Hypertension Management

Introduction to Hypertension Management

Hypertension management involves evaluating for end-organ damage and providing appropriate follow-up for patients without evidence of acute target organ injury, rather than rapidly lowering blood pressure in asymptomatic patients, as rapid lowering may be harmful, according to the European Society of Cardiology 1, 2
The emergency physician provides the greatest benefit by identifying patients at risk with elevated blood pressure and arranging prompt follow-up with their primary physician, rather than initiating acute treatment in the ED, as suggested by the American College of Emergency Physicians 1

Metoprolol 2.5-5.0 mg IV over 2 min can be considered for short-acting antihypertensive therapy, which can be repeated up to 3 doses, according to the American College of Cardiology 3
The following intravenous medications are recommended for acute hypertension:

Medication	Initial Dose	Titration
Nicardipine	5 mg/h IV	Increase by 2.5 mg/h every 5 minutes, maximum 15 mg/h
Clevidipine	1-2 mg/h IV	Double dose every 90 seconds initially, then adjust more gradually
Labetalol	0.3-1.0 mg/kg IV (maximum 20 mg)	Slow injection every 10 minutes or 0.4-1.0 mg/kg/h IV infusion
Esmolol	0.5-1 mg/kg IV bolus	50-300 μg/kg/min continuous infusion
Sodium nitroprusside	0.3-0.5 mcg/kg/min IV	Increase in increments of 0.5 mcg/kg/min, with caution for cyanide toxicity

Oral antihypertensive therapy should be initiated upon discontinuation of IV medication, with the first dose of nicardipine capsules administered 1 hour prior to discontinuation of the infusion, as recommended by the American Heart Association 7
Beta-blockers, such as esmolol, metoprolol, and labetalol, are contraindicated in patients with heart block or bradycardia, as they can further decrease heart rate and worsen bradycardia, as warned by the European Society of Cardiology 6

The European Society of Cardiology recommends a target BP goal of <140/90 mmHg initially, with an optimal target of 120-129 mmHg systolic if tolerated, for the general population 2
BP goals should be individualized based on comorbidities and risk factors, according to the American College of Physicians 8
Specific blood pressure targets for different conditions include:

The European Society of Cardiology recommends lifestyle modifications such as sodium restriction to approximately 2g per day, regular physical activity, weight management, limited alcohol consumption, and adoption of a Mediterranean or DASH diet 2
Smoking cessation is also recommended for patients with hypertension 2
Implement lifestyle modifications, including weight management, physical activity, smoking cessation, and moderate alcohol consumption, to reduce the risk of stroke and cardiovascular disease, as recommended by the American Heart Association 12

Black patients should be initially treated with a diuretic or calcium channel blocker, either alone or with a RAS blocker 2
Elderly patients may require slightly higher BP goals, approximately 10 mmHg higher on average, according to the American College of Physicians 8
The American Society of Anesthesiologists recommends avoiding beta-blockers in the acute setting as they can worsen pulmonary edema by decreasing heart rate and cardiac output 13

Failure to assess for end-organ damage, which determines treatment urgency, is a common pitfall in hypertension management, according to the American College of Physicians 8
It is essential to screen for underlying causes of severe hypertension, as emphasized by the European Heart Society 2
The European Society of Cardiology recommends screening for secondary hypertension in all patients with hypertensive emergency 2
If secondary causes of hypertension are suspected, screening for pheochromocytoma, primary aldosteronism, or thyroid disease should be considered, and beta-blockers should be avoided as sole therapy if pheochromocytoma is suspected 6