HIV and Hypertension: Understanding the Link and Cardiovascular Risk

Why Hypertension Is More Common in People with HIV

People living with HIV (PLWH) have a 1.5–2x higher risk of hypertension than the general population. Multiple interconnected mechanisms drive this:

1. Kidney Impairment (HIV-Associated Nephropathy)

• HIV directly infects renal cells; ART can cause nephrotoxicity (especially tenofovir DF).
• Impaired fluid/electrolyte balance → volume overload → elevated BP.
• Proteinuria accelerates vascular damage.

2. Chronic Inflammation & Immune Activation

• Persistent inflammation (even on ART) damages endothelium.
• Reduced nitric oxide bioavailability → impaired vasodilation.
• Arterial stiffness increases systolic pressure.

3. Autonomic Nervous System Dysfunction

• HIV affects autonomic regulation → sympathetic overactivity.
• Increased heart rate, vasoconstriction, reduced baroreflex sensitivity.

4. ART Medication Effects

• Protease inhibitors: Insulin resistance, dyslipidemia, endothelial dysfunction.
• Integrase inhibitors: Weight gain (especially dolutegravir, bictegravir) → metabolic syndrome.
• Older NRTIs: Mitochondrial toxicity → metabolic disturbances.

5. Opportunistic Infections & Comorbidities

• CMV, TB, fungal infections → systemic inflammation.
• Hepatitis B/C coinfection → additional vascular risk.

6. Traditional Risk Factors (Often Clustered in PLWH)

• Higher smoking rates
• Substance use (alcohol, stimulants)
• Obesity/weight gain on ART
• Physical inactivity
• Psychosocial stress, food insecurity

Clinical Implications

• Screen BP at every visit. Target <130/80 mmHg (per ACC/AHA).
• Prefer ART regimens with lower metabolic impact (e.g., TAF over TDF, avoid boosting if possible).
• Aggressive lifestyle intervention: DASH diet, exercise, smoking cessation, weight management.
• First-line antihypertensives: ACEi/ARB (renal protection), CCB, thiazide. Avoid drug interactions with ART.
• Monitor kidney function, lipids, glucose regularly.

Bottom Line

Hypertension in HIV is multifactorial but manageable. Integrated HIV-primary care reduces cardiovascular events—the leading cause of death in well-treated PLWH.