compliance mismatch
Difference in vessel wall flexibility between treated and untreated segments, potentially affecting long-term outcomes.
Full Definition
Compliance mismatch refers to the difference in mechanical properties between vessel segments, particularly the varying degrees of flexibility or distensibility along the vessel wall. This phenomenon is commonly observed at the edges of stented segments, where the rigid stent creates a transition zone between the stiff metallic scaffold and the natural vessel compliance. Compliance mismatch can contribute to edge stenosis, late stent thrombosis, and accelerated atherosclerosis at stent borders. Understanding this concept is crucial for optimal stent selection, sizing, and deployment strategy to minimize long-term complications.
Usage
Usage note: Hyphenate when used as compound modifier; relates to biomechanical properties, not size discrepancies.
In Context
- "Compliance mismatch at the stent edges may contribute to late restenosis." — Research publication
- "The use of tapered stents may help reduce compliance mismatch in certain anatomies." — Technical review