Management of Hypertensive Crisis

Critical First Step: Emergency vs. Urgency

The American College of Cardiology recommends determining if acute target organ damage is present to dictate whether IV or oral therapy is needed 1, 2
Hypertensive emergency is defined as BP >180/120 mmHg WITH evidence of acute organ damage, such as hypertensive encephalopathy, intracerebral hemorrhage, acute MI, acute heart failure with pulmonary edema, aortic dissection, acute kidney injury, or eclampsia 1, 2, 4
The American College of Cardiology recommends immediate ICU admission with continuous arterial line monitoring for hypertensive emergencies (Class I recommendation) 1, 4

The American College of Cardiology recommends nicardipine as the preferred first-line agent for hypertensive emergencies, starting at 5 mg/hr and titrating by 2.5 mg/hr every 15 minutes to a maximum of 15 mg/hr, with a goal of reducing mean arterial pressure by 20-25% within the first hour 1, 2, 3
Nicardipine has a rapid onset of 5-15 minutes and a duration of 30-40 minutes 3
The American College of Cardiology recommends labetalol as an alternative first-line agent, with a dosing regimen of 10-20 mg IV bolus over 1-2 minutes, repeat/double every 10 minutes (max 300 mg cumulative), OR 2-4 mg/min continuous infusion 1, 2, 3

The American College of Cardiology recommends esmolol (beta-blocker) PLUS nitroprusside or clevidipine as the first-line treatment for acute aortic dissection, with a target SBP ≤120 mmHg AND heart rate <60 bpm within 20 minutes 1, 3
The American College of Cardiology recommends nitroglycerin IV (5-100 mcg/min), often combined with labetalol, as the first-line treatment for acute coronary syndrome/myocardial ischemia, with a target SBP <140 mmHg immediately 1, 3

The American College of Cardiology recommends reducing MAP by 20-25% within the first hour, then <160/100 mmHg over 2-6 hours for most hypertensive emergencies 1, 2, 3, 4
The American College of Cardiology recommends a more aggressive target of SBP ≤120 mmHg within 20 minutes for acute aortic dissection 1, 3

The American College of Cardiology recommends captopril (ACE inhibitor), labetalol (combined alpha/beta-blocker), or extended-release nifedipine (calcium channel blocker) as first-line oral agents for hypertensive urgency 2
The American College of Cardiology recommends reducing SBP by no more than 25% within the first hour, then <160/100 mmHg over 2-6 hours for hypertensive urgency 2

The American College of Cardiology recommends avoiding sodium nitroprusside due to the risk of cyanide toxicity, especially with prolonged use (>48-72 hours) or renal/hepatic failure 1, 3
The American College of Cardiology recommends avoiding hydralazine as a first-line agent due to its unpredictable response and adverse effects, except for eclampsia/preeclampsia 1, 3

The American College of Cardiology recommends avoiding excessive BP reduction (>70 mmHg systolic drop) to prevent stroke, MI, or renal failure through cerebral, coronary, or renal ischemia 1, 3, 4
The American College of Cardiology recommends avoiding the use of IV agents for hypertensive urgency, as oral therapy is appropriate 2