lesion preparation
Pre-treatment techniques used to modify coronary lesions before stent deployment, including balloon dilatation, atherectomy, or scoring.
Full Definition
Lesion preparation encompasses various techniques employed before definitive stent implantation to optimize vessel conditions and ensure adequate stent expansion and apposition. Methods include pre-dilatation with compliant or semi-compliant balloons, rotational or orbital atherectomy for calcified lesions, cutting or scoring balloons for fibrotic tissue, and specialized devices for thrombus-containing lesions. Proper preparation is particularly crucial in complex lesions with heavy calcification, chronic total occlusions, or high thrombus burden. The choice of preparation strategy depends on lesion characteristics identified through angiography and intravascular imaging. Adequate preparation reduces the risk of stent under-expansion, malapposition, and subsequent adverse events while optimizing long-term outcomes.
Usage
Usage note: Specify preparation methods used; essential component of comprehensive procedural documentation.
In Context
- "Extensive lesion preparation with rotational atherectomy was required due to severe calcification." — Complex procedure report
- "Minimal lesion preparation was performed given the favorable vessel characteristics." — Routine intervention note