wire crossing
The procedural technique of advancing a guidewire across an arterial occlusion or severe stenosis.
Full Definition
Wire crossing refers to the critical step in endovascular procedures where a guidewire is carefully advanced through or around an arterial obstruction. Success depends on proper wire selection (stiffness, tip configuration, coating), fluoroscopic guidance, and operator technique. Failed wire crossing may necessitate alternative approaches such as subintimal angioplasty, chronic total occlusion techniques, or surgical bypass. The ability to cross complex lesions often determines procedural success and patient outcomes.
Usage
Usage note: Distinguish between true luminal crossing and subintimal passage in documentation.
In Context
- "Successful wire crossing was achieved using a hydrophilic guidewire through the chronic total occlusion." — Procedural report
- "Multiple attempts at wire crossing were unsuccessful, prompting conversion to surgical bypass." — Operative note