Hypertension Management
Initial Treatment Strategy
For most adults with confirmed hypertension (BP ≥140/90 mmHg), initiate combination therapy immediately with two first-line agents—preferably a RAS blocker (ACE inhibitor or ARB) combined with either a calcium channel blocker or thiazide/thiazide-like diuretic—as a single-pill combination to improve adherence and achieve target blood pressure. 1, 2
Diagnosis and Confirmation
- Confirm hypertension with multiple measurements using a validated device, with the patient seated and arm at heart level, taking at least two readings per visit 1
- Consider ambulatory blood pressure monitoring for suspected white coat hypertension, unusual BP variability, or resistant hypertension 1
- Perform baseline investigations including urinalysis, serum electrolytes, creatinine, glucose, lipid panel, and 12-lead ECG 1
- Calculate 10-year cardiovascular disease risk to guide treatment intensity for patients with borderline hypertension (130-139/80-89 mmHg) 1
Lifestyle Modifications (Essential for All Patients)
- Weight management: Target BMI 20-25 kg/m² and waist circumference <94 cm (men) or <80 cm (women) 1
- Exercise: Minimum 150 minutes/week of moderate-intensity aerobic activity or 75 minutes/week of vigorous activity, plus resistance training 2-3 times weekly 1
- Dietary changes: Adopt a DASH-style diet emphasizing vegetables, fruits, fish, nuts, and unsaturated fatty acids while restricting free sugars to <10% of energy intake 1, 3
- Sodium restriction: Avoid table salt and limit dietary sodium 1
- Alcohol limitation: Men ≤14 units/week, women ≤8 units/week 1
- Smoking cessation: Mandatory for all patients 1
Pharmacological Treatment Algorithm
Step 1: Initial Dual Therapy
- Start with a two-drug combination at low doses: RAS blocker (ACE inhibitor or ARB) plus either a dihydropyridine calcium channel blocker OR a thiazide/thiazide-like diuretic 1, 2
- Use single-pill fixed-dose combinations whenever possible to enhance adherence 1, 2
- The four first-line drug classes are: ACE inhibitors, ARBs, dihydropyridine CCBs, and thiazide/thiazide-like diuretics 2, 3
Step 2: Triple Therapy
- If BP remains uncontrolled after 4 weeks, escalate to triple therapy: RAS blocker + CCB + thiazide/thiazide-like diuretic, preferably as a single-pill combination 1, 2
Step 3: Resistant Hypertension
- For BP uncontrolled on triple therapy, add spironolactone as fourth-line agent 1, 4
- Reassess adherence, screen for secondary causes, and consider specialist referral 2
Blood Pressure Targets
- Adults <65 years: Target systolic BP 120-129 mmHg and diastolic BP <80 mmHg if well tolerated 1
- Adults ≥65 years: Target systolic BP 130-139 mmHg 1
- Adults ≥85 years or with symptomatic orthostatic hypotension: Consider more lenient targets (<140/90 mmHg) 1
- High-risk patients (diabetes, CKD, established CVD): Target <130/80 mmHg 1, 4
- CKD with eGFR >30 mL/min/1.73m²: Target systolic BP 120-129 mmHg 1, 2
Special Population Considerations
Black Patients
- Initial therapy should include a thiazide-like diuretic plus CCB, or CCB plus ARB 4
- Among RAS inhibitors, prefer ARBs over ACE inhibitors due to 3-fold higher risk of angioedema with ACE inhibitors in this population 4
- Single-pill combinations are particularly important given higher rates of resistant hypertension 4
Patients with Coronary Artery Disease
- Target BP <130/80 mmHg (<140/80 in elderly) 4
- Use RAS blockers and beta-blockers as first-line agents, with or without CCBs 4
- Add lipid-lowering therapy targeting LDL-C <55 mg/dL (1.4 mmol/L) 4
- Initiate antiplatelet therapy with aspirin unless contraindicated 4
Patients with Heart Failure
- HFrEF: Use RAS blockers, beta-blockers, and mineralocorticoid receptor antagonists; consider ARNI (sacubitril-valsartan) as alternative to ACE inhibitor/ARB 4, 1
- HFpEF: Consider SGLT2 inhibitors 1
- Target BP <130/80 mmHg but >120/70 mmHg 4
Patients with Previous Stroke/TIA
- Target systolic BP 120-130 mmHg 1
- Use RAS blockers, CCBs, and diuretics as first-line agents 4
- Add lipid-lowering therapy targeting LDL-C <70 mg/dL (1.8 mmol/L) for ischemic stroke 4
- Antiplatelet therapy for ischemic stroke only; carefully consider in hemorrhagic stroke 4
Patients with Chronic Kidney Disease
- Include RAS blocker when albuminuria/proteinuria is present 1, 4
- Target systolic BP 120-129 mmHg for eGFR >30 mL/min/1.73m² 1
Patients with Diabetes
- Initiate treatment at BP ≥140/90 mmHg 4
- Target BP <130/80 mmHg 4, 1
- RAS blockers are preferred when proteinuria is present 2
Critical Pitfalls to Avoid
- Never combine two RAS blockers (ACE inhibitor + ARB)—this increases adverse effects without additional benefit 1, 2
- Do not rely on single office readings; confirm diagnosis with multiple measurements and consider ambulatory monitoring 1
- Avoid inadequate dosing or inappropriate drug combinations 1
- Do not neglect lifestyle modifications alongside pharmacological treatment 1
- Avoid delayed treatment intensification when BP remains uncontrolled on current regimen 2
- Do not overlook assessment of medication adherence before adding new agents 2
Enhancing Adherence
- Prescribe single-pill fixed-dose combinations whenever possible 1, 2
- Use once-daily dosing regimens 2
- Implement home blood pressure monitoring for patient feedback 2
- Employ multidisciplinary team approaches involving pharmacists 4, 2
- Use objective methods to assess adherence (pharmacy records, pill counting, electronic monitoring) rather than subjective patient reporting 4
Monitoring and Follow-Up
- Regular BP monitoring using both office and home readings 1
- For patients with hypertensive emergency history, monthly follow-up until target BP achieved and target organ damage regresses 4
- Annual cardiovascular risk reassessment 1
- Continue lifelong BP-lowering treatment if well tolerated, even beyond age 85 1