Medications for Hemorrhagic Stroke
Blood Pressure Management
For hemorrhagic stroke, intravenous nicardipine is the preferred agent to lower systolic blood pressure to a target of 140-179 mm Hg, with initiation as soon as possible after presentation. 1
Acute Blood Pressure Control Protocol
- Start nicardipine at 5 mg/hour IV and titrate by 2.5 mg/hour every 5-15 minutes to a maximum of 15 mg/hour to achieve target systolic BP of 140-179 mm Hg 2, 3
- Nicardipine achieves goal BP in nearly 100% of patients, with 89% reaching target within 60 minutes of initiation 3
- Nicardipine provides superior BP control compared to labetalol, with less BP variability and better maintenance within goal range 3
- Avoid intensive BP lowering to <140 mm Hg systolic, as the ATACH-2 trial (2016) demonstrated no benefit and increased renal adverse events (9.0% vs 4.0%) with intensive targets of 110-139 mm Hg compared to standard targets of 140-179 mm Hg 1
Alternative Blood Pressure Agents
- Labetalol 10-20 mg IV over 1-2 minutes can be used if nicardipine is unavailable, though it achieves goal BP in only 61% of patients and requires more rescue antihypertensives 2, 3
- Labetalol is associated with more rebound hypertension (75.9% vs 40%) and bradycardia (44.8% vs 23.3%) compared to nicardipine 4
Blood Pressure Monitoring
- Monitor BP every 15 minutes for the first 2 hours, then every 30 minutes for 6 hours, then hourly for 16 hours 2
- Frequent monitoring is critical as BP is a dynamic parameter requiring identification of trends and extreme fluctuations 2
Venous Thromboembolism Prophylaxis
Initiate prophylactic-dose low-molecular-weight heparin (LMWH) or unfractionated heparin (UFH) subcutaneously between days 2-4 after hemorrhagic stroke. 5
VTE Prevention Protocol
- LMWH is preferred over UFH for VTE prophylaxis (Grade 2B recommendation) 5
- Start VTE prophylaxis ideally within 24 hours of admission after ruling out intracranial hemorrhage, but typically between days 2-4 for hemorrhagic stroke 5, 6
- Use intermittent pneumatic compression devices if anticoagulation is contraindicated 5
- Avoid elastic compression stockings as they are not recommended for VTE prophylaxis (Grade 2B recommendation) 5
Medications to AVOID in Hemorrhagic Stroke
Neuroprotective Agents
- Do not use edaravone - insufficient data to support its use in hemorrhagic stroke despite free radical scavenging properties 5
- Do not use citicoline - the ICTUS trial showed no benefit in ischemic stroke (OR 1.03,95% CI 0.86-1.25), and there is no validation for hemorrhagic stroke 5
Antiplatelet and Anticoagulant Therapy
- Antiplatelet therapy is NOT routinely recommended for hemorrhagic stroke and should only be carefully considered if there is a strong indication (e.g., recent coronary stent) 2
- Do not initiate aspirin, clopidogrel, or other antiplatelet agents acutely after hemorrhagic stroke 2
- Avoid oral anticoagulants unless there is an overwhelming indication that outweighs bleeding risk 2
Long-Term Blood Pressure Management (After Acute Phase)
- Target BP <140/90 mm Hg for long-term management after hemorrhagic stroke (<130/80 mm Hg in younger patients, <140/80 mm Hg in elderly) 2
- First-line agents include RAS blockers (ACE inhibitors or ARBs), calcium channel blockers, and diuretics 2
- Restart or initiate long-term antihypertensive therapy after the initial 24 hours from stroke onset in most patients 2
Critical Pitfalls to Avoid
- Do not lower BP too aggressively - intensive lowering to <140 mm Hg systolic increases renal complications without improving outcomes 1
- Do not use lipid-lowering therapy or antiplatelet agents as routine secondary prevention after hemorrhagic stroke, unlike ischemic stroke where these are standard 2, 7
- Do not extrapolate ischemic stroke management to hemorrhagic stroke - the pathophysiology and treatment priorities differ fundamentally 5
- Do not delay VTE prophylaxis indefinitely - balance bleeding risk against thrombotic risk, typically starting between days 2-4 5