aleena MBBS PRE-CLINICAL CPH/PPD/PSAH NOTES By Murtaza Kadhum -1- Contents SEM 1 & 2 3 SEM 3 18 SEM 4 39 -2- SEMESTER 1&2– PPD Consent Patient must not be pressured into making a decision either from family or from the doctor. They must be given the opportunity to say ‘no’. -3- Consent means a voluntary, un-coerced decision made by a sufficiently competent or autonomous person on the basis of adequate information and deliberation, to accept rather than reject some proposed course of action (Gillon 1986) Valid consent Information Voluntariness Competence COMPETENCE: Mental Capacity Act 2005 requires the following from a patient when making decisions about treatment: 1. 2. 3. 4. Patient must understand Retain information Weigh up information Communicate their decision INFORMATION: GMC says the patients must understand in broad terms the nature and purpose of treatment and should be aware of any significant risks. This is enough to avoid battery. VOLUNTARINESS: Free choice important here, free of coercion or undue pressure or perceived coercion. Importance of consent: • • • • • Legal requirement Respect patient autonomy Respect for persons Establishes relationships of trust with patient Benefits patient a. Subjectiveness of ‘benefit’ (e.g., Jehovah’ Witness) b. More realistic expectations (pt. feels they are in control) c. More co-operation (e.g. they will fast before surgery) If a patient refuses beneficial treatment, the doctor must assess if the patient is COMPETENT and is giving VALID CONSENT. COMPETENT ADULTS CAN refuse a life-saving procedure, even if this may appear irrational to the doctors. E.g. woman refusing life-saving treatment even if her foetus dies (surely irrational?) but her decision counts -4- Exceptions where consent not needed: • • Necessity: Where treatment is best option and patient is NOT COMPETENT to give consent Emergency: Dr must act (e.g. ambulance brings patient hospital in A&E) to prevent harm Children and when patients pose risk to others (TB) Introduction to Ethical Practice When making PRActical decisions consider: • Moral Perception – consider ethical dimensions which may not be apparent at first sight Moral Reasoning – The 4 principles: Autonomy – respecting the decision-making capacities of autonomous persons; enabling individuals to make reasoned informed choices (TRUTH/CONSENT/CONFIDENTIALITY) Beneficence – this considers the balancing of benefits of treatment against the risks and costs; HCP should act in a way that benefits the patient Non-maleficence –avoiding the causation of harm; the healthcare professional should not harm the patient. All treatment involves some harm, even if minimal, but the harm should not be disproportionate to the benefits of treatment Justice – distributing benefits, risks and costs fairly; the notion that patients in similar positions should be treated in a similar manner • Moral Action – actually implementing the ethical practice independently (should do must do) ETHICS: Professionalism Attributes of a HCP: • Belong to an organisation (NHS) Exercise autonomy over their work Pledge assistance to those in need • Possess ‘esoteric’ knowledge – deep knowledge understood by few • • Licensed by state Duties of HCP: • • • Moral duty – is it the correct ethical expression? (guilty) Professional duty – what does the regulatory body say (GMC)? (sacked) Legal duty – is it within the boundaries of the law? (jailed) MODELS OF HEALTH & DISABILITY Consider the bio-psycho-social model when interviewing patients with a chronic illness or a disability as this may be a particularly relevant to their condition/lifestyle. Also consider patient-orientated care e.g. GP, district nurse, family/carer etc. – Primary Care Team CONCEPTS OF PSYCHIATRY Stigma (A dynamic process of devaluation that discredits an individual in eyes of others’): Discrimination (having +ve/-ve actions towards someone.) -5- Ignorance (Having slanted views on X people) Prejudice (A +ve/-ve attitude towards someone) Mental Illness – abnormalities of behaviour (related to abnormal/distressing experience). Types of mental illness: Organic: physiological explanation e.g. multi-infarct dementia and Functional: no real explanation, e.g. anxiety Organic leads to Psychosis – Unable to distinguish between reality and fantasy. Insight impaired. Hallucinations. Functional leads to Neurosis – You can make the distinguish between the reality and fantasy. Intact insight. Anxiety, low mood, obsessions. Felt stigma you feel that people discriminate against you because of your illness, and the perceived social rejection. Disabled individual at an interview may feel he is discriminated against, but isn’t. Enacted stigma when you are actually discriminated due to your illness and the social rejection it involves. Disabled individual at an interview is discriminated against. Adv/disadvantages of classifying mental illness: Advantages – Frames problem, therefore can aid diagnosis. – Prognosis – Guides treatment (e.g. CBT, REBT) – Aids communication (e.g. in court, Helps explain to patient or family) and encourages concordance. – Research purposes – Demystify mental illness/challenge stereotypes by normalising in comparison to other health problems. Disadvantages – Detracts from personal issues (Holistic approach) – Stigmatisation/labelling – Not always possible to classify (no 2 people have all symptoms). Spectrum of diseases is present. – Blame (people faking symptoms) ETHICS: Children Minor – A patient below the age of 18 Consent for children • Gillick (Fraser) competence for consent to treatment if <16 yrs old. Child understands… – Benefits, risks and complications (e.g. of treatment failure) of that treatment option, another other treatment options, inaction. – BUT parent can override <16yr old refusal to treatment -6- EVIDENCE AND PRACTICE The International Statistical Classification of Diseases and Related Health Problems 10th Revision (ICD-10) is a coding of diseases and signs, symptoms, abnormal findings, complaints, social circumstances and external causes of injury or diseases, as classified by the World Health Organization (WHO). GMC – a legal body which deals with complaints about doctors (police) Gives doctors general guidance on practising medicine and outlines the duty of a doctor, register the F1 doctors, to ensure the public receive suitable care. Although guidance produced by the GMC creates no legal duty, it does carry weight in law and the Courts have recognised the importance of such guidance. BMA – group of doctors, philosophers, lawyers, theologians and lay people (family) The BMA has a medical ethics department that answers individual ethical enquiries from doctors, and produces guidelines and books on ethical issues. PSYCHOLOGY OF MEMORY/LEARNING Three stages of memory: Encoding (putting info in memory) Storage (maintaining info.) Retrieval (recovering info.) Atkinson-Shiffrin Model (1968) for the structure of memory STM: working memory is a temp store, decays rapidly, refreshed by rehearsal. No changes to synapses. LTM: requires consolidation, long term store, decays slowly, changes top synapses occur. Short Term Memory: • Need to attend to a stimulus • • Encoding occurs but limited capacity chunks Info is active when conscious • Can last for life, large capacity. • • • Requires consolidation of info Involves the hippocampus in the brain Info needs to be retrieved Long Term Memory: Retrieval may require cues. At the point of encoding, if you repeat and organise the info to be stored, it is more easily retrieved. Being in the same context also helps (same place, emotional state). Forgetting is decay, displacement, retrieval failure or interference. -7- Implicit memory (non-declarative/procedural) e.g. motor skills “draw the shape” - MEMORY FOR SKILLS Explicit memory (declarative) e.g. verbal skills “describe the shape” - MEMORY FOR FACTS There is different memory for facts (explicit) than skills (implicit). In amnesia motor and perceptual skills are preserved. Semantic knowledge (general knowledge) is spared but episodic memory (personal) is disrupted. Anterograde: inability to learn new things, whilst retrograde: is inability to remember old memories before the injury. Patients are more likely to remember when: • • • The information at start and end of consultation Statements which are perceived to be important by patient When total amount of info is less to remember • • • When short words and sentences, and no jargon is used. Material is organised and repeated Higher IQ Classical conditioning(Learning by association) Acquisition Reinforcement Extinction Spontaneous recovery generalisation Unconditioned stimulus usually leads to an unconditioned response passively. A conditioned stimulus (when a previously neutral stimulus – a sound – is associated with unconditioned stimulus) will lead to a conditioned response (learned response to previous neutral stimulus. E.G. Patient attending hospital for chemotherapy becomes nauseous on just entering hospital. Classical conditioning can be intervened by systematic desensitisation. This is quite obvious, and an example can include a gradual exposure. E.g. arachnophobia – you would present small spiders, and as the person becomes more confident you get a larger spider and so on. Operant Conditioning (operate) (learning by consequences) Behaviour that becomes more or less frequent depending on the stimulus that follows it. E.g. Patient in need of social interaction visits GP frequently, if the GP provides the social stimulation. STRESS, ILLNESS & COPING Stress and disease: • People under stress alter their behaviour, which affects their health for example by taking up risky behaviour as a type of coping mechanism e.g. smoking. • Stress may influence perception of symptoms and complaint behaviour leading to higher levels of medical consultations and detection of disease. Stress (Situations that the average person would appraise as threatening and exceeding his ability to cope. Traumatic stress involved real physical threat of serious injury or death like combat. Non -8- traumatic stress is threat to social self, self identity, self esteem or confidence like bereavement or poverty), a distinction needs to be made between: • stressors - external events that may cause stress (e.g. life events, daily hassles, chronic stressors). • stress responses – behavioural, emotional, cognitive, physiological responses to stress strain - the effect of stress on a person. ...Because stress is poorly defined and used to mean a lot of things. Can also help with understanding responces and creation of theories. Also aids communication between individuals or for teaching lay or professional people. Theories to the approaches to Stress: 1. The General Adaptation Syndrome – focuses on the response to stress Alarm, the fight or flight response mobilises the body to defend against the stressor. Resistance, if the stress continues, the body goes into a stage where arousal remains high and the body tries to defend/adapt to the stressor Exhaustion, where physiological resources are very low, the ability to resist may collapse, and disease or death may result -ve: stresses of same magnitude (milk gone=no phone battery=ran out of food i.e. all stresses same) -ve: does not consider cognitive appraisal of a person’s response to stressors e.g. Person A knows there is an escaped criminal and Person B does not. They live separately. There is a noise in the garden of both Person A and B. Person A is more alert and scared as they are aware of the existence of an escaped criminal, whereas Person B does not know this information. So, Person B is not alarmed by the noise. 2. Life Change Model / Life Events approach – focuses on stress as a stimulus Accumulation of life events and continuous adjustment is then thought to have an effect on health. To measure stress, you can count the number of events that have occurred in a period to an individual. Examples of life events are death of a spouse, divorce, marriage, retirement, a new family member, changing jobs, injury or illness etc. Research has found that life events are associated with many illnesses, such as heart disease, cancer and depression. Questionnaires which the patient ticks on a scale and then if the overall rating is high, then this predisposes the person to conditions. -ve: (milk gone does not = the same stress as no phone battery...I can grade individual stresses) -ve: not all events in the list are bad, divorcing wife may be a good thing. 3. Transactional Model – focuses on stress as an interaction between the person and the stressor The demands do not match the resources. Perceived demand of the stressor can be balanced by person’s ability to cope. Ability to cope can include coping strategies, changes in personality or support. When perceived demands outweigh perceived resources this results in the psychobiological -9- stress responses. The individual then tries to cope and the results of these efforts may affect the stressor, or the perceived demands and perceived resources. - 10 - For example, examinations are stressful for most university students; a student who copes by revising thoroughly will be more confident in their ability to pass so the exams will appear less threatening. In contrast, if a student copes by avoiding thinking about the exams and not revising or preparing for them, then the threat of the exams will increase as they draw nearer. -ve: Doesn’t account for sudden stressors e.g. Knocking over a pan of boiling water. Lack of empirical evidence. • Cognitive behavioural therapy (CBT): Help person to SEE the thoughts that accompany –ve emotions/behaviour, e.g. make them keep a diary. Coping (constantly changing effort to manage external and internal demands, that are appraised to be exceeding the resources of a person. You can do this by reducing demand, increase resources or dampen stress responce by e.g. medication) How individuals cope with health events is very varied and is affected by differences in the type of health event faced, the course, prognosis, and individual differences in resources and coping styles. Individual differences in coping style are typically divided up into: • • Problem-focused coping: coping with the stressor itself. Emotion-focused coping: coping with the emotional reaction to the stressor. Acute Health events: • Extent of stress determined by novelty, predictability and controllability. • If a stressor is novel, unpredictable and uncontrollable, then a larger stress response will be elicited. E.g elective surgery vs car accident. Chronic Health events: - 11 - • ‘Crisis’ model: after being diagnosed with a chronic illness, individual loses their social status (you can’t work etc.) – • • This can lead to ‘biographical disruption’ (bad) or ‘negotiation’ (good) Biographical disruption – Enacted stigma: occurs when a person experiences actual abuse &/or discrimination (finger pointing) – Felt stigma: When a person feels he is