National High Blood Pressure Education Program NIH Publication No. 98-4080 November 1997 This set of slides is provided by the U.S. DEPARTMENT OF HEALTH AND HUMAN SERVICES Public Health Service National Institutes of Health National Heart, Lung, and Blood Institute National High Blood Pressure Education Program Full text of JNC VI may be downloaded from the NHLBI web site. National High Blood Pressure Education Program NIH Publication No. 98-4080 November 1997 National Heart, Lung, and Blood Institute (NHLBI) publications fall within the public domain (as do all Government publications). Hence, they are not copyrighted and may be reproduced or reprinted. NHLBI does ask, however, that reprinted material include a credit line acknowledging NHLBI as the source. Communications and Public Information Branch Office of Prevention, Education, and Control DISCLAIMER The appearance of rotating Ads on this web site bears no relationship to JNC VI. The slide set is provided for educational purposes. It may be disseminated freely, but may NOT to be used for commercial or product endorsement purposes. MedSlides Board of Directors National High Blood Pressure Education Program NIH Publication No. 98-4080 November 1997 The Sixth Report of the Joint National Committee on Prevention, Detection, Evaluation, and Treatment of High Blood Pressure (JNC VI) Sixth Joint National Committee on Prevention, Detection, Evaluation, and Treatment of High Blood Pressure Executive Committee: Sheldon G. Sheps, M.D., Chair Mayo Clinic and Mayo Foundation and Mayo Medical School Henry R. Black, M.D., Chair of Chapter 1 Rush-Presbyterian-St. Luke’s Medical Center Aram V. Chobanian, M.D. Boston University Jerome D. Cohen, M.D., Chair of Chapter 2 St. Louis University Health Sciences Center Harriet P. Dustan, M.D. University of Vermont College of Medicine Norman M. Kaplan, M.D., Chair of Chapter 3 University of Texas Southwestern Medical School Ray W. Gifford, Jr., M.D. Cleveland Clinic Foundation Keith C. Ferdinand, M.D., Chair of Chapter 4 Heartbeats Life Center Marvin Moser, M.D. Yale University School of Medicine slide 5 National High Blood Pressure Education Program Coordinating Committee Agency for Health Care Policy and Research American Academy of Family Physicians American Academy of Insurance Medicine American Academy of Neurology American Academy of Ophthalmology American Academy of Physician Assistants American Association of Occupational Health Nurses American College of Cardiology American College of Chest Physicians American College of Occupational and Environmental Medicine American College of Physicians American College of Preventive Medicine American Dental Association American Diabetes Association American Dietetic Association American Heart Association American Hospital Association American Medical Association American Nurses’ Association, Inc. American Optometric Association American Osteopathic Association American Pharmaceutical Association American Podiatric Medical Association American Public Health Association American Red Cross American Society of Health-System Pharmacists American Society of Hypertension Association of Black Cardiologists Citizens for Public Action on High Blood Pressure and Cholesterol, Inc. Council on Geriatric Cardiology Health Care Financing Administration Health Resources and Services Administration International Society on Hypertension in Blacks National Black Nurses’ Association, Inc. National Center for Health Statistics, Centers for Disease Control and Prevention National Heart, Lung, and Blood Institute National Hypertension Association National Institute of Diabetes and Digestive and Kidney Diseases National Kidney Foundation National Medical Association National Optometric Association National Stroke Association NHLBI Ad Hoc Committee on Minority Populations Society for Nutrition Education U.S. Department of Veterans’ Affairs slide 6 JNC VI Table of Contents 1. Introduction 2. Blood Pressure Measurement and Clinical Evaluation 3. Prevention and Treatment of High Blood Pressure 4. Special Populations and Situations slide 7 Purpose of the JNC VI Report To use evidence-based medicine and consensus to report on contemporary approaches to hypertension prevention and control for use by primary care clinicians. slide 8 Progress of the National High Blood Pressure Education Program • Increased awareness, treatment, and control • Decreased morbidity and mortality