice, hospital clinics and retinal screening. The SCI-DC project comprises of two key products, namely SCI-DC Clinical and SCI-DC Network. The SCI-DC products are complimentary, each with a different focus. SCI-DC Clinical is designed to provide hospital clinic-based support, delivering such features as the automatic generation of GP letters. An interface has been developed to take the clinical data captured by SCI-DC Clinical for automatic update of the patient record held on SCI-DC Network. SCI-DC Network allows for the identification of all people with recorded diagnoses of diabetes in the General Practice computer systems, and provides full support for the Scottish Diabetes Survey. Its regionally customisable web pages allow access to standardised treatment guidelines for decision support, and provide access to patient leaflets. The SCI-DC Network website is available to all General Practices regardless of what GP system an individual practice uses and SCI-DC holds a diabetes register of patients for all practices. SCI-DC Network allows for automated practice audit in support of clinical governance, and contains such features as graphical representation of laboratory results over time, allowing for longitudinal risk to be gauged and providing a focus for discussion with patients. In Grampian all practices have access to the system. In Grampian the Diabetes Centre uses PROTOS at present as the IT system. 62 Primary Care SCI-Store Secondary care GP systems HbA1c, Renal Function, Lipid profile, etc. SCI-DC Clinical* (GPASS,VISION, EMIS etc) Foot Screening Weight Height Medication Smoking Status Vascular co-morbidity Patients coded as having Diabetes in GP register Added to diabetes register Identifies patients for Retinal Screening SCI-DC Data store SCI-DC Network Sorian National Retinal Screening system Direct data entry DSN Retinal Screening Results Podiatry •In Grampian the Diabetes Centre uses PROTOS at present as the IT system, which does not interface with SCI-DC, but there are plans to upgrade to SCIClinical. Clinical Review Figure 1 – Diagram of SCI-DC linkages with other systems B4.1.2 Accessing SCI-DC Network The address for accessing SCI-DC is: https://ctc6.tayside.scot.nhs.uk/scidc/ Access to SCI-DC is available to registered users from within NHS computer networks. You can access SCI-DC Network through the GP Portal (see figure 2) from the Grampian Intranet pages. 63 Click here Figure 2 – Accessing SCI-DC Network through the GP Portal In order to gain access to the information contained within SCI-DC Network you must enter your username and password from the login page (see figure 3). 64 Figure 3 – SCI-DC Network Login Page Once you have successfully logged into SCI-DC, the screens you will be presented with will vary slightly depending on whether you are working in primary or secondary care (see figure 4). 65 PRACTICE NAME Dr James, GP Figure 4 – SCI-DC Primary Care Page B4.1.3 SCI-DC Network - Overview From this screen you can access a range of further screens that allow you to both enter and view information on individual patients from the practice overview screens such as biochemistry, cardiovascular and lifestyle data (HbA1c, cholesterol, blood pressure, height, weight and BMI for instance). You can also access and print off relevant leaflets, such as foot screening leaflets, from the individual patient summary screen (see figure 5). Shown below is snapshot of the foot screening form that can be accessed through the patient summary form. 66 Click on the appropriate form and print as required Figure 5 – Foot Screening Leaflet Screen In SCI-DC Network you can also enter and view foot screening data and view results and images obtained from Diabetes Retinal Screening (see figure 6). 67 PRACTICE NAME Dr James, GP Click here to access Diabetes Retinal Screening pages Figure 6 – Accessing Diabetes Retinal Screening Results Furthermore, if you work in primary care, you are also able to perform practice audits in a range of areas that allow you view patients with certain readings, patients with deteriorating readings or patients who have not had certain tests carried out or results recorded (see figure 7). In addition you are also able to view summary information in a range of areas for your own practice and compare this with regional figures for NHS Grampian as a whole. 68 Figure 7 – Performing a General Audit Using SCI-DC B4.1.4 SCI-DC – Help / Contacts Should you require a user name and password for SCI-DC Network, forget your username or password, require additional training or have any other query please use the numbers or email below as a contact. There is a SCInetwork user guide that can be e-mailed to assist you. Contact Names Robert O’Donnell Diabetes MCN Support Officer Diabetes Centre Woolmanhill Hospital Frances Philip MCN Administrator Diabetes Centre Woolmanhill Hospital t: 01224 555379 e: rodonnell@nhs.net t: 01224 555379 e: frances.philip@nhs.net 69 Useful Links The following websites provide a mixture of local and national information and are suitable for all with an interest in diabetes and diabetes care. Grampian Diabetes Centre – this website provides a range of information about services in NHS Grampian and contains lots of useful information for both patients and those involved in patient care. http://www.diabetes.nhsgrampian.org My Diabetes My Way – this website is designed to help support people who have diabetes as well as their family and friends and provides a host of resources with regards to all aspects of diabetes. http://www.mydiabetesmyway.org.uk/ Diabetes UK – this website provides information guides for people with diabetes as well as extensive information about research into diabetes and fundraising activities. The website also provides local and national information and information about professional conferences and diabetes campaigns. http://diabetes.org.uk Active Scotland – this website allows you to enter your postcode and see what activities are available in your local area, from the easy to the extreme, to help people lead a more active lifestyle. http://www.activescotland.org.uk/ 70 B5.0 Contraception, Pregnancy and the Management of Gestational Diabetes Mellitus Patient information websites The national website http://www.mydiabetesmyway.scot.nhs.uk allows access to a range of information for people with diabetes who are pregnant or who are planning pregnancy. The “My Body” section has a link to general pregnancy leaflets and a DVD. Hard copies of the leaflets and DVD are available form combined clinics in Aberdeen and Elgin. Other locally produced leaflets on are available on the following MCN website: http://www.diabetes.nhsgrampian.org/ Type 1 Diabetes is one of the most common medical conditions during pregnancy and increasing numbers of women with Type 2 diabetes are having pregnancies. Thus discussion o contraception and pre pregnancy care is important for all women with diabetes during their childbearing years. Successful outcome of pregnancy can usually be anticipated in women with pre-existing diabetes. However, diabetic pregnancy is statistically a high-risk pregnancy with regard to fetal morbidity and mortality. In order to achieve an optimal fetal outcome major efforts and attention to detail are required on the part of the patient and her carers. Meticulous blood glucose control before and during pregnancy is the cornerstone of management. In addition to metabolic supervision, mothers require close clinical surveillance since there are increased risks with regard to progression of diabetic retinopathy and nephropathy, pregnancy induced hypertension and intrapartum complications. The congenital abnormality rate in diabetic pregnancy is at least double that of the background population, and there is convincing evidence that this relates to glycaemic control at or shortly after conception during the period of organogenesis. This stage is often complete before the mother realises that she is pregnant. For these reasons diabetic pregnancy should always be planned and reliable contraception is therefore important. B5.1 Contraception The importance of avoiding unplanned pregnancy should be an essential component of diabetes education for young women with pre existing diabetes from adolescence. The failure rate of the condom is relatively high, however 71 many of the other methods of contraception are safe for use by the majority of people who have diabetes. For all those recently diagnosed as having diabetes mellitus all methods are suitable provided there are no other medical reasons why a particular method is unsuitable. For those who have vascular complications such as diabetic eye disease or kidney problems the combined oral contraceptive pill may be contraindicated and most other methods would be suitable. Advice has to be tailored to each individual depending on the presence of complications and other medical problems. Expert advice is available at the diabetic clinic or at Square 13, Centre for Family planning and Reproductive health Care, 13, Golden Square, Aberdeen. Contraceptives available are: Contraceptive Combined contraceptive pill (COC) – Depo Provera Injection Implanon subcutaneous implant Progesterone only pill (POP) Intrauterine system or Mirena Intrauterine device (IUD) Sterilisation Vasectomy Condom Persona Diaphragm or Cap Natural family planning methods Failure Rate 0.3% 0.3% almost 0% 1 to 2% <1% <1% 1 in 200 and gets worse over time 1 in 2000 2 to 15% 6% at best 2 to 12% Can be around 25% if not followed every day and requires a high degree of motivation Long acting methods such as the IUD, IUS, and Implanon are best as they require no further thought once fitted until they need replaced. Emergency contraception - failure rate of around 5% mid-cycle, 2% over the whole cycle. Need to obtain it within 72hrs of risk episode and the sooner it is taken the more effective it is. The copper IUD can be inserted as an emergency contraceptive up to 5 days after a risk episode and is nearly 100% effective but due to other considerations such as the risk of infection is not first choice. Other tablet methods are used on a trial basis under license from the Scottish Office and are available up to 5 days after the risk episode from Square Thirteen in Golden Square. B5.2 Planning pregnancy Prior to conception Refer to a hospital or combined obstetric diabetic clinic for pre pregnancy assessment, where the following steps are taken: 72 Review insulin regimen. For intensive blood glucose control most women are best treated with a multiple injection regimen. Provide blood glucose meter and test blood glucose four to six times daily Blood glucose targets should be individualised and will depend on factors such as hypoglycaemia unawareness or the residual maternal beta cell function. General targets are fasting and pre meal 4.0-5.5 mmol/l, two hour post prandial <7.0 mmol/l for women with Type 1 Diabetes. NICE recommends 3.5-5.9 mmol/l fasting, one hour post prandial below 7.8mmol/l during pregnancy and these levels may be possible in eg Type 2 Diabetes treated by diet and and a small dose of metformin. Achieve optimal glycaemic control aiming for an HbA1c result within or as near to the non-diabetic range as is possible without inducing disabling hypoglycaemia A general target for HbA1c of <7% is advised for women with Type 1 diabetes although the ideal target is quoted in NICE is < 6.1%. This lower value may be feasible in patients with Type 2 diabetes but cannot be achieved in many women with Type 1 diabetes because of the risk of severe hypoglycaemia. Patients with Type 2 diabetes should be considered for insulin therapy with treatment targets as above. Women with pre existing diabetes may use metformin as an adjunct or alternative to insulin in the preconception period and during pregnancy when the likely benefits from improved glycaemic control outweigh the potential for harm. All other oral hypoglycaemics should be discontinued before pregnancy and insulin substituted. Discuss lifestyle issues which may affect glycaemic control, e.g. o Difficulty with shift work o Encourage appropriate exercise Review all medications and other potential teratogens. ACE inhibitors and ARBs should be discontinued before pregnancy or as soon as pregnancy is confirmed . alternative antihypertensive agents suitable for use during pregnancy, eg methyl dopa, should be substituted. Arrange dietetic review and reinforce antismoking advice Commence folic acid 5mg daily. (High dose recommended in view of high risk of neural tube defects) Ensure complication screening is complete and take action as appropriate – See 10.2 -Content of Annual checks Check rubella status Assess general health, fitness for pregnancy, and screen for factorswhich could disturb glycaemic control, e.g. urinary infection and thyroid status Review menstrual and gynaecological factors which could impair fertility An intensive education update to self management should be offered. If available,a place on a structured education programme prior to pregnancy provides this level of education. 73 B5.3 Confirmed pregnancy All diabetic women in whom pregnancy has been confirmed should be referred immediately by telephone or fax to a hospital combined obstetric / diabetic clinic for intensive education and multidisciplinary supervision. Clinics are held weekly in Aberdeen and Elgin, where women will be seen at one to four weekly intervals depending on metabolic control and obstetric progress. Admission is not routine but may be recommended for stabilisation of blood glucose control, management of diabetic complications or associated obstetric problems. There is a low threshold for admission in these high-risk pregnancies. Hypoglycaemia (see section C4.0) Strict blood glucose control increases the risk of hypoglycaemia and warning signs are often lost in early pregnancy. All women should be provided with Glucogel and a glucagon emergency kit, and their partner should be instructed in their use. Ideally women should not sleep in a house alone in early pregnancy because of the risk of hypoglycaemia. Women who lose awareness of hypoglycaemia in pregnancy should be advised to stop driving until warning symptoms return to normal. Ketosis The fetus tolerates hypoglycaemia well, but is very sensitive to ketosis. Established ketoacidosis in pregnancy results in a very high incidence of fetal loss at all gestations, and is usually potentially avoidable. Pregnant women should all have facilities to check blood or urine for ketones. Elevation of blood glucose (> 10mmol/l) together with persistent non fasting ketonuria is an indication for increased insulin doses and urgent further assessment usually involving hospital admission for intravenous insulin and dextrose. Women must be advised to contact either their DSN, hospital team or GP in such circumstances without delay. The most common cause of ketosis in pregnancy is urinary tract infection, which should be treated on a presumptive basis. Delivery Women should be delivered where there are facilities for intensive neo-natal care. Ideally should be vaginal and at term (but not beyond). An individual decision will be made for each patient, and in practice the caesarean section rate remains much higher than that of the non-diabetic population (around 67%). All women on insulin receive an infusion of dextrose and insulin during labour to maintain normoglycaemia. Post partum insulin requirements usually fall to between 30% and 50% of that immediately prior to delivery. Breast-feeding is encouraged. Link to leaflet on Breast feeding and diabetes 74 B5.4 Management of Gestational Diabetes Background and definition Gestational diabetes mellitus (GDM) has been defined as carbohydrate intolerance of variable severity with onset or first recognition during pregnancy. During pregnancy the normal range for fasting blood glucose is much lower than in non-pregnant women and glycosuria with normal blood glucose levels is common due to a lowering of the renal threshold for glucose. The optimal methods to screen for, diagnose and treat GDM are under review. The National Screening Committee is considering screening for GDM. NICE guidelines recommend use of risk factors for screening and SIGN, which currently recommend the process below (SIGN 55), are to consider the topic as part of an updated guideline. Important trials are also due for publication and, in the meantime, Grampian guidelines for screening, diagnosis and treatment are unchanged until the Scottish national guideline is updated. Women with a history of gestational diabetes, who have not progressed to diabetes in the interim, should have an OGTT around 16-18 weeks during subsequent pregnancies. Recommended population screening protocol for gestational diabetes mellitus Diagnosis The criteria for the diagnosis of gestational diabetes are recommended as Venous plasma glucose on 75g OGTT Fasting > 5.5 mmol/l OR 2 hour value > 9.0 mmol/l 75 Management Women diagnosed as having gestational diabetes should be seen by a physician and obstetrician with a special interest in diabetes and should receive intensive management with diet and/or insulin if macrosomia is suspected or if blood glucose levels are in the range for established diabetes. Post-natal follow up Up to 50% of women may go on to develop Type 2 diabetes later in life and this group presents an excellent opportunity for screening and intervention. Studies have shown that lifestyle intervention can reduce the incidence of diabetes in at risk patients by over 50%. A local patient leaflet explaining this risk and measures to reduce the risk of diabetes is available on the MCN website. Link to leaflet on advice to reduce DM in women with GDM. All patients with gestational diabetes are invited for a glucose tolerance test at 6 months after delivery. Women with a history of gestational diabetes who have developed IGT, IFG or DM should be referred to the pre-pregnancy clinic or to the Combined Obstetric Diabetic clinic when pregnancy is confirmed. Some women will need active management from early pregnancy. 76 B5.4.1 Follow up of Patients with Previous Gestational Diabetes 77 B6.0 Children’s Services There are services available for children and adolescents across Grampian based at RACH, Dr Gray’s Hospital and Woolmanhill. Any child up to the age of 14 with suspected diabetes should be referred the same day to the receiving Paediatric Medical team at either RACH or Dr Gray’s Hospital. Older children and adolescents should be referred to adult services. Local guidelines for the management of children with diabetes can be accessed via the Grampian diabetes website at: ..\..\..\..\Website\MANGEMENT OF DIABETIC CHILDREN IN RACHvmar06_final[1].doc Further information about the service and the children’s team can also be obtained from: http://www.diabetes-scotland.org/grampian/home.html 78 Section C: Glycaemic Control C1.0 Targets for Glycaemic Control ....................................................... 81 C1.1 Glycosylated haemoglobin ........................................................ 81 C1.2 Conversion Table for HbA1c % to mmol/mol ............................ 82 C2.0 Monitoring ........................................................................................ 83 C2.1 Patients with Type 2 Diabetes controlled by diet or oral medication ................................................................................ 83 C2.2 Patients with Insulin-treated Diabetes ....................................... 84 C2.3 Adjustment of insulin dose ........................................................ 85 C2.4 Ketone testing in insulin-treated patients .................................. 85 C2.4.1 Management of results: ................................................ 85 C2.5 NHS Grampian recommended blood glucose meters/lancers/lancets.............................................................. 87 C3.0 Hypoglycaemic Drug Therapy ........................................................ 89 C3.1 Oral hypoglycaemic drugs ........................................................ 90 C3.1.1 28 day OHA treatment costs ....................................... 101 C3.2 NICE guidance on treatment of Type 2 diabetes .................... 102 C3.3 Insulin regimens....................................................................... 103 C3.4 Types of Insulin ....................................................................... 104 C3.4.1 Insulin costs ................................................................ 107 C4.0 Hypoglyaemia ................................................................................ 108 C4.1 Causes of hypoglycaemia ....................................................... 108 C4.2 Symptoms of hypoglycaemia .................................................. 108 C4.3 Hypoglycaemia unawareness ................................................. 109 C4.4 Treatment of hypoglycaemia ................................................... 109 C4.5 Hypoglycaemia and sulphonylureas ....................................... 110 C4.6 Nocturnal hypoglycaemia ........................................................ 110 C4.7 Rebound Hyperglycaemia ....................................................... 111 C4.8 Avoidance of hypoglycaemia .................................................. 