being discriminated against when actually he is not. – Different conditions have different social meanings. E.g. cirrhosis means alcoholic – Therefore these conditions hold stereotypes – Impairment or disability (e.g. HIV) leads to restriction in activities and social roles (due to recurrent infections). This then leads to negative labelling, which is enforced by negative social stereotypes transmitted in everyday life or media such as drug users (for HIV). This will diminish patients self esteem and cause felt stigma, leading to isolation and withdrawal from social life which eventually causes a lack of confidence and loss of skill. Negotiation – Person has difficulty maintaining ‘normality’ with time – BUT they refuse to accept labelling and stigmatization; they preserve their identity When faced with the demands of chronic illness, patients have to make large adjustments (Moos & Schaefer). They need to: • • • • Adjustment to symptoms and incapacities of illness Adjustment to treatment procedures and hospital environment Developing and maintaining relationships with health care providers Preserving a reasonable emotional balance • Preserving a satisfactory self-image and a sense of competence and mastery (POSITIVE THINKING) Sustaining positive relationships with family and friends Preparing for an uncertain future. Type A Behaviour – (Pissed off) – Hostile/Impatient/competitive (learn these exact words) Leads to higher risk of CHD Type B Behaviour – (Relaxed) – Self-evaluative/imaginative/creative (learn these exact words) INTRODUCTION TO HEALTH PSYCHOLOGY Psychology ( ) is the formal study of normal and abnormal behaviour using systematic measurement and experiment, among representative samples. Health psychology addresses psychological influences on and consequences of physical illness. It has a role in prevention (changing health behaviours such as less smoking), consequences of illness (e.g. assessment of these) and treatment (e.g. psychological therapy like counselling). Models of health & illness: - 12 - Bio(medical) model: Health and illness can be explained purely by disturbances in physiological processes (e.g. resulting from injury or biochemical imbalances) Bio-psycho-social model: Health and illness affect and are affected by physiological, psychological (e.g. coping mechanisms) and social factors (e.g. social norms). The most common research methods are: Randomised controlled trails(RCTs) – e.g. effect of stress management training on pain reduction Longitudinal surveys (e.g. do higher levels of physical activity in pregnancy prevent the onset of depression – following a group throughout a period of time) The typical measures are: • Cognitive tests (IQ ) • Observation ( e.g. hostility in patients) • Biological markers (cortisol) Main Areas of study Health/Clinical : psychological illness (‘socially unacceptable behaviour’) Developmental : psychological development (studies how we change with time) Neuropsychology: behaviour and neurology (the brain and diseases associated) Social : interaction between individuals Cognitive : human information processing (IQs etc) Occupational : psychology in the workplace (e.g. reducing absenteeism) Health Psychologist are often Clinical Psychologists who specialise in helping individuals who are suffering from psychological consequences of physical illness or who need psychological help with managing a physical illness. GP’s refer patients to these if patient has anxiety or depression. INTELLIGENCE Intelligence is the general ability to understand and use information, to think logically and adapt to new situations. Intelligent Quotient (IQ) is the index of intelligence derived from intelligence tests. Performance on these may be improved by confidence to do well, familiar with concepts of exam and materials used. Heritbility: the proportion of variation in intelligence attributed to genetic variation in the population (usually 0.4-0.6) Clinical uses of IQ tests: • Assessing intellectual impairment following trauma. • Assessing intellectual impairment associated with disease processes. • Diagnosing and quantifying extent of learning disabilities. Seven domains of intelligence: Spatial Interpersonal - 13 - Bodily Kinaesthetic Linguistic Logical Intrapersonal Musical Intelligence can be determined by the following: • • • • • • poor childhood nutrition exposure to environmental toxins (lead) exposure to certain drugs in utero (alcohol, cocaine) lack of exposure to an intellectually stimulating environment in childhood neurological injury or disease genetic disorders affecting brain development LAY HEALTH BELIEFS Lay-health beliefs are beliefs which the lay public hold used to account for their material, social and bodily circumstances. They are based on knowledge and from information passed on from word-ofmouth, general knowledge, professionals and other areas. (Stacey 1988). The Public Health White Paper – ‘saving lives: Our healthier nation’ (1999) was produced by the DoH and described that patients have an active role in implementing lifestyle decisions which affect their health. Sociological conceptions of lay-health beliefs 1. Health as functional capacity (Blaxter 1982) i. ‘Health is the absence of disease’ as well as ‘health in disease’ (Blaxter 1990). ii. Largely a working class conception, but also found in those with chronic ill health, who were less likely to define health in terms of illness. iii. Being able to fulfil social and work roles is the main criterion of healthiness iv. ‘Never having a day’s illness’ is used as a (positive) moral individual characteristic. v. Seeing ‘health as coping,’ related to this health is the idea of health as ‘reserve’, as a ‘cheerful stoicism’, even when physically ill. 2. Disease as candidacy (Davidson, Davey Smith & Frankel 1994) i. Used in lay health beliefs of relative risk of disease and effectiveness of preventive health behaviours ii. Constructed from the appearance of the person and the circumstances surrounding the event iii. Can support or challenge biomedical aetiology iv. Identification of those ‘disease candidates’ retrospectively and/or predicatively i.e. “He was fit, skinny and young...He was the last person you would expect to have a heart attack” v. This is essentially teleological explanation of illness i.e. “there was a meaning or purpose underlying his/her illness” - 14 - Zola (1973) – five decisions which trigger seeking medical care, emphasises importance of lay referral system People actively seek information from both multiple professional and non-professional sources. New technologies may extend and enhance the lay referral system. For example, it has been found that with information sourced from the Internet, people often make a provisional self-diagnosis that could be confirmed by telephone consultation (i.e with a nurse via NHS Direct), and so do not ‘have to waste the doctors time’. This last finding demonstrates that in many ways that certain cultural assumptions and values around the sick role continue to prevail. So for example, callers to NHS Direct were found to be eager to preserve their status as ‘deserving patients’ i.e not to use up resources unnecessarily. Expert Patients Initiative (DoH 2001) aims to recognise the intimate (and rational) knowledge and experience that patients have of their illness, and encourages patients to take an ‘active role in their own care’. This in principle will lead to the development of ‘user-led self-management programmes’ concerned to increase patient ‘self-efficacy’ and enable them to take more control of their chronic illness condition. • Understanding the ways in which lay beliefs differ from the clinical perspectives of HCP’s help us to communicate more effectively and encourages concordance. • Understanding lay beliefs regarding health maintenance and disease prevention is important to health education. • To understand health seeking behaviour. - 15 - LOSS, BEREAVEMENT, GRIEF • Loss is important only if it is something to which we are attached • The attachment gives us some security • this may include the security of self esteem Loss can be applied to things other than just people. Loss is an inevitable part of life, some people cope with it better than others, others find role change very difficult and some experience severe loss of self esteem with role change. Loss – The state of being deprived of something or someone one has had Grief – The painful emotions associated with bereavement: sadness, anger, guilt, shame and anxiety. Mourning – Psychological processes triggered by loss and process of recovery. The act of expressing grief. Bereavement – state of having lost someone or something to which one is emotionally attached. The closer one is with someone, the more vulnerable that person will be if they experience bereavement. Acute Response to Grief – includes crying, hallucinations, agitation, aimless actions (up to 6 weeks) Longer Term – social withdrawal, sleep disturbance, depressed mood (last 3 – 12 months) Stages of grief: STAGE 1 – numbness, shock, (DISBELIEF) STAGE 2 – Anger STAGE 3 – Yearning and searching(hallucinations) STAGE 4 – depression STAGE 5 – Acceptance / reorganisation of mental model of world. Pathological grief: Absent grief – Failure to display symptoms of grief – may result in ‘delayed’ grief or anxiety problems. Prolonged grief – initially seems normal LIKE NORMAL GRIEVING. Intense grief persists and is distressing and disabling. Disabling symptoms at high levels, persisting at least 6 months after death and associated with functional impairment. Immune response to bereavement includes HIGH levels of ACTH & Cortisol and reduced levels on Natural Killer (NK) cells. Therefore there is vulnerability of the immune system and increased stress. Therefore there is increased physical health morbidity, consultations, medication and hospitalisation. - 16 - Mortality after bereavement is higher due to : Change in usual health practises of individual, neglecting of early signs of disease, unstable management of chronic diseases like diabetes, alcohol and drug abuse and loss of care by the deceased. Also self harm or suicide. HEALTH BEHAVIOUR Health behaviours consist of any behaviour that has an impact on health, whether positive or negative. Several models have been proposed to try and account for health behaviours: • Health Belief Model (HBM) • Theory of Reasoned Action (TRA) • Cognitive Dissonance Theory Health Belief Model: *Family hist? How bad the disease is? * • Advantages – Identifies physical barriers (cost/travel/withdrawal) and their importance – Compares ‘power’ of different factors, e.g. cue > cost Disadvantages – Doesn’t explain irrationality in health behaviour (delay in obtaining medical advice following symptoms) – No mention of emotion & habits – No mention of social factors (e.g. If your main social is going to the pub) – Doesn’t explain all health changes (exercising for 6-pack vs reducing CV disease) – Threat does not always predict behavior change for many health behaviors e.g. smoking. Theory of Reasoned Action/Theory of Planned Behaviour: - 17 - – – – – Individual attitudes: your own beliefs about health behaviour & knowledge of consequences (e.g. I’ll be fine if I reduce my drinking a little) Social influence: Beliefs about others’ opinions (e.g everyone knows I drink) Perceived control (often wrong): How much control people think they have. (I am confident I can control my alcohol intake) All these affect intention and this will influence Behaviour (e.g. To control consumption of alcohol) Advantages: Identifying perceived control Identifies social norms Disadvantages: People don’t always do what they intend (especially habits) Doesn’t take into account addiction (no barriers), habits or beneficial factors such as social support. Doesn’t take into account future (anticipatory regret) Different morals determine different behaviours Cognitive Dissonance Theory (Prime Theory): Cognitive dissonance Theory: ‘guilty feeling’ or dissonance when 2 cognitions are in conflict Example: – Cognition 1: I am a heavy drinker – Cognition 2: drinking excessively is bad for health - 18 - An example would be someone who is alcohol dependent and who holds the beliefs that 1) drinking excessively is bad for the health and 2) he/she is a heavy drinker. The resulting dissonance might be reduced in several · Changing one or both cognitions: e.g. convincing yourself that you feel much better when you are drinking, that the benefits outweigh the costs and that you do not drink as heavily as many people that you know. · Eliminating one or both cognitions: e.g. Convincing yourself that the dangers of drinking are exaggerated. · Avoiding thinking about the cognitions: e.g. Avoiding discussing your drinking problem. · Adding a cognition that allows the two conflicting cognitions to be reconciled e.g. 