from stroke and coronary heart disease (CHD) slide 9 Public Health Challenges for the National High Blood Pressure Education Program • Prevent blood pressure rise with age • Decrease prevalence • Increase awareness and detection • Improve control • Reduce cardiovascular risks slide 10 Public Health Challenges for the National High Blood Pressure Education Program (continued) • Recognize importance of controlled isolated systolic hypertension • Recognize importance of high-normal blood pressure • Reduce demographic variations • Improve opportunities for treatment slide 11 Awareness, Treatment, and Control of High Blood Pressure in Adults* NHANES II NHANES III NHANES III 1976-80 (Phase 1) 1988-91 (Phase 2) 1991-94 Awareness 51% 73% 68.4% Treatment 31% 55% 53.6% Control** 10% 29% 27.4% * Adults age 18 to 74 years with SBP 140 mm Hg or DBP 90 mm Hg or taking antihypertensive medication. ** SBP < 140 mm Hg and DBP < 90 mm Hg. slide 12 Percent Decline in Age-Adjusted* Mortality Rates for Stroke by Sex and Race: United States, 1972-94 0 White men Percent decline -10 White women -20 Black men -30 Black women -40 -50 -60 -70 1970 1974 1978 1982 1986 1990 1994 Year The decline in age-adjusted mortality for stroke in the total population is 59.0%. *Age-adjusted to the 1940 U.S. census population. slide 13 Percent Decline in Age-Adjusted* Mortality Rates for CHD by Sex and Race: United States, 1972-94 Percent decline 0 White men -10 White women -20 Black men Black women -30 -40 -50 -60 1970 1974 1978 1982 1986 1990 1994 Year The decline in age-adjusted mortality for CHD in the total population is 53.2%. *Age-adjusted to the 1940 U.S. census population. slide 14 Rate per Million Population Incidence of Reported End-Stage Renal Disease Therapy, 1982-1995 253* 250 200 150 100 50 1983 1985 *Provisional data. Adjusted for age, race, and sex. 1987 1989 1991 1993 1995 Year slide 15 Prevalence of Heart Failure, by Age, 1976-80 and 1988-91 10% 1988-91 8% 6% 4% 1976-80 2% 0% 30 35 45 55 65 75 80 Age (Years) slide 16 Summary of Chapter 1 • Hypertension awareness, treatment, and control rates have increased over the past 3 decades. The rates of increase have lessened since JNC V. • Age-adjusted mortality for stroke and CHD declined during this time but now appear to be leveling. • The incidence of end-stage renal disease and the prevalence of heart failure are increasing. slide 17 Summary of Chapter 1 (continued) • Randomized controlled trials provide the best method of estimating benefit of treatment and source of information for clinical policy, but they have limitations. • Prevention and treatment of hypertension and target organ disease remain important public health challenges that must be addressed. slide 18 Blood Pressure Measurement • Patients should be seated with back supported and arm bared and supported. • Patients should refrain from smoking or ingesting caffeine for 30 minutes prior to measurement. • Measurement should begin after at least 5 minutes of rest. • Appropriate cuff size and calibrated equipment should be used. • Both SBP and DBP should be recorded. • Two or more readings should be averaged. slide 19 Advantages of Self-Measurement • • • • • Identifies “white-coat hypertension” Assesses response to medication Improves adherence to treatment Potentially reduces costs Usually provides lower readings than those recorded in clinic (hypertension is defined as SBP > 135 or DBP > 85 mm Hg) slide 20 Ambulatory Measurement • Ambulatory monitoring can provide: – readings throughout day during usual activities – readings during sleep to assess nocturnal changes – measures of SBP and DBP load • Ambulatory readings are usually lower than in clinic (hypertension is defined as SBP > 135 or DBP > 85 mm Hg) slide 21 Classification of Blood Pressure for Adults Category SBP (mm Hg) DBP (mm Hg) Optimal < 120 and < 80 Normal < 130 and < 85 High-normal 130-139 or 85-89 Hypertension Stage 1 Stage 2 Stage 3 140-159 160-179 180 or or or 90-99 100-109 110 When SBP and DBP fall into different categories, use the higher category. slide 22 Recommendations for Followup Based on Initial Measurements Initial Blood Pressure SBP DBP Followup Recommended < 130 < 85 Recheck in 2 years 130-139 85-89 Recheck in 1 year, give lifestyle advice 140-159 90-99 Confirm within 2 months, give lifestyle advice 160-179 100-109 180 110 Evaluate/refer to care within 1 month Evaluate/refer to care within 7 days slide 23 Evaluation