Management of Hypertension in High-Risk Patients

Introduction to Guideline-Based Therapy

The International Society of Hypertension recommends immediate initiation of dual antihypertensive therapy with an ACE inhibitor or ARB plus a calcium channel blocker for patients with Grade 2 hypertension and high-risk features such as diabetes and prior stroke 1, 2, 3
The American Diabetes Association suggests that patients with diabetes and hypertension should be treated with an ACE inhibitor or ARB as first-line therapy, particularly those with cardiovascular disease 3, 7

The International Society of Hypertension 2020 guidelines recommend starting with an ACE inhibitor (or ARB if ACE inhibitor not tolerated) plus a dihydropyridine calcium channel blocker as the initial two-drug regimen 1, 2, 3, 7
Renin-angiotensin system inhibitors offer unique cardiovascular protection beyond blood pressure lowering in diabetic patients with established CVD 8, 3

Poor adherence is the most common cause of apparent treatment-resistant hypertension and must be addressed systematically 9, 10
Implementing once-daily dosing with medications that have 24-hour efficacy can minimize dosing frequency and improve adherence 1, 2

The target blood pressure is <140/90 mmHg at minimum, with consideration of <130/80 mmHg if tolerated without adverse effects 1, 2, 3, 7
The American Diabetes Association recommends <140/90 mmHg as the general target, with <130/80 mmHg for patients at higher cardiovascular risk 3, 7

Initiate lifestyle modifications simultaneously with pharmacologic therapy, as these provide additive blood pressure reduction of 10-20 mmHg 3, 7, 9
Sodium restriction to <2,300 mg/day, weight loss if overweight or obese, DASH-style dietary pattern, moderate alcohol intake, and regular aerobic physical activity are recommended 3, 7

Recheck blood pressure within 2-4 weeks after initiating therapy to assess response and tolerability 1, 3
Monitor serum creatinine and potassium at baseline and within 2-4 weeks after starting ACE inhibitor/ARB, then at least annually 3, 7

If blood pressure remains uncontrolled on maximum doses of ACE inhibitor/ARB plus calcium channel blocker, add a thiazide-like diuretic (chlorthalidone or indapamide preferred over hydrochlorothiazide) 1, 2, 3, 7
Thiazide-like diuretics are proven to reduce cardiovascular events and are the preferred third agent in the ISH stepwise algorithm 1, 2, 7