Management of Accelerated Hypertension

Definition and Initial Assessment

Accelerated hypertension is characterized by severely elevated blood pressure with acute hypertension-mediated organ damage, and the American College of Cardiology recommends immediate assessment for retinopathy, acute renal failure, and/or thrombotic microangiopathy 1
Critical assessment priorities include fundoscopic examination for retinal hemorrhages, cotton wool spots, or papilledema, and neurological examination for altered mental status, headache with vomiting, visual disturbances, or seizures suggesting hypertensive encephalopathy 2

The American Heart Association recommends ICU admission for continuous arterial blood pressure monitoring and parenteral therapy, with arterial line placement for precise continuous monitoring 2, 1
The European Society of Cardiology recommends a standard approach of reducing mean arterial pressure by 20-25% over the first hour, followed by gradual normalization over 24-48 hours 2, 1

The American College of Cardiology recommends labetalol as the first-line agent for most cases of accelerated hypertension, including malignant hypertension with renal failure and hypertensive encephalopathy 2, 1
The European Heart Journal recommends nicardipine as an excellent alternative, particularly for hypertensive encephalopathy, as it preserves cerebral blood flow and does not increase intracranial pressure 2

In cases of acute ischemic stroke, the American Heart Association recommends avoiding blood pressure reduction unless BP >220/120 mmHg, and reducing mean arterial pressure by 15% over 1 hour if BP >220/120 mmHg 1, 2
In cases of acute hemorrhagic stroke, the European Heart Journal recommends not lowering BP immediately if systolic BP <220 mmHg, and carefully reducing to <180 mmHg with IV therapy if systolic BP ≥220 mmHg 3, 1

After stabilization, the American College of Cardiology recommends transitioning to oral antihypertensive therapy with a combination of RAS blockers, calcium channel blockers, and diuretics 2
The European Society of Cardiology recommends fixed-dose single-pill combination treatment for long-term management, with a long-term target of systolic BP 120-129 mmHg for most adults 2

The American Heart Association recommends screening for secondary hypertension causes, including renal artery stenosis, pheochromocytoma, and primary aldosteronism 2, 1, 3

The European Heart Journal recommends reducing mean arterial pressure by 20-25% over the first hour, then if stable, reduce to 160/100 mmHg over the next 2-6 hours, followed by cautious normalization over 24-48 hours, in patients with accelerated hypertension 4
For patients with acute hemorrhagic stroke, the European Heart Journal suggests that if systolic BP ≥220 mmHg, carefully reduce to <180 mmHg with IV therapy, and immediate BP lowering (within 6 hours) to systolic target of 140-160 mmHg may prevent hematoma expansion 4