Objectives • To identify known causes • To assess presence or absence of target organ damage and cardiovascular disease • To identify other risk factors or disorders that may guide treatment slide 24 Evaluation Components • Medical history • Physical examination • Routine laboratory tests • Optional tests slide 25 Medical History • Duration and classification of hypertension • Patient history of cardiovascular disease • Family history • Symptoms suggesting causes of hypertension • Lifestyle factors • Current and previous medications slide 26 Physical Examination • Blood pressure readings (2 or more) • Verification in contralateral arm • Height, weight, and waist circumference • Funduscopic examination • Examination of the neck, heart, lungs, abdomen, and extremities • Neurological assessment slide 27 Laboratory Tests and Other Diagnostic Procedures • Determine presence of target organ damage and other risk factors • Seek specific causes of hypertension slide 28 Laboratory Tests Recommended Before Initiating Therapy •Urinalysis •Complete blood count •Blood chemistry (potassium, sodium, creatinine, and fasting glucose) •Lipid profile (total cholesterol and HDL cholesterol) •12-lead electrocardiogram slide 29 Optional Tests and Procedures •Creatinine clearance •Microalbuminuria •24-hour urinary protein •Serum calcium •Serum uric acid •Fasting triglycerides •LDL cholesterol •Glycosolated hemoglobin •Thyroid-stimulating hormone •Plasma renin activity/ urinary sodium determination •Limited echocardiography •Ultrasonography •Measurement of ankle/arm index slide 30 Examples of Identifiable Causes of Hypertension • Renovascular disease • Pheochromocytoma • Renal parenchymal disease • Primary aldosteronism • Polycystic kidneys • Aortic coarctation • Cushing syndrome • Hyperparathyroidism • Exogenous causes slide 31 Components of Cardiovascular Risk in Patients With Hypertension Major Risk Factors: • Smoking • Dyslipidemia • Diabetes mellitus • Age older than 60 years • Sex (men or postmenopausal women) • Family history of cardiovascular disease slide 32 Clinical Risk Factors for Stratification of Patients With Hypertension • Heart diseases • Stroke or transient ischemic attack • Nephropathy • Peripheral arterial disease • Retinopathy slide 33 Risk Stratification Risk Group A No risk factors No target organ disease/clinical cardiovascular disease Risk Group B At least one risk factor, not including diabetes No target organ disease/clinical cardiovascular disease Risk Group C Target organ disease/clinical cardiovascular disease and/or diabetes With or without other risk factors slide 34 Treatment Strategies and Risk Stratification Blood Pressure Stages (mm Hg) Risk Group A Risk Group B Risk Group C High-normal (130-139/85-89) Lifestyle modification Lifestyle modification Drug therapy* Lifestyle modification Stage 1 (140-159/90-99) Lifestyle modification (up to 12 months) Lifestyle modification (up to 6 months)** Drug therapy Lifestyle modification Stages 2 and 3 ( 160/ 100) Drug therapy Lifestyle modification Drug therapy Lifestyle modification Drug therapy Lifestyle modification *For those with heart failure, renal insufficiency, or diabetes. **For those with multiple risk factors, clinicians should consider drugs as initial therapy plus lifestyle modifications. slide 35 Summary of Chapter 2 • Blood pressure classified as optimal, normal, high-normal, or stages 1, 2, or 3. • Recommendations for detection, confirmation, and evaluation remain consistent with those in the JNC V report. • In self-monitoring and ambulatory measurement, hypertension is now defined as SBP >135 mm Hg and DBP 85 mm Hg. slide 36 Summary of Chapter 2 (continued) • New sections discuss genetics and clinical clues to identifiable causes of hypertension. • New tables list cardiovascular risk factors and describe risk stratification. slide 37 Primary Prevention • Primary prevention offers an opportunity to interrupt the costly cycle of managing hypertension. • A population-wide approach can reduce morbidity and mortality. • Most patients with hypertension do not sufficiently change their lifestyle or adhere to drug therapy enough to achieve control. • Blood pressure rise with age is not inevitable. • Lifestyle modifications have been shown to lower blood pressure. slide 38 Goal of Hypertension Prevention and Management • To reduce morbidity and mortality by the least intrusive means possible. This may be