'I will reduce my drinking in the new year' or 'I am addicted and it is out of my control'. · Changing behaviour e.g. Reducing alcohol intake Advantages: Easy to use in practice, making someone guilty (cognitively dissonant) is easy all you have to do is add a cognition, used in counselling. Disadvantage: no social/emotional factors or barriers, purely individual and cognition focused. RISKY HEALTH BEHAVIOUR • Epidemiological approaches are based on risk assessment/analysis i.e. calculate the damage by behaviour (e.g. smoking 1 pack a day = life shortened by 10 yrs) • Disadvantages – Assumes risk is controllable (e.g. I could give up smoking tomorrow) – Doesn’t take into account immeasurable social factors (e.g. how many friends have to be smokers before you start) – Assumes that all risk is down to the personal choice (e.g. it’s your fault you took E in the club, despite the fact everyone was on it) – Statistically significant, but silly associations (e.g. single mothers are most likely to smoke…why?) Sociological & social-psychological models to explain risk behaviour: • • Cognitive social psychological models = focus on i) social cognition & ii) choice in behaviour. – Utilise the principles of social cognition to emphasise the character of risk behaviour. – This approach privileges an individual’s perceptions or beliefs over group influence – Examples are the Health Belief Model and the theory of reasoned action. Disadvantages… – Separate social & cognitive components in risk behaviour - 19 - • • – ignore the affective component of behaviour – – Assumes risks are outside of social context Explains the benefit to individuals of doing risky health behaviour e.g. risking HIV infection to gain intimacy with partner. This is called situational rationality – assumes risky health behaviour is rational to an individual given the immediate social situation, however risky to their health in long term. – Assumes a type of economic rationality in decision making, a weighing up of all the costs to see if the benefits of that behaviour is worth the risks. However risks may be unconsidered (taken for granted aspect of daily life), especially since behaviour is social and involves others Cultural theory of risk = recognition of risk is based on culture – Variations in risk recognition, assessment and response is seen to reflect the differential socialisation in cultures and within social institutions. – This theory emphasises the point that what society calls risky is determined by social and cultural factors. – E.G. Pigs are considered as dirty animals Phenomenology (2 parts) – Unconsidered risks: taken-for-granted understanding ( e.g. unprotected sex or only elderly get cancer.) – Assessment of new risks: weighing benefits against risks in novel situations (e.g. I haven't tried that drug, how safe is it?) - 20 - SEMESTER 3– CPH/PPD, PSAH - 21 - WHISTLE BLOWING AND MEDICAL ETHICS Errors and mistakes are usually systemic, and they are rarely one-offs or due to poor performance. Errors are made by everybody. It is important to get over the blame culture so that mistakes can be identified are where relevant, be reported to agencies. Best solution is for systemic improvement such as clinical governance (E.g. less work hours by EU), adopt safety culture and remove blame culture. Clinical negligence has legal components: Doctor has DUTY OF CARE (Doctors have this towards anyone with whom they have a doctorpatient relationship, easy established, NHS trusts have a duty to provide a good service and GP’s have a duty to help people in their practise. However are sued directly) Duty of care was BREACHED (to evaluate this, we need to know what the standard duty of care is... refer to bolam and Bolitho) Breach of duty of care caused HARM (Injury/death caused by many factors, causation is easy to prove but proving the doctors negligence was the cause is harder. An omission is even harder to prove. “But for” test used “but for the defendents negligence, would the patient have suffered the injury”. Bolam v Friern Barnet Hospital Management committee [1957] 2 All ER 118 According to Bolam a doctor is not guilty of negligence “if he has acted in accordance with a practise accepted as proper by a responsible body of medical men skilled in a particular art”. Bolitho v City of Hackney Health Authority [1996] 7 Med LR 1 It follows the Bolam test for professional negligence, and addresses the interaction with the concept of causation. A doctor is not guilty of negliegence if his actions have a “logical basis”. Therefore, the rationale behind choices by doctors is s scrutinised. If negligence is proven, then damages are awarded for both physical and mental harm as well as loss of earnings. Keeping notes and records as a doctor can be brought up in court in order to assess the quality of the doctor (Expertise of doctor also looked at, inexperience is not). Courts look at notes as a discrete heading in proceedings. Patient notes must be written appropriately (Inclusion of consent, treatment, management and any changes, legibility, correctly dated etc.) so that if the patient were to access the notes, there would be no problems or complaints. If you sign a prescription (even on the advice of another) you are legally responsible Four-fold duty to check: • correct patient name and drug name - 22 - • no comparative or absolute contraindications • correct dose and directions given • make provision for appropriate monitoring and follow up The limitation period – action alleging negligence to be brought within 3 years of claimant discovering damage. In case of neonates, period does not start until 18 (until 21). Guidelines by definition are not rules, however, if a doctor departs from them, they must be able to justify why. In 1998, the GMC stated that doctors should report underperforming colleagues, but this naturally causes conflicts. It may be that colleagues who are potentially underperforming rather than actually underperforming that are disclosed. The next issue after identifying a colleague is the person/organisation to disclose this colleague to. Court costs NHS a lot.. NHS redress act introduced aimed at anything below 20k, therefore reducing costs and moves away from blame culture. Legal action taken more often if: Poor rapport, poor comm, failure to apologise/explain. A culture of litigation has resulted in the development of “defensive medicine”. This is “The practice of performing tests as a safeguard against possible malpractice liability rather than to ensure the health of the patients” Defensive medicine is generally: Largely an unstable explanation for action Makes litigation more likely (extra tests, treatment etc. An act can be proven more easily for negligence than a omission. Saturates resources, so people who may actually benefit from them do not. Very expensive and incurs financial burden to the NHS, who already has a limited budget. THE ETHICS OF DISTRIBUTION About 15% of taxpayers’ money (7.5% of GDP) is invested into the NHS. After the 2007 Comprehensive Spending Review, the expenditure for healthcare services was prioritised for: cleaner hospitals, greater GP access and innovation within the NHS. Resources invested to the healthcare are not always financial and also include: time, energy, bed spaces and personnel. When making a decision there are at least three layers to consider: Macro – how the overall cake is cut Midi – how the healthcare budget is allocated Micro – how clinicians are paid and how much money is spent on individual patients Questions of allocation of resources involve a range of ethical considerations including fairness, respect for individual autonomy, responding to individual need and benefiting the whole population. Difficult choices have to be made where pressing claims are made upon a limited budget. For example: - 23 - • Those who are young and have a longer expected time of survival with treatment? • Those who are parents with dependent children? • Treating a greater number of patients rather than fewer patients with a greater need? • Treatment that prolongs life or treatment that improves the quality of life? • Established treatments rather than experimental treatments? Recall the four principles Justice, Beneficence, Non-maleficence and Autonomy. Justice [distributive] ≡ Equity ≡ Fairness John Rawls puts forward a concept of a ‘veil of ignorance’ in his theory of justice. In this theory you are faced with a range of societies to live in. The only catch is that you do not know which position you hold in that society (status or wealth i.e. if you were old, a pregnant woman or a child). Rawls claims that most rational people would choose the society where the people who are most disadvantaged would be as well off as possible, so that if they turned out to be a disadvantaged person, they would have good treatment. The Human Rights Act 1998 has several acts, which can be linked to allocation of healthcare: Article 2 states that there is a ‘right to life’. There is a positive obligation upon the State to ensure that this right is respected. The positive obligation under Article 2 must be interpreted in a way that does not impose an impossible / disproportionate burden on the authorities. Therefore, although the State cannot be expected to fund every treatment, it must act reasonably in allocating resources. Article 8 right to private life Article 12 right to marriage and children A refusal to fund medical treatment because of the advanced age of the patient could be a breach of Article 2 and Article 14 (prohibition of discrimination). Article 14 would also be relevant where resources are not allocated for treatment on the grounds of gender. Different approaches to rationing: • QALY stands for Quality Adjusted Life Year. Let us first consider what the unit of QALY indicate: 1 QALY = = = 1 year of perfect health 2 years of half perfect health 4 years of quarter perfect health When a patient is ill they have a rating of less than one, and any change in their health is reflected as either a rise or fall in the rating. The general idea is that a high priority health care activity is one where the cost per QALY is as low as it can be. Also cost-effective analysis is important when choosing different methods of treatment. Allows for maximisation of utility and benefit from a limited health care budget, but could ignore need. Also puts a price on life, which is potentially unethical. It also requires calculations to give a - 24 - value on health, however different treatments affect people differently and therefore these values may be inaccurate. • The libertarian free market by Nozick says “taxation is slave labour” and there should be no resources to redistribute. But this may exclude the poor from treatment, discrimination(gender, lifestyle), inefficient (insurance company bureaucracy) • Lottery. Allocate using a lottery, everyone treated equally and no discrimination. Does not take into account need, cost effectiveness and responsibility. • Allocate resources based on need. But is it too simple? How will you define need? Cost effectiveness? Social worth. Allocate resources on basis of contribution to society. But this ignores need... Who decides? Discrimination possible also. • • Personal responsibility. Allocation of resources on basis of life style. Idea that people are responsible for their health and this gives an incentive for them to behave wisely. However, not all choices are free (e.g. habits or addictions), this method may be too harsh and lead to more judgemental doctors and it expects a high level of morality from imperfect human beings. • Democracy. Allocate resources by a democratic voting system. There is a chance of discrimination, especially when not everyone in population votes. General public are not specialists in health care and therefore this may lead to bizarre decisions such as in America where tooth capping was prioritised ahead of appendectomy. Challenging rationing very rarely goes to court, most common type of challenege: • Irrational or unreasonable rationing decision • Procedural impropriety in the decision making process RACE & ETHNITICTY IN HEALTH AND ILLNESS Ethnicity generally relates to some form of distinctive set of cultural characteristics. These can include common geographical and ancestral origins, language and cultural traditions. However, often other shared characteristics such as nationality, migrant status, religion and ‘race’ are used as substitutes for ethnicity. There are two implicated concepts of ethnicity in use in the health care context: – Ethnic group is self-perceived identity and membership of a social group. This is a conception widely used in survey research including the ethnic monitoring now being carried out within the NHS. – Ethnic origin is to do with a common ancestry or place of origin. This conception thus focuses the question of ethnicity back in time and conveys a historical and frequently geographical context. However, classificatory problems arise with this conception of ethnicity in relation to second- and - 25 - third–generation people whose parents or grandparents came to Britain from elsewhere but who themselves were born, educated and socialised here. This approach assumes that ethnic boundaries are fixed and clear, yet in practice such boundaries are frequently fluid and imprecise. Ethnic groups have been and often remain the ‘other’ - an identifiable group or groups who may be blamed for problems within a society or community; who also carry the weight of undesirable moral, physical, social, cultural characteristics or conditions and may be stigmatised e.g. ‘dirtiness’/unclean-ness, diseases such as syphilis or AIDS, TB or leprosy, ‘immorality’ or ‘ignorance’ Culture - sets of beliefs and ideas that a social group draws upon in order to identify and manage the problems of their everyday lives. [How does one define problem? Everyone is different and deals with situations differently] Both ethnic and cultural boundaries may be constructed and maintained by social groups themselves (due to pride of a sense of identity). The label of ethnic difference is more usually imposed by the dominant groups in a society, who construct minorities as the ‘other’. `Race' like ethnicity is also a social construction which has no distinct genetic basis. The purpose of ethnic monitoring is to enable the NHS to achieve an equitable provision of services, without racial or ethnic discrimination. However, problems emerge when putting both the concepts of race and ethnicity into operation. This process essentially constitutes ‘reification’ (making an abstract concept concrete or real) of ethnic origin producing a set of categories, for example `Other Asian’ or `Other Mixed Background’, which are purely artefactual and have no meaning outside the world of health needs planning. However, ethnic monitoring does potentially have an important role to play in a national screening programme for sickle cell disease and thalassaemia major Health professionals need to be sensitive to cultural differences, as well as to the complexities and dynamics of ethnicity. Such knowledge can provide doctors with essential information about a patient’s beliefs and practices as they pertain to health and health care (for example, it may be easier to talk to people about making changes in their diet if the doctor understands whether the avoidance or consumption of particular foods is religious or cultural). Awareness of cultural difference can serve to challenge the stereotypes that can all too easily slip into a clinical assessment of a patient (e.g. asian women have problems with communication). Professional cultures and institutional practices in health care can play an important role in reinforcing and constructing norms of patient behaviour. It is usually ethnic minorities who are all too often identified as those groups falling outside of these norms – termed ‘institutional racism’. (E.g. higher rates of sectioning in psychiatry in minority groups) SOCIAL INEQUALITIES IN HEALTH The bulk of the inequality witnessed throughout human history results not from biological differences, but from social differences existing between individuals and social groups, and results from the structured social divisions of a particular society at a given time – social stratification. Socio-economic class is used to investigate the effects this stratification may have for different social groups e.g. unequal ‘life chances’. The socio-economic model of health adopts the broad position that social inequalities in health reflect differential risk exposure across the lifespan. This relative health risk is primarily associated with an individual’s socioeconomic class position (see flowchart in lecture). - 26 - The Black Report (1980) examined the association between social class and health, and indicated death the rate of disease incidence (morbidity) and the rate of incidence of death were not randomly distributed throughout the population. The report identified a number of types of possible explanation for this