vasospasm
Narrowing of cerebral arteries that commonly occurs after subarachnoid hemorrhage, potentially causing stroke.
Full Definition
Vasospasm refers to the constriction or narrowing of cerebral blood vessels, most commonly occurring as a delayed complication of subarachnoid hemorrhage. It typically develops 4-14 days after the initial bleeding event and can lead to delayed cerebral ischemia or stroke. Vasospasm is diagnosed through transcranial Doppler studies, CT angiography, or conventional angiography. Treatment may include calcium channel blockers, induced hypertension, and endovascular interventions. In medical documentation, the timing, severity, and treatment response of vasospasm must be carefully recorded.
Usage
Usage note: Often preceded by 'cerebral' for clarity; distinguish from other vascular complications.
In Context
- "Transcranial Doppler revealed severe vasospasm in the anterior cerebral arteries." — Diagnostic report
- "Triple-H therapy was initiated to prevent vasospasm-induced cerebral ischemia." — Treatment plan