accomplished by achieving and maintaining: – SBP < 140 mm Hg – DBP < 90 mm Hg – controlling other cardiovascular risk factors slide 39 Add agent from different class Substitute drug from different class Continue adding agents from other classes. Consider referral to a hypertension specialist. Not at Goal Blood Pressure Inadequate response but well tolerated No response or troublesome side effects Not at Goal Blood Pressure Initial Drug Choices Not at Goal Blood Pressure Begin or Continue Lifestyle Modifications Algorithm forTreatment of Hypertension Algorithm for Treatment of Hypertension (continued) Begin or Continue Lifestyle Modifications • Lose weight • Limit alcohol • Increase physical activity • Reduce Sodium • Maintain potassium • Maintain calcium and magnesium • Stop smoking • Reduce saturated fat, cholesterol Not at Goal Blood Pressure slide 41 Algorithm for Treatment of Hypertension (continued) Begin or Continue Lifestyle Modifications Not at Goal Blood Pressure (< 140/90 mm Hg) lower goals for patients with diabetes or renal disease Initial Drug Choices slide 42 Algorithm for Treatment of Hypertension (continued) Not at Goal Blood Pressure Initial Drug Choices Uncomplicated Specific Indications Compelling Indications – Start at low dose and titrate upward. – Low-dose combinations may be appropriate. Not at Goal Blood Pressure slide 43 Algorithm for Treatment of Hypertension (continued) Initial Drug Choices* Uncomplicated • Diuretics • -blockers *Based on randomized controlled trials. slide 44 Algorithm for Treatment of Hypertension (continued) Initial Drug Choices* Compelling Indications • Heart failure – ACE inhibitors – Diuretics • Myocardial infarction -blockers (non-ISA) – ACE inhibitors (with systolic dysfunction) • Diabetes mellitus (type 1) with proteinuria – ACE inhibitors • Isolated systolic hypertension (older persons) – Diuretics preferred – Long-acting dihydropyridine calcium antagonists *Based on randomized controlled trials. slide 45 Algorithm for Treatment of Hypertension (continued) Initial Drug Choices Specific indications for the following drugs: • ACE inhibitors • --blockers • Angiotensin II receptor • -blockers blockers • -blockers • Calcium antagonists • Diuretics slide 46 Specific Drug Indications Some antihypertensive drugs may have favorable effects on comorbid conditions: • Angina •Heart failure – -blockers –Carvedilol – Calcium antagonists –Losartan • Atrial tachycardia and fibrillation – -blockers •Myocardial infarction –Diltiazem –Verapamil – Nondihydropyridine calcium antagonists slide 47 Specific Indications (continued) Some antihypertensive drugs may have favorable effects on comorbid conditions: • Cyclosporine-induced •Dyslipidemia hypertension -blockers – Calcium antagonists •Prostatism (benign prostatic • Diabetes mellitus (1 and 2) hyperplasia) with proteinuria -blockers – ACE inhibitors (preferred) •Renal insufficiency (caution in – Calcium antagonists renovascular hypertension and creatinine 3 mg/dL • Diabetes mellitus (type 2) – Low-dose diuretics [ 265.2 mol/L]) –ACE inhibitors slide 48 Specific Indications (continued) Some antihypertensive drugs may have favorable effects on comorbid conditions: • Essential tremor – Noncardioselective -blockers • Hyperthyroidism – -blockers • Migraine •Osteoporosis – Thiazides •Perioperative hypertension – -blockers – Noncardioselective -blockers – Nondihydropyridine calcium antagonists slide 49 Algorithm for Treatment of Hypertension (continued) Initial Drug Choices Not at Goal Blood Pressure (< 140/90 mm Hg) No response or troublesome side effects Substitute another drug from different class Inadequate response but well tolerated Add second agent from different class (diuretic if not already used) Not at Goal Blood Pressure (<140/90 mmHg) slide 50 Algorithm for Treatment of Hypertension (continued) Substitute drug from different class Add second agent from different class Not at Goal Blood Pressure (< 140/90 mm Hg) Continue adding agents from other classes. Consider referral to a hypertension specialist. slide 51 Add agent from different class Substitute drug from different class Continue adding agents from other classes. Consider referral to a hypertension specialist. Not at Goal Blood Pressure Inadequate response but well tolerated No response or troublesome side effects Not at Goal Blood Pressure Initial Drug Choices Not at Goal Blood Pressure Begin or Continue Lifestyle Modifications Algorithm