Hypertension Management Guidelines

Initial Treatment Strategy

The American College of Cardiology recommends thiazide-type diuretics, specifically chlorthalidone 12.5-25 mg daily, as the optimal first-line drug for initial treatment of hypertension in most patients, with calcium channel blockers (CCBs) as the preferred alternative when diuretics are not tolerated 1, 2
For Stage 1 Hypertension, initiate with a single antihypertensive agent and titrate dosage before adding sequential agents to reach BP target <130/80 mmHg 2, 3
For Stage 2 Hypertension, start with 2 first-line agents of different classes, either as separate medications or fixed-dose combination, particularly important in older patients, though careful BP monitoring is needed to avoid hypotension 1, 2, 3

Chlorthalidone 12.5-25 mg daily is superior to other first-line agents based on the largest head-to-head trial (ALLHAT) 1, 2
Chlorthalidone demonstrated superiority over amlodipine for heart failure prevention (38% lower risk) and over lisinopril for stroke prevention (15% lower risk) 1, 4
Diuretics are significantly more effective than CCBs for preventing heart failure and more effective than beta-blockers for preventing stroke and cardiovascular events 1, 3
CCBs are as effective as diuretics for all cardiovascular events except heart failure 1, 2, 3

For black patients without comorbidities, initiate with thiazide diuretic (especially chlorthalidone) or CCB 1, 2, 5
For patients with diabetes, ACE inhibitors or ARBs are preferred initial agents, particularly when albuminuria or established coronary artery disease is present 6, 5
For patients with chronic kidney disease, ACE inhibitors or ARBs are preferred to reduce progressive kidney disease, especially with albuminuria 5

Beta-blockers are not recommended for uncomplicated hypertension due to inferior efficacy 2, 3, 5
Alpha-blockers are not used as first-line therapy due to inferior cardiovascular disease prevention 1, 2, 3, 5

Maintain potassium >3.5 mmol/L when using thiazide diuretics to avoid increased ventricular ectopy 5
Monitor potassium and renal function within 7-14 days after starting diuretics, ACE inhibitors, or ARBs 6, 5
Never combine ACE inhibitors with ARBs due to lack of added benefit and increased adverse events 5