Hypertensive Crisis Diagnosis and Management

Definition and Classification

• The American College of Cardiology defines hypertensive crisis as blood pressure ≥180/110 mmHg and classifies it as either hypertensive emergency (with acute end-organ damage) or hypertensive urgency (without end-organ damage) 1, 2

Diagnostic Evaluation

• The European Heart Journal recommends a focused clinical history, including symptoms of emergency, non-adherence to medication, and duration of hypertension 2, 3
• A directed physical examination, including blood pressure measurement in both arms and legs, fundoscopy, and cardiovascular and neurological evaluation, is essential 2, 5, 6

Laboratory and Imaging Tests

• Basic laboratory tests, such as complete blood count, serum creatinine, and urinalysis, are recommended 2, 3
• Imaging tests, such as electrocardiogram, chest X-ray, and echocardiography, may be necessary to evaluate end-organ damage 2, 3, 5

Management of Hypertensive Emergency

• The American College of Cardiology recommends reducing blood pressure by no more than 25% in the first hour, followed by gradual reduction to 160/100 mmHg over 2-6 hours 1
• Intravenous medications, such as nicardipine, labetalol, and fenoldipine, are recommended as first-line treatment 1

Management of Hypertensive Urgency

• The American College of Cardiology recommends ambulatory management with oral anti-hypertensive medications, without the need for immediate blood pressure reduction or hospitalization 1, 7
• The European Heart Journal recommends lifestyle modifications, including sodium restriction, regular exercise, and a healthy diet, to manage hypertension 5

Lifestyle Modifications

• The European Heart Journal recommends a Mediterranean or DASH diet, weight loss, and regular exercise to manage hypertension 5
• Smoking cessation and limiting alcohol intake are also recommended 5

Common Pitfalls

• The American College of Cardiology warns against confusing hypertensive urgency with emergency, and against excessive blood pressure reduction, which can cause end-organ damage 1
• The European Heart Journal recommends investigating non-adherence to medication and excluding white-coat hypertension before intensifying treatment 5, 8