for Treatment of Hypertension Lifestyle Modifications For Prevention and Management For Overall and Cardiovascular Health • Lose weight if overweight. • Maintain adequate intake of calcium and magnesium. • Limit alcohol intake. • Increase aerobic physical activity. • Reduce sodium intake. • Stop smoking. • Reduce dietary saturated fat and cholesterol. • Maintain adequate intake of potassium. slide 53 Pharmacologic Treatment • Decreases cardiovascular morbidity and mortality based on randomized controlled trials. • Protects against stroke, coronary events, heart failure, progression of renal disease, progression to more severe hypertension, and all-cause mortality. slide 54 Special Considerations in Selecting Drug Therapy • Demographics • Coexisting diseases and therapies • Quality of life • Physiological and biochemical measurements • Drug interactions • Economic considerations slide 55 Drug Therapy • A low dose of initial drug should be used, slowly titrating upward. • Optimal formulation should provide 24-hour efficacy with once-daily dose with at least 50% of peak effect remaining at end of 24 hours. • Combination therapies may provide additional efficacy with fewer adverse effects. slide 56 Classes of Antihypertensive Drugs • ACE inhibitors • • • • • Adrenergic inhibitors Angiotensin II receptor blockers Calcium antagonists Direct vasodilators Diuretics slide 57 Combination Therapies • -adrenergic blockers and diuretics • ACE inhibitors and diuretics • Angiotensin II receptor antagonists and diuretics • Calcium antagonists and ACE inhibitors • Other combinations slide 58 Followup • Follow up within 1-2 months after initiating therapy. • Recognize that high-risk patients often require high dose or combination therapies and shorter intervals between changes in medications. • Consider reasons for lack of responsiveness if blood pressure is uncontrolled after reaching full dose. • Consider reducing dose and number of agents after 1 year at or below goal. slide 59 Causes for Inadequate Response to Drug Therapy • • • • • • Pseudoresistance Nonadherence to therapy Volume overload Drug-related causes Associated conditions Identifiable causes of hypertension slide 60 Guidelines for Improving Adherence to Therapy • Be aware of signs of nonadherence. • Establish goal of therapy. • Encourage a positive attitude about achieving goals. • Educate patients about the disease and therapy. • Maintain contact with patients. • Encourage lifestyle modifications. • Keep care inexpensive and simple. slide 61 Guidelines for Improving Adherence to Therapy (continued) • Integrate therapy into daily routine. • Prescribe long-acting drugs. • Adjust therapy to minimize adverse affects. • Continue to add drugs systematically to meet goal. • Consider using nurse case management. • Utilize other health professionals. • Try a new approach if current regime is inadequate. slide 62 Hypertensive Emergencies and Urgencies • Emergencies require immediate blood pressure reduction to prevent or limit target organ damage. • Urgencies benefit from reducing blood pressure within a few hours. • Elevated blood pressure alone rarely requires emergency therapy. • Fast-acting drugs are available. slide 63 Drugs Available for Hypertensive Emergencies Vasodilators Adrenergic Inhibitors •Nitroprusside •Labetalol •Nicardipine •Esmolol •Fenoldopam •Phentolamine •Nitroglycerin •Enalaprilat •Hydralazine slide 64 Summary of Chapter 3 • Modifying lifestyles in populations can have a major protective effect against high blood pressure and cardiovascular disease. • Lowering blood pressure decreases death from stroke, coronary events, and heart failure; slows progression of renal failure; prevents progression to more severe hypertension; and reduces all-cause mortality. • A diuretic and/or a -blocker should be chosen as initial therapy unless there are compelling or specific indications for another drug. slide 65 Summary of Chapter 3 (continued) • Management strategies can improve adherence through the use of multidisciplinary teams. • The reductions in cardiovascular events demonstrated in randomized controlled trials have important implications for managed care organizations. • Management of hypertensive emergencies requires immediate action whereas urgencies benefit from reducing blood pressure within a few hours. slide 66 Special Populations • Racial and ethnic groups • Children and adolescents • Women • Older persons