finding: • Artefact – health results are a result of individual behaviour (coding and human errors also) • • Social/Health selection – those with poor health are downwardly mobile Behavioural/cultural factors – focus on class differences in health beliefs and behaviour. Also people with low class more likely to smoke, drink and have poorer nutrition. • Material circumstances – social differences in income(which continues to widen due to e.g. taxation that favours the well off), diet, housing and stressful working environment as key determinants of inequalities in health The report found that it was primarily material circumstances that were the main cause of social inequalities in health. The main differences in health outcomes that currently exist between social classes in the U.K. are that: • Life expectancy is increasing for every social class. However, it is increasing faster in the higher social groups. • Mortality and morbidity has decreased for every social class. However, mortality rates are much higher in lower classes than higher e.g. rates are 4x higher in lower 10% compared to upper 10%. • The social class gradient of mortality and morbidity in Britain holds for most disease classifications. The gap in inequality, has been reduced in terms of the absolute number of deaths involved. However, the gap in health equality in relative terms, has become larger. In 2001, a worker in a routine or manual occupation was twice as likely to die before the age of 65 than his manager, but in 2008 that ratio had risen to 2.3 times • • Acheson Report 1998 This showed that since the introduction of the welfare state there was a fall in mortality but the greatest fall in mortality was in upper classes. Thus, some recommended interventions include: Medical Care at level of morbidity to prevent early death. Improve access to healthcare Preventative approaches to change individual risk In workplace to improve psychological conditions, reduce unemployment In social structure to reduce social and economic inequalities, provide good food at cheaper prices, provide better housing - 27 - PHYSICAL ACTIVITY – Benefits, determinants & interventions Physical activity is any bodily movement produced by skeletal muscle that results in energy expenditure. E.g. structured exercises (sports) or lifestyle exercises (walking) Fitness is where an individual possesses a set of attributes that relate to their ability to perform physical activity. Adults are recommended to do at least 30 minutes of exercise for five days in a week, at a moderate intensity [get warmer, breathe harder, heart beat faster, but able to hold a convo] or 75 mins of vigorous exercise [same as above but can’t hold a convo] over a 5 day period. Also, PA to improve muscle strength on 2 days. For children, it is recommended to do at least 60 minutes of exercise every day of the week, at a moderate intensity. Also, vigorous exercise for at least 3 days a week and to minimise sedentary time recommended. Levels of exercise can be measured either by self-report or objectively. Self-report include exercise diaries and questionnaires (Difficult to recall [recall bias] and bias to overestimate). Measuring exercise objectively can include the use of heart rate monitors or step counters (over sensitive at times and expensive). An increase in both PA and obesity can be explained by: • changes in measures of PA • changes in peoples’ awareness of what constitutes as PA. Genetically humans have evolved from hunter-gathers and so should maintain an active lifestyle. Sedentary lifestyles are a recent thing and can explain the recent obesity epidemic, which are both due to patterns of behaviour. Exercising is beneficial: • • • • CVS – reduced risk of CVD, reduced BP, reduced body fat, increased HDL and increased fitness Psychological benefits – reduced depression/anxiety and increased self-esteem Other benefits – reduced risk of cancer (colon/breast/prostate), increased immune function and increased bone mineral density 30% decrease in all cause mortality. There are proposed mechanisms for the psychological benefits of exercise, which include: distraction, thermogenic (due to increased body temp), opioids (release of these which make you happier) and relaxation/stress management (exercise can dampen stress responce). Being able to perform higher levels of physical activity includes: • Male • • • Non-smoker Low BMI Being young Greater belief/motivation/financial(moral) support for physical activity - 28 - Performing physical exercise can occur in several different ways: as an individual (good for flexible hours), group (good for morale), organizational (designated gym time for colleagues at work) or society (PE curriculum), Several techniques can be put in place to help stay committed to an exercise programme. This can either be a contract at the gym, a personal trainer, a weekly/monthly target or a reward. When setting a goal it must be specific to an exercise (FITT – frequency, intensity, type, time). Also relapse procedures must be in place e.g. “If it rains I won’t jog outdoors, I will jog on the treadmill instead.” To change the sedentary behaviour we should: 1. Conduct research at interventions (but this hasn’t been to successfull) 2. Change environment (e.g. target better PE at school, or work or home) 3. Change culture (To exercise will be a opportunity and not a inconvenience? But, how?) PAIN CONTROL AND END OF LIFE Suicide act was made in 1961 which criminalised any aiding, abetting, counselling or procuring the suicide of another. Max sentence in prison is 14 years. Debbie Purdy wanted to know if her husband would be prosecuted for assisting her death. She felt that the director of public prosecution was infringing on human rights by failing to clarify how the suicide act is enforced. This lead to a consultation that found 6 public interest factors against prosecution: 1. The victim had reached a voluntary, clear, informed decision to commit suicide. 2. The suspect was motivated by compassion 3. The actions of the suspect, although sufficient to come within the definition of the crime, were only minor encouragement or assistance. 4. The actions of the suspect was reluctant encouragement or assistance in the face of a determined wish of the victim with suicide. 5. The suspect had sought to dissuade the victim from taking the course of action of suicide. 6. The suspect reported the victim’s suicide to the police and fully assisted them in their enquires into the circumstances of the suicide. • Doctors should alleviate pain, but also balance potential risks of pain alleviation against the potential benefits. • Why worry about pain: Relieving pain is a core duty, relieving pain can allow autonomous decision making, pain is subjective, pain is under treated and is often involved in end of life care. Doctrine of double effect: Established in law in trail of Dr Adams. Explains a distinction between foresight and intention. Benefits are intended but side effects although foreseen are not intended. NB the act must be proportional (you don’t give someone a blatant overdose). For - 29 - example, a patient with terminal lung cancer who is in respiratory distress. Dr gives diamorphone to relieve the distress, diamorphine leads to resp. depression which shortens patients life. Acts vs Ommisions: An act is when you carry out medical intervention. An omission is when you withhold medical intervention. Both may lead to same consequence. Active euthanasia is when a doctor performs an act which leads to death. While, passive euthanasia is when treatment is withheld and leads to death. PAIN: THEORY, ASSESSMENT & MANAGEMENT Pain – An unpleasant and subjective sensory and emotional experience associated with actual or potential tissue damage. The most common medical complaint, reason for self-medication and interrupts all other activities. To fully appreciate pain, one must consider psychological processes in addition to physiological process. Nociception – involves stimulation of nerves that convey info about potential tissue damage to the brain Theoretical approaches to pain: Specificity model – pain is directly proportional to the amount of tissue damage. Pain receptors (nociceptors) would fire and pain would be ‘felt’ in the brain [direct link between cause of pain and the brain]; nociception determining the extent of perceived pain. Also, the idea that specific stimulus has a specific receptor. Patterning theory – pain is a result of patterns of neural transmission, as opposed to one pathway that is unique to pain. This states that there are no specialised receptiors, rather a single generic nerve which responds different to the different sensations by creating a unique code formed by a spatiotemporal pattern. Brain has no role. The limitations of these two theories are that they: • • • Don’t explain pain without damage Don’t explain damage without pain Don’t explain differences in pain perception The Gate control theory (Melzack & Wall) – allows for the influence of psychological factors [e.g. happiness closes gate while anxiety opens it] via a neural ‘gate’ mechanism in the dorsal horn, which modulates the passage of pain nerve impulses from the peripheral receptors to the central nervous system. Large fibres tend to inhibit transmission and close the gate and vice versa. This theory accounts for why severe pain can be experienced without organic cause. Multidimensional model of pain Four component of pain: • • Nociception/detection (the neural detection of noxious stimuli) Sensation/experience of pain (e.g. throbbing, stabbing) - 30 - • • Emotional response to that sensation (e.g. fear, tension) Behavioural response (e.g. limping, grimacing) Biopsychosocial model Focuses on both the disease (pathology) and illness (biological, psychological [Cognitive appraisal of pain] and social factors [activities of daily living, family environment or work history]). Acute vs chronic pain Acute pain (<6 months): Brief, usually after injury – used for survival. Chronic pain (> 6 months): No useful purpose, persists after healing. Risk factors for this include being slow to recover, catastrophizing, depression (in 40% of chronic pain patients), avoidance (fear of pain more disabling than pain itself – not walking because scared of pain) and poor coping. Acute to chronic: Pain (harm), initial psych distress (fear), development of psych problems (depression) and then acceptance of sick role and accommodation to the abnormal illness behaviour. Chronic pain cycle: Pain, immobilisation, disability, loss of self-esteem, depression, social isolation and withdrawal, stress, muscle tension. Measuring pain Pain threshold – level at which a stimulus is regarded as painful. This appears to be relatively stable across people and cultures, although tension and anxiety can affect it. Pain tolerance – the intensity or duration of pain that a person finds unendurable. Typically measured as the length of time a person is prepared to keep their hand in a bucket of ice and water. Pain tolerance is highly influenced by culture, context, and psychological state. Also can measure frequency/intensity of pain, type of pain, level of disability… Pain can be measured either by self-report, by observing pain behaviours or by measuring physiological values. Pain varies along a number of dimensions, including intensity, duration and time course, rate of change and frequency. Response to pain is affected by the events which lead to the pain and the sensation of pain will be variable between different conditions. Self-report measures are the most widely used measures of pain. Simple measures e.g. simple severity scale (1 to 10) Multidimensional measures e.g. McGill Pain Questionnaire which has 20 questions which identify all components of extent of pain Computerised measures e.g. use of visual animations to measure different pain sensations, such as a picture of a needle piercing skin. Individuals move the needlepoint to indicate the intensity of their piercing sensations. Useful if there is a language barrier. Self report measures are not always useful as they are subject to bias & inaccurate recall. Pain is subjective and also the patient may not include the whole range of pain/emotional response associated with the pain. - 31 - Observing the patient when required to carry out a task such as, walking in a line. The number of pain behaviours is recorded directly or rated overall by an observer. What constitutes pain behaviour has to be carefully defined; for example, there are: Verbal behaviours (moans, crying out, sighing, grunting etc.), Physical actions (limping, rubbing the injury, etc.) and Postural indications (not walking upright etc.) The presence of the observer can change the type or frequency of pain behaviour displayed. Different observers may define behaviour in a different way (how strong does someone have to exhale for a breath to become a sigh?). Different conditions will have different behaviours (someone with broken legs will be unable to walk). Reliability between observers must therefore be considered. Physiological measures tend to have more reliability than the previous two methods of measurement. Several measures include: EMG (muscle tension EEG (brain activity) Heart Rate Skin conductance Neuroendocrine measures (e.g. hormone levels) These measures are influenced by other psychological and physical factors, such as mood, stress, diet and exercise. For example, increased muscle tension is related to anxiety, which in turn is strongly related to reported pain. Therefore muscle tension could reflect pain or anxiety, making interpretation difficult. Psychological interventions can be applied to dealing with pain, such as behavioural or cognitive approaches (this is in the Psychological Interventions lecture). INFORMAL CARERS The Department of Health has reported that there were an estimated 1.78 million clients receiving services that were provided, purchased, or supported by CSSRs (Councils with Social Service Responsibilities). Care provided in the community is carried out by the statutory community services and care by the community, usually by immediate family, is known as informal care. Informal care is based on kinship obligations between family members and is the predominant type of care. Community Care Act 1990 – introduced ‘who provides informal care’ To help priority groups such as the dependent elderly, people with physical and learning disabilities, people with long-term mental health problems, live as independently as possible, either in their own homes or in residential care. - 32 - Under this act, LA social services departments (SSDs) have the role of `commissioners' meaning they must both provide services and purchases other services. SSDs and PCTs produce an annual care plan once having assessed the needs of the local area. The assessment is based upon the resources available and the needs of the patient. The Community Care Act also instructs