bifurcation lesion
A coronary artery stenosis occurring at or near the division of a main vessel into two branches.
Full Definition
A bifurcation lesion refers to atherosclerotic narrowing that occurs at the point where a coronary artery divides into two significant branches, typically involving the main vessel and one or both side branches. These lesions present unique technical challenges for percutaneous intervention due to the complex anatomy and risk of side branch compromise. Treatment strategies include provisional side branch stenting, two-stent techniques, or dedicated bifurcation devices. The classification and management of bifurcation lesions require specialized expertise in interventional cardiology.
Usage
Usage note: Often classified using the Medina classification system in technical reports.
In Context
- "The LAD-diagonal bifurcation lesion was treated using a provisional stenting approach." — Catheterization laboratory report
- "Complex bifurcation lesions may require dedicated two-stent techniques for optimal outcomes." — Interventional cardiology guidelines