slide 67 Racial and Ethnic Groups African Americans Hispanics Asian and Pacific Islanders Among the highest prevalence Early onset Delayed treatment Generally low prevalence Lowest control rate in Mexican Americans May be more responsive to treatment than other groups American Indians Similar prevalence to general population High prevalence of diabetes and obesity slide 68 Children and Adolescents • Blood pressure at 95th or higher percentile is considered elevated. • Lifestyle modifications should be recommended. • Drug therapy should be prescribed for higher levels of blood pressure. • Attempts should be made to determine other causes of high blood pressure and other cardiovascular risk factors. slide 69 95th Percentile of Blood Pressure by Selected Ages and Height in Girls SBP/DBP (mm Hg) Age 50th Percentile for Height 75th Percentile for Height 1 104/58 105/59 6 111/73 112/73 12 123/80 124/81 17 129/84 130/85 slide 70 95th Percentile of Blood Pressure by Selected Ages and Height in Boys SBP/DBP (mm Hg) Age 50th Percentile for Height 75th Percentile for Height 1 102/57 104/58 6 114/74 115/75 12 123/81 125/82 17 136/87 138/88 slide 71 Women • Clinical trials have not demonstrated significant differences between men and women in treatment response and outcomes. • Some women using oral contraceptives may have significant increases in blood pressure. • High blood pressure in not a contraindication to hormone replacement therapy. slide 72 Pregnant Women • Chronic hypertension is high blood pressure present before pregnancy or diagnosed before 20th week of gestation. • Preeclampsia is increased blood pressure that occurs in pregnancy (generally after the 20th week) and is accompanied by edema, proteinuria, or both. • ACE inhibitors and angiotensin II receptor blockers are contraindicated for pregnant women. • Methyldopa is recommended for women diagnosed during pregnancy. slide 73 Antihypertensive Drugs Used in Pregnancy These agents* may be used with chronic hypertension (DBP > 100 mm Hg) or acute hypertension (DBP > 105 mm Hg). Central -agonists Methyldopa is the drug of choice. -blockers and --blockers Atenolol, metoprolol, and labetalol appear safe and effective in late pregnancy. Calcium antagonists Potential synergism with magnesium sulfate may lead to precipitous hypotension. *Limited or no controlled trials in pregnant women. slide 74 Antihypertensive Drugs Used in Pregnancy (continued) These agents* may be used with chronic hypertension (DBP > 100 mm Hg) or acute hypertension (DBP > 105). Diuretics Diuretics are recommended for chronic hypertension if prescribed before gestation, but they are not recommended for preeclampsia. Direct vasodilators Hydralazine is the parenteral drug of choice based on its long history of safety and efficacy. *Limited or no controlled trials in pregnant women. ACE inhibitors and angiotensin II receptor blockers are contraindicated. slide 75 Older Persons • Hypertension is common. • SBP is better predictor of events than DBP. • Pseudohypertension and “white-coat hypertension” may indicate need for readings outside office. • Primary hypertension is most common cause, but common identifiable causes (e.g., renovascular hypertension) should be considered. slide 76 Older Persons (continued) • Therapy should begin with lifestyle modifications. • Starting doses for drug therapy should be lower than those used in younger adults. • Goal of therapy is the same (< 140/90 mm Hg) although an interim goal of SBP < 160 mm Hg may be necessary. slide 77 Special Situations • Cardiovascular diseases • Renal disease • Diabetes mellitus • Dyslipidemia • Sleep apnea • Bronchial asthma • Gout • Surgery • Various chemical agents slide 78 Cardiovascular Diseases • Cerebrovascular disease – Indication for treatment, except immediately after ischemic cerebral infarction • Coronary artery disease – Benefits of therapy well established • Left ventricular hypertrophy – Antihypertensive agents (except direct vasodilators) indicated – Reduced weight and decreased sodium intake beneficial slide 79 Cardiovascular Diseases (continued) • Cardiac failure – ACE inhibitors, especially with digoxin or diuretics, shown to prevent subsequent heart failure • Peripheral arterial disease – Limited or no data available slide 80 Renal Disease • Hypertension may result from renal disease that reduces functioning nephrons. • Evidence shows a clear relationship between high blood pressure