that a patient in need of community care must not be discharged until that resource becomes available. This can however causes problems with regards to the number of free beds available. Needs of Carers: Informal carers reduce the financial cost to the state, however the cost to the person being cared for and the carer themselves are considerable. Caring can impose a heavy financial, physical and psychological strain on carers: Financial: • Carers may give up their own career, due to the difficulty of combining the demands of employment and caring responsibilities. • A survey by Carer’s UK in 2005 found that 77% of carers were financially worse off, despite all receiving carer’s allowance. Carer’s may also need to purchase certain products or services, such as upgrades in the home in order to benefit individual being cared for and to improve their quality of life, which is not funded by the government and therefore leads to greater financial struggle. • Physical: • The physical labour involved in meeting the activities of daily living for a relatively immobile person can be considerable, and demanding for carers who are likely to be elderly themselves. This potentially can lead to the carer’s developing health problems. • Changing clothes, showering, eating and other everyday tasks will all need attention and help to achieve therefore putting a huge burden on carer physically. • British Household Panel survey data showed that the health of carers is more likely to deteriorate over time than the health of non-carers. Psychological: • Giving up own career and taking up unpaid care, remains undervalued in society. Therefore potential loss of social status (inability to socialise or fulfil roles like normal) and self-esteem. • Caring relationships between partners and family are reciprocal (sharing the duties of everyday life). Tensions can develop due to the changes in role brought about by the increasing dependency of the receipt of care in the relationship. • Individuals who become physically dependent on their partner may feel frustration and anger with their condition which they cannot express to their carer; although this is possible with a professional carer. Keeping feelings bottled in can lead to irritability, short temper or even health problems such as depression. - 33 - • In the case of those caring for family members who have a mental health problem, relationships can be strained not just because of the pressure of caring in itself, but because of the ways in which the carers may find themselves stigmatised (by association) because they are seen in some way to be responsible for bringing about the mental health problem in the first place Assumptions underpinning State Policy • Relationship between state and family i.e. introduction of the Community Care Act • Changing role of family i.e. from extended family (Asians) nuclear family (modern) so state welfare system provides care. But this ignores the fact that there has been a absolute decline in the size of families and a geographical dispersion of households containing related people. • Role of women i.e. cannot assume that women will look after dependent, as they have equal opportunities and rights. As well as demographic changes, shifts in employment patterns, as well as changes in what are perceived to be acceptable divisions of labour between men and women all challenge this. • Culture i.e. cannot assume care will be readily provided to Asians, even if they know other Asians. Asian husbands are not providing sufficient support for their wives when looking after dependent-child. Even if you are Asian in the UK, does not necessarily mean that you will get informal care readily. PSYCHOLOGY OF PERCEPTION & MISPERCEPTION (include McGurk effect and Simon & Levin) Perception and sensation refer to two different processes in psychology. Sensation = process of detecting the presence of stimuli by sensory organs Perception = recognition, integration and interpretation of raw stimulus It is through perception that we develop knowledge and understanding of the world. Two major theories of perception: • Bottom-up theory (proposed by Gregory) – recognition and interpretation of stimuli is a direct process that is determined by the information presented to the sensory organs. It is the physical characteristics of the stimuli that result in a particular perception and thus perception is driven by the physical characteristics of the stimuli. This basic information is then used to build a meaningful representation of the scene. The information is therefore drawn only from sensory data and nothing else – limitation. i.e. square is perceived as a square because it presents itself with four sides of equal length set at right angles to each other, by matching these features with stored information, perception can be used to objectively identify squares in our environment • Top-down theory (proposed by Gibson) – simple sensory information is insufficient in explaining recognition and interpretation of stimuli. Sensory info is combined with psychological constructs such as expectancies, previous experiences and or other info to which provides a context. This theory argues that recognition and interpretation is an active - 34 - process by our knowledge and expectation of the world i.e. looking at an optical illusion and spotting the image hidden, in future you will always notice the hidden image • The final perception depends on who you are, whom you are with, what you expect, want and value. It is a balance of both these theories which allows adaptation to the physical and social environment otherwise… A complete bottom up approach will mean you will bound to the same repetitive mundane reality. A complete top down approach would make you lose yourself in your own fantasy and what you expect and hope to perceive. Various methods have been devised in order to study perception. The key methods can be defined as the behavioural approach and the physiological approach. We will consider the behavioural approach, which focuses on the relationship between the physical properties of stimuli and our perceptual response to them. The two most widely used behavioural techniques are the phenomenological approach and the psychophysical method. Phenomenological (qualities) method – i.e. say what you see or feel. This provides a useful way in which to obtain descriptive information and is important because of the subjection nature of perception (e.g. pain perception). Psychophysical method – this enables us to establish quantitative relationship between a stimulus and perception. Absolute thresholds: the minimum intensity required for the senses to perceive stimulation, at least half of the time Vision: a candle viewed from 30 miles on a dark, clear night Hearing: A watch ticking from about 20 feet away in a quiet room Taste: 1 teaspoon of sugar dissolved in 2 gallons of water Smell: 1 drop of perfume diffused around a small house Touch: The pressure of the wing of a fly falling on your cheek from about 0.4” Visual perception and perceptual organization – despite the vast amount of sensory information that is present in our environment we are able to achieve a stable representation of our visual world. This suggests that our perception is highly organized. Some of the ways in which we do this are through grouping, perceptual constancies, depth cues, pattern perception and motion perception. Our perception is not always accurate, however, as the effect of visual illusions demonstrates. http://www.faculty.ucr.edu/~rosenblu/VSMcGurk.html Factors affecting perception (PEMPPAD) Given that perception is to a large extent our interpretation of sensory stimuli it is unsurprising that we experience stimuli in different ways. Research has identified various factors that influence our perceptions. 1. Personality – people with different personalities show a tendency to behave differently in different situations. It also appears that some aspects of personality can have an effect on perception (e.g. introverts have more sensitive visual perception and are better at perceptual tasks that require sustained attention than extroverts.) 2. Emotion - 35 - Depression – people suffering from depression show a tendency to interpret ambiguous information negatively and report pain as being worse than people who are not depressed. Anxiety – people suffering from anxiety show enhanced perception for threatening information. 3. Motivation People are often likely to perceive information as relating to their needs. (e.g. Therefore, sometimes patients may overestimate the benefits of a particular treatment). 4. Perceptual set Context, expectations and past experience all effect our interpretation of the perceptual information that we receive. We are prone to seeing what we expect to see and hearing what we expect to hear (e.g. If we are trying to stop smoking everywhere we look we will notice stimuli connected with smoking). 5. Physiological – perceptual abilities can be severely affected by injury or disease. For example: Agnosia – individuals with this disorder are able to see accurately, but have an inability to make sense of visual information. Fluent aphasia – results in production of fluent speech in the absence of the ability to comprehend words. 6. Attention: The vast majority of sights, sounds, etc., pass us by without becoming part of our conscious awareness. On the whole, in order for us to receive information we must pay attention to that which is most pertinent. (e.g. clinicians must learn to discriminate the most vital information when making a diagnosis) Simons and Levin scenarios. Attention is a limited resource and focusing on one thing reduces concentration from another. Therefore, attention is distributed towards concern-related cues 7. Demographic Age – perceptual processing changes with ages. Older people are less able to ignore irrelevant information and selectively attend to specified information than younger people. Gender – males have better visual acuity in daylight conditions, while females’ vision adapts more quickly to the dark. Culture – individuals from cultures who take part in ceremonies that involve hanging from steel hooks embedded in their backs report feeling no pain. Less spectacularly, individuals from Western cultures appear to be more susceptible to visual illusions. PSYCHOLOGICAL INTERVENTIONS Why are they needed: Used for mild depression/anxiety, manages symptoms of chronic diseases (headaches) and used in pre-surgical psychological counselling (reduces stress and anxiety) Behavioural Techniques – based on learning and for behaviour modifications (e.g. classical and operant conditioning): - 36 - Systematic desensitisation – based upon classical/operant conditioning e.g. used to treat phobias or OCD such as introducing spiders. A method of eliminating fears by substituting a response that is incompatible with anxiety such as relaxation. Can use flooding (place them with fear with no escape until overcome) or graded exposure (slowly expose patient to fear until they overcome it) Relaxation – e.g. massage, meditation and progressive muscle relaxation (PMR.. reduces muscle tension in everyday use, proven to reduce anxiety and improve QOL) o Based on 3 stages: Learning to relax (use of CDs), monitoring tension in everyday life (use of diaries) and using relaxation at times of stress (dampens down stress response) o Advantages: Easy to learn, can be used virtually everywhere, once learned relaxation is rapid, easily combined with other techniques and no special techniques needed. o Disadvantages: Daily practise requires therefore a high drop out rate, not suitable for all clinical populations, meditation and PMR take time to learn and does not address cognitive processes. Biofeedback – Records the physiological stress response (e.g. HR and BP). Patient is then taught strategies to reduce these (e.g. by relaxation). This then acts as positive reinforcement as patients sees immediate improvement (operant conditioning). o Proved effective in: hypertension treatment, tension headaches(with relaxation), less pain/anxiety during childbirth with 30% medication use and 2 hours less duration of labour. Operant Conditioning – uses positive and negative reinforcement to change behaviour. E.g. use of selective reinforcement (rewarding desired behaviour and ignoring others), modelling (learning a behaviour by imitating others e.g. in hospital procedures but can lead to social phobia) Cognitive Techniques – focus on altering maladaptive cognitions and/or providing adaptive cognitions e.g. Rational Emotive Therapy (RET). Goals are to relieve symptoms, acquire effective coping techniques and to modify cognitions. Assumptions made are: that individuals interact with world though interpretations and evaluations and therefore it is the thoughts, beliefs and meanings that are attached to events that cause psychological disturbance. 