111 C4.9 Driving and hypoglycaemia ..................................................... 111 C4.10 Exercise related hypoglycaemia ........................................... 112 C5.0 Management of Diabetic Emergencies in the Community ......... 113 C6.0 Management of Diabetes in Hospital ........................................... 115 C6.1 Introduction ............................................................................. 115 C6.2 Diabetic emergencies ............................................................ 117 C6.2.1. Diabetic Keto Acidosis (DKA)..................................... 117 C6.2.2 Hyperosmolar Non Ketotic Hyperglycaemia (HONK) .. 118 C6.2.3 Hypoglycaemia in hospital .......................................... 118 C6.2.4 Prevention of Hypoglycaemia during Hospital Admission .................................................................................... 120 79 C6.3 Management of Diabetes during intercurrent illness ............... 121 C6.3.1 Type 1 diabetes .......................................................... 121 C6.3.2 Type 2 diabetes .......................................................... 121 C6.3.3 Variable rate intravenous insulin infusion .................... 121 C6.4 Guidelines for diabetes management during procedures requiring fasting ...................................................................... 125 80 C1.0 Targets for Glycaemic Control Epidemiological studies show that the risks of arterial disease and micro vascular complications in people with diabetes are related to the extent of hyperglycaemia. The Diabetes Control and Complication Trial (DCCT) and UK Prospective Diabetes Study (UKPDS) have shown that optimal blood glucose control in the early years after diagnosis substantially reduces the risk of development and progression of complications in people with diabetes. The overall goal should therefore be the optimisation of blood glucose without undue hypoglycaemia. The extent to which this is pursued by the individual patient will depend on motivation, practical aspects of diabetes management (e.g. insulin delivery and self-monitoring), risks related to hypoglycaemia and concomitant co-morbidity. Long term outcome studies are not available for some of the newer therapeutic agents and their long term benefits are uncertain. C1.1 Glycosylated haemoglobin Overall glycaemic control is best measured by HbA1c, which provides an index of the average blood glucose concentration over the preceding two months. Reference ranges for HbA1c vary according to method of assay. From June 2009 HbA1c assays will be standardised and reported in mmol/mol as well as %. Dual reporting in both units will continue for around 2 years to allow the diabetes community and others to adapt to the new units. Educational leaflets for patients, lab staff and clinical staff are available at www.Diabetesinscotland.org.uk. The range for HbA1c in people who do not have diabetes is up to 6% (42 mmol/mol). The DCCT and UKPDS intensively treated groups achieved HbA1c levels of 7% (53 mmol/mol) but this may not be achievable without undue adverse effects. Any reduction of elevated glycosylated haemoglobin will produce a significant reduction in microvascular complication risk. To achieve optimal HbA1c levels the following blood glucose targets are likely to be required: • Fasting plasma glucose in Type 2 patients ≤ 5.9 mmol/l • Preprandial blood glucose 4-7 mmol/l • 2 hours postprandial blood glucose 7-9 mmol/l A single target figure may be unhelpful as this may vary between individuals depending on the: Quality of life that would have to be sacrificed to reach that target. Extent of side effects Resources available for management 81 In order to set realistic targets that patients can relate to and are motivated to achieve people with diabetes should be: Involved in decisions as to their individual HbA1c level, which may be above or below that set for the general population of people with diabetes Offered therapy (lifestyle and medication) to assist in achieving and maintaining their HbA1c target Informed that any reduction in HbA1c towards the agreed target is advantageous to future health In conclusion patients with diabetes should be encouraged to maintain an HbA1c less than 7% (53 mmol/mol) unless the resulting side effects of their efforts in achieving this significantly impair their quality of life. Some recent publications indicate a lack of benefit from very tight glucose control especially in older patients with longer duration of diabetes. Further guidance on this topic and the value of newer agents should be available from the selective SIGN update due for publication in 2010. C1.2 Conversion Table for HbA1c % to mmol/mol % 4.0 5.0 6.0 6.5 7.0 7.5 8.0 9.0 10.0 mmol/mol 20 31 42 48 53 59 64 75 86 Information for patients and for healthcare professionals can be found on the following webpages: Information for patients http://www.diabetes.org.uk/upload/Professionals/Key%20leaflets/53130%20H bA1c%20PWD%20leaflet.pdf Information for healthcare professionals http://www.diabetes.org.uk/upload/Professionals/Key%20leaflets/53130%20H bA1c%20HCP%20leaflet.pdf 82 C2.0 Monitoring Self Monitoring of blood glucose (SMBG) has an important role in the management of some individuals with diabetes. It should certainly not be seen as essential for everyone with diabetes. The evidence of value in improving HbA1c patients is limited http://nhshealthquality.org/evidencenote . When used inappropriately it can lead to added stress to the patient with no benefit. No matter what the type of diabetes or the treatment modality being utilised SMBG will only be of value if used by a motivated, well educated patient. It should only be initiated as part of a package of care that should include structured education. In these circumstances SMBG is an integral part of effective patient education packages and enhances the effective use of many therapies and lifestyle interventions. C2.1 Patients with Type 2 Diabetes controlled by diet or oral medication For most patients regular home blood glucose testing may not be appropriate. Patient choice and clinical need should be taken into account. When glycaemic control is stable and HbA1c on target, regular testing may not be essential but may help some patients maintain optimal control. SMBG needs to be initiated by the clinician and patient in conjunction with a structured education package and in the context of clear outcome benefits. Home blood glucose monitoring may help an individual to take control of their condition and can inform patients of the effects of eating certain foods and exercise on blood glucose. Some individuals will monitor blood glucose to empower them to make changes to lifestyle and thus improve glycaemia. How often and when should patients monitor blood glucose? When HbA1c is rising or when treatment is changing, e to insulin or when there is intentional lifestyle change, blood glucose monitoring 2-3 times per week at different times of day (e.g. fasting, 2 hours after eating) may be helpful up to a maximum of 4 tests every fourth day or one test per day. Patients should be encouraged to record and understand the results of their blood testing and take action as agreed with their diabetes team. Situations which may require more intensive blood glucose monitoring: 83 Patients should be advised to test blood glucose at least daily and possibly up to 4 times per day in the following situations: During significant illness or if ketonuria∗ present During times of psychological / emotional stress (e.g. exams, driving tests) If the patient is on sulphonylurea and is at increased risk from hypoglycaemia (e.g. taxi / lorry driver / operating heavy machinery) During pregnancy or pre-pregnancy planning To assess changes in glucose control due to medications and lifestyle changes Before / After moderate physical activity QIS Evidence note on clinical and cost-effectiveness of self-monitoring of blood glucose (SMBG) for non-sinulin treated Type 2 diabetes – see link below. ClinicalGovernance_EN26ClinicalAndCostEffectivenessOfSMBG_JAN09.pdf Blood glucose targets – these vary between individuals – (See section C1.1) ∗ Urine Ketone Testing This is not usually required in patients with Type 2 diabetes but where there is concern that the patient may have evolving Type 1 diabetes or becoming "insulin-requiring" the diabetes team may recommend urine ketone monitoring. C2.2 Patients with Insulin-treated Diabetes Patients with diabetes who utilise insulin need to practice SMBG so as to titrate insulin dose and avoid the extremes of glycaemia. By correctly interpreting SMBG and making adjustments to insulin dose and lifestyle control can be maximised and long term outcomes improved. For this to be affected then the individual with diabetes utilising insulin needs to be well educated and empowered to make changes. Home blood glucose monitoring is strongly recommended for people with insulin-treated diabetes, as it enables the individual to take control of their condition and can help highlight situational changes requiring insulin adjustment. How often should patients monitor blood glucose? A blood glucose test should only be taken if it is to be used in decision making. Monitoring should be encouraged at a frequency that is useful to the particular individual with diabetes remembering that: Frequency of monitoring will vary between patients depending on 84 lifestyle, motivation and need. Patients should be encouraged to do at least one test per day at different times or 4 times a day every 3rd or 4th days. At times some patients wishing to have greater control or flexibility may choose to test up to 4 times per day (also see below for situations where more testing may be required) When should patients test blood glucose? Recommended times of testing would be before meals (i.e. breakfast, lunch and tea), before bed and sometimes 2 hours after eating. Patients should be encouraged to keep a record of results including details such as time of day, activity and dietary intake. Situations which may require more intensive blood glucose monitoring Therapeutic change During illness or ketonuria Before /After physical activity Before driving (any distance not just long journeys) Psychological / emotional stress (e.g. exams, driving tests) Impaired hypoglycaemic awareness or recurrent hypoglycaemia. Changes in lifestyle – job / shift patterns Pregnancy or pre-pregnancy planning Using an insulin pump C2.3 Adjustment of insulin dose Individuals with diabetes should be empowered by their team of professionals to interpret the results of SMBG and be able to make changes to their insulin regime. C2.4 Ketone testing in insulin-treated patients Patients on insulin should be advised to keep an “in date” supply of ketonetesting strips. They may have access to blood ketone testing strips. If blood glucose 17 or above or during intercurrent illness (e.g. cold /flu/ UTI etc) urine should be tested for ketones. C2.4.1 Management of results: Urine Ketones: 1. If TRACE or SMALL - observe. 2. If MODERATE or LARGE – extra insulin is probably required. If blood glucose still 17 or above after 3 hours – re-test for ketones. If ketones are still present (i.e. moderate or large), further extra insulin may be required and if any uncertainty with the best course of action specialist help should be sought. 85 If blood glucose and urine/blood ketones are persistently elevated the patient is at significant risk of developing diabetic ketoacidosis and specialist advice will be required. 86 C2.5 NHS Grampian recommended blood glucose meters/lancers/lancets January 2009. Review Date 2010 DSN Group National procurement of blood glucose test strips is being undertaken by NHS Scotland at present. The cost of certain meters may be less by 2010. In NHS Grampian the meters listed above in detail are recommended for home blood glucose testing (HBG). We recommend patients should not use more than one meter for day to day testing as results can vary from meter to meter. In the interests of good practice and safety, please ensure the repeat prescription is for the correct test strip and discontinue the previous meter strips. Please ensure the patient re-codes the meter for each new batch of test strips. For specific patients there are other meters available. Patient Meter name Advantages Test strips Cost Contact 87 Type 1 Optium Xceed Checks for blood Ketones Visually Impaired SensoCard Plus Poor Dexterity Accuchek Compact plus Gives verbal commands and results Can be operated with one hand Optium Ketone test strips SensoCard plus test strips Compact Plus £18.80 / 10 £16.30 / 50 £14.59 / 51 details Abbott 0500 467466 SensoCard 01792 229333 Roche 0800 701000 Some meters accept the wrong strip and wrong readings can be given e.g. for blood glucose readings Optium Xceed. Please be aware sample size and range of readings differ with each meter. We recommend patients register their meter with the company who supplied the meter by phone or registration card. This saves you time if there is any problem with the meter or the patients technique, as the care lines will help the patients and supply replacement batteries or new meters in the event of product recall. Meters should be tested regularly using the quality control (QC) solution supplied by the company. This is available free on request, along with replacement batteries and downloads software. LANCERS For single patient use, in practices or by nursing staff in the patient’s home, the following is advised UNISTIK3 COMFORT (OWEN MUMFORD) order code FZT 069 or on FP10 for a named patient. This is a device where lancer and lancet are in one and are disposable after single use. 88 If carers’ change the patient’s personal lancet the Multiclik lancer pen supplied with the Accuchek Aviva meter is recommended as six lancets are contained in a barrel and there is reduced risk of needle stick injury to the carer. C3.0 Hypoglycaemic Drug Therapy Index: Oral Metformin Sulphonylureas Thiazolidinediones Incretin hormone therapies DPP-IV inhibitors GLP analogues Prandial glucose regulators Acarbose Insulin – see table on p 82/83 Insulin Lispro (Humalog) Insulin Aspart (Novorapid) Insulin Glulisine (Apidra) Human Actrapid Humulin S Insuman Rapid Hypurin Bovine Neutral Hypurin Porcine Neutral Human Insulatard Humulin I Insuman Basal Hypurin Bovine Isophane Hypurin Porcine Isophane Hypurin Bovine Lente Hypurin Bovine Protamine Zinc 10ml Vial Insulin Glargine (Lantus) Insulin Detemir (Levemir) Human Mixtard 30 / Actrapid / Insulatard in ratios of 30/70 Humulin, M3 Humulin S / Humulin I in ratios of 30/70 Insuman Comb 15, 25 or 50, Insuman Rapid / Basal in ratios of 15/85 to 50/50 Humalog Mix 25 or 50 Lispro/LisproProtamine in ratios of 25/75 or 50/50 Novomix 30 Aspart/Aspart Protamine in a ratio of 30/70 Hypurin Porcine 30/70 Mix 89 C3.1 Oral hypoglycaemic drugs These drugs are suitable for people with Type 2 diabetes when blood glucose control through dietary measures alone proves inadequate. Since in practice the majority of patients are overweight, metformin is usually the drug of first choice. Sulphonylureas would be the usual second choice due to cost and safety factors. Pioglitazone or DPP IV inhibitors may be an alternative in obese patients. However, recent safety concerns re: the glitazones (heart failure and reduced bone density) and the limited clinical experience with DPP IVs (as well as cost factors) place these agents as third choice for possible use as triple combination therapy (in addition to metformin and sulphonylureas), in patients who are reluctant to go on to insulin. Early sulphonylurea treatment may be appropriate in the thin symptomatic patient without ketonuria. Patients should be educated about their drugs and should carry documentation of any risk of hypoglycaemia. The risk of hypoglycaemia is present when using sulphonylureas alone or with any combination of oral agents with sulphonylureas. The new treatments for Type 2 diabetes on the market at the present time have limited long term outcome data to support them and should be used with a degree of caution. 90 Metformin Action Metformin works principally by reducing insulin resistance. Indications Primary drug treatment of overweight Type 2 diabetes. As an adjuvant to other hypoglycaemic therapy in Type 2 patients. Metformin may be continued in some obese patients with Type 2 diabetes who ultimately require insulin therapy, to maximise insulin sensitivity and minimise weight gain on insulin. Side Effects Diarrhoea, lethargy, anorexia, malabsorption of B12 and folate Lactic acidosis is a very rare but often fatal side effect. It occurs almost exclusively in alcoholics, patients with renal or severe cardiac failure, liver disease, and those who are undergoing surgery or are shocked. Caution Contraindicated in renal impairment (creatinine >150µmol/l or eGFR <30 ml/min/1.73 m2), severe liver disease and alcoholism. Discontinue temporarily during severe inter-current illness. Discontinue for 48-hours following the injection of x-ray contrast media. Dose Initially 500mg daily with or after main meal, increasing gradually in 500mg increments to a maximum of 1g tds as required for good glycaemic control. The dose is often limited by diarrhoea. Extended Release Metformin (Glucophage SR) is not recommended for the treatment of adults with type-2 diabetes. This new formulation appears to have similar short-term efficacy to immediate-release metformin. Evidence of improved gastrointestinal tolerability is not convincing and it is more expensive than the immediate-release formulation. However, it may be useful in those who are poor at remembering tablets as a once daily dose may aid compliance. Metformin is also available in combination tablets with rosiglitazone (Avandamet) and pioglitazone (Competact). The use of these tablets is not recommended unless essential to aid compliance in certain patients Metformin and intravenous contrast studies Contrast studies such as peripheral or coronary angiography and CT head scan with iv contrast, are associated with a small risk of acute renal failure that could result in the development of lactic acidosis in patients on Metformin therapy. Therefore, Metformin should be discontinued after such contrast studies for 48 hours or until renal function returns to normal. It is essential that the Radiology Department is aware of Metformin therapy and current 91 eGFR in advance. In patients with significant renal impairment, (eGFR <50) ensure adequate hydration (eg normal saline 100 ml/hr 4 hours before and 24 hours afterwards) and discontinue any potential nephrotoxic drugs such as ACE inhibitor for 24-48 hours after the procedure. 92 Sulphonylureas Action Potentiates the pancreatic β cell insulin release in response to glucose. Indications Primary drug treatment of non-obese patients with Type 2 diabetes. Primary drug treatment of overweight Type 2 patients unable to take usual first line agents. As adjuvant therapy with other agents. Side Effects Hypoglycaemia, weight gain, Other side effects are rare. Drugs The three most commonly used sulphonylureas in Grampian are Gliclazide, Glipizide and Glimepiride, the last having the advantage of a once daily single tablet dose. Gliclazide is also available in a once daily dosage version which may aid compliance in some patients. Chlorpropamide and Glibenclamide are particularly prone to cause hypoglycaemia and should not be initiated, and their continued use should be reviewed periodically. Doses It is usually appropriate to start with a small dose before breakfast, increasing progressively according to blood glucose response. The drug should always be taken before meals, ideally 20 to 30 minutes before eating. Gliclazide 40-320mg daily (doses > 160mg should be divided). Also available as a 30mg modified release tablet (equivalent to 80 mg of standard preparation) – to achieve maximum dose range (120mg), patient required to ingest up to 4 tablets before breakfast. Glimepiride 1-6 mg as a single daily dose. Glipizide 2.5-20 mg (doses >10 mg should be divided). Maximum daily dose 10mg twice daily. 93 Thiazolidinediones Action: Group of agents acting at the level of the PPAR-gamma receptor to promote insulin sensitivity. To be effective, patients require to have sufficient endogenous insulin production. The maximum therapeutic benefit may not be apparent until after eight weeks. Rosiglitazone and pioglitazone are both used to treat adult patients who have Type 2 diabetes, particularly in those who are overweight. Pioglitazone, but not rosiglitazone can also be used in combination with insulin. Contra-indicated in patients with left ventricular impairment, heart failure or high risk of fractures. Warn a person prescribed a thiazolidinedione about the possibility of significant oedema and consider alternatives if this develops. In addition Rosiglitazone is contra-indicatedin patients with Ischaemic Heart Disease or Peripheral Vascular disease. Indications Thiazolidinediones can be used as monotherapy although Metformin is the drug of first choice Thiazolidinediones may be added to the combination of metformin and a sulfonylurea where insulin would otherwise be considered but is likely to be unacceptable or of reduced effectiveness because of employment, social or recreational issues related to putative hypoglycaemia – barriers arising from injection therapy or other personal issues such as adverse experience of insulin in others – those likely to need higher insulin doses or with barriers to insulin arising from particular concerns over weight gain (namely those with obesity or abdominal adiposity) a sulfonylurea if metformin is not tolerated metformin as an alternative to a sulfonylurea where the person’s job or other issues make the risk of hypoglycaemia with sulfonylureas particularly significant. Side-effects Significant weight gain and fluid retention. Both agents associated with loss of bone mass and are associated with significantly higher risk of distal fractures in women. Caution Avoid in hepatic impairment – Do not initiate if AAT≥ 2.5 x upper normal limit and therefore worth checking LFT’s before initiating therapy and as BNF states “periodically” thereafter. Liver toxicity is however rare. If AAT is ≥ 3x upper normal limit, therapy should be discontinued. 