and end-stage renal disease. • Blood pressure should be controlled to < 130/85 mm Hg or lower (< 125/75 mm Hg) in patients with proteinuria in excess of 1 gram per 24 hours. • ACE inhibitors work well to control blood pressure and slow progression of renal failure. slide 81 Diabetes Mellitus • Drug therapy should begin along with lifestyle modifications to reduce blood pressure to < 130/85 mm Hg. • ACE inhibitors, -blockers, calcium antagonists, and low dose-diuretics are preferred. • Insulin resistance or high peripheral insulin levels may cause hypertension, which can be treated with lifestyle changes, insulin-sensitizing agents, vasodilating antihypertensive drugs, and lipid-lowering agents. slide 82 Dyslipidemia • Coexistence of hypertension and dyslipidemia requires aggressive management. • Emphasis should be on weight loss; reduced intake of saturated fat, cholesterol, sodium, and alcohol; and increased physical activity. • Lifestyle changes and hypolipidemic agents should be used to reach appropriate goals. slide 83 Sleep Apnea • Obstructive sleep apnea is more common in patients with hypertension and is associated with several adverse clinical consequences. • Improved hypertension control has been reported following treatment of sleep apnea. slide 84 Bronchial Asthma or Chronic Airway Disease • Elevated blood pressure is common in acute asthma and is possibly related to treatment with systemic corticosteroids or -agonists. -blockers and--blockers may exacerbate asthma. • ACE inhibitors only rarely induce bronchospasm. • Over-the-counter medications are generally safe in limited doses for patients on drug therapy. slide 85 Gout • Diuretics can increase serum uric acid levels. • Diuretics should be avoided in patients with gout. • Diuretic-induced hyperuricemia does not require treatment in the absence of gout or urate stones. slide 86 Patients Undergoing Surgery • When possible, surgery should be delayed until blood pressure is < 180/110 mm Hg. • Those not on prior drug therapy may be best treated with cardioselective-blockers before and after surgery. • Those with controlled blood pressure should continue medication until surgery and begin as soon after surgery as possible. slide 87 Cocaine and Amphetamines • Cocaine abuse must be considered in patients presenting to the emergency department with hypertension-related problems. • Nitroglycerin is indicated to reverse cocaine-related coronary vasoconstriction. • Acute amphetamine toxicity is similar to that of cocaine but longer in duration. • Ongoing cocaine abuse does not appear to cause chronic hypertension. slide 88 Immunosuppressive Agents • Immunosuppressive regimens produce widespread vasoconstriction in both transplant and nontransplant situations. • Treatment is based on vasodilation including dihydropyridine calcium antagonists. slide 89 Erythropoietin • Erythropoietin often increases blood pressure in treatment of patients with end-stage renal disease. • Management includes optimal volume control, antihypertensive agents, and reducing erythopoietin dose or changing method of administration. slide 90 Other Chemical Agents That May Induce Hypertension • Mineralocorticoids and derivatives • Anabolic steroids • Monoamine oxidase inhibitors • Lead • Cadmium • Bromocriptine slide 91 Summary of Chapter 4 • Racial and ethnic groups are growing segments of our society. The prevalence of hypertension and control rates differ across groups. Clinicians should be aware of social and cultural factors when managing hypertension. • Guidelines are provided for management of children and women with hypertension. • In older persons, diuretics are preferred and long-acting dihydropyridine calcium antagonists may be considered. slide 92 Summary of Chapter 4 (continued) • Specific therapy for patients with left ventricular hypertrophy, coronary artery disease, and heart failure are outlined. • Patients with renal insufficiency with greater than 1 g/day of proteinuria should be treated to a goal of 125/75 mm Hg; those with less proteinuria should be treated to 130/85 mm Hg. ACE inhibitors have additional renoprotective effects. • Patients with diabetes should be treated to a therapy goal of below 130/85 mm Hg. slide 93 A Population-Wide Strategy A population-wide strategy to reduce overall blood pressure by only a few mm Hg could affect overall cardiovascular morbidity and mortality as much as or more than treatment alone. slide 94