3 main sources of psychological distress are: • Avoidance of the feared situation • Concealing aspects of oneself that cause shame • Procrastination – putting off dealing with problems. Rational Emotive Therapy (RET) A – Identify Activating event B – Identifying Beliefs and thoughts in response to A C – Identify the emotional and behavioural Consequences of B D – Dispute the irrational beliefs E – Effect of therapy is to restructure the belief system to acknowledge rational and discard irrational beliefs E.g. coping with pain – Distraction from pain, relabeling pain, distancing oneself from pain, changing the context - 37 - Cognitive Behavioural Therapy (CBT) – to improve coping skills and reduce emotional distress Cognitive and behavioural techniques are combined under CBT, usually lasting for 20 sessions. Keys elements: Identifying maladaptive strategies removing them Teaching positive strategies for coping/managing There are three stages: 1. Educational stage (Improve understanding of pain and how behaviour and feelings impact it, addressing external factors which are stressing patient) 2. Skills acquisition (Pacing skills of work and activities to regulate levels of stress and systemic desensitisation to tackle avoidance behaviours) 3. Maintenance phase Features of CBT: Structured problem solving approach, guided discovery, homework, empowering client, problem solving, goal setting w/ self-reinforcement and case conceptualisation. CBT can be applied to depression, PTSD, anxiety disorders and chronic pain… E.g. of use = patients with RA receiving CBT had less anxiety as well as improvements in physical measures of arthritis activity compared to those receiving no treatment. CBT in GAD is as effective as pharmacological treatments for reducing anxiety, depression and improving QOL. Counselling – providing a supportive environment to help people through difficult periods Stress Management Encompasses both CBT and counselling techniques, and these are usually tailored to the individual’s needs. There are three stages in stress management: 1. Understanding cause of stress 2. Developing appropriate skills/behaviours to cope 3. Developing appropriate attitudes and beliefs to cope Stress management can be for one or all of the following targets: Changing the external cause of stress Changing the individual’s response to stress Providing long/short term solutions Preventive or palliative Stress management can be used to anticipate stress, to help people with ongoing stress (relaxation), or as interventions following a critical event (critical incident debriefing). Critical incident Stress Debriefing (CISD) – designed for emergency services workers to cope with acute traumatic/stressful events e.g. meeting someone else who experienced the trauma (normalise). Structured educational and supportive group who meet up to work through the following: 1) 2) 3) 4) 5) Introduction – establish ground rules Facts – examine factual accounts from victims Thoughts and sensory perceptions Emotional reactions Normalisation/anticipatory guidance - 38 - 6) Future planning and coping 7) Disengagement However the most effective treatment for PTSD is: Trauma focused CBT and Eye movement desensitisation and reprocessing (EMDR). Brief Intervention (FRAMES) – used to treat problems e.g. alcohol intake Feedback about personal health and risk of impairment Stress personal Responsibility for making change Advice to reduce the problem or its manifestations Provide a Menu of alternative strategies for changing maladaptive behaviour patterns Empathetic interviewing style Promote Self-efficacy; this leaves the patient enhanced feeling able to cope with their agreed goals PATIENT ADHERENCE & SATISFACTION Satisfaction – the difference between perception of actual services vs expectations or ideals. Therefore the idea of evaluation vs expectation. Satisfaction is specific to different health situations and is increasingly used as an indicator of quality of health care. Factors affecting patient satisfaction: • Interpersonal skills of HCP. Most important factor. Good communication and a patient centred approach where patients concerns are listened to, and patients have active participation and agreement in treatment decisions. • Technical quality (accuracy of diagnosis, medical errors, clinical competence) • Accessibility (distance from patient’s home, time of clinic opening, car parking, choice of services) • Availability (waiting lists, choice of provider) • Cost (prescriptions, transport, time off work and of special equipment) • Physical environment (cleanliness, condition of room, quality of food) • Continuity (number of different carers – patients like sense of familiarity) • Health outcome (more satisfied if health outcome good) • Demographics (older patients more satisfied often) Measuring satisfaction: Surveys/Questionnaires (Self administrated, easily analysed, provides qualitative information, proven reliable and comparing possible between other instutitiues) Interviews (e.g. face to face or telephone, more specific information obtained) Focus groups (target particular groups, and is least contaminated by user) Anecdotal evidence (complaints – most are due to aspects of clinical treatment, comm skills, cancellations/delays and attitude of staff e.g. willing to help) - 39 - Consequences of dissatisfaction: • Changing GP or hospital • OTC medication with Prescribed medication (25% take OTC with prescribed medication can lead to side effects due to drug interactions) • Using unorthodox treatment • Poor health status (low perceived health, reduced QOL Low adherence to treatment (lack of compliance) Adherence – extent to which patients action matches the agreed recommendations. At around 60% currently. Non-adherence – the point below which the desired therapeutic effect is unlikely (Gordis 1976). At around 30-50% (4% hospital admissions due to non adherence). Problems arise due to loss of health gain to patient, loss of resources to health care providers, and failure to reach returns on investment for pharmaceutical industry therefore affects other drug development. Measuring adherence: Self report Prescription refills Pill counts Physiological measure e.g. blood, urine Health outcome e.g. weight Mechanical device e.g. electronic pill counters Direct observation Creative non adherence – Deliberatly modifying a prescribed regime due to underlying rationale such as mood or personal theories, which is not related to a lack of knowledge, but may be used to overcome the loss of control that the illness has caused them. Example is 1/6 of patients take drug holidays 3 times per year with occasional omissions. The reason patients do not adhere to treatment is usually down to the following (and not the patient and his personality like clinicians think): 1. The health beliefs of the patient • Identification and labelling of health problems e.g. do they agree with diagnosis. Understanding of causes (genetic causes often leave patients feeling hopeless) Do they perceive the condition to be curable and controllable? • What is the timeline – acute (more adherence here) or chronic 2. The characteristics of the treatment regime • Complexity of treatment • Duration of treatment • Side effects of treatment • Degree on which lifestyle is changed Evaluation of cost vs reward. 3. Communication between the healthcare provider and the patient (a lot of people don’t know how long, or how often to take medication or the purpose of medication) - 40 - Consequences of non adherence: Deterioration of health, hospitalisation, increased morbidity and mortality, increased GP visits, poor QOL. Adherence can be increased by: • Improving doctor-patient communication • Providing CBT counselling • Tailoring information to the patient • Patient-centred approach • Simplify treatment regimes Monetary incentives. SEMESTER 4 – PPD - 41 - Confidentiality • • • Around 50 people see person’s medical notes, ranging from doctors, nurses and students. Patients often do not know this. Ethical basis for confidentiality: o Respect for autonomy and ensures moral privacy o Trust and probity.. enhances compliance. o May aid beneficence. Therefore benefits patient for example by increase likelihood to disclose more information to HCP and this can aid treatment. Certain people with infectious diseases may avoid seeing a doctor, if they fear confidentiality will be breached and therefore not understand how to treat it or reduce its transmission. o Ensures quality of care by showing patients can rely on physicians to maintain privacy and respect for their care. Legal basis for confidentiality: o Mainly common law (by judges in courtrooms) but some statute law (made in parliament). o Common law involves: 1. Contract. Only found in private health and not NHS. These contracts have a part regarding privacy of information, where breach indicates breach in contract and therefore can lead to a court case. 2. Tort (harm) which involves negligence (of breach of confidentiality). HCP has duty to maintain privacy. However, any damages is limited. 3. Equity: Equitable obligation to respect private information, even in social contexts. HCP has a duty to protect privacy regardless of context. Not much compensation available for breach of confidentiality, but you can request an injunction before disclosure happens. Not usually helpful for patients, as they only find out after the disclosure occurs. o Statute law involves: 1. Data Protection act 1998 which governs the collection, storage and processing of information. 2. Human Rights act 1998, specifically article 8, stating right to respect for private and family life. Not absolute and may be overridden e.g. national security, public safety. 3. Human fertilization and embryology act 1992 e.g. info on assisted reproduction is not allowed to be past to GP unless specific consent from patient. 4. National health service regulations 1974 on STI’s (e.g. health clinic doctors not allowed to pass info on) Breaching confidentiality is acceptable in: o Patient consents. - 42 - o • 1. If patient consents, then there is no breach in confidentiality. o Best interests of patient lacking capacity 1. It may be permissible to breach the confidentially of a incompetent child/adult if this is in best interests of patient. E.g. disclosing health status of patient with dementia to wife/husband. Public and private interests 1. Public interest should only be in the most compelling circumstances. There must be a real and serious risk of physical harm to an identifiable individual or individuals. 2. Balance (weighing up) is required of public interest in doctors keeping confidences vs public interest in protecting society or individuals from harm. 3. Need to balance the right to respect for private and family life against other rights e.g. freedom of expression. 4. Difficult to judge/analyse 5. But gives doctor discretion, control (e.g. ability to weigh up info) o Legal requirement. 1. Statutory requirement to breach confidentiality if: Notification of births/deaths, fertility treatment, communicable diseases (e.g. cholera) to the health authorities not to e.g. wife or other people, termination of pregnancy, terrorism. 2. Doctor has no discretion or control 3. But it is easier, in terms of simpler w/o need to think much. Bad but common practice: o Breaching confidentiality in lifts/canteens, A&E departments and wards, computers/faxes/printers, trains and parties. o Taking notes out of hospital (66% of hospital staff) for purpose of research/audit. o Social media sites. o Trivial information is more complicated, but GMC say “patient have a right to expect that information about them will be held in confidence by their doctor” Confidentiality and death: o Ethical duty remains the same even after death o GMC state that doctors must follow same ethical position. o Legal duty removed after death e.g. public nature of death certificates. SOCIAL CONSTRUCTION OF GENDER 1. Questions of definition : The common understanding of differences that may exist between men and women is usually based upon those biological differences that exist between females and males. Biological sex is the way in which the sex of an individual is determined on the basis of biological differences (external genitalia). However, in practice the categories ‘male’ and ‘female’ are not used exclusively to describe the biological features of human bodies. The terms are also used in the identification of what are - 43 - essentially social and psychological characteristics and attributes, for example, behaviour, attitudes, and the interaction skills. In order to be able to distinguish between the biological fact of ‘sex’, and the social and cultural characteristics associated with being male or female, the term ‘gender’ is utilised. Gender refers to those social and cultural perceptions associated with ‘sex’ differences, socially constructed as ‘masculine’ and ‘feminine’. For example, masculine is dominant and decisive, while feminine is soft and weak. However, the difference that is drawn between biological sex and gender is complicated by the existence of individuals who are not easily categorized by their external (biological) genitalia and by others who feel their anatomical body is out of line with their subjective sense of being male or female. 2. The social construction of gender Gendered social practices are those which shape women’s and men’s bodies in ways that reinforce particular cultural images of femininity or masculinity. These then lead to stereotypes which each sex is expected to follow. Such socially constructed gender identities can result in negation of biology. Young children have gender identities imposed on them long before they are capable of doing an act which is attributed to sex of their bodies e.g. reproducing. The imposition of gender identities is then reinforced though naming or dress (e.g. pink for girls). Children then start referring to themselves as a member of their gender, parenting is also gendered (difference in expectation between mother and father) and work roles have reflected this.. e.g. women more caring roles. Gendering is done in all societies and cultures, because gender as a social institution is one of the major ways in which the division of labour is organised. The alternate will be choosing people for social tasks based on skill, motivation and talents. One example of gender difference would be the traditional encouragement of boys (but not girls) to engage in strenuous physical exercise as girls are seen as weaker (not true most of the time). The outcome of such gendered social practices can have very real long term effects on both men and women’s bodies - socially constructed gender identities which can result in a negation or ‘transcendence’ of biology. This approach challenges the idea that biology is fixed. According to ONS, 53% of young men carry out recommended PA, but only 33% of young women. Women have lower mortality, but higher morbidity, and therefore are expected to live longer in poor health than men. This can arise from social suppression of bodily similarities and the exaggeration of bodily differences. Production of ‘women’ and ‘men’ as separate and unequal social categories, occurs by converting average differences into absolute ones, and can become self fulfilling prophecies as physical bodies change to support them. - 44 - Ethics of Elderly Care What’s different about elderly care: 1. The same ethical duties apply to older people. 2. Older people are usually more respectful to the HCPs. 3. Older patients are more dependent on social and family support, which is extenuated by an increasing life expectancy due to medical technology. This leads to problems with provision of resources, so government has passed the Community care (delayed discharge) Act which fines local authorities for not assessing and transferring patients fast enough out of hospital. Have more complex health needs (e.g. polypharmacy which leads to drug interactions, side effects requiring regular review and good communication). 