We used data from the ASian Paclitaxel-Eluting Stent Clinical Trial (a 3-center, randomized, placebo-controlled trial of nonpolymeric paclitaxel-coated stents with a single-center intravascular ultrasound substudy) to compare angiographic indexes of drug-eluting stent efficacy with the magnitude of intimal hyperplasia (IH) assessed by intravascular ultrasound. Overall, percent IH (IH volume divided by stent volume) was larger in restenotic lesions than in nonrestenotic lesions (46 ± 19% vs 15 ± 13%, p <0.0001); angiographic late loss and follow-up diameter stenoses correlated strongly with percent IH.
Bibliographical noteFunding Information:
This study was supported by the Cardiovascular Research Foundation, Seoul, Korea, and Cook Incorporated, Bloomington, Indiana.
All Science Journal Classification (ASJC) codes
- Cardiology and Cardiovascular Medicine