Hydralazine Dosing for ICH Blood Pressure Control

Introduction to Hydralazine Limitations

The American College of Cardiology and American Heart Association guidelines state that hydralazine's unpredictability of response and prolonged duration of action make it less desirable for acute ICH management 1, 2

The American College of Cardiology recommends nicardipine as the preferred agent for ICH blood pressure control, starting at 5 mg/h IV and increasing by 2.5 mg/h every 5 minutes to a maximum of 15 mg/h, due to its precise and titratable control 1, 2
The American College of Cardiology also recommends labetalol as an acceptable alternative, with a dose of 0.3-1.0 mg/kg slow IV injection every 10 minutes or 0.4-1.0 mg/kg/h IV infusion up to 3 mg/kg/h 1, 2

The American Heart Association recommends targeting a systolic blood pressure of 140-160 mmHg within 6 hours of symptom onset to prevent hematoma expansion 3, 4
The American Heart Association also recommends avoiding excessive drops in blood pressure (>70 mmHg within 1 hour) to reduce the risk of acute kidney injury and mortality 3, 4
Maintaining a cerebral perfusion pressure of ≥60 mmHg at all times is recommended 3, 4
A mean arterial pressure of <130 mmHg is recommended 3