94 Dose Pioglitazone (Actos) - 15-45mg once daily. Pioglitazone 15mg is available in combination with Metformin 850mg (Competact) and can be used as 1 tablet twice daily. All patients on Rosiglitazone should be reviewed and their requirements for the drug be assessed. In view of recent advice regarding avoidance of Rosiglitazone in patients with ischaemic heart disease and peripheral vascular disease, clinicians need to be confident of the absence of these before commencement and review regularly the appropriateness of continual therapy in suspected IHD or PVD. Pioglitazone would be an alternative agent or a DPP IV may also be considered. It may also be appropriate to consider insulin therapy at this stage. 95 Incretin hormone therapies Incretin hormones [eg, glucagon-like peptide-1 (GLP-1) and glucosedependent insulinotropic polypeptide (GIP)] regulate glucose homeostasis by increasing insulin synthesis and release from pancreatic beta cells and decreasing glucagon secretion from pancreatic alpha cells. Decreased glucagon secretion results in decreased hepatic glucose production. Under normal physiologic circumstances, incretin hormones are released by the intestine throughout the day and levels are increased in response to a meal; incretin hormones are rapidly inactivated by the DPP-IV enzyme. GLP-1-based therapies affect glucose control through several mechanisms, including slowed gastric emptying, regulation of postprandial glucagon, reduction of food intake, and enhancement of glucose-dependent insulin secretion. These agents do not cause hypoglycaemia, in the absence of therapies that otherwise cause hypoglycaemia 96 DPP-IV Inhibitors Dipeptidyl peptidase IV (DPP-IV) Is a ubiquitous enzyme that deactivates a variety of other bioactive peptides, including GIP and GLP-1; therefore, its inhibition could potentially affect glucose regulation through multiple effects. There are several agents being studied. Sitagliptin and Vildagliptin are licensed for use in the UK and others are in development. Sitagliptin is on the Grampian Formulary. Action: Inhibits dipeptidyl peptidase IV (DPP-IV) enzyme resulting in prolonged active incretin levels. Indications: 1. May be used in combination with metformin when diet and exercise, plus metformin, do not provide adequate glycaemic control. It should be restricted to use in patients only when the addition of sulphonylureas is not appropriate. 2. In combination with thiazolidinediones or sulphonylurea when diet and exercise and maximum tolerated dose do not prove adequate and metformin contraindicated or not tolerated. 3. Sitagliptin only is licensed for triple therapy in combination with Metformin and sulphonylurea when dual therapy is inadequate to maintain glycaemia control (as an alternative to other agents such as thiazolidinediones) Efficacy: As assessed by measurement of HbA1c, is similar to sulphonylurea and thiazolidinedione drugs added at this stage in therapy. It appears to have minimal effects on body weight. Cautions: Both agents are not recommended in patients with moderate to severe renal failure (GFR <50ml/min). Not recommended in severe hepatic failure. Additional cautions for Vildagliptin: Not recommended in hepatic impairement, including patients with ALT >3x upper limit of normal. It is recommended that LFTs are monitored three monthly in the first year and periodically thereafter. Not recommended in patients with moderate cardiac failure (NYHA class III-IV). Due to rare reports of skin lesions in animal studies, monitoring of skin disorders such as blistering or ulceration is recommended. Side effects: Seems to be well tolerated with minor headaches and nausea in <5%. Hypoglycaemia risk is minimal with Metformin but significant when used with sulphonylurea. 97 GLP-1 Analogues: Exenatide Action: Exenatide is an analogue of the hormone incretin (glucagon-like peptide 1 or GLP-1) which increases insulin secretion, increases B-cell growth/replication, slows gastric emptying, and may decrease food intake Indications: In combination with metformin and/or sulphonylureas in patients who have not achieved adequate glycaemic control on maximally tolerated doses of these oral therapies. It is considered as a third hypoglycaemic agent e.g. where a history of significant cardiac problems, or a fear of adverse cardiac risks, mitigates against use of other agents. These are injectable agents and would be considered at the point where insulin therapy would be suitable in selected individuals who have a BMI >35 and there are specific psychological, biochemical or physical problems due to the high weight. Continue exenatide therapy only if a beneficial metabolic response (at least 1.0 % HbA1c reduction in 6 months and a weight loss of at least 5% at 1 year) occurs and is maintained. Side effects: Hypoglycemia (with concurrent sulfonylurea therapy 14% to 36%; frequency similar to placebo with metformin therapy). Check Driving section for driving guidelines. Significant Nausea 40% - may be dose-related and may decrease in frequency/severity with gradual titration and continued use. 2 Contraindicated in severe renal failure (eGFR <30 ml/min/1.73 m ) Dose: Initial: 5 mcg subcutaneous injections twice daily within 60 minutes before main meals at least 6 hour apart; after 1 month, may be increased to 10 mcg twice daily as a maximum 98 Prandial glucose regulators Action: These agents act as insulin ecretagogues, potentiating the post-prandial secretion of insulin that is impaired in the Type 2 diabetes. May be considered rarely for people with non-routine daily lifestyle patterns (creating difficulty with sulphonylureas) to assist in attaining glucose control to their individual target. Indications: Repaglinide – As monotherapy or in combination with metformin `Nateglinide – In combination with metfomin Side effects Both agents can precipitate hypoglycaemia Caution Avoid in severe hepatic impairment Dose Repaglinide (Novonorm) -initially 500mcg within 30 minutes before main meals (1mg if transferring from another oral hypoglycaemic), adjusted according to response at 1-2 week intervals. Up to 4 mg as single dose; max daily dose 16mg. Nateglinide (Starlix) - initially 60 mg 3 times daily within 30 minutes before main meals; adjust according to response to maximum 180mg 3 times daily. Acarbose Action An alpha-glucosidase inhibitor which acts within the gut to slow digestion and absorption of carbohydrates. Indications Primary drug treatment of patients with Type 2 diabetes (especially the obese) if other drugs are contraindicated. As an adjuvant to other oral agents or insulin. Side effects Flatulence and GI disturbance. As mono therapy it does not cause hypoglycaemia. Caution Insulin or sulphonylurea induced hypoglycaemia in patients taking acarbose must be treated with glucose (dextrose) 99 Dose 25-50mg daily increased very gradually to 50-100mg tds according to tolerance. 100 C3.1.1 28 day OHA treatment costs 28 Day Treatment Costs (MIMS January 2009, Scottish Drug Tariff April 2009) 40 35 30 20 15 10 5 od g 10 0 tin Si ta gl ip zo R os ig l ita az gl it Pi o m g 15 m ne on e 30 60 m R M e lic la zi d G od od m g od g od g 2m e ep iri d G lim et fo M lic la zi d e rm in 80 m 1g g bd bd 0 G £ 25 101 C3.2 NICE guidance on treatment of Type 2 diabetes http://www.nice.org.uk/CG66/NiceGuidance/pdf/English A treatment protocol developed in Spring 2008 for management of Type 2 diabetes: 102 C3.3 Insulin regimens Initiation of insulin Patients with Type I diabetes are normally commenced on human insulin or an insulin analogue, in either a twice daily or a multiple injection regimen. The choice of the initial regimen and subsequent modifications should be made in consultation with the patient, taking due regard of the patient’s occupation and lifestyle. The precise insulin formulation may be determined by the patient’s preferred insulin delivery device. Most patients prefer to use pen devices. Patients with Type 2 diabetes may need insulin when oral agents are insufficient to achieve satisfactory glycaemic control due to progressive beta cell failure. It is expected that almost 50% of patients with Type 2 diabetes will eventually require insulin and patients should be counselled about this early in their management. Once daily injections Single daily injections do not usually result in good glycaemic control, and are relatively rarely used. Such a regimen may be appropriate for patients where the therapeutic goal is only to prevent ketosis or suppress symptomatic hyperglycaemia, and where there are practical problems with insulin delivery, or particular concern over the risks of nocturnal hypoglycaemia. Elderly patients living alone and patients requiring injections to be given by a community nurse may fall into this category. Long acting basal analogue insulins (Insulin Glargine and Levemir) These may be used in addition to oral hypoglycaemic agents in type II diabetics when oral agents are inadequate to achieve satisfactory glycaemic control. Patients and carers should recognise that if good glycaemic control is needed most cases will eventually need to move onto a more frequent injection regime. Twice daily injections This is a commonly used regimen, and suitable for patients starting on insulin. A combination of short and intermediate acting insulins is taken before breakfast and before the evening meal. Multiple injections This arrangement, involving up to 4 injections a day, has the main advantage of increased flexibility with regard to exercise, meal timing and meal size. It is most likely to work effectively in a well-motivated patient, prepared to do regular and frequent blood glucose testing The majority uses an insulin analogue or soluble insulin before each meal, and an injection of an intermediate, or long acting insulin usually before tea or bedtime to provide background cover. 103 Continuous subcutaneous insulin infusion (Insulin Pump Therapy): CSII therapy is available as a treatment option for patients with Type 1 diabetes mellitus provided that Multiple daily injections (MDI) therapy (including, if appropriate, the use of long-acting insulin analogues) has failed to provide adequate control of diabetes mellitus as defined below, and those receiving the treatment have the commitment and competence to use the therapy effectively MDI therapy is considered to have failed when, despite a high level of care of their diabetes mellitus: it has been impossible for the individual to maintain a haemoglobin A1c (HbA1c) level of less than 8.5%, or the person is experiencing disabling hypoglycaemia, which, means the repeated and unpredictable occurrence of hypoglycaemia that results in persistent anxiety about recurrence and is associated with a significant adverse effect on quality of life. Patients may be referred to the insulin pump service for assessment if they fulfil the above criteria and are on the basal bolus insulin regimen and reliably monitor their blood sugars at least four times a day. They should be able to count the carbohydrate content of meals (and ideally been for a course such as the DAFNE – Dose Adjustment for Normal Eating). C3.4 Types of Insulin There are a large and confusing number of insulin preparations available. If patients are satisfied with their treatment and achieving satisfactory control in the absence of hypoglycaemia, no modification of their regimen is required. Most insulin currently in use is biosynthetically manufactured of human sequence or analogues with altered pharmacokinetic properties. Many patients prefer the ultra short-acting analogues/mixtures for convenience. Some patients prefer to use animal derived insulin in the belief that use of human sequence insulin may cause loss of awareness of hypoglycaemia. Although such a conviction is quite widespread among the users, carefully conducted scientific studies have consistently failed to provide evidence to support this hypothesis. Some preparations are available in both human and porcine versions (e.g. human and porcine actrapid) which can result in confusion in prescribing and dispensing. It is important to realise that such preparations although similar in their characteristics are not interchangeable, and patients should not be inadvertently changed from one to the other. When patients are deliberately changed from animal to human/analogue insulin a dose reduction of 25% is advised. Please refer to the Diabetes and Emergencies sections for management of insulin therapies during illness. 104 Insulins are most conveniently classified by duration of action as shown in the following table. Summary of insulin classification Ultra short acting Short acting analogues Immediate onset Duration Insulin Lispro (Humalog), Insulin Aspart (Novorapid), up to 4 hours Peak action Insulin Glulisine (Apidra) 60 minutes Short acting Soluble insulin Onset 30 minutes (Human) Actrapid 10ml Vial only, Humulin S, Insuman Rapid* Duration up to 5 hours Hypurin Bovine Neutral*, Hypurin Porcine Neutral*. Peak action 3 hours Intermediate acting a: Isophane insulin (contains protamine) Human Insulatard, Onset 90 minutes Humulin I, Insuman Basal*, Hypurin Bovine Isophane*, Duration: 16-20 hours Hypurin Porcine Isophane*. Peak action: 4-12 hours Intermediate acting b: Insulin Zinc Suspension Onset 120 minutes Hypurin Bovine Lente* Duration: 24 hours Peak action: 6-18 hours Long acting (a) Protamine Zinc Insulin* Onset 4 hours Hypurin Bovine Protamine Zinc 10ml Vial Duration up to or greater than 24 hours Long acting (b) Insulin Glargine (Lantus) Duration up to or greater Insulin Detemir (Levemir) than 24 hours Mixed preparations Biphasic onset and duration of action Fixed mixtures of soluble and isophane insulin (Human) Mixtard 30 / Actrapid / Insulatard in ratios of 30/70 Humulin, M3 Humulin S / Humulin I in ratios of 30/70 Insuman Comb* 15, 25 or 50, Insuman Rapid / Basal* in ratios of 15/85 to 50/50 105 Biphasic Insulin Lispro Humalog Mix 25 or 50 Lispro/LisproProtamine in ratios of 25/75 or 50/50 Biphasic Insulin Aspart Novomix 30 Aspart/Aspart Protamine in a ratio of 30/70 Biphasic Isophane Insulin Hypurin Porcine 30/70 Mix* *: These insulins are rarely used and would not usually be part of a new insulin start. Note Ultra short-acting insulins (e.g. Humalog, Novorapid, Apidra and mixtures i.e. Humalog Mix 25 or 50 and Novomix 30) should be injected immediately before eating or after food. Other insulins should be injected subcutaneously 30 minutes before eating. Long actiong insulins are taken once daily at the same time, eg bb or bt or bbed. 106 C3.4.1 Insulin costs 5x3ml Cartridge Costs (MIMS January 2009) 45 40 35 30 25 20 15 10 5 0 Apidra (Glulisin) Humalog (Lispro) Novorapid (Aspart) Figure 1 - Insulin Costs Humulin S (soluble) Lantus (Glargine) Levemir (Detemir) Humulin I (isophane) Insulatard Humalog 25 Humulin M3 Mixtard 30 Novomix 30 (isophane) Mix £ 107 Draft Guideline – 25 September 2008 C4.0 Hypoglyaemia This section deals with hypoglycaemia in general. Some additional notes pertaining particularly to hypoglycaemia occurring in in-patient situations appear in section C6.0. Hypoglycaemia refers to any episode of low blood glucose (usually <3.5 mmol/l) with or without symptoms and may occur in patients taking insulin, sulphonylureas or prandial glucose regulators. Mild episodes may not only be inconvenient for the patient, but may predispose to more severe episodes which are associated with significant morbidity as well as the development of fear of hypoglycaemia. While prompt recognition and treatment of hypoglycaemia obviates the risk of progression, even if untreated, most isolated episodes recover spontaneously and are not associated with permanent damage. It is reasonable to reassure patients accordingly. Fear of hypogycaemia is such that many patients avoid tightening blood glucose control to minimise risk of its occurrence. ALL PATIENTS PRESCRIBED SULPHONYLUREAS OR INSULIN MUST BE ADVISED ON THE OCCURRENCE, AVOIDANCE, RECOGNITION AND MANAGEMENT OF HYPOGLYCAEMIA. C4.1 Causes of hypoglycaemia Hypoglycaemia occurs when there is an imbalance between: Carbohydrate intake Insulin or oral hypoglycaemic drug dose Exercise/activity. Additional factors that may contribute to the risk of hypoglycaemia include lumpy injection sites (leading to erratic absorption of insulin), inappropriate injection site / technique (including intramuscular injection eg caused by using too long a needle or using arms as injection site), alcohol excess (particularly if combined with exercise and reduced carbohydrate intake) and gastroparesis in patients with autonomic neuropathy and adrenal insufficiency (increased frequency in patients with Type 1 diabetes). C4.2 Symptoms of hypoglycaemia The symptoms of hypoglycaemia vary between patients and the same patient may experience different symptoms in different circumstances. Symptoms are sometimes classified as: autonomic, due to activation of the autonomic nervous system (sweating, tremor, anxiety, palpitations etc) neuroglycopenic due to reduced glucose delivery to the brain (poor concentration, odd behaviour, dizziness) non-specific (headache, tingling lips etc) 108 Draft Guideline – 25 September 2008 . Symptoms of hypoglycaemia may be non-specific and vague (eg dizziness, feeling “wobbly”), especially in the elderly. Hypoglycaemia should always be considered as a possible cause of such symptoms, or collapse, in any patient taking sulphonylureas or insulin. Symptoms generally develop when the blood glucose falls to around 3.5 mmol/l. In most patients the autonomic symptoms occur before the neuroglycopenic symptoms and provide a useful warning. Sometimes autonomic symptoms are a reflection of anxiety about possible hypoglycaemia rather than a reflection of a truly low blood glucose level; capillary glucose testing can be useful in differentiating. Patients with poor control and chronic hyperglycaemia may report symptoms of hypoglycaemia at higher blood glucose levels; this situation is an indication for negotiating a gradual stepwise approach if there is to be progress in achieving improvement in blood glucose control. C4.3 Hypoglycaemia unawareness In some patients the autonomic warning features may not provide effective warning e.g. those with long-duration of diabetes, very tight glycaemic control or recurrent episodes of hypoglycaemia. This may result in hypoglycaemia unawareness when the patient is unable to recognise the onset of problems, with potentially serious physical and psychological consequences. Hypoglycaemia unawareness due to very tight control is generally reversible through meticulous avoidance of hypoglycaemia and relaxation of targets e.g. three months with a minimum blood glucose level of 6 mmol/l. C4.4 Treatment of hypoglycaemia All patients treated with insulin or sulphonylureas (or prandial glucose regulators) should be advised to carry carbohydrate with them. As soon as symptoms are recognised or if a low blood glucose value is recorded (with or without symptoms), the patient should be advised to take one of the following: 3 Dextrose tablets or sugar lumps Half of a small bottle (150ml) of sugary drink e.g cola, lemonade, or similar – (not diet or lite varieties) Fruit juice – 1 glass (200 ml) If the patient’s medication includes acarbose (Glucobay), then glucose e.g. Dextrosol must be used for treatment of hypoglycaemia (not a disaccharide such as sucrose (table sugar) or lactose (milk sugar)). If symptoms and / or metered glucose are not improving after 10 minutes this should be repeated. If the patient is too drowsy to cooperate, “Glucogel” (formerly known as Hypostop) may be applied to the inside of the cheek and massaged from the outside. It may be advisable for patients to keep Glucogel at home/work and instruct family members/ friends/colleagues how to use it. If the patient is unresponsive, 1 mg of glucagon (“Glucogen”) should be given subcutaneously or intramuscularly (once only per episode). It may be also 109 Draft Guideline – 25 September 2008 appropriate to instruct partners, close relatives, friends or colleagues of susceptible insulin-treated people in the use of glucagon and to ensure that they keep a kit available. Alternatively 25g (50ml) of 50% dextrose can be given intravenously by professional help. During the initial treatment of hypoglycaemia, high fat foods (eg chocolate) or long acting carbohydrates (bread, plain biscuits) are not the best choice as these will treat be slow to raise the blood glucose and may impair absorption of ingested fast acting carbohydrate. After the initial treatment (once metered glucose is >4mmol/l), it is essential for the patient to take long acting carbohydrate such as biscuits and milk or a sandwich to prevent the hypoglycaemia from recurring. C4.5 Hypoglycaemia and sulphonylureas Hypoglycaemia may occur in patients taking sulphonylureas and is often underreported in the elderly when the symptoms are non-specific and are confused with other conditions e.g. TIAs. Hypoglycaemia may recur following initial treatment and occasionally admission to hospital may be required. Newer long-acting sulphonylureas e.g. Glimepiride and modified release Gliclazide seem much less likely to cause hypoglycaemia than obsolescent long acting agents such as chlorpropamide. In the frail or elderly, when patients are eating less due to intercurrent illness / hospitalisation, dose reduction or cessation of sulphonylurea may need to be considered to avoid hypoglycaemia. The dose can be increased again once normal eating patterns are restored. Progressive renal impairment also potentiates the risk of hypoglycaemia with sulphonylureas (and insulin). C4.6 Nocturnal hypoglycaemia This is a common occurrence in insulin-treated patients. Patients may or may not wake up during the night with symptoms, or sometimes wake up the following morning feeling “hung-over”. In the great majority of circumstances moderate levels of hypoglycaemia will wake the patient; ready access to appropriate fast acting carbohydrate by the bedside will facilitate corrective action. Nocturnal hypoglycaemia may contribute to the development of hypoglycaemia unawareness. The risk of nocturnal hypoglycaemia can be minimised by ensuring a snack containing complex carbohydrate is taken at bedtime (irrespective of blood glucose reading), and allowing the blood glucose to be between, say, 7 and 9 at bedtime. Patients who take a twicedaily regimen of mixed insulin, or isophane insulin at night should be advised to have a bedtime snack. However this is may not be so important for patients on a basal-bolus regimen using the newer long-acting analogues as these have a flatter action profile. The following measures may also reduce the risk of nocturnal hypoglycaemia: 110 Draft Guideline – 25 September 2008 With basal/bolus regimens long acting insulin analogues, i.e. insulin glargine (Lantus) or insulin detemir (Levemir) appear to be associated with a lower incidence of hypoglycaemia than long acting human sequence insulins. With twice-daily pre-mixed regimens those containing a short-acting analogue such as Humalog Mix 25 or Novomix 30 are associated with less nocturnal hypoglycaemia than those containing human sequence soluble insulin eg Mixtard 30 or Humulin M3. Splitting the evening insulin dose so that the quick acting insulin is taken before the evening meal and the intermediate acting insulin is taken at bedtime may also be helpful for those using premixed insulin. Replacing human sequence soluble insulin at teatime with a shorter acting insulin analogue e.g. Lispro / Novorapid C4.7 Rebound Hyperglycaemia After an episode of hypoglycaemia patients may experience marked hyperglycaemia, which can be prolonged (12-20 hours). This is only partly related to carbohydrate consumption to treat hypoglycaemia. A greater contribution is made by release of so-called counter-regulatory hormones that act by various means to raise glucose (and thus try to prevent early recurrence of hypoglycaemia); counter-regulatory hormones will raise glucose levels following hypoglycaemia whether or not the episode was detected at the time (e.g. during sleep). It must be remembered that hyperglycaemia may follow an earlier period of hypoglycaemia and that reducing the hypoglycaemic risk may be the action required to prevent recurrence of the rebound hyperglycaemia. C4.8 Avoidance of hypoglycaemia The risk of severe hypoglycaemia can be minimised by self-monitoring of blood glucose, review of insulin / drug regimen, quantity and timing of carbohydrate intake and injection sites. Patients should be advised to “Make 4 the floor” with respect to their targets for glucose control i.e. try to avoid glucose values below 4. However in patients who do not low glucose levels will be unknown unless symptomatic and for those who have had problems with severe hypoglycaemia the lower targets for glycaemic control may need to be relaxed. C4.9 Driving and hypoglycaemia Patients should be advised to check their blood glucose before and during long car journeys (at least every 2 hours) and should always carry carbohydrate in the car. If they have hypoglycaemic symptoms while driving they should stop the car as soon as safely possible, remove the keys from the ignition, leave the driver’s seat and take oral carbohydrate. Driving should not be resumed for at least 45 minutes. Patients who have lost their warning 111 Draft Guideline – 25 September 2008 symptoms of hypoglycaemia or those experiencing recurrent hypoglycaemia should be advised not to drive until the problem has been resolved. It should be documented in clinical records when such advice has been given. C4.10 Exercise related hypoglycaemia Exercise is to be encouraged in those with diabetes and due care must be taken to give advice on observance of appropriate precautions for avoidance of problems. Hypoglycaemia related to exercise may occur at the time of exercise or up to 24 hours afterwards while the body’s glycogen (carbohydrate) stores are being replenished. The risk of hypoglycaemia is related to the intensity and duration of exercise. Those less accustomed to regular exercise need to exercise particular caution. Patients should be advised to consider reducing insulin doses before and after exercise (including the day afterwards) and/or increase dietary carbohydrate and alter injection sites, e.g. avoiding legs if running/ cycling or arms if rowing/kayaking as such exercise will increase absorption of insulin. It is advisable for patients to have easy access to rapid-acting carbohydrate (eg orange juice / glucose tablets) when exercising. Additional nutritional advice, particularly for those engaging in more vigorous physical activity is available on the following website: http://www.runsweet.com 112 Draft Guideline – 25 September 2008 C5.0 Management of Diabetic Emergencies in the Community Acute illness in insulin-treated patients Encourage blood glucose checks 2-4 hourly. Ensure monitoring equipment and technique satisfactory. Never stop insulin. Increase dose according to blood glucose. Give 4 units of quick acting insulin every 2 hours until blood glucose less than 10 Check for ketones.Ketostix urine or Medisense Optium meter blood. If moderate or large an increase in insulin may be necessary with subsequent check for ketones later same day. Ensure continued fluid intake.100-200ml / hour (approx 1 glass) or an egg cupful /10 minutes. If vomiting prevents fluid intake, consider buccal or parenteral anti-emetic. Admission may be required. Carbohydrate intake must be maintained by fluids if unable to eat. See 10g CHO Guidance below. THE HOSPITAL DIABETES TEAM IS THERE TO ADVISE. Acute illness in Non-Insulin-treated patients Provided not severely dehydrated or showing features of Hyperosmolar Coma ( drowsiness) then high blood glucose levels can be tolerated for a short illness Markedly dehydrated hyperglycaemic patients should be admitted for IV fluids. THE HOSPITAL DIABETES TEAM IS THERE TO ADVISE Consider admission if: Inability to swallow or keep fluids down Persistent vomiting Persistent diahorroea Persistently raised blood glucose greater than 28 despite increased insulin Strongly positive ketones No improvement 24-48 hours When ketoacidosis clinically obvious (dehydration, thirst, polyuria, abdominal pain, intractable vomiting, rapid or laboured breathing) 113 Draft Guideline – 25 September 2008 10g CHO Guidance Milk 1 cup (200ml) Fruit juice unsweetened 1 small glass (100ml) Lucozade 50ml Coca Cola (not diet) 150ml Lemonade (fizzy/sweetened) 150ml Ice cream 1 scoop Jelly (ordinary) 2 table spoons Yoghurt (fruit) ½ small carton (60g) Yoghurt (plain) 1 small carton (120g) On Call Hospital Specialist Registrar at ARI Number/Bleep: 2543 114 Draft Guideline – 25 September 2008 C6.0 Management of Diabetes in Hospital C6.1 Introduction In first considering this subject, it is important to differentiate between people in hospital with acute metabolic decompensation, those with established diabetes that is an incidental or contributory issue in their hospitalisation, and those newly found to have a high glucose. The last group need to receive all the due consideration of any new patient with diabetes (see Section A2) – with additional attention paid to modifications occasioned by the nature of the hospital admission and input from the inpatient diabetes team as required. For those with prior diabetes, the patient’s level of engagement and experience in self-management must always be borne in mind. Every encouragement should be given to preserve patient autonomy, but it should be remembered that the lack of familiarity with a particular clinical circumstance may compromise the patient’s coping strategies. Glycaemic control may deteriorate in the hospital setting due to stress of intercurrent illness, changes in dietary intake and decrease in physical activity. Interruptions to accustomed dietary intake or enforcement of medication and dietary concordance may also considerably alter the patient’s circumstances. The circumstance of clinical decision making in hospital can also limit the skilled patient’s opportunity to apply appropriate flexibility in selfmanagement. As a consequence, both hyperglycaemia and hypoglycaemia are common in the hospital setting. It is often therefore appropriate to alter interim glucose targets to a broader (and safer) range than would apply in the chronic out-patient situation (e.g. 6-14mmol/l) to prevent problems with hypoglycaemia and hyperglycaemia. However, persistent and significant hyperglycaemia (>17mmol/l) should be prevented/treated to avoid dehydration, caloric loss, infection and ketoacidosis. Hospitalised patients may benefit from opportunistic specialist review and appropriate education. Timely liaison with the specialist diabetes team can reduce the risk of glucose management problems during admission and can facilitate early discharge. 115 Draft Guideline – 25 September 2008 Contact details for ARI inpatient diabetes team: Diabetes Specialist Nurse: Telephone 01224 559364 (direct line), 59364 (internal) or Bleep 3334 for urgent matters (Monday to Friday 9am to 5pm) Diabetes Specialty Registrar: Bleep 2543 (Monday to Fridays 9am to 5pm, Weekends 9am to 12.30pm) Out-with these hours please contact nursing station at Ward 28 on 01224 552004 (52004 internal) for medical staff contact details. Elgin: Contact Switchboard: 01343 543131 (Internal 67998) 116 Draft Guideline – 25 September 2008 C6.2 Diabetic emergencies C6.2.1. Diabetic Keto Acidosis (DKA) DKA is a potentially life threatening complication of diabetes that while often preventable, must be dealt with as a matter of urgency once established. Diagnosis of DKA is only appropriate in the presence of diabetes AND ketosis AND acidosis. A national protocol for management of confirmed DKA in adults only is available on pre-printed forms in acute areas; it can also be down loaded from the intranet link below. A separate paediatric protocol is available for children under the age of 15 years. The paediatric protocol may also be appropriate in adults of low body weight (BMI < 16kg/m 2), as it reduces the risk of fluid overload. The Diabetes specialist team should be contacted as appropriate for advice regarding management of DKA Adult DKA protocol http://intranet/ccc_nhsg/6179.909.html?pMenuID=460&pElementID=909 Paediatric DKA protocol http://www.bsped.org.uk 117 Draft Guideline – 25 September 2008 C6.2.2 Hyperosmolar Non Ketotic Hyperglycaemia (HONK) HONK is a life threatening condition, which mainly occurs in older people with Type 2 diabetes. HONK is characterized by dehydration, very high blood glucose and high serum osmolality (>320mosm/l) but without ketoacidosis or heavy ketonuria; modest ketonuria and lactic acidosis may sometimes occur. Mortality is very high (up to 50%). Early diabetic specialist review is recommended. Management is similar to DKA but the fluid replacement should be less rapid. Some advocate rehydration with 0.45% saline claiming it reduces the risk of hypernatraemia. Blood glucose should be reduced gradually to avoid precipitating cerebral oedema. Patients with HONK should also be considered for subcutaneous heparin prophylaxis due to increased risk of thrombo-embolism. Once treated, most patients can be managed on diet with or without oral hypoglycaemic agents. C6.2.3 Hypoglycaemia in hospital Hypoglycaemia occurs more frequently in hospitalised patients with diabetes. Common causes include interruptions to accustomed dietary intake, change in their medications and fasting for various procedures. This section focuses on the treatment and prevention of hypoglycaemia in hospitalised patients. Further details regarding hypoglycaemia can be found in Section C4. Hypoglycaemia refers to any episode of low blood glucose (< 3.5 mmol/l) with or without symptoms and may occur in patients taking insulin or sulphonylureas (e.g. Gliclazide, Glipizide, Glimepiride). As soon as symptoms are recognised or if a low blood glucose value is recorded (with or without symptoms) the patient should be advised to take one of the following: 3 Dextrose Tablets 150 ml (half glass) of lucozade or cola or lemonade (not ‘diet’ varieties) Fruit juice –200-300mls Check blood glucose level after 10-15 minutes. If blood glucose level still less than 4 mmol/l, repeat the treatment. If the patient is too drowsy to co-operate, Glucogel (2 tubes) should be applied to the inner cheeks and then massaged from the outside. This treatment can also be given to the fasting patient without compromising their fasting status. If the patient is unresponsive - 20 mls of 50% Glucose should be given intravenously using a large cannula as a bolus. This can be repeated if the patient remains unresponsive. If unable to obtain venous access – 1mg of Glucagon (Glucagen) can be given intramuscularly or sub-cutaneously (once only per episode); patients frequently experience nausea and vomiting after this treatment so it should not be used unless essential. 118 Draft Guideline – 25 September 2008 After the initial treatment, it is advisable when appropriate for the patient to take complex carbohydrate such as milk and biscuits or a sandwich to try to prevent further episodes of hypoglycaemia. Following hypoglycaemia, consider the circumstances that led to it and the potential need for adjustment of diabetes treatment to reduce the risk of recurrence. 119 Draft Guideline – 25 September 2008 C6.2.4 Prevention of Hypoglycaemia during Hospital Admission Avoid giving unopposed insulin infusion (i.e. without iv glucose – unless during early iv management phase of hyperglycaemia) Avoid disconnecting or stopping I.V.fluids while on intravenous insulin pump If any concern, e.g. blood glucose levels suddenly dropping, temporarily reduce interval between capillary glucose checks to 30 or 15 minutes Ensure patients treated with s/c insulin have carbohydrate-containing snacks available, especially for bedtime Be aware that after episodes of hypoglycaemia patients typically have REBOUND hyperglycaemia perhaps lasting several hours. These high levels of blood glucose should be allowed to return to normal without intervention (unless developing significant ketonuria). Resisting the temptation to give extra insulin may avoid recurrence of the primary hypoglycaemic event! 120 Draft Guideline – 25 September 2008 C6.3 Management of Diabetes during intercurrent illness C6.3.1 Type 1 diabetes Patients with Type 1 diabetes are regarded as being continuously dependent on external insulin for their survival. Whenever possible, patients should be involved in decision making concerning management of their glycaemia. If there is reasonable likelihood of patients being able to eat and drink, then the ‘sick day’ rules should be followed (chapter C5). If blood glucose levels are high, it may be appropriate to use increased insulin doses for patients on basal-bolus insulin therapy, and additional supplementary doses of quick acting insulin (before lunch and before bed) for patients on twice daily pre-mixed insulin. A Variable Rate Insulin Infusion Protocol (C6.3.3) is available for use when oral intake is compromised. C6.3.2 Type 2 diabetes Patients, who are on diet alone, may need no specific therapy during intercurrent illness apart from monitoring, to ensure blood glucose is reasonably stable. Patients on oral hypoglycaemic agents may need increased oral therapy or may need insulin temporarily (especially, for example, with steroid therapy). If blood glucose levels are high (> 17 mmol/l before meal times), consider adding subcutaneous soluble insulin (e.g. Actrapid, Humulin S 4 units). Management of insulin treated Type 2 diabetic patients is usually similar to that of Type 1 diabetes. It is important to consider discontinuation of increased hypoglycaemic treatment on recovery. Intercurrent or new chronic illness may alter safety of some OHAs and there is potential for adverse interaction with newly introduced medications; this should be borne in mind when managing in-patients. Certain oral hypoglycaemic agents may be contraindicated in the acutely ill patient, e.g. Metformin should be discontinued in impaired renal function (eGFR < 30) severe sepsis and acute left ventricular failure. Similarly, glitazones are contraindicated in patients with unstable ischaemic heart disease and cardiac failure. Deteriorating renal function reduces insulin clearance and so may increase the hypoglycaemic potential of given doses of insulin or sulphonylureas. C6.3.3 Variable rate intravenous insulin infusion This protocol is used in several circumstances: 1. For controlling glucose levels when patients are not able to take their usual insulin and diet e.g. peri-operative fasting; 2. Intercurrent illness where blood glucose levels are insufficiently controlled on usual diabetic medication; 3. For 48 hrs after diagnosis of acute myocardial infarction, if admission glucose is over 11mmol/l. 121 Draft Guideline – 25 September 2008 The protocol aims at maintaining blood glucose levels in a safe range (814mmol/l) avoiding risks of significant hypo/hyperglycaemia. Circumstances necessitating the use of this protocol should be regularly reviewed and patients should be switched back to their usual diabetic medications as soon as possible. Adult DKA protocol http://intranet/ccc_nhsg/6179.909.html?pMenuID=460&pElementID=909 Paediatric DKA protocol http://www.bsped.org.uk 122 Draft Guideline – 25 September 2008 Protocol for Variable Rate Intravenous Insulin Infusions When to use this protocol: Peri-operative management of patients with insulin-treated diabetes / patients on near maximum dose oral hypoglycaemic agents undergoing major surgery. This includes patients who are clinically well but who have a high glucose requiring stabilisation peri-operatively Management of insulin-treated patients who are unable to take a normal diet (eg fasting for investigations / nausea and vomiting etc) On rare occasions for the continuing management of patients who remain unable to take a full diet following initial treatment for diabetic ketoacidosis and hyperosmolar coma (ie bicarbonate has normalised and blood glucose less than 14 mmol/l) When not to use this protocol: For patients with DKA ie elevated glucose / ketonuria and acidosis (use DKA protocol) For patients who are clinically well, not peri-operative and presenting with high glucose (ie > 14 mmol/l) with or without ketonuria. Please consider if insulin infusion is really required or whether subcutaneous insulin would be more appropriate Control of blood glucose in patients who are eating and drinking, whether or not they require IV fluids for other reasons (such patients should be treated with their normal oral hypoglycaemic agents or sc insulin) IF YOU ARE NOT SURE WHICH PROTOCOL YOU SHOULD USE PLEASE CONTACT THE DIABETES TEAM FOR ADVICE: Diabetes specialist nurse: Bleep 3334 Diabetes registrar: Bleep 2543 Or contact ward 27/28 and where senior nursing staff may be able to help you or give you the contact number for the ward registrar / SHO or diabetes consultant on-call. 123 Draft Guideline – 25 September 2008 Protocol for Variable Rate Intravenous Insulin Infusions FLUIDS Set up an iv infusion at a rate of 100ml/hr, containing: 500ml 4% Glucose + 0.18% Sodium Chloride + 0.15% (10mmol) Potassium Chloride OR 500ml 5% Glucose + 0.15% Potassium Chloride Omit potassium if plasma potassium level > 4.5mmol/l (nb care in patients with renal impairment). INSULIN Insulin infusion (50 units Human Actrapid in 50ml 0.9% Sodium Chloride, ie 1 unit/ml) by syringe pump according to the scale below. Aim to keep blood glucose between 8 and 14 mmol/l, check capillary glucose hourly using ward meter. Insulin infusion scale Start insulin infusion at 2 units / hour (2 ml/hour) and monitor at hourly intervals: If capillary glucose between 8 and 14 mmol/l, leave at present infusion rate. If capillary glucose > 14 mmol/l and patient is not eating increase infusion rate by 2 units / hour, to a maximum of 8 units per hour , then inform Dr. If capillary glucose > 14 mmol/l within 2 hours of a meal, do not increase dose. If capillary glucose < 8 mmol/l and conscious level is obtunded (eg perianaesthesia), stop the insulin infusion and consult a doctor immediately. If capillary glucose < 8 mmol/l and patient is fully conscious, halve rate of insulin infusion. (Recheck glucose in 30 minutes). Do not reduce rate below 0.5 units per hour – contact Dr. If capillary glucose still < 8 mmol/l at 0.5 units / hour, change to 10% Glucose + 0.15% Potassium Chloride (using a large peripheral vein eg antecubital). If capillary glucose < 3.5 mmol/l, reduce insulin infusion rate as above and give 100mls of 10% Glucose over 5-10minutes. If capillary glucose > 17mmol/l, check urine for ketones. Patients at risk of fluid overload or cardiac failure eg post MI To avoid volume overload start the intravenous infusion at a rate of 50ml/hr as follows: 500 ml 10% Glucose + 0.15% Potassium Chloride (10mmol) Insulin infusion as above (50 units Actrapid in 50ml 0.9% saline, ie 1 unit /ml). For patients on human or pork soluble insulin, when the patient is able to eat, the usual dose of subcutaneous insulin should be given 30 minutes prior to eating and the insulin 124 Draft Guideline – 25 September 2008 infusion discontinued 30 minutes after the subcutaneous injection. For patients on Humalog or other fast acting insulin analogues, when the patient is able to eat, the usual dose of subcutaneous insulin should be given 5 minutes prior to eating and the insulin infusion can be discontinued immediately after the subcutaneous injection. Patients who take oral hypoglycaemic agents should have their drugs recommenced at this stage. If you experience any problems, please contact the hospital Diabetes Specialist Nurse (bleep 3334) or Diabetes Registrar (bleep 2543) during working hours or Ward 27/28 after 5pm and at weekends. Feb 2002 When not to use this protocol: 1) Patients with diabetes, who present with hyperglycaemia (e.g. >14mmol/l) alone, who are otherwise well, eating and drinking normally. Please consider whether insulin infusion is really necessary. Review their present diabetic medications and if necessary, consider subcutaneous soluble insulin before meals if capillary glucose is more than 17mmol/l (e.g. Actrapid, Humulin S 4 units). 