4. May be discriminated against (elderly have a right to choose their accommodation through the 1948 National assistance act). - 45 - • • • • • • • • • • • 2 important standards should be maintained in elderly care: o Standard 1 : Rooting out age discrimination : prevents age related discrimination o Standard 2: Person Centred Care : supports choice Consent, capacity and confidentiality should all still be maintained. Quality of life assessment is difficult, especially with patients that are cognitively impaired. ADL scales can be used, or social history comprising of their activites, relationships etc. Do not assume that they do not have a good QoL. Autonomy is important as allows for right of self determination, allows trust to develop between doctor-patient. Capacity can be assessed by the MCA05: Understand, retain, weigh up and communicate. Capacity can fluctuate in the elderly. No one is allowed to consent for a patient with no capacity, but action must taken that is in the best interests. MCA05: A person must be assumed to have capacity unless it is established that they lack capacity. A person should be not treated as not having capacity due to an unwise decision. All acts should be in the best interests of an individual, if they do lack capacity. Before final action taken, regard should be taken on whether the purpose can be achieved in an alternate way to reduce the restriction of individual on his rights. Dementia causes a cognitive deficit, secondary personality change and incapacity. The case for paternalism: o Autonomy can only have meaning if it is informed o Autonomy may not be valued as highly by patients as by ethicists and doctors o Emotions, confusion, pain and distress can compromise decision-making so that it is not truly autonomous o Autonomy can result in poor and preventable outcomes Paternalism can be used under National Assistance Act 1947: ‘grave chronic disease’ or ‘aged, infirm and incapacitated’ and ‘living in insanitary conditions’. Removal should be based on best interests of patient or to prevent harm to others. Eviction requires a notice to be given to the magistrates court 7days in advance. However, in emergencies, removal is permitted for up 3 weeks. Mental health act 1983 can also be used for paternalism if a patient refuses. Elderly people are vulnerable and should be treated paternistically (benevolent yet forceful) if the patient clearly does not have capacity. If patient has capacity, they should have an active role in the decisions in their own healthcare. Communicating Risk The goal in decision making is to select health services that increase the chances of valued health outcomes and that minimise the chances of undesired consequences according to the best available scientific evidence. Communication of risk must be achieved in various situations: • Timing: Acute illness vs. chronic illness (e.g. heavy bleeding in preg or slowly growing tumour) • • Seriousness of situation: Screening vs. treatment Consequences of intervention: beneficial consequences vs. harmful consequences (Always consider the availability of evidence and if it trustworthy). - 46 - Working in partnership with patient is essential for good care, where doctors must: • Listen to the patients and respect their views about health • Discuss with patient – diagnosis, prognosis, treatment Share with patient the info needed for them to make a decision Maximise patients opportunity/ability to make decision for themselves. • Respect patients decision. • Tailor discussions with patients according to their needs, wishes, priorities, level of understanding (condition, prognosis), nature of condition, complexity of treatment, level of risk. • Never make assumptions: on the type of info a patient wants to hear, what’s important for them and what isn’t, and about their level of knowledge. Consultations should demonstrate honesty, good language, trust, patient centred (patient values) and time. Purpose of any test needs to be clear. Rules for communicating numerical data: use absolute data, use consistent denominators (e.g. 1 in 100), always have a reference group, use visual aids. High quality decision making (the process of communicating risk): 1. Correct assessment of clinical situation by health professional and quality of evidence assessed of any solutions. 2. Correct information therapy to communicate situation 3. Patient made aware of consequences of no treatment and treatment 4. Relevant information is required (provide info in format preferred by patient) 5. Give information in form that is understood (check understanding), accurate and unbiased 6. Numeric risks are communicated (in complex information) 7. Patient makes decision based on accurate information and their values (ask patient if the benefits outweigh the risks) 8. Explore ICE 9. Defer if necessary (refer to more info, use of motivational interviewing or acquiring deliberation skills) Population Interventions – flour-folate story • • In 1954, double blind randomised controlled trail of folate treatment before conception to prevent recurrence of NTDs was conducted in 111 women out of 905. Results showed a non significant P value (due to small sample size). However, intention to treat analysis was used and all the NTDs in folate group were in non compilers. Then in 1983, there was ethical controversy over planned MRC randomised trial, which aimed to get 2000+ subjects, but only received 132 patients. Shows how non randomised trials can ruin the prospects for randomised. - 47 - • • • • • • • • • Observation studies of the use of vitamins containing folic acid and the occurrence of NTDs in the general population were concluded. All had a relative risk below 1, therefore suggesting folic acid acts as a protective factor, with confidence intervals excluding the value 1. MRC randomised trial took place with 4 groups (only folate, only vitamins, folate and vitamins, nothing). The relative risk was 0.28, showing a 73% reduction in NTD with confidence intervals without the value 1. DoH issued a statement in 1991, making it essential for women who had previous NTD and was having a baby to take folic acid. Another RCT was conducted on the prevention of the first occurrence of NTDs by use of periconceptual vitamin supplementation in around 5000 pregnancies. This trail had a significant P value to reduce NTDs. DoH responce was to supplement all women planning on a pregnancy. Epidemiology showed that NTDs dropped until the folate was prescribed/OTC where it then flattened. This may of been due to the scope of folic acid dispensation was only to the health conscious and not the people at high risk. E.g. people in lower socioeconomic groups did not take them as much. Therefore, a population strategy was required as o Evidence of efficancy of folic acid was conclusive. o Supplement of 0.4mg required o Problems with targeting women planning pregnancies as most not aware of problem, highest risk groups least likely to take supplementations and many pregnancies not planned. o Therefore, fortify flour with folic acid. o Requires legislation. Folic acid supplementation reduced the levels of homocysteine. However, homocysteine was a non causal marker for CHD. Folate still not fortified in flour in the UK, until publication of trial of effect of folate on bowel ca (found to be negative) and a pooling effect looking at impact on CVD (the latter was negative, as homocysteine was not causal). To conclude: o Displays poor public health measures in UK o Useful as telling us the dangers of bad studies e.g. postpone getting good evidence. o Illustrates the benefits/dangers of supplementing food e.g. bowel ca o Illustrates the importance of observation and RCT. Professional Boundaries Duty of Care: All patients are entitled to good standards of practice and care from their doctors. Essential elements of this are professional competence; good relationships with patients and colleagues; and observance of professional ethical obligations. Professional Boundaries: Professional boundaries define effective and appropriate interaction between professionals and the public they serve. Boundaries exist to protect both the professional and the client. Boundary violations harm the patient and the professional. The ramifications are widespread. Damage usually extends to marriages, families, other patients, communities, clinics, institutions, and the profession in general. - 48 - • Doctors should not treat themselves or their families. o There is an unhealthy strong culture of self reliance regarding health. o Only 50% of doctors have a GP, 90% are happy to manage acute conditions, 25% are happy to manage chronic conditions, 25% to self medicate, 50% are happy to order diagnostic investigations on themselves. o May lead to inappropriate consulting style – e.g. corridor consulting. o Doctors present with higher rates of depression, suicide and substance abuse which ultimately leads to poorer care to patients. o The family relationship and context, may deter either party from disclosing information, or acting in an appropriate way. - 49 - o For example, it may be uncomfortable for either party if a physical examination is required, or it may be difficult to ensure confidentiality. o Family should be registered with different GP to allow for objectivity and reduced conflict of interests. • Confidentiality – Patients have a right to expect that information about them will be held in confidence by their doctors. You must treat information about patients as confidential, including after a patient has died. • Whistle blowing – You must protect patients from risk of harm posed by another colleague's conduct, performance or health. o GMC ‘act quickly to protect patients from risk if you have good reason to believe that you or a colleague may not be fit to practice‘ by notifying an appropriate body at the work first, then to the GMC or professional bodies (BMA). o GMC WILL act when: Dr has made serious mistakes in diagnosis or treatment not examined patients properly; misused information about patients; treated patients without properly obtaining their consent; behaved dishonestly in financial matters, or in dealing with patients, or research; made sexual advances towards patients; misused alcohol or drugs. • Integrity – you must not use your professional position to establish or pursue a sexual or improper emotional relationship with a patient or someone close to them. Sexual relationships are considered an abuse of power and serious malpractice. • Personal health – must be registered with a GP outside of your family, have appropriate vaccinations and must consult a qualified colleague if you suspect you have a serious illness. o Practitioner health programme - For doctors and dentists in London with mental, physical health, or addiction problems which may be affecting their work. Confidential. GMC not involved if there is considered to be no risk to patients • Probity – must act with beneficence, and you must not allow any of your personal interests alter a course of treatment (e.g. if you are receiving gifts from a drug company it does not mean that you will advertise that drug), but if you do then you must make the patient aware of this involvement • Breaking bad news – HCPs should answer to the patient’s agenda, break any bad news with empathy, language or professional camaraderie should not exclude patient. Drug companies: • Companies act to have their drugs added to the prescription activity of the doctor through meeting representatives of that company, free meals, funding for travelling to conferences or research. • These gifts o Cost money (like other advertising). o Influence behavior (like other advertising). o Create obligation, need to reciprocate (unlike advertising). o Create sense of entitlement (unlike advertising). - 50 - o • Erode professional values; demean profession (probably unlike advertising). Companies influence prescribing, set a different agenda to the doctors, use sophisticated manipulation. Patients expect prescriptions are not based on conflicting interests. Summary of points: • Doctors must treat themselves, their family, other professionals the same way they treat their patients. • Doctors must maintain professional boundaries. • Safety of patient comes first, and therefore you may have to protect the patient from any risk posed by a HCP. • Be aware of influences e.g. financial which may influence your prescribing.. act in best interests of patients Screening and secondary prevention • • • • Prevention concerned with modifying or removing risk factors that are causally related to a disease. E.g. age/sex non modifiable. Primary prevention – removes cause of disease or reducing incidence of disease. E.g. legislation on driving whilst intoxiciated, immunisations or interruption of STI transmission by use of condoms. Secondary prevention – Aims to prevent clinical disease through screening then appropriate intervention. E.g. Antenatal screening, Heel prick test for hypothyroidism/phenylketouria, or mammography screening for breast Ca. Iceberg of disease exists. The tip of the iceberg, or most advanced cases of diseases, is treated via tertiary prevention. Secondary prevention uses screening to identify patients with subclinical disease. Whilst primary prevention used for people with no disease. - 51 - Primary Secondary Tertiary Remove cause of disease Screening for early stage disease Treatment of established / late disease Outcome on Reduce occurrence Early intervention / treatment resulting in improved prognosis or less radical treatment Manage / control consequences of disease (incidence) of disease Type of prevention Action disease • • Screening is a departure from normal medicine, as a population eligible for the risk is tested, high risk individuals identified and then further investigations occur on them. o “ …. Screening is the systematic application of a test or enquiry to identify individuals at sufficient risk of a disorder to benefit from further investigation or direct preventive action, among persons who have not sought medical attention on account of symptoms of that disorder…” Wald o Aim of screening is to select people for a diagnostic test therefore, helping to reduce financial costs or harm or unethical factors. o 3 types of screening currently in use: breast(mammography), Bowel (Faecal occult blood test) and cervix (cervical smear). Screening tests are compared with the gold standard to assess performance. o Performance can be summarised by 3 measures: Detection rate (sensitivity), False positive rate (1-specifity), Odds of being affected given a positive result (OAPR) (positive predicative value) - 52 - Detection rate/sensitivity = It’s the proportion of affected individuals (i.e. with disease) that screening test. have a screen positive test result. Probability that people with the disease test positive on False positive rate = It’s the proportion of all unaffected individuals (i.e. healthy individuals) that have a screen positive test result. Probability that a people without the disease test positive on screening test. Gold standard /diagnostic test Affected Screening result test Positive a Unaffected TOTAL bd a+b c+d b+d a+b+c+d Negative c TOTAL a +c a a c DR = It’s the proportion of affected individuals (i.e. with disease) that have a screen positive test result b b d FPR = It’s the proportion of unaffected individuals (i.e. healthy individuals) that have a screen positive test result OAPR = a : b It is the ratio of number affected to non affected when screen test positive. *Prostate specific antigen is an enzyme made in the prostate and is used to screen for prostate cancer (higher levels in patients with cancer). However, raised levels of PSA also occur in BPH, after ejaculation or prostatitis/UTI. Therefore, PSA has good sensitivity, but poor specificity to pick up prostate cancer. *Women with ovarian cancer have higher levels (>35U/ml is positive) CA125. - 53 - Screening result CA 125 test Cancer No cancer >35U/L 53 23 <35U/L 52 300 105 323 result TOTAL Detection rate = 53 / 105 = 0.50 ... 