balloon occlusion test
Temporary arterial occlusion procedure used to assess collateral circulation and neurological tolerance before permanent vessel sacrifice.
Full Definition
A balloon occlusion test (BOT) is a diagnostic procedure that involves temporary occlusion of a major artery using an inflatable balloon catheter to assess the adequacy of collateral circulation and neurological tolerance to permanent vessel sacrifice. This test is commonly performed before surgical or endovascular procedures that require arterial sacrifice, such as aneurysm treatment or tumor resection. The procedure involves clinical monitoring during balloon inflation, often supplemented by perfusion imaging or neurophysiological monitoring. BOT results help determine whether permanent vessel occlusion can be safely performed or whether bypass procedures are necessary to maintain adequate cerebral perfusion.
Usage
Usage note: Commonly abbreviated as BOT; specify duration and monitoring methods used.
In Context
- "The patient tolerated the 20-minute balloon occlusion test without neurological deficit." — Pre-procedural assessment
- "BOT with SPECT perfusion imaging demonstrated adequate collateral flow via the posterior communicating artery." — Neurointerventional report