2) Patients with DKA/ HONK- use appropriate protocol (see Section ). 3) Patients on nasogastric feed. Although, Variable Intravenous insulin infusion can be used temporarily, subcutaneous insulin therapy is more appropriate in these circumstances (e.g. Isophane insulin twice daily). Please liaise with the diabetes team. 4) Patients on TPN – TPN team will usually advise. C6.4 Guidelines for diabetes management during procedures requiring fasting These guidelines help both health care professionals and diabetic patients manage diabetes safely without significant hypoglycaemia or hyperglycaemia during various procedures that require fasting. While it is difficult to include every possible scenario in detail, guidelines have been developed keeping colonoscopy as a general example (with as many variations as possible) and these guidelines can also be used in similar circumstances. Those on diet alone need no specific intervention but patients on insulin therapy and on OHAs need some adjustments in their medications. In general, patients on basal-bolus therapy need 50% reduction in their basal insulin on the previous day and should omit quick acting insulin while fasting. Patients on twice daily pre-mixed insulin should omit their morning insulin on 125 Draft Guideline – 25 September 2008 the day of the procedure. Once able to eat and drink, normal insulin doses should be resumed at the earliest opportunity (e.g. if on twice daily insulin, after the procedure take half the usual morning insulin dose at lunch time). Frequent capillary glucose monitoring is essential to avoid hypo/hyperglycaemia which may often go unnoticed especially after administration of sedation. Occasionally, some patients (with particularly unstable diabetes or limited capability for safe self-management) may need to be admitted for intravenous insulin infusion during these procedures and the use of variable rate intravenous insulin infusion protocol (see section C6.3.3) is recommended. The following specific patient information leaflets are available for certain hospital procedures: i) Guidelines for people with insulin treated diabetes undergoing outpatient colonoscopy / flexible sigmoidoscopy (morning and afternoon) ii) Guidelines for people with tablet treated diabetes undergoing outpatient colonoscopy / flexible sigmoidoscopy iii) Guidelines for people with diabetes undergoing outpatient upper GI endoscopy 126 Draft Guideline – 25 September 2008 Section D: Complications D1.0 Blood Pressure .............................................................................. 128 D1.1 NICE clinical guideline 66 – Type 2 diabetes – Blood Pressure ............................................................................................... 129 D2.0 Cardiovascular disease and diabetes .......................................... 130 D2.1 Screening ................................................................................ 130 D2.2 Specific cardio-protective therapy ........................................... 130 D2.3 Lipids ...................................................................................... 132 D3.0 Eye Care, Screening and Treatment ............................................ 134 D3.1 Eye screening ......................................................................... 134 D3.2 Mydriasis ................................................................................. 135 D3.3 Medical treatment ................................................................... 135 D3.4 Laser treatment ....................................................................... 136 D3.5 Diabetic eye screening guidelines - classification and action .. 136 D3.5.1 Visual acuity ................................................................ 136 D3.6 Fundoscopy ............................................................................ 136 D3.7 Scottish Diabetic Retinopathy Grading Scheme 2007 v1.1..... 137 D3.8 Obtaining individual patient results ......................................... 140 D4.0 Foot Care, Screening and Treatment ........................................... 142 D4.1 Foot Screening........................................................................ 142 D4.1.1 SCI-DC Foot Screening Tool ...................................... 143 D4.1.2 Annual Diabetic Foot Screening.................................. 144 D4.2 Management guidelines for Charcot neuroarthropathy in people with diabetes .......................................................................... 146 D4.3 Diabetic Foot Ulceration and Wound Management................. 147 D4.3.1Care Pathway for Active Diabetic Foot Ulceration ....... 148 D4.3.2 Referral Pathway for Pressure Relief .......................... 149 D4.4 Good practice guidance for the use of antibiotics in patients with diabetes foot ulcers ................................................................ 151 D5.0 Neuropathy - Autonomic ............................................................... 163 D6.0 Renal Disease ................................................................................ 165 D6.1 Screening for diabetic renal disease ....................................... 165 6.2 Definitions .................................................................................. 165 D6.2.1 Assessment of dipstick positive patients .............................. 166 D6.2.2 Assessment of dipstick negative patients ............................ 166 D6.2.3 Algorithm for microalbuminuria screening in the community ................................................................... 168 D6.3 A simple guide to eGFR interpretation and nephrology referral guidelines. .............................................................................. 169 D6.4 Management of Diabetic Renal Disease ................................. 171 D6.5 Referral for specialist renal advice .......................................... 171 127 Draft Guideline – 25 September 2008 D1.0 Blood Pressure Blood pressure control is extremely important. It is as important, if not more so, than blood sugar control. Tight blood pressure control in patients with hypertension and Type 2 diabetes achieves a clinically important reduction in the risk of deaths related to diabetes, complications related to diabetes, progression of diabetic retinopathy, and deterioration in visual acuity. (Conclusion of UKPDS 38 1998) Reducing blood pressure needs to have high priority in caring for patients with Type 2 diabetes. The ‘standard’ guidance of blood pressure management as described by the British Hypertension Society applies to all patients. http://www.bhsoc.org/Latest_BHS_management_Guidelines.stm Management specific to diabetes is contained in NICE clinical guideline 66 The management of Type 2 diabetes Section 1.8 http://www.nice.org.uk/nicemedia/pdf/CG66NICEGuidance.pdf 128 Draft Guideline – 25 September 2008 D1.1 NICE clinical guideline 66 – Type 2 diabetes – Blood Pressure Measure BP annually if not hypertensive or renal disease If >140/80 mmHg confirm consistently raised above target Trial lifestyle measures alone unless >150/90 mmHg above target Maintain lifestyle measures Start ACEI (and titrate dose) (if African-Caribbean plus diuretic or plus CCB) above target Targets People with retinopathy or cerebrovascular disease or with microalbuminuria Follow algorithm with target <130/80 mmHg Others Follow algorithm with target <140/80 mmHg Women with possibility of pregnancy Avoid use of ACEI or A2RB drugs Begin with CCB In people with continuing intolerance to an ACE inhibitor (other than renal deterioration or hyperkalaemia) substitute the ACE inhibitor with an A2RB drug. People with microalbuminuria Will already be on full dose ACEI or alternative Then follow algorithm with target <130/80 mmHg Add CCB or bendroflumethiazide above target Add bendroflumethiazide or CCB above target Add α-blocker, β-blocker, or potassium-sparing diuretic Scheme for the management of blood pressure for people with Type 2 diabetes ACEI, ACE inhibitor; A2RB, angiotensin 2 receptor blocker (sartan); CCB, calcium channel blocker above target Add α-blocker, β-blocker, or potassium-sparing diuretic, or refer to specialist 129 Draft Guideline – 25 September 2008 D2.0 Cardiovascular disease and diabetes Atherosclerotic macro-vascular disease is the major cause of morbidity and mortality in people with diabetes mellitus. The increased risk of angina, myocardial infarction, transient ischaemic attacks (TIAs), stroke disease and peripheral arterial disease is related to relative hyperglycaemia over a prolonged period of time. For example diabetes is associated with a two to three-fold increased risk of coronary heart disease in men and in pre-menopausal women with longstanding diabetes the risk is increased four to five-fold. Any additional risk factor further magnifies the risk i.e. smoking, hypertension, hyperlipidaemia, microalbuminuria/ proteinuria, obesity, ethnicity or family history of premature vascular disease. D2.1 Screening All people with diabetes aged over 18 should have their risk factors for cardiovascular disease assessed as part of the annual screening process: History and examination as appropriate. Smoking habit – SectionB3.5 Blood pressure –Section D1 Lipid levels – Section D2.3 page 135 Urinary microalbumin / proteinuria screen – Section D6 Diet/ Weight /BMI or waist circumference – SectionA4.1 Physical activity level – SectionB3.3 Glycaemic control – Section C Intervention for these modifiable risk factors should be discussed with all patients and implemented as appropriate – see relevant sections. D2.2 Specific cardio-protective therapy General guidance on cardiovascular risk reduction is covered in depth in JBS 2: Joint British Societies’ Guidelines On Prevention Of Cardiovascular Disease In Clinical Practice (Prepared by: British Cardiac Society, Diabetes UK, British Hypertension Society, HEART UK, Primary Care Cardiovascular Society, The Stroke Association) http://www.bcs.com/download/651/JBS2final.pdf Management specific to diabetes is contained in NICE clinical guideline 66 The management of Type 2 diabetes Section 1.9 http://www.nice.org.uk/nicemedia/pdf/CG66NICEGuidance.pdf 130 Draft Guideline – 25 September 2008 In addition to the above interventions, specific therapies to reduce the cardiovascular risk should be offered to the following individuals, after informed discussion between the individual and responsible clinician, unless contraindicated: Known cardiovascular disease i.e. history of angina, myocardial infarction, transient ischaemic attack, stroke or symptomatic peripheral arterial disease ? Known diabetic nephropathy (proteinuria or microalbuminuria) ? Simvastatin 40mgs or equivalent * Low dose aspirin ^ Ace inhibitor or AT2 blocker # Yes No No No Aged ≥ 40 years with Type 1 or type 2 diabetes mellitus? Yes Simvastatin 40mgs or equivalent * No Younger adult with Type 1 or Type 2 diabetes and one or more of the following? Hypertension Yes Severe retinopathy, treated proliferative retinopathy or confirmed maculopathy? Total cholesterol ≥ 6 mmol/l Features of metabolic syndrome † FH of premature CVD (siblings or parents) Poor glycaemic control (HbA1c > 9%) No Observe * Statins are contraindicated in pregnancy and careful discussion regarding contraception is required before use in women in child bearing years. Please see Grampian formulary for most recent advice on lipid lowering therapy www.nhsgrampian.org/grampianfoi/files/Statin_statement_October2007. pdf The risks and benefits of Aspirin for primary prevention of cardiovascular disease in people with diabetes are under investigation. ^ Clopidogrel 75 mg daily may be used as an alternative for patients intolerant of Aspirin. Avoid antiplatelet therapy if there is active vitreous haemorrhage. 131 Draft Guideline – 25 September 2008 † Central obesity and fasting triglyceride > 1.7 mmol/l (non fasting >2.0 mmol/l) and /or HDL < 1.0 mmol/l in men or < 1.2 mmol/l in women # Renal function should be closely monitored after introduction and titration. D2.3 Lipids JOINT STATEMENT ON THE USE OF LIPID REGULATING DRUGS IN GRAMPIAN - March 2009 http://www.nhsgrampian.org/nhsgrampian/GJF_general.jsp?pContentID=4756 &p_applic=CCC&p_service=Content.show#m.nh Advice on use of lipid lowering agents in Grampian first issued in February 2005 (second review February 2007), has been updated March 2009. This review was undertaken by the Grampian Medicines Management Group (GMMG) and the Managed Clinical Network for CHD. GENERIC SIMVASTATIN 40mg IS THE PREFERED INITIAL AGENT THE OPTIMUM DOSE IS REGARDED AS 40MG AT NIGHT WHY HAS GUIDANCE OTHERWISE CHANGED? Recently robust safety and efficacy data has become available for rosuvastatin. This agent has a number of advantages over atorvastatin. It is cheaper, more potent, less likely to cause drug interactions and at least in the 10mg dose associated with few side effects. Whilst rosuvastatin is the preferred second-line statin there are still occasions where atorvastatin may be specifically recommended. The risks and benefits of treatment should be discussed with the patient including the risk of side effects that can be increased by some drugs (see BNF) and medical conditions (e.g. renal failure). In such cases closer monitoring may be required. FOR PATIENTS WITH ESTABLISHED VASCULAR DISEASE: An initial dose of simvastatin 40mg at night is recommended for most patients. Simvastatin 80mg is not recommended in view of significant adverse effects. If patients are complying with therapy and targets cannot be achieved on 40mg simvastatin, then a switch to rosuvastatin 10mg is recommended. As a guide this should give approximately 25% more efficacy. Higher doses of rousuvastatin should not be used for initiation of routine therapy. Fibrates can be used when a patient is intolerant of any statin. Ezetimibe can be used as monotherapy where patients cannot tolerate either statin or fibrate or as additive therapy in patients who fail to achieve target on 20mg of rousuvastatin. It is not licensed for addition to fibrates. If triglycerides (or initial total cholesterol) are >10mmol/litre then expert advice should be obtained. 132 Draft Guideline – 25 September 2008 IN PRIMARY PREVENTION Drug therapy should now be routinely used for individuals with a risk >20% over 10 years. This assessment should be based on risk tables and not on cholesterol levels alone. Simvastatin 40mg at night is the recommended therapy. There is no evidence for further dose titration and it is not a requirement of QoF. Focused attention to improving general lifestyle measures is always an essential component of primary prevention. Diabetic patients over the age of 40 should be treated following the 'established disease' recommendations above; younger diabetic patients should be considered for primary prevention. There is currently no robust outcome data for the use of either fibrates or ezetimibe although pragmatically they could be used with discretion. If cholesterol or triglycerides are >10mmol/l then expert advice should be obtained. Lipid Management specific to diabetes is contained in NICE clinical guideline 66 - The management of Type 2 diabetes Section 1.10 http://www.nice.org.uk/nicemedia/pdf/CG66NICEGuidance.pdf 133 Draft Guideline – 25 September 2008 D3.0 Eye Care, Screening and Treatment D3.1 Eye screening The Grampian Diabetes Retinal Screening Programme undertakes screening for diabetic retinopathy within Grampian Region. The success of the Retinal Screening Programme depends on referral to the service from primary care of all appropriate patients. All patients with diabetes are offered appointments at the discretion of their General Practitioner. Patients unable to co-operate with examination or who have no perception of light in either eye should not be offered screening. However it may be appropriate that these patients are referred directly to the ophthalmology department for review. All other patients should be invited to attend, including those registered blind as, despite the terminology, many still have useful remaining vision. In particular the commonest causes of blindness in people with diabetes are age-related macular degeneration and diabetic macular oedema. Screening is still essential to look for new-vessel formation that could affect their remaining peripheral vision. Patients who attend Ophthalmology Clinics for reasons other than monitoring or management of their diabetic eye disease should still be encouraged to attend for retinal screening. Screening criteria Who When Where By Whom How People with diabetes aged 12 years or over Refer at diagnosis. Screen at least annually*. Will vary according to local arrangements. Routine screening by Diabetes Retinal Screening Programme. Digital retinal imaging *Ophthalmologists or the Retinal Screening Programme may undertake repeat examination more frequently in certain high-risk groups. In pregnancy retinal examination should be undertaken in each trimester. Defaulters Screen opportunistically by whoever sees them diabetologist, optometrist, general practitioner. Should have visual acuity (with glasses or pinhole) recorded and either non-mydriatic retinal photography or direct ophthalmoscopy with mydriasis (1% tropicamide). Documentation Methodology and findings should be reported according to the Scottish Diabetic Retinopathy Grading System – details in Appendix 5. 134 Draft Guideline – 25 September 2008 Frequency of screening Patients will be recalled at least on an annual basis for screening for diabetic retinopathy. Those with referable retinopathy or referable maculopathy will be referred on to the ophthalmology service. Those patients will moderate retinopathy or observable maculopathy will be rescreened at a 6 month interval. Obtaining individual patient results Patients diabetic retinal screening outcomes and retinal images may be accessed and shown to your patients via the SCI-DC Network system – see section on Information Technology. D3.2 Mydriasis Patients who are attending the Grampian Diabetes Retinal Screening Programme will not routinely have their pupils dilated unless it is not possible to get a gradeable image with digital photography. If dilation is required, 1% Tropicamide should be used. This may cause blurring of vision and affect the ability to drive or operate machinery for up to four hours, and patients should be appropriately warned. Glaucoma, whatever form, is not a contraindication to mydriasis. Contact lenses do not need to be removed. D3.3 Medical treatment Tight blood pressure control has a dramatic effect on the progression of eye disease and the prevention of visual impairment. It is always strongly advised. Tight glycaemic control also has a beneficial effect on the progression of eye disease and the prevention of visual impairment. In some patients however if control is tightened up too quickly this can lead to progression of retinopathy. In patients with no retinopathy or only mild background changes this usually manifests itself as the development of cotton wool spots. These are of no consequence and will often disappear. In patients with severe background or worse retinopathy rapid tightening of glycaemic control can lead to rapid progression to high-risk proliferative retinopathy. If the patient’s retinopathy status is unknown and they are poorly controlled then they should be referred to the Grampian Diabetes Retinal Screening Programme for assessment, if possible, prior to tightening up of glycaemic control. As it takes years for the complications of diabetes to occur, it would seem prudent for glycaemic control to be improved gradually over 6-12 months in such at risk patients. Patients with poorly controlled diabetes who are admitted to hospital with diabetes or non diabetes-related illness should have their eyes examined prior to discharge. This is particularly important if the patient is a chronic defaulter from the Diabetic or Eye Clinic. 