50% of cases of ovarian cancer had raised CA 125 Levels. Low sensitivity as CA125 raised in endometriosis, 1st trimester preg, pelvic inflammatory disease. False positive rate = 23 / 323 =0.07... 7% of those without ovarian cancer had raised CA 125 levels. Specifity = 1 – False positive rate (FPR) = 1 – 0.07 = 0.93 or 100% - 7% = 93% Consequences of screening: • • • No screening, less disease detected early. With screening, more diseases detected early, but individual without disease will have to undergo more diagnostic tests (as he is false positive) There must be a provision of resources, in order to investigate all the screen positives. If they are screen positive, the chance of them actually have disease is measured via the OAPR (odds of being affected with positive result): • • • • Can be represented as a ratio Or a proportion via PPV (positive predictive value) = Number of affected individuals screen positive results / Total number of people with screen positive results. PPV= a/a+b. E.g. PPV of 70%, means that 70% of referrals have ovarian cancer. The CA125 shows low sensitivity and high false positive rate, therefore is not a suitable screening tool. However, CA125 with transvaginal ultrasound, shows improvement. Also, finding cancers early on, may not lead to a better life or a cure. Antenatal testing for spina bifida: • • • 2 per 1000 births / year Tested via alpha-fetoprotien in mother’s blood, which is elevated in affected pregnancies. A screen positive test, is one with a-fetoprotien of >2 MoM (multiple of the Median). - 54 - • • Detection rate = 75%, FPR = 2% (2% of unaffected pregnancies have positive result) How would this screening test perform if we were to screen 10,000 women? Prevalence 2 per 1000 20 OSB Screening test DR=75% 15 10,000 women Overall approx. 2% of women are screen positive & would go on to have 9980Unaffec ted FPR=2% 200 OAPR (odds of being affected given a positive results) 15:200 1:13 Equivalent probability PPV = 15/215 ~7% • • • Detection rate and false positive rate are not affected by prevalence of condition screened for BUT OAPR and PPV ARE affected by Prevalence of disorder being screened. The more rare the disease, the higher the OAPR and the lower the PPV. After a screen positive result, a amniotic fluid sample is taken for diagnosis to measure AFP levels. This has a DR of 95%, FPR of 0.5%. Remember: Many medical costs in screening, anxiety for women being screen, ethical debates on terminating a pregnancy, or the anxiety caused by terminating a healthy baby. Requirements for a screening programme: Disorder Well defined medically - 55 - Prevalence Known & of public health importance – should we screen for extremely rare diseases however devastating they might be to health? Natural History Possible to identify early disease from healthy Treatment Effective treatment is available There is no point screening if no treatment exists risks of early treatment both physical and psychological should be less than the benefits Test It should be simple, safe, easily implemented, acceptable Test Performance The expected performance of the screening test must be known Ethical The test & procedures after a positive screening test result should be acceptable to both screener & individual adequate health provision for the extra clinical workload resulting from the screening Access All people who could benefit should have access to the test - 56 - Financial Cost-effective Early detection & treatment vs. late diagnosis & treatment Costs should be balanced against:(i) risks - hazards associated diagnostic test, interventions / treatment (ii) benefits - reduction in morbidity or mortality PSYCHOLOGY OF AGEING BIO-PSYCHOLOGICAL APPROACH – the ageing brain determines any psychological changes that occur with age. Cross section evidence suggests that there is a decline in cognitive skill with old age due to loss of brain weight/cell number numbers/brain power. Longitudinal studies decline showed a smaller decline Cross section versus Longitudinal studies: Cross sectional accentuates loss, due to cohort inequalities/confounding variables (e.g. education has increased from 1890s to 1980s, therefore each cohort will be better educated than previous, sanitation or healthcare). Longitudinal data collection minimises the evidence of decline, because those who are able to and willing to be retested tend to be healthier, wealthier and wiser than those who drop out or die. Also as cohort inequalities are minimised due to each participant acting as his own control. Intellectual decline is normal: • Evidence in age related drop in both cross section + longitudinal • Affects tasks requiring speed of processing more than tasks that need acquired knowledge or problem solving. • • • More common in 80+ (“old old”), but even in this group some do not show evidence of it. Abnormal when it is earlier in age, when crystallized intelligence (loss of wisdom) is lost. Crystallized intelligence/ wisdom does not increase with age! • • Fluid intelligence (loss of wit) is normal. Use of intellect and enrichment of environment (e.g. good social life, caffeine) across the lifespan can be protective (therefore less intellectual decline). decline is irreversible. Ageing process or the Bernice Neugartern’s Model (Adjustment) Ageing is associated with physical, psychological and social decline which require adjustment. Bernice Neugartern’s model says the life course is bio-socially structured through events such as birth, marriage, work and retirement. The more predictable the event (e.g. more socially predictable it is), the less likely it is to demand individual adjustment. The less predictable the event (e.g. death of a child), the more adjustment needed and the greater risk of being stabilised. Therefore, experiences - 57 - in life effect adjustment either acting as a strength or weakness e.g. Kids growing up during Depression adjusted better when they became old and had less money. Socioemotional Selectivity Theory – Carstensen et. al (2003) Knowledge of how long you have left in life leads to diverting motivation away from trying to gain knowledge, and putting it towards emotional satisfaction. E.g. in the young, more focus on education to improve future, which is seen less in the elderly. This may confer defensive advantages in later life, by positivity effects and therefore is seen by the decreases in prevalence of mental health problems in old age. Theory of Third Age – Peter Ladlett (1989) This theory views later-life as a time of self fulfilment, where one can follow their own projects and plan their lives. But this can only be possible IF person has physical and material (money) well being. This then explains that this is the reason why older adults take a active role in their treatment/care. Erikson’s Theory – Psychosocial develepment This theory argues that at each stage of life we face a particular type of psychosocial crisis, whose resolution helps establish an trait or ‘virtue’ that then serves us well in addressing challenges in later life e.g. young adulthood (intimacy vs. isolation) or infancy (trust vs. mistrust) Key adult ‘qualities’ are: Sense of identity (being someone) Capacity for intimacy (having someone) Experience of generativity (helping someone) Acquisition of integrity (taking responsibility) Older adult assessment is difficult due to underreporting of psychological complaints. Older adults (males) are at high risk for suicide – “masked depression” – and 50% of suicide victims older than 60 see their GP in the month of their death which highlights difficulty in detection of problems. QUALITATIVE METHODOLOGY AND RESEARCH [NOT TOO IMPORTANT] Historically: • • • • Health science research has become more and more influenced by the social sciences. E.g. more focus on human behaviour, thinking, society and culture There has also been a acknowledgement of the complexity of health and health care, especially in areas such as patient centred interventions or the patient-doctor relationships. This lead to a critique of the limitations of quantitative research based upon: o Epistemology (over reliance on positivism – only scientific data with empirical proof is valid) o Observations/empiricism (where there is a over reliance on cause and effect explanations, objectivity. o And that not everything can be ‘measured’ Therefore, quantitative research limited the research questions and qualitative research developed to expand the available research questions. - 58 - • Interest developed in interpretive approaches, with a focus on different epistemologies such as lateral thinking – moved away from objectivity. Now: • • Qualitative research can complement mainstream methodologies of research and types of research question. But can also challenge prevailing knowledge by offering alternative perspectives. What is qualitative research? • • • • • • • • • Variety of research approaches which collects qualitative data. Collection via interviews, focus groups, written texts. Usually on a small sample size, as you are looking for specific characteristics (not all the same) and due to the thick description provided. Data is then analysed in a way without need of statistics. Depending on the research question and the methodology chosen, data is analysed for codes, themes, discourses, discursive interactions, narratives. There are different methodological approaches in qualitative research such as phenomenological, social constructionist, narrative. There is research that is known as little q (instead of a Big Q), where this qualitative data is collected then is statically analysed. There are different types of research questions: o How people experience things (e.g living with chronic illness/pain) o How people make sense of things (what discourses do health professionals draw on when working in Black and minority ethnic (BME) communities?) o Why do people behave in a certain way? (e.g. why is there low uptake for certain health interventions. Qualitative research has been useful in areas such as living with chronic conditions, understanding lack of adherence to interventions, exploring barriers to accessing services, exploring assumptions of HCPs and providing a alternative explanation to biomedical model especially in mental health. o Therefore, qualitative research allows for more engagement with participants, engagement with language and provides more detail. Examples: Sexual health in the UK: o Epidemiological surveillance (and other quantitative research) has been useful in understanding the incidence of STIs and intervention uptake. But these pose problems in the ways in which categories such as ethnicity are used as variables, they miss the important socio-cultural context (e.g. understanding of STIs by people) and present a particular story (e.g. African heterosexual men are high risk). o But qualitative research can answer questions relating to the experience and understanding of STI by people and can be used to focus on young people to aim to lower STIs. Allergies: o Quantitative research has gone into causes/epidemiology and RCTs to test efficacy of different interventions. - 59 - o • But qualitative research can explore how patients manage these allergies, how they make a sense of the interventions or the HCP understanding of managing the patient’s disease. Qualitative approaches offers o Interpretation instead of objectivity, where there are different ways to ask questions as well as different answers. Therefore allowing for research reflexivity. o A thick description, therefore more detail. o Engagement with participants instead of observing objectivity from afar. o Alternative explanations, beyond the normal epistemologies. QUALITATIVE METHODOLOGY AND RESEARCH 2 [NOT TOO IMPORTANT] In mental health research: • • • The biomedical model is still dominant within psychiatry. However, biological explanations provided are limited and focus on the individual. There has been a survivor movement, which challenges the mainstream psychiatry especially in the pathologising of normal reactions. This has allowed for a shift in epistemology (to e.g. social constructionist approaches), which allows for different ways to understand mental health. 2 main qualitative methodologies relevant in mental health: 1) Social constructionist approach e.g. discourse analysis 2) Phenomenological approach e.g. Interpretative phenomenological analysis (IPA) Social Contructionist approaches: • • • • Take a critical stance on taken for granted knowledge. Aims to deconstruct this knowledge to provide an understanding of why it is taken for granted. E.g. mental health issues as ‘illness’ Examines the historical and cultural specificity of knowledge. E.g. Hearing voices in some cultures is something special and not a disease. Focuses on the sustaining of knowledge by social processes e.g. by language allowing for social action. Knowledge and social go together e.g. in the consequences of particular constructions. E.g. medical interventions vs challenging society views. DA is influenced by Foucault (states the psychiatry is a powerful institutional which can influence and control people). DA focuses on o How language facilitate, limit, enable and constrain what can be said, by whom, where and when. (Depending on a certain situation, different people will be dominant in the discourse) o how ‘discursive objects’ are constructed (e.g. mental health or behaviour) o What broader discourses are objects constructed within (e.g. biomedical discourse) o What are the functions or implications of such constructions (e.g. responsibility on - 60 - HCP or drug interventions) o Analyses the available subject positions (e.g. position of doctors vs patients) and the overall implications for practise of the positioning (e.g. doctors more dominant). Data collection usually by interviews or texts. Phenomenological approaches: • • • • • Focus on how people experience certain things e.g. illness (therefore their lived experience). Example is IPA, where the researcher interprets the participants description of their experience. Data collection is usually via semi-structured interviews (1 to 1). This approach can be used in e.g. dementia or AD to study the change of self concept (old self vs new self, concerns over affect on others, coping strategies), or carer’s perspectives or experience of service providers. Implications of phenomenological approaches (they allow for): o Early intervention strategies o Carer support o Impact on how practitioners deal with dementia patients on a individual basis o Psychological support. Overall implication of qualitative research on mental health: • Shift in epistemology has increased understanding of mental health available such as narrative methods. Range of methods - 61 -