runoff
The distal vascular territory beyond a stenotic or occluded vessel, referring to the quality of blood flow to peripheral circulation.
Full Definition
In angiological terminology, runoff refers to the condition and quality of the distal vascular bed that receives blood flow beyond a point of arterial narrowing or blockage. Good runoff indicates healthy, patent distal vessels that can effectively receive revascularized blood flow, while poor runoff suggests compromised distal circulation with multiple stenoses or occlusions. The assessment of runoff is crucial for determining the success potential of revascularization procedures and influences treatment planning decisions. Runoff is typically evaluated using angiographic imaging and classified using standardized scoring systems.
Usage
Usage note: Context-dependent term; ensure clear distinction from general usage of 'runoff' in medical editing.
In Context
- "The patient demonstrated poor runoff with only one-vessel tibial circulation." — Vascular surgery consultation
- "Adequate runoff to the foot was confirmed before proceeding with femoral endarterectomy." — Operative report