135 Draft Guideline – 25 September 2008 D3.4 Laser treatment Laser treatment is very effective at treating proliferative (new vessels) retinopathy and will prevent the majority of people developing significant visual impairment. Laser treatment is less effective at treating patients with maculopathy (changes affect the centre of vision) but attention to blood pressure and glucose control can make a significant impact in preventing deterioration. D3.5 Diabetic eye screening guidelines - classification and action D3.5.1 Visual acuity Normal corrected visual acuity Action Review visual acuity annually Visual acuity worse than 6/9 in the worst eye Stable or previously explained Action Review visual acuity annually Deteriorating (by 2 or more lines) or previously unexplained Action Ask patient to attend their own Optometrist for refraction and if vision cannot be improved then consider reason unrelated to diabetic retinopathy (e.g., cataract, chronic amblyopia, senile macular degeneration). Refer to ophthalmologist as appropriate Diabetic retinopathy. Macular oedema may present with no specific fundoscopic change. Action Refer to ophthalmologist D3.6 Fundoscopy Ophthalmoscopy is an alternative method to photography for examining the retina. The Health Technology Board for Scotland recognises that indirect ophthalmoscopy using a slit-lamp is sensitive and specific enough for retinal screening but notes that it carries the disadvantage that there is no permanent record of the image for quality assurance or for monitoring progressive changes. However, this technique will be essential for screening failures of digital photography. Direct ophthalmoscopy has high specificity but its sensitivity is too low to form the basis of a national screening programme. Direct ophthalmoscopy still has a role though in opportunistic screening for those who persistently default from the systematic national programme. 136 Draft Guideline – 25 September 2008 D3.7 Scottish Diabetic Retinopathy Grading Scheme 2007 v1.1 This system is used for screening by the Grampian Retinal Screening Programme or opportunistically. The Grampian Retinal Screening Programme will initiate appropriate onward referrals or review schedules. Retinopathy Description Outcome R0 (no visible retinopathy) No diabetic retinopathy anywhere Rescreen 12 months R1 (mild) Background diabetic retinopathy BDR – mild The presence of at least one of any of the following features anywhere dot haemorrhages microaneurysms hard exudates cotton wool spots blot haemorrhages superficial/ flame shaped haemorrhages Rescreen 12 months R2 (observable background) Background diabetic retinopathy BDR observable Four or more blot haemorrhages (ie _AH standard photograph 2a – see below) in one hemifield only (Inferior and superior hemi-fields delineated by a line passing through the centre of the fovea and optic disc) Rescreen 6 months (or refer to ophthalmology if this is not feasible) R3 (referable background) Background diabetic retinopathy BDR – referable Any of the following features: Four or more blot haemorrhages (ie AH standard photograph 2a – see below) in both inferior and superior hemi-fields Venous beading (AH standard photograph 6a – see below) IRMA (AH standard photograph 8a – see below) Refer ophthalmology These patients may be kept under surveillance and will not necessarily receive immediate laser treatment. 137 Draft Guideline – 25 September 2008 R4 (proliferative) Proliferative diabetic retinopathy PDR Any of the following features: Active new vessels Vitreous haemorrhage Refer ophthalmology These patients are likely to receive laser treatment or another intervention. R5 (enucleated) Enucleated eye R6 (inadequate) Not adequately visualised : Retina not sufficiently visible for assessment Rescreen 12 months (other eye) Technical failure Arrange alternative screening examination. This will be automatic within the screening programme. 138 Draft Guideline – 25 September 2008 Photo 2a Photo 6a Photo 8a All photographic images in relation to Diabetic Retinopathy grading outcomes can be viewed at http://eyephoto.ophth.wisc.edu/ResearchAreas/Diabetes/DiabStds.htm Maculopathy M1 (Observable) Description Lesions within a radius of > 1 but ≤ 2 disc diameters of the centre of the fovea Any hard exudates M2 (Referable) Lesions within a radius of ≤ 1 disc diameter of the centre of the fovea Any blot haemorrhages Any hard exudates Coincidental Description findings PhotoLaser photocoagulation scars present coagulation Other Other non-diabetic lesion present Pigmented lesion (naevus) Age-related macular degeneration Drusen maculopathy Myelinated nerve fibres Asteroid hyalosis Retinal vein thrombosis Outcome Rescreen 6 months (or refer to ophthalmology if this is not feasible) Refer ophthalmology These patients may be kept under surveillance and will not necessarily receive immediate laser treatment. Outcome Grading note This grading scheme is not intended to be done by levels. It is meant to be done by features. The grader reports the presence or absence of each of the following features for each hemisphere and then derives the level for the 139 Draft Guideline – 25 September 2008 individual eye: . . . . . . • Dot haemorrhages or microaneurysm • 4 or more blot haemorrhages (i.e. ≥ standard photography 2a) • Venous Beading (≥ AH standard photograph 6a) • IRMA (≥ AH standard photograph 8a) • New vessels • Vitreous haemorrhage D3.8 Obtaining individual patient results Retinal screening results and images may be accessed using SCI-DC. Click on ‘eye screening images to access retinal images Click here to view patient’s retinal images Grading outcomes at top of page, scroll down to see retinal image 140 Draft Guideline – 25 September 2008 Please refer to IT section regarding call/recall process. 141 Draft Guideline – 25 September 2008 D4.0 Foot Care, Screening and Treatment D4.1 Foot Screening The chief factors responsible for foot problems in the diabetic foot are neuropathy and ischaemia, often a combination of the two, with infection as both a provoking and complicating factor. The purpose of diabetic foot screening is to detect patients who are showing signs of neuropathy and/or ischaemia. It is important to enable appropriate management patients with diabetes; absence of symptoms should not be taken as an indication of absence of risk. All people with diabetes will be foot screened at diagnosis and annually thereafter using the SCI DC foot screening tool (see next page) to determine their foot risk stratification. Foot screening will be provided by NHS Grampian Retina Screening Service or at practice level. A suitably-trained healthcare professional will carried out foot screening using the SCI DC foot screening tool. Training will be provided by NHS Grampian podiatry department. Contact details from NHS Grampian MCN website www.diabetes.nhsgrampian.org The use of a calibrated 10g Monofilament is essential. Ongoing management of the diabetic foot depends on risk stratification of the patient which identifies those at risk of developing diabetic foot complications. See appendix 1 Having identified the patients at increased risk of developing a diabetic foot ulcer we can then minimise this risk by interventions such as education, regular podiatry and therapeutic footwear and insoles. 142 Draft Guideline – 25 September 2008 D4.1.1 SCI-DC Foot Screening Tool 143 Draft Guideline – 25 September 2008 D4.1.2 Annual Diabetic Foot Screening 144 Draft Guideline – 25 September 2008 D4.1.3 Diabetic Foot Risk Stratification and Triage “Traffic Lights” 145 Draft Guideline – 25 September 2008 D4.2 Management guidelines for Charcot neuroarthropathy in people with diabetes Charcot foot is a neuroarthropathy process with osteoporosis, fracture, acute inflammation and disorganisation of foot architecture, (SIGN 2001) Clinical features Diabetes patient presents with red, oedematous, hot and possibly painful foot. Usually bounding pedal pulses with evidence of impaired neurological testing. Differential Diagnosis Differential diagnosis between Charcot Neuroarthropathy and infection should always be considered. Diagnosis / Investigations “Diagnosis should be made by clinical examination”. (Frykberg et al 2000; Jeffcoate et al 2000) Usually a good blood supply to lower limb with degree of neuropathy Observe foot for obvious signs of tissue trauma, cellulites or systemic toxicity to rule out Infection History of trauma to limb may be present Heat differentiation between limbs -affected limb often 2-8 degrees higher than the contra lateral foot Blood test- HbA1c, Hb, ESR and C-reactive protein X-Ray for baseline and to exclude diabetic neurophathic fracture If Charcot foot suspected consider MRI/Bone scan Management “Refer people with suspected Charcot’s foot immediately to the Multidisciplinary Foot Clinic or Diabetes Podiatrist for immobilisation of the affected joint(s) and for long term management to prevent ulceration”. (NICE 2004) Off loading urgently required ideally with either Total Contact Casting or Aircast Boot. Pressure relieving Off loading device usually worn until inflammation settles, heat differentiation disappears and bone activity reduces. (SIGN 2001) Patient education, Patients require comprehensive education on the causes and management of Charcot foot and advice on prevention of complications. There is insufficient evidence to support the routine use of Bisphosphonates in the acute Charcot Foot (SIGN 2001) however there are a number of studies which indicate that the Bisphosphonates may be useful in halting the acute phase of Charcot neuroarthropathy in some patients. (Anderson et al 2004, Jude et al 2001). All 146 Draft Guideline – 25 September 2008 suspected Charcot Foot cases to be reviewed by Consultant Physician at Multidisciplinary Foot Clinic to consider options. Discontinue therapy when foot temperature equal. Long Term Management Patients will require a referral to the Orthotist for a managed program of pressure relief. Classify patient as High Risk and review regularly for signs of longterm complications. D4.3 Diabetic Foot Ulceration and Wound Management 5-7% of all people with diabetes will by affected by a foot ulcer at some point during their lives. Diabetic foot ulcers are a major reason for hospitalisation and account for more than two-thirds of non-traumatic lower limb amputations performed. A unified approach to foot care management is essential. No one health care professional should deal with this problem. It continues to be a challenge to diabetic medicine and requires a multi-disciplinary approach. (SIGN guideline 55, 2001, NICE guideline10, 2004)) Urgent referral to a Diabetes Podiatrist (by telephone or fax followed by a written referral) is the most appropriate route for patients with a diabetic foot ulcer and possible soft tissue infection. (Please refer to NHS Grampian MCN website for contact details of Diabetes Podiatrist. www.diabetes.nhsgrampian.org) 147 Draft Guideline – 25 September 2008 D4.3.1Care Pathway for Active Diabetic Foot Ulceration Ulcer present ( Def.- A break in skin with loss of surface tissue and disintegration of epithelial tissue) Determine cause of ulcer e.g. trauma, neuropathic, ischaemic or neuroischaemic. Determine current vascular and neurological status. Assess wound and record all findings e.g. duration of wound, size, depth, appearance etc. Is infection present? Contact GP for commencement of antibiotic cover Take a wound swab and send to microbiology Refer to Diabetes Podiatrists for (Contact details available from NHS Grampian MCN website www.diabetes.nhsgrampian.org ) Assessment of patient Immediate pressure relief Referral to members of the multidisciplinary foot team Referral to M.A.R.S. for a managed program of pressure relief. 148 Draft Guideline – 25 September 2008 D4.3.2 Referral Pathway for Pressure Relief Diabetic Foot Ulcer Refer to Diabetes Podiatrist for Initial Pressure relieving device Appropriate referral to Orthotist at Mobility and Rehabilitation Service (MARS) for Assessment of a managed program of pressure relief (Contact details for Diabetes Podiatrists are available from NHS Grampian MCN website www.diabetes.nhsgrampian.org) 149 Draft Guideline – 25 September 2008 D4.3.3Painful Diabetic Neuropathy 150 Draft Guideline – 25 September 2008 D4.4 Good practice guidance for the use of antibiotics in patients with diabetes foot ulcers This document has been endorsed by the Scottish Diabetes Group on behalf of the Scottish Government, and is recommended for use as National guidance. 1. INTRODUCTION The following is guidance to help health-care professionals to make decisions that will improve outcomes for their patients. This is a consensus document based on limited available clinical trial evidence, review of international guidelines and expert opinion. There may be circumstances where alternative courses of action may be appropriate. Guidance about antibiotic choice is primarily dependent on local microbiological epidemiology and susceptibility patterns. However, the consensus group felt that the pathogens causing infection in Scotland for the various diabetic foot infection clinical syndromes are unlikely to vary substantially within Scotland. Therefore there is some merit in providing broad practical guidance about antibiotic choice but this should be subject to local adaptation if necessary. 2. GENERAL APPROACH TO FOOT ULCERS Team Approach All patients with diabetes and foot ulcers should be managed in a multidisciplinary foot-care setting. Previous ulceration is the strongest predictor for further ulceration. Thus, after healing, preventative measures need to be addressed. Attention to aggressive treatment of macrovascular risk factors in patients with foot ulcers has been shown to prolong survival. Specimens for Culture It is debated whether ulcers with clinical signs of infection should have a specimen taken for culture at outset. If not then cultures should be taken if there is clinical failure of empirical antibiotics. Aspiration of purulent secretions, curettage of debrided wound base, punch biopsy and exuded bone are the best specimens to obtain. Loose Bone Loose bone exuded from an ulcer, or any bone debrided should be sent for bone culture and microbiological assessment. The extrusion of a bone fragment (sequestrum) is highly suggestive of underlying osteomyelitis although the infection may have arrested coincident on the passage of the sequestrum. Investigation of Osteomyelitis If concerned about osteomyelitis, Plain X-ray is the usual initial investigation of choice. However, the X-ray can be normal for 2 weeks before any changes are seen, and thus serial X-rays may be required. If there is ongoing concern then the secondary investigations of choice 151 Draft Guideline – 25 September 2008 are (in order of preference): MRI > Isotope White cell Scan > Triple phase Bone scan. The isotope bone scan is relatively sensitive at diagnosing osteomyelitis, but is not specific, and can remain positive for over one year. The white cell scan may be difficult to obtain in some areas. Choice of test may be dictated by local availability. “Probe to Bone” Inability to touch bone when probing a wound with a sterile metal probe, makes osteomyelitis very unlikely, with a negative predictive value of about 90%. The positive predictive value of a positive probe to bone test is only around 50%, which means that ulcers that probe to bone frequently do not have osteomyelitis. “Sausage Digit” The presence of a red swollen “sausage” digit is suggestive, of osteomyelitis, but can be consistent with other causes such as fracture. Differentiating Osteomyelitis and Charcot This can be difficult, and is based on taking a good history and examination with supplementary evidence from MRI and other investigations. Osteomyelitis and Charcot foot can frequently occur simultaneously. Foot Ulcer Classification Various Ulcer classification schemes can be used (Wagner, Texas, SINBAD, PEDIS). The SCI-DC electronic ulcer management programme is based on the Texas scheme (figure 1) Classification of Infection It is recommended that the presence and severity of infection can be classified according to the Infectious Disease Society of America (IDSA)/ International Working Group for the Diabetic Foot (IWGDF) classification (table 1). Table 1 (Lipsky et al, Clinical Infectious Diseases 2004: 39: 885-910: IDSA guidelines) SEVERITY OF INFECTION DESCRIPTION 1. NO INFECTION 2. MILD (GRADE 2) Either: a) 2 or more features of inflammation: Pus; Erythema; Pain; Tender; Warmth; Induration Or b) Cellulitis < 2cm. Confined to skin or subcutaneous tissue. No systemic illness. 3. MODERATE (GRADE 3). Above with Either a) lymphatic streaking, deep tissue infection (subcutaneous, fascia, tendon, bone), abscess, Or b) Cellulitis >2cm 152 Draft Guideline – 25 September 2008 (but with no systemic illness) 4. SEVERE (GRADE 4). Any infection with systemic toxicity (fever, shock, vomiting, confusion, metabolic instability). Presence of critical ischaemia may make the infection severe. 153 Draft Guideline – 25 September 2008 3. GENERAL PRINCIPLES OF ANTIBIOTIC USE (see below for specifics) Antibiotic choice is primarily dependent on local microbiological susceptibility and epidemiology. However antibiotics often need to be started before this information is available. As the pathogens in diabetic foot infections do not vary significantly in Scotland, the consensus group recommends broad practical guidance about antibiotic use. These are however subject to changing local epidemiology and prescribing policy. Initial treatment is frequently empirical based on the presumed pathogen; see table 2 and 3. This guidance is of value until microbiological and clinical response shed further light. The choice of antibiotic, agent and route of delivery, should reflect the severity of infection as reflected by the IDSA/IWGDF definition– see table 1. The duration of antibiotic use should be adjusted according to the severity of infection (table) and can be guided by monitoring clinical improvement. In general duration of antibiotic therapy should be kept short. In light of international concerns over the risk of C.difficile associated with broad spectrum antibiotics (especially clindamycin, co-amoxiclav, cephalosporins and quinolones) and MRSA risk (associated with coamoxiclav, cephalosporins and quinolones and macrolides) narrow spectrum therapy should be used wherever possible. C.difficile is a particular risk for patients aged over 65years and in-patients. Adjustment of therapy based on microbiology results, when available, is important. Allergies to antibiotics refer to skin rash or anaphylaxis. This does not include minor side-effects such as nausea. Enterococci, Pseudomonas and anaerobes are frequently grown as colonising organisms, rather than infecting organisms. If however there is a chronic persisting infection or they are the predominant organisms, they may be more important, and need treatment. This document provides general advice, but direct contact with local specialists may be necessary in certain circumstances for advice with regard to more specialised use of these or other antibiotics. 154 Draft Guideline – 25 September 2008 Figure 1. 155 Draft Guideline – 25 September 2008 4. SPECIFIC ANTIBIOTIC GUIDANCE (see Table 2 for summary) For different clinical syndromes the likely microbiology and therefore initial antibiotic can be predicted with some degree of confidence although there will on occasions be unusual circumstances. We emphasize the importance of getting good quality specimens (see above) for microbiology and of close liaison with the local infection specialist. Main choice antibiotics in blue and alternatives in green are provided. The advice given is for empirical choices of antibiotics. If there is local guidance based on local sensitivities, then this should take precedent. 