Initial Treatment for Hypertension
Introduction to Hypertension Management
- The American College of Cardiology recommends starting with lifestyle modifications immediately, and initiating pharmacologic therapy with a single first-line agent if blood pressure is 130-150/80-90 mmHg, or starting with two agents simultaneously if blood pressure is ≥150/90 mmHg or ≥160/100 mmHg 1, 2
Confirming the Diagnosis
- The American Heart Association suggests confirming hypertension using out-of-office measurements before initiating treatment—either home blood pressure monitoring (≥135/85 mmHg) or 24-hour ambulatory monitoring (≥130/80 mmHg)—rather than relying solely on office readings 1
Lifestyle Modifications
- The American College of Cardiology recommends implementing dietary changes, such as following a DASH or Mediterranean eating pattern, emphasizing 8-10 servings/day of fruits and vegetables, 2-3 servings/day of low-fat dairy products, and reduced saturated/trans fats 1, 3
- The American Heart Association suggests limiting sodium intake to <2,300 mg/day (ideally <1,500 mg/day) 1, 3
- The American College of Cardiology recommends increasing potassium intake through dietary sources 1, 3
- The American Heart Association suggests achieving caloric restriction if overweight (BMI ≥25 kg/m²) 1
- The American College of Sports Medicine recommends engaging in at least 150 minutes of moderate-intensity aerobic exercise per week 1, 3
- The National Institute on Alcohol Abuse and Alcoholism suggests limiting alcohol intake to ≤2 drinks/day for men, ≤1 drink/day for women 1, 3
- The American Heart Association recommends smoking cessation for all patients 1, 3
Pharmacologic Therapy
- The American College of Cardiology recommends starting with a single antihypertensive agent from first-line options for blood pressure 130-150/80-90 mmHg 1, 2
- The American Heart Association suggests initiating pharmacotherapy immediately if the patient has high cardiovascular risk: established CVD, chronic kidney disease, diabetes, target organ damage, or 10-year ASCVD risk ≥10% 1, 2, 3
- For blood pressure ≥150/90 mmHg or ≥160/100 mmHg, the American College of Cardiology recommends starting with two antihypertensive agents simultaneously from different classes, preferably as a single-pill combination to improve adherence 1, 2, 4
First-Line Pharmacologic Agents
- The American College of Cardiology recommends choosing from four classes: ACE inhibitors, ARBs, thiazide-like diuretics, or dihydropyridine calcium channel blockers, all equally effective at reducing cardiovascular events 1
Special Population Considerations
- For black patients, the American Heart Association suggests initial therapy should include ARB + dihydropyridine calcium channel blocker or calcium channel blocker + thiazide-like diuretic due to reduced response to ACE inhibitors as monotherapy 1, 3
- For patients with diabetes, the American Diabetes Association recommends using ACE inhibitor or ARB as first-line therapy to reduce risk of progressive kidney disease 2, 4
- For patients with chronic kidney disease or albuminuria, the National Kidney Foundation suggests initial treatment should include ACE inhibitor or ARB to reduce risk of progressive kidney disease 1, 3
- For patients with coronary artery disease, the American College of Cardiology recommends using ACE inhibitor or ARB as first-line therapy, and adding beta-blocker if history of myocardial infarction, active angina, or heart failure with reduced ejection fraction 1, 2, 4
Blood Pressure Targets
- The American College of Cardiology recommends a blood pressure target of <130/80 mmHg for most adults <65 years, and systolic <130 mmHg if well-tolerated for adults ≥65 years 1, 2
- For patients with diabetes, CKD, or established CVD, the American Heart Association suggests a blood pressure target of <130/80 mmHg 2
Monitoring and Follow-Up
- The American College of Cardiology recommends rechecking blood pressure in 1 month after initiating therapy, and monitoring serum creatinine and potassium 7-14 days after starting or adjusting doses of ACE inhibitors, ARBs, or diuretics 1, 3, 2
- The American Heart Association suggests watching for hyperkalemia with ACE inhibitors/ARBs and hypokalemia with diuretics, and titrating to full dose of initial agent before adding a second drug if starting with monotherapy 1, 4, 2