vasospasm
Sudden constriction of a blood vessel that can occur during or after intervention, potentially compromising blood flow.
Full Definition
Vasospasm is the acute constriction of arterial smooth muscle that can occur spontaneously or be triggered by mechanical manipulation during interventional procedures. In the context of vascular intervention, catheter-induced vasospasm is a recognized complication that can significantly reduce vessel diameter and compromise distal perfusion. It commonly affects the radial artery during transradial access or coronary arteries during catheter manipulation. Treatment typically involves intra-arterial administration of vasodilators such as nitroglycerin, verapamil, or nicardipine. Recognition and prompt treatment are essential to prevent procedural complications and ensure optimal outcomes.
Usage
Usage note: Distinguish from fixed stenosis in procedural documentation.
In Context
- "Severe radial artery vasospasm was treated with intra-arterial verapamil administration." — Procedural complication note
- "The angiogram revealed vasospasm of the left anterior descending artery following guide catheter engagement." — Cardiac catheterization report