4.1 Mild infection (IDSA) or (PEDIS 2) and the patient is antibiotic naïve. Likely pathogens are S.aureus (coagulase-negative Staphylococcus) or beta-haemolytic streptococci. If previously treated with antibiotics, enterococci and gram negative rods (GNRs) are likely to be present. Oral flucloxacillin 1g qds. Oral Alternatives Doxycyline 100mg bd Clindamycin 300-450mg qds, if the patient is allergic to or intolerant of flucloxacillin. A second course of flucloxacillin is rarely effective if the first course has been unsuccessful, assuming that the first course was given in high dose and for a full 5-7 days. There is an increased prevalence of resistant organisms after the first exposure to flucloxacillin. Treat for 5-7 days and then decide about further antibiotics depending on clinical response and microbiological culture. Ensure microbiological culture if unusual organism suspected, or initial treatment fails. 4.2a Moderate (IDSA) or PEDIS 3 and the patient is antibiotic naïve. Good quality microbiological culture is usually helpful in these circumstances. Likely pathogens are S.aureus or beta-haemolytic streptococci. Those with limb ischaemia, gangrene, necrosis or a foul odour from the wound often have obligate anaerobic pathogens. Oral flucloxacillin 1g qds Oral Alternatives: Co-trimoxazole 960mg bd Co-amoxiclav 625mg tds Clindamycin 300-450mg qds or co-trimoxazole, if the patient is allergic to penicillins. Add in oral metronidazole 400mg tds if anaerobes suspected IV flucloxacillin 1g qds. If IV route for clindamycin is needed then use 450-600mg qds. 156 Draft Guideline – 25 September 2008 4.2b Moderate (IDSA) (or PEDIS 3) and the patient is NOT antibiotic naïve. Patients with chronic infections, especially if they have received antibiotics previously often have polymicrobial infections, including aerobic gramnegative bacilli among the flora. a) IV co-amoxiclav 1.2gtds – especially if anaerobes or coliforms suspected Oral switch option is oral co-amoxiclav 625 tds or Co-trimoxazole 960mg bd If the patient is allergic to penicillins consider: b) IV ciprofloxacin 400mg bd and IV metronidazole 500mgtds ± vancomycin (if MRSA considered likely) Or IV gentamicin* and IV metronidazole ± vancomycin (if MRSA considered likely) The choice will depend on the relative risks of C.difficile versus those of renal impairment. * The dosing of gentamicin is high dose once daily and should be determined by local practice and will require close monitoring of serum levels and renal function. Gentamicin dosing for more than 48 hours should only be continued with specific advice from the infection specialist. Oral switch option is oral ciprofloxacin 500- 750mgbd with oral metronidazole 400mg tds, or oral ciprofloxacin 500- 750mg bd and clindamycin 300-450mg qds Treat for 7 days. Adjust therapy in light of clinical response and results of culture and sensitivity results. 4.3a Severe infection (IDSA) (or PEDIS 4), antibiotic naïve. High quality culture (see section 2) is usually helpful in these circumstances. The likely pathogens are S.aureus or beta-haemolytic streptococci but may need to cover also for anaerobes and enterobacteriacea and Pseudomonas aeruginosa. Caution: Pseudomonas is usually a coloniser rather than being an infecting organism. As grade 4 infection implies systemic toxicity, it is generally advised that such patients should be admitted to hospital for the initial phase of management. IV co-amoxiclav 1.2gtds +/- gentamicin 5-7mg/kg once daily or as per local practice. . Gentamicin dosing for more than 48 hours should only be continued with specific advice from the infection specialist If the patient is allergic to penicillins or there is concern about renal function consider IV ciprofloxacin 400mg bd and IV metronidazole 500mgtds. ± vancomycin (if MRSA considered likely) Treat for a minimum of 10-14 days 157 Draft Guideline – 25 September 2008 4.3b Severe infection (IDSA) (or PEDIS 4) and the patient is not antibiotic naive and has risk factors for drug resistant infection Previous antibiotics within last 90 days, recent hospitalisation/s for more than 2 days within last 90 days, previous colonisation or infection with resistant organism e.g MRSA or Extended Spectrum Beta-Lactamase (ESBL) producing E.coli or Klebsiella spp) or proven resistant infection IV piperacillin/tazobactam (tazocin) 4.5g tds ± vancomycin if MRSA suspected (consult pharmacy for dose but aim for a trough vancomycin level of 1520mg/l). If penicillin allergy IV ciprofloxacin 400mg bd and add IV metronidazole 500mg tds. Oral switch options in these patients are best guided by microbiology where possible. Otherwise, try oral ciprofloxacin 500- 750mg bd and metronidazole 400mg tds. If extended spectrum beta-lactamase (ESBL) producing coliform is proven then seek specialist infection advice. Treat for minimum of 10-14 days, then review need for antibiotic. If continuing MRSA cover is required and the patient can be discharged from hospital we suggest either outpatient and home parenteral antimicrobial therapy (OHPAT) if available (usually given iv teicoplanin) or oral linezolid is an option but treatment beyond two weeks needs to be monitored closely for bone marrow toxicity, particularly thrombocytopenia or leucopenia, and lactic acidosis, which are usually reversible on discontinuation of the drug Rifampicin 300mg bd AND oral doxycycline 100mg bd OR fusidic acid 500mg tds OR trimethoprim 200mg bd The rifampicin may offer difficulties related to drug interaction [eg warfarin]. All these agents can be used in penicillin allergic patients. 158 Draft Guideline – 25 September 2008 5. OSTEOMYELITIS Early local surgery to excise infected bone can help accelerate healing and reduce the length of time antibiotics are required. For other cases, antibiotic therapy will lead to resolution of infection in up to 60% to 80% of cases. The exact role of local surgery remains controversial. The evidence base for antibiotic choice for these infections is poor. However, in general terms the group recommends that where there is evidence of osteomyelitis the treatments outlined above should be continued for at least 46 weeks, and sometimes longer depending on clinical response. Sometimes measurement of serial CRP’s and White cell count may help, but not more than once per week. Various antibiotics require monitoring of liver function tests, full blood count and/or serum drug levels. Rationalisation of therapy should be discussed with an infection specialist. For MRSA osteomyelitis there is some evidence that adding rifampicin 600mg bd or Sodium Fusidate to other treatments can be beneficial There is no evidence that IV therapy is superior to oral therapy, although in certain infections like MRSA IV therapy delivered in the OHPAT setting is attractive to enhance compliance and reduce hospitalisation. In osteomyelitis tolerability of oral antibiotics is a significant issue and therapy may need to be tailored accordingly. If considering the use of linezolid for osteomyelitis the prescriber must be aware of its unlicensed status for this indication and of the risks of bone marrow toxicity, peripheral or optic neuropathy and lactic acidosis. 159 Draft Guideline – 25 September 2008 Table 2. Summary of Good practice statement on Antibiotic choice for the diabetic foot. Choices should always be guided by deep culture results when available. Treatment should be for 5-7 days (mild/moderate) to 10-14 days (severe) and then review the need for longer treatment. If osteomyelitis present then treat for at least 4-6 weeks and then review the need for longer treatment. IV antibiotics may be switched to oral preparations after an appropriate interval (see main text) MILD Either 2 or more features of inflammation (pus, erythema, pain, tender, warmth, induration), OR Cellulitis < 2cm. Confined to skin or subcutaneous tissue. No systemic illness ANTIBIOTIC NAIVE Oral Flucloxacillin 1g qds* Alternatives: Doxycycline 100mg bd Clindamycin 300-450mg qds MODERATE Either two or more features lymphatic streaking, deep tissue infection (subcutaneous, tendon, fascia, bone), abscess, OR b) Cellulitis >2cm SEVERE Systemic toxicity (fever, shock, vomiting, confusion, metabolic instability) ANTIBIOTIC NAIVE Oral Fluxcloxacillin 1g qds* (for MSSA, ß-H Strep) Alternatives: Cotrimoxazole 960mg bd Coamoxiclav 625mg tds Clindamycin 450mg bd +/-metronidazole 400mg tds ANTIBIOTIC NAIVE (Oral therapy inappropriate) IV Co-amoxiclav 1.2g tds ± Gentamicin* 5-7mg/kg If allergic to penicillin: IV Ciprofloxacin 400mg BD & IV metronidazole 500mg tds ± Vancomycin If NOT antibiotic naïve: See alternatives above If NOT antibiotic naïve: IV CoAmoxiclav 1.2g tds Alternatives: IV Ciprofloxacin 400mg tds & IV Metronidazole 500mg tds ±IV Vancomycin* (if MRSA) or IV Gentamicin & IV Metronidazole 500mg tds ± IV Vancomycin* (if MRSA) Oral switch: Ciprofloxacin 750mg bd & Metronidazole 400mg tds or Ciprofloxacin 750mg bd & Clindamycin 300-450mg qds If NOT antibiotic naïve: IV Tazocin 4.5g tds + IV Vancomycin if MRSA. If allergic to penicillin see alternatives opposite MRSA IV Vancomycin* IV Teicoplanin* (Home IV service) Oral switch: Rifampicin* with trimethoprim or MRSA IV Vancomycin* IV teicoplanin* (Home IV service) Oral switch: Rifampicin* with trimethoprim or 160 Draft Guideline – 25 September 2008 doxycycline or fusidic acid* doxycycline or fusidic acid* Linezolid 600mg bd#* Linezolid 600mg bd#* * Require monitoring. Add rifampicin 600mg bd or Sodium Fusidate if osteomyelitis # Note concerns about linezolid toxicity with protracted therapy Table 3. Empirical guide as to which organisms are likely to be the infecting organism and which antibiotics are likely to be effective. INFECTING ORGANISM Staphylococcus (aureus) MRSA -Haemolytic Streptococcus Enterococcus Pseudomonas (Gm negative bacillus) Anaerobic PRIMARY GROUP OF ANTIBIOTICS Penicillinase resistant Penicillin Eg Flucloxacillin Vancomycin Teicoplanin (for other options discuss with infection specialist) ALTERNATIVE Doxycycline Clindamycin Amoxicillin Rifampicin combined with trimethoprim or doxycycline or fusidic acid, Cotrimoxazole, Linezolid Clindamycin Amoxicillin/co-amoxiclav Quinolones eg high dose Ciprofloxacin Metronidazole Vancomycin, Linezolid Piperacillin-tazobactam (tazocin), meropenem Clindamycin Bibliography Lipsky BA, Berendt AR, Deery HG. IDSA guidelines: diagnosis and treatment of diabetic foot infection. Clin Infect Dis 2004; 39: 885-910. Lipsky BA. Empirical therapy for diabetic foot infections: are there clinical clues to guide antibiotic selection. Clin Microbiol Infect. 2007: 13: 351-3 Lipsky BA. New developments in diagnosing and treating diabetic foot infections. Diab Met Res Rev 2008; 28 (suppl 1) S66-71 Jeffcoate WJ, Lipsky BA. Controversies in diagnosing and managing osteomyelitis in diabetes. Clinl Inf Dis2004; 39 (Suppl 2): S115-22. Game FL, Jeffcoate WJ. Primarily non-surgical management of osteomyelitis of the foot in diabetes. Diabetologia 2008; 51: 962-7. Berendt AR, Peters EJ, Bakker K, Embil JM, Eneroth M, Hinchliffe RJ, Jeffcoate WJ, Lipsky BA, Senneville E, Teh J, Valk GD. Specific guidelines for treatment of diabetic foot osteomyelitis Diabetes Metab Res Rev. 2008; 24 Suppl 1:S190-1 161 Draft Guideline – 25 September 2008 Berendt AR, Peters EJ, Bakker K, Embil JM, Eneroth M, Hinchliffe RJ, Jeffcoate WJ, Lipsky BA, Senneville E, Teh J, Valk GD. Diabetic foot osteomyelitis: a progress report on diagnosis and a systematic review of treatment Diabetes Metab Res Rev. 2008; 24 Suppl 1:S145-61 162 Draft Guideline – 25 September 2008 D5.0 Neuropathy - Autonomic Patients with long-standing diabetes may develop neuropathy affecting autonomic function, which may produce a number of different difficult clinical and management problems. Symptoms are often non-specific and other diagnoses should be considered and excluded, if appropriate. As many of these problems are fortunately uncommon it is appropriate to consider seeking specialist advice. The following notes give some basic advice on therapeutic approaches to a range of problems that can result from diabetic autonomic neuropathy. Erectile dysfunction: the advent of selective inhibitors of phosphodiesterase-5 in erectile tissue has revolutionised the initial management of this relatively common problem in diabetic men. Treatment is said to be successful in more than 50% of patients. Sildenafil, Vardenafil and Tadalafil are all available on prescription for patients with diabetes; their use should be avoided in cases of severely compromised cardiovascular function and when nitrates are being taken. Where oral therapies are unsuccessful, referral can be made to a specialist ED clinic (run in Aberdeen by the Urology Department and Mr Gunn in Elgin) for consideration of intracavernosal injection of prostaglandin or vacuum devices. Intermittent diarrhoea: especially occurring nocturnally, this problem may be a direct result of gastrointestinal neuropathy in which codeine phosphate or other antidarrhoeal agents can be helpful. Alternatively, gut dysmotility can lead to atypical bacterial overgrowth and short courses of antimicrobial agents such as tetracycline or metronidazole can be rapidly effective. [Remember also other possible causes of diarrhoea, including Metformin therapy, the possibility of coeliac disease or exocrine pancreatic dysfunction in cases of secondary diabetes]. Postural hypotension: advice on rising/standing cautiously, and avoidance of over-enthusiastic use of diuretics and hypotensive agents may be most effective. Fludrocortisone can be useful in severe cases but may lead to oedema. Vomiting due to gastroparesis: metoclopramide or domperidone may help by promoting gastric emptying. Alternatively, Erythromycin may benefit some patients. Gustatory sweating: fortunately uncommon; best managed by avoidance of foods found by the sufferer to exacerbate the problem. Agents, such as propantheline, may be beneficial but often have marked anticholinergic adverse effects. 163 Draft Guideline – 25 September 2008 Neuropathic oedema: damage to control of capillary blood flow can lead to accumulation of fluid in dependent extremities in the presence of a normal serum albumin and the absence of fluid overload. Ephedrine, an alpha-adrenergic agonist may be useful but care is required in the presence of hypertension and angina. Bladder hypotonia: drug treatment with alpha blocking agents is difficult due to the risk of precipitating symptomatic postural hypotension. 164 Draft Guideline – 25 September 2008 D6.0 Renal Disease Renal impairment is important in patients with chronic diseases or on multiple drug therapy and serum creatinine should be checked annually. Diabetic nephropathy is an important long-term complication of diabetes, which is characterised by persistent proteinuria, hypertension and a progressive decline in renal function. The absence of retinopathy or the presence of haematuria should prompt investigation for other possible forms of renal disease. A definitive diagnosis of diabetic nephropathy can be made by renal biopsy, although this is unnecessary in most cases. Persistent proteinuria confers eighty to one hundred fold increased mortality due largely to cardiovascular disease and such patients often succumb before the need for renal support arises. Survivors with persistent proteinuria eventually progress to end stage renal failure requiring dialysis or transplantation. Microalbuminuria is an early marker of diabetic renal disease and predicts the onset of overt nephropathy in both Type 1 and Type 2 diabetes. Microalbuminuria is also a significant independent risk factor for the development and progression of cardiovascular disease. Aggressive management of blood pressure can retard the progression of diabetic renal disease at all stages. SIGN 103 Diagnosis and Management of CKD http://www.sign.ac.uk/pdf/sign103.pdf covers updated guidance for all patients. The notes below are points more specific to diabetes. D6.1 Screening for diabetic renal disease Who People with diabetes aged 12 years or over When At diagnosis and annually How Dipstick for proteinuria (Albustix or equivalent) Microalbumin estimation if dipstick negative eGFR Outcome Ø Dipstick positive – see 6.2.1 – Assessment of dipstick positive patients Ø Dipstick negative – see 6.2.2 – Assessment of dipstick negative patients 6.2 Definitions Spot urine samples (for screening) Albustix 165 Draft Guideline – 25 September 2008 Dipstick one plus or greater (>200mg/l) indicates proteinuria. Albumin/creatinine ratio (ACR) The ratio of urinary albumin to creatinine concentration. This is a screening test for microalbuminuria. Normal values – female <3.5mg/mmol, male <2.5mg/mmol Timed overnight urine collections (for diagnosis) Normoalbuminuria Normal albumin excretion rate <20 µg/min Microalbuminuria Albumin excretion rate 20- 200µg/min Proteinuria Albumin excretion rate > 200µg/min Spot protein/creatinine ratio (PCR) > 70mg/mmol 24hr urinary protein > 500mg Instructions for patients: ..\Linked documents\Instructions for timed overnight urine collections for albumin excretion rate.doc D6.2.1 Assessment of dipstick positive patients Consider urinary infection or other non diabetic causes Repeat test Persistent proteinuria, when confirmed on two consecutive occasions, should be quantified using a protein/ creatinine ratio measurement on a spot sample. Review result of recent serum creatinine and blood pressure Persistent “dipstick positive” proteinuria negates the need for measurement of microalbuminuria D6.2.2 Assessment of dipstick negative patients Screen for microalbuminuria First voided urine sample after sleep, for albumin/creatinine ratio (ACR). Reject samples with evidence of infection. Normal (male < 2.5, female < 3.5 mg/mmol). Repeat in twelve months. Abnormal – Re-test. If repeat test abnormal proceed to timed overnight urine collection* AER <20ug/min – revert to annual screening AER >20ug/min – microalbuminuria confirmed 166 Draft Guideline – 25 September 2008 ACR levels persistently in excess of 10 mg/mmol always indicate an AER > 20µg/min, and in such circumstances a timed collection may be omitted. In some clinics preliminary screening is performed to identify normal results using the Klinitek 50. Result from Klinitek 50 – both ACR <3.5 and urinary albumin concentration <10 mg/l = normal albuminuria. Repeat in 12 months. Result from Klinitek 50 –ACR >3.5 and/or urinary albumin concentration >10 mg/l = send first voided urine to Lab for further analysis. Patient information sheet – urine testing and microalbuminuria ..