Treatment of High Blood Pressure
The first-line treatment for hypertension includes lifestyle modifications alongside pharmacological therapy with thiazide/thiazide-like diuretics (such as chlorthalidone), calcium channel blockers (CCBs), or ACE inhibitors/ARBs, with medication selection based on patient characteristics and comorbidities. 1, 2
Classification of Blood Pressure
Understanding blood pressure categories is essential for treatment decisions:
| Category | Systolic BP | Diastolic BP |
|---|---|---|
| Normal BP | <120 mmHg | <80 mmHg |
| Elevated BP | 120-129 mmHg | <80 mmHg |
| Stage 1 Hypertension | 130-139 mmHg | 80-89 mmHg |
| Stage 2 Hypertension | ≥140 mmHg | ≥90 mmHg |
Lifestyle Modifications
All patients with hypertension should implement these evidence-based lifestyle changes:
Dietary modifications:
Physical activity:
Weight management:
- Target BMI of 20-25 kg/m²
- Approximately 1 mmHg systolic BP reduction per 1 kg weight loss 1
Alcohol limitation:
Smoking cessation 3
Pharmacological Treatment
First-Line Medications
Thiazide/Thiazide-like diuretics:
Calcium Channel Blockers (CCBs):
- Effective first-line therapy, especially for isolated systolic hypertension
- Reduces stroke incidence by 42% 1
ACE inhibitors/ARBs:
Patient-Specific Considerations
- For Black patients: Initial treatment with a diuretic or CCB, either alone or with a RAS blocker 1
- For patients with diabetes or albuminuria: ACE inhibitors or ARBs as first-line treatment 1
- For elderly patients (>80 years): Target BP of 140-145 mmHg if well tolerated 1
- For adults aged 60+ years: Target systolic BP of 120-129 mmHg if tolerated 1
Effective Combination Therapies
When monotherapy is insufficient, consider these combinations:
- Diuretic + ACE inhibitor
- Diuretic + angiotensin receptor blocker
- Diuretic + calcium channel blocker 1
Target Blood Pressure Goals
- General population: <140 mmHg systolic and close to 130 mmHg if tolerated
- Elderly (>80 years): 140-145 mmHg if well tolerated
- Adults with chronic kidney disease: 120-129 mmHg if eGFR >30 mL/min/1.73m² 1
Important Monitoring Considerations
- Check for orthostatic hypotension, especially in elderly patients
- Regular monitoring of blood pressure, renal function, and electrolytes
- Encourage home blood pressure monitoring
- Consider referral to a hypertension specialist if BP remains elevated despite 6 months of treatment 1
Common Pitfalls to Avoid
- Excessive BP lowering: Reducing systolic BP below 120 mmHg or diastolic below 60 mmHg may increase cardiovascular risk, particularly in patients with coronary artery disease 1
- Medication non-adherence: Continue lifestyle modifications even after starting medications to enhance efficacy and potentially reduce medication requirements 7
- Inadequate follow-up: Regular monitoring is essential to ensure treatment efficacy and detect adverse effects 1
- Neglecting comorbidities: Treatment should account for conditions like diabetes, kidney disease, and heart failure 6, 2