flush occlusion
Complete arterial blockage at a vessel origin or major branch point, presenting significant technical challenges for intervention.
Full Definition
Flush occlusion describes complete obstruction of an artery at its origin or at a major bifurcation point, where the blockage extends to the vessel wall without leaving a residual stump or entry point. This pattern of occlusion presents particular challenges for both open surgical and endovascular interventions because there is no obvious point for catheter or wire entry. Flush occlusions commonly occur at the superficial femoral artery origin, common iliac artery, or other major branch points. The term is critical in procedural planning documentation as it influences technique selection and success rates for recanalization attempts.
Usage
Usage note: Distinguish from subtotal occlusion or critical stenosis in procedural documentation.
In Context
- "The flush occlusion of the superficial femoral artery origin precluded endovascular recanalization." — Procedure report
- "Angiography revealed flush occlusion at the common iliac bifurcation." — Diagnostic report