\Linked documents\Patient Information Sheet urine testing and microalbuminuria.doc 167 Yes Draft Guideline – 25 September 2008 D6.2.3 Algorithm for microalbuminuria screening in the community 168 Draft Guideline – 25 September 2008 D6.3 A simple guide to eGFR interpretation and nephrology referral guidelines. What Is eGFR? Glomerular Filtration Rate is the most useful measure to describe kidney function in adults. Direct measurement of GFR is involved and expensive. However serum Creatinine can be used together with age and gender to give a calculated estimate which is reasonably accurate, particularly in those with impaired function. A correction factor of 1.212 should be applied to AfricanCaribbean individuals. The calculation is not applicable in acute renal failure and gives poor results in those at the extremes of weight. The GFR is around 100ml/min/1.73m2 in health, so the eGFR effectively describes % kidney function. The introduction of eGFR In Grampian From June 2006, the Biochemistry department will report an estimated GFR (eGFR) alongside reports for serum creatinine. The calculations being used nationally depend on the creatinine assay used, so GFR should not be estimated outside the laboratory. The eGFR will not be reported in delayed samples (>24h), or in children. All values above 60 will all be reported as >60 ml/min/1.73m2. Patient information required by the Biochemistry department to determine eGFR include date of birth and sex. Chronic Kidney Disease Classification GFR can be used to classify patients with chronic kidney disease (CKD). The system in current use was developed by the National Kidney Foundation in the USA. Stage Description GFR 1 Kidney damage and normal GFR >90 2 Kidney damage and mild decrease 60 to 89 in GFR 3 Moderate decrease in GFR 30 to 59 4 Severe decrease in GFR 15 to 29 5 Kidney failure (dialysis or kidney < 15 transplant needed) Kidney damage refers to the additional finding of either direct evidence (eg ultrasound showing polycystic kidneys) or indirect evidence (eg persisting proteinuria) of kidney disease. For further Information and a guide to the management of CKD see www.renal.org/CKDguide/ckd.html. An eGFR guide is also available at http://www.renal.org/eGFR/. How to Interpret the eGFR result eGFR > =60 ml/min/1.73m2 On its own an eGFR result of 2 60 ml/min/1.73m2 indicates normal kidney function and requires no specific action. Clearly there are however many other indicators of kidney disease (eg nephrotic syndrome, severe hyperkalaemia and malignant hypertension) and a normal eGFR should not prevent or delay appropriate referral to a specialist. eGFR 30—- 59 ml/min/1.73m2 ( Stage 3 CKD ) 169 Draft Guideline – 25 September 2008 If this is the first time an abnormal result has been identified then it should be repeated within the week to ensure this is not acute renal failure which should be urgently assessed and referred. The majority of patients with this level of kidney disease will have already been recognised as having an associated risk factor (most commonly diabetes, hypertension or cardiovascular disease in the older patient). The patient should be reviewed with specific note of past results, current medications, BP, cardiovascular risk factors, family history of renal disease and urinary symptoms. Most patients will be asymptomatic and have no specific complications of CKD (Anaemia and Renal Bone Disease). Management should include the following: Advice on smoking, weight, exercise, salt and alcohol intake. Cause of CKD not obvious Progressive declining kidney function Persisting abnormalities on urine dipstick testing (Proteinuria and/or Haematuria). Suspected underlying systemic disease (eg SLE or Vasculitis) Anaemia, cause not identified on standard investigation Persisting abnormalities in Potassium, Calcium or Phosphate. Difficult or uncontrolled hypertension Consider urological referral if indicated by urinary symptoms, ultrasound findings or haematuria. eGFR < 30 ml/min/1.73m2 ( Stage 4+ 5 CKD ) This indicates advanced or severe chronic kidney disease. The majority of Check drug doses, avoid or stop patients in this group will already be nephrotoxic agents. known to the renal service or are Cardiovascular risk reduction with receiving renal replacement therapy. consideration of aspirin and statin Patients who have not previously been therapy assessed by a nephrologist should be Strict BP control target 130/80 in most urgently referred or discussed by telephone. There will be some situations and 125/75 in those with Proteinuria where this is clearly inappropriate due to ACEI or ARB is first line the coexistence of other significant antihypertensive therapy (check pathology but again where there is doubt bloods after introduction to ensure telephone advice can be sought. GFR does not fall > 15%) Management is broadly similar to that outlined in stage 3 CKD but there are Request renal ultrasound in those likely to be specific problems associated with urinary symptoms with Anaemia or Renal bone disease Check Hb, Potassium, Calcium and which warrant specialist advice. Phosphate and monitor bloods 4 - 6 Discussing renal replacement therapy monthly. options (dialysis, transplantation or conservative) should also be undertaken Offer Influenza and Pneumococcal at this time by the specialist renal vaccination multidisciplinary team Stage 3 CKD Nephrology Referral Guidelines Around 5% of the population will have stage 3 CKD and many will remain stable and can be managed in primary care as detailed above. Criteria for referral are listed below: Further referral advice available from consultant staff Nick.Fluck@arh.grampian.scot.nhs.uk 01224 553536 Izhar.Khan@arh.grampian.scot.nhs.uk 01224 552122 Carol.Brunton@nhs.net 01224 559502 C.G.Millar@arh.grampian.scot.nhs.uk 01224 559503 170 Draft Guideline – 25 September 2008 D6.4 Management of Diabetic Renal Disease Patients with diabetic renal disease require frequent and intensive monitoring. Microalbuminuria and proteinuria confirm diabetic renal disease and aggressive management of blood pressure and other risk factors is essential to preserve renal function. These patients are also at high risk of retinopathy, autonomic neuropathy and cardiovascular disease. All patients with microalbuminuria or proteinuria should be commenced on ACE inhibitor therapy. The dosage should be gradually increased to the maximum tolerated dose. Those intolerant of ACE inhibitors should be given Angiotensin II antagonists. Annual measurements of creatinine and albumin/creatinine ratio (protein/creatinine ratio if proteinuric) should be continued. Lowering blood pressure in relatively hypertensive microalbuminuric patients reduces albumin excretion and progression to nephropathy. All agents which lower blood pressure reduce albumin excretion, although ACE inhibitors and AIIAs probably have a class specific effect independent of their hypotensive effect and are the drugs of choice for initial therapy. Blood pressure should be maintained <140/80 mm Hg in all patients (SIGN 55). In Type 1 patients with microalbuminuria or proteinuria the target blood pressure should be lower. The Aberdeen Renal Clinic currently recommend <125/75. Insulin or sulphonylurea requirements usually decrease with advancing renal impairment. Metformin should be discontinued when serum creatinine is > 150 µmol/l. Patients with Type 1 diabetes and proteinuria may benefit from advice from a Dietitian. A reduction of protein intake to 0.6-0.8 g/kg per day may reduce progression of overt diabetic nephropathy. Patients with diabetic renal disease have a high risk of cardiovascular co-morbidity and should be managed aggressively. D6.5 Referral for specialist renal advice Consider referral to specialist renal services when creatinine >150 µmol/l (male), >130 µmol/l (female) or protein/creatinine ratio >300 mg/µmol , eGFR <30. Referral should also be considered for features suggestive of nephrotic syndrome or if persistent proteinuria is not thought to be explained by diabetes (considering the duration of diabetes and absence of other microvascular complications). The presence of both blood and protein may also be indicative of an alternative renal pathology and in cases where this is persistent i.e. detected on more than 2 occasions a referral should be considered. Isolated haematuria will require separate evaluation and is not a feature of diabetic nephropathy. Specialist renal assessment will include assessment for non- diabetic renal conditions if necessary, assessment of GFR and estimation of 171 Draft Guideline – 25 September 2008 likely progression of renal disease. Patients with stable renal disease will be discharged back to routine diabetes care (primary or secondary care) with advice on a threshold for further referral. 172 Draft Guideline – 25 September 2008 Web-sites listed in the Guidelines: NHS Grampian http://www.nhsgrampian.org Main Grampian Diabetes Guidelines: http://www.diabetes.nhsgrampian.org Scotland’s Health on the Web (SHOW) http://www.show.scot.nhs.uk/ Scottish Intercollegiate Guidelines Network (SIGN) http://www.sign.ac.uk/ NHS Scotland information websites: My Diabetes My Way http://www.mydiabetesmyway.org.uk/ Diabetes Information + www.diabetesinfoplus.co.uk NICE Guidelines – Home Page http://www.nice.org.uk NICE guidance on treatment of Type 2 diabetes http://www.nice.org.uk/Guidance/CG66 SCI-DC – home page https://ctc6.tayside.scot.nhs.uk/scidc/ will only work from NHS computer or via intranet DVLA website www.dvla.gov.uk Benefits advice: www.direct.gov.uk JobCentrePlus – help to gain or retain employment: www.jobcentreplus.gov.uk Alcohol: “The management of harmful drinking and alcohol dependence in primary care” (2003). http://www.sign.ac.uk/guidelines/fulltext/74 173 Draft Guideline – 25 September 2008 Obesity: http://www.sign.ac.uk/guidelines/fulltext/69/index.html: SIGN 69: Management of obesity in children and young people (2003) http://www.nice.org.uk/cg043publicinfo2 NICE, the National Institute for Health and Clinical Excellence, has issued new guidance to the health service about how to prevent obesity. This is a summary of the evidence presented for the public. http://www.nice.org.uk/cg043publicinfo NICE, the National Institute for Health and Clinical Excellence, has issued new guidance to the health service about how to treat and manage overweight & obesity. This is a summary of the evidence presented for the public. Health Information Resource Service ***http://www.nhsghpcat.org for catalogue and orders http://www.hi-netgrampian.org The Grampian Health Improvement Network (HI-Net) provides a web based resource full of health improvement information. http://www.sign.ac.uk/guidelines/fulltext/69/index.html http://www.nsc.nhs.uk Criteria used by the NSC to judge whether to introduce a screening programme http://www.nsc.nhs.uk/pdfs/criteria.pdf UK National Screening Committee: Summary of screening and intervention for the main vascular risk factors including obesity and diabetes http://www.screening.nhs.uk/vascular/VascularRiskAssessment.pdf Healthpoint: ***http://www.healthpoint@nhs.net – email address Genetic Types of Diabetes (including MODY) http://www.diabetesgenes.org Food Standards Agency www.Food.gov.uk 174 Draft Guideline – 25 September 2008 Nutrition and healthy eating advice: http://www.takelifeon.co.uk http://www.eatwell.gov.uk www.runsweet.com – nutrition and physical activity Physical activity opportunities and leisure facilities in your area: http://www.AberdeenCity.gov.uk http://www.Aberdeenshire.gov.uk http://www.Moray.gov.uk Click on heading ‘Sports and Leisure’ Quick Links – ‘Sport and Recreation’ Click on heading ‘Leisure’ Cardiac Rehab Programme http://www.gcra.org.uk/ http://www.healthinfoplus.scot.nhs.uk for a one-stop shop to quality assured health information for patients, carers and the public. Follow the links to “Wellbeing”. http://www.healthscotland.com/ Health Scotland provides information to support health improvement in Scotland. It includes is information about food and nutrition and physical activity. http://nhs24.com provides comprehensive up-to-date health information and self care advice for people in Scotland. Diabetes UK http://diabetes.org.uk ***Diabetes in Scotland http://www.sign.ac.uk/guidelines/fulltext/69/index.html leads to SIGN 69 – management of obesity in children & young people Smoking Advice A GP Decision Flow Chart and referral information: http://cgi.grampian.scot.nhs.uk/ http://www.canstopsmoking.com/home.htm 175 Draft Guideline – 25 September 2008 Travel http://www.travax.scot.nhs.uk (for health professionals) http://www.fitfortravel.scot.nhs.uk (for patients) Evidence of value in improving HbA1c Evidence Note – NHS Quality Improvement Scotland http://www.nhshealthquality.org/nhsqis/files/ClinicalGovernance_EN26ClinicalAndCost EffectivenessOfSMBG_JAN09.pdf ***Adult DKA protocol – takes to list and can choose DKA from this http://intranet/ccc_nhsg/6179.909.html?pMenuID=460&pElementID=909 within intranet so wont get access from outside Paediatric DKA protocol http://www.bsped.org.uk NICE guidance on treatment of Type 2 diabetes http://www.nice.org.uk/Guidance/CG66 Blood Pressure: British Hypertension Society http://www.bhsoc.org/Latest_BHS_management_Guidelines.stm Management specific to diabetes is contained in NICE clinical guideline 66 The management of Type 2 diabetes Section 1.8 http://www.nice.org.uk/Guidance/CG66 General guidance on cardiovascular risk reduction is covered in depth in JBS 2: Joint British Societies’ Guidelines On Prevention Of Cardiovascular Disease In Clinical Practice http://www.bcs.com/download/651/JBS2final.pdf Management specific to diabetes is contained in NICE clinical guideline 66 The management of type 2 diabetes Section 1.9 http://www.nice.org.uk/Guidance/CG66 NHS Grampian statement on statins: www.nhsgrampian.org/grampianfoi/files/Statin_statement_October2007. pdf 176 Draft Guideline – 25 September 2008 Lipid Management specific to diabetes is contained in NICE clinical guideline 66 - The management of Type 2 diabetes Section 1.10 http://www.nice.org.uk/Guidance/CG66 Renal: SIGN 103 Diagnosis and Management of CKD http://www.sign.ac.uk/guidelines/fulltext/103/index.html 177 Draft Guideline – 25 September 2008 List of Websites Within the Guidelines Section A: Genetic types of diabetes (including MODY): http://www.diabetesgenes.org The following websites provide useful sources of information about diet and healthy eating: http://www.eatwell.gov.uk provides lots of guidance about nutrition and healthy eating as well as diet related health issues (obesity, diabetes). For more detailed information on alcohol - see SIGN Guideline 74 “The management of harmful drinking and alcohol dependence in primary care” (2003). http://www.sign.ac.uk/guidelines/fulltext/74 http://www.nhsgrampian.org provides details of local sources of advice and contacts for further information about healthy active living. Follow the links to “About NHS Grampian” then “health improvement” and then select “healthy living”. http://www.takelifeon.co.uk Provides a user friendly guide to healthy eating and physical activity for all. http://www.healthinfoplus.scot.nhs.uk for a one-stop shop to quality assured health information for patients, carers and the public. Follow the links to “Wellbeing”. http://www.healthscotland.com Health Scotland provides information to support health improvement in Scotland. It includes is information about food and nutrition and physical activity. http://nhs24.com provides comprehensive up-to-date health information and self care advice for people in Scotland. http://www.nice.org.uk/nicemedia/pdf/CG43publicinfo2.pdf NICE, the National Institute for Health and Clinical Excellence, has issued new guidance to the health service about how to prevent obesity. This is a summary of the evidence presented for the public. http://www.nice.org.uk/nicemedia/pdf/CG43publicinfo1.pdf NICE, the National Institute for Health and Clinical Excellence, has issued new guidance to the health service about how to treat and manage overweight & obesity. This is a summary of the evidence presented for the public. http://www.nice.org.uk/nicemedia/pdf/CG43publicinfo1.pdf NICE, the National Institute for Health and Clinical Excellence, has issued new guidance to the health service about how to treat and manage overweight & obesity. 178 Draft Guideline – 25 September 2008 This is a summary of the evidence presented for the public. http://www.sign.ac.uk/pdf/sign69.pdf: Management of obesity in children and young people (published April 2003) Includes guidance on the prevention and treatment of obesity in children and young adults. (SIGN 8 covered obesity in adults but was published in 1996 and is out of date particularly in relation to treatments for obesity) HTTP://WWW.NICE.ORG.UK/cg43: For the full NICE guideline number 43: Obesity. It includes guidance on prevention of obesity, lifestyle advice and interventions for the treatment of overweight and obesity, and medical or surgical interventions. Health Information Resource Service can provide free information leaflets Catalogue available at: http://www.nhsghpcat.org http://www.hi-negrampian.org: The Grampian Health Improvement Network (HI-Net) provides a web based resource full of health improvement information. Details of physical activity opportunities and leisure facilities in your area can be found on the local authority websites: http:///www.AberdeenCity.gov.uk http://www.Aberdeenshire.gov.uk http://www.Moray.gov.uk Click on heading ‘Sports and Leisure’ Quick Links – ‘Sport and Recreation’ click on heading ‘Leisure’ (contact details of local Active School Co-ordinators can also be found on these sites) http://www.nhsgrampian.org provides details of local sources of advice and contacts for further information about healthy active living. Follow the links to “About NHS Grampian” then “health improvement” and then select “healthy living”. More information about the UK National Screening Committee can be obtained at: http://www.nsc.nhs.uk More information about the criteria used by the National Screening Committee to judge whether to introduce a screening programme can be found here: http://www.nsc.nhs.uk/pdfs/criteria.pdf “Handbook for Vascular Risk Assessment, Risk reduction and Risk Management” http://www.screening.nhs.uk/vascular/VascularRiskAssessment.pdf SIGN guideline 69 179 Draft Guideline – 25 September 2008 http://www.sign.ac.uk/pdf/sign69.pdf Section B Forthcoming courses and events are advertised on the Grampian Diabetes website www.diabetes.nhsgrampian.org Advice on diabetes education for professionals and patients also appears on the Diabetes in Scotland website: www.diabetesinscotland.org.uk Diabetes UK website: www.diabetes.org.uk NHS Scotland My Diabetes My Way www.mydiabetesmyway.scot.nhs.uk Quality Assured Information www.diabetesinfoplus.co.uk Diabetes Stories website (www.diabetes-stories.com) DVLA website: www.dvla.gov.uk Nutritional advice, particularly for those engaging in more vigorous physical activity: www.runsweet.com Exercise Classes Information sheets and referral forms can be found on the MCN website www.diabetes.nhsgrampian.org Cardiac Rehab Programme: http://www.gcra.org.uk/ Smoking Advice Service: http://www.nhsgrampian.org Professionals wishing to find out more about the SAS may wish to log onto our section on Hi-net at http://www.hi-netgrampian.org A GP Decision Flow Chart and referral information is available at: http://cgi.grampian.scot.nhs.uk/ The Health Scotland “Can Stop Smoking” website offers advice and e-mail and text message support. It can be accessed at http://www.canstopsmoking.com/home.htm Additional information can be found on the following websites: http://www.travax.scot.nhs.uk (for health professionals) http://fitfortravel.scot.nhs.uk (for patients) 180 Draft Guideline – 25 September 2008 SCI-DC Network – Access to registered users within NHS computer networks https://ctc6.tayside.scot.nhs.uk/scidc/ Grampian Diabetes Centre – this website provides a range of information about services in NHS Grampian and contains lots of useful information for both patients and those involved in patient care. http://www.diabetes.nhsgrampian.org My Diabetes My Way – this website is designed to help support people who have diabetes as well as their family and friends and provides a host of resources with regards to all aspects of diabetes. http://www.mydiabetesmyway.org.uk/ Diabetes UK – this website provides information guides for people with diabetes as well as extensive information about research into diabetes and fundraising activities. The website also provides local and national information and information about professional conferences and diabetes campaigns. http://diabetes.org.uk Active Scotland – this website allows you to enter your postcode and see what activities are available in your local area, from the easy to the extreme, to help people lead a more active lifestyle. http://www.activescotland.org.uk/ Patient information websites The national website http://www.mydiabetesmyway.scot.nhs.uk Other locally produced leaflets on are available on the MCN website http://www.diabetes.nhsgrampian.org/ Local guidelines for the management of children with diabetes can be accessed via the Grampian diabetes website at: ..\..\..\..\Website\MANGEMENT OF DIABETIC CHILDREN IN RACHvmar06_final[1].doc Further information about the service and the children’s team can also be obtained from: http://www.diabetes-scotland.org/grampian/home.html Section C: Educational leaflets for patients, lab staff and clinical staff are available at www.Diabetesinscotland.org.uk. 181 Draft Guideline – 25 September 2008 Conversion of HbA1c % to mmol/mol Information for patients http://www.diabetes.org.uk/upload/Professionals/Key%20leaflets/53130%20H bA1c%20PWD%20leaflet.pdf Information for healthcare professionals http://www.diabetes.org.uk/upload/Professionals/Key%20leaflets/53130%20H bA1c%20HCP%20leaflet.pdf The evidence of value in improving HbA1c patients is limited http://nhshealthquality.org/evidencenote NICE Treatment protocol for the management of Type 2 diabetes http://www.nice.org.uk/CG66/NiceGuidance/pdf/English Additional nutritional advice, particularly for those engaging in more vigorous physical activity is available on the following website: http://www.runsweet.com Adult DKA protocol http://intranet/ccc_nhsg/6179.909.html?pMenuID=460&pElementID=909 Paediatric DKA protocol http://www.bsped.org.uk Section D: The ‘standard’ guidance of blood pressure management as described by the British Hypertension Society applies to all patients. http://www.bhsoc.org/Latest_BHS_management_Guidelines.stm Management specific to diabetes is contained in NICE clinical guideline 66 The management of Type 2 diabetes Section 1.8 http://www.nice.org.uk/nicemedia/pdf/CG66NICEGuidance.pdf General guidance on cardiovascular risk reduction is covered in depth in JBS 2: Joint British Societies’ Guidelines On Prevention Of Cardiovascular Disease In Clinical Practice (Prepared by: British Cardiac Society, Diabetes UK, British Hypertension Society, HEART UK, Primary Care Cardiovascular Society, The Stroke Association) http://www.bcs.com/download/651/JBS2final.pdf Management specific to diabetes is contained in NICE clinical guideline 66 The management of Type 2 diabetes Section 1.9 http://www.nice.org.uk/nicemedia/pdf/CG66NICEGuidance.pdf Grampian formulary for most recent advice on lipid lowering therapy www.nhsgrampian.org/grampianfoi/files/Statin_statement_October2007. pdf 182 Draft Guideline – 25 September 2008 Joint statement on the use of lipid regulating drugs in Grampian - March 2009 http://www.nhsgrampian.org/nhsgrampian/GJF_general.jsp?pContentID=4756 &p_applic=CCC&p_service=Content.show#m.nh Lipid Management specific to diabetes is contained in NICE clinical guideline 66 - The management of Type 2 diabetes Section 1.10 http://www.nice.org.uk/nicemedia/pdf/CG66NICEGuidance.pdf Contact details for Podiatry Department for foot screening training: www.diabetes.nhsgrampian.org SIGN 103 Diagnosis and Management of CKD http://www.sign.ac.uk/pdf/sign103.pdf For further Information and a guide to the management of CKD see www.renal.org/CKDguide/ckd.html. An eGFR guide is also available at http://www.renal.org/eGFR/. 183