Angioscopic Comparison of Resolute and Endeavor Zotarolimus-Eluting Stents

Circulation Journal : Official Journal of the Japanese Circulation Society
Yuji NishimotoYoshio Yasumura

Abstract

Drug-eluting stents (DES) have reduced late loss and target lesion revascularization through the inhibition of neointimal hyperplasia, but instead increased the risk of very late stent failure due to incomplete neointimal coverage and neoatherosclerosis. Although newer DES are more effective and safer than the first-generation DES, the difference in the condition of the stented lesions between Resolute zotarolimus-eluting stents (R-ZES) and Endeavor zotarolimus-eluting stents (E-ZES) on angioscopy has not been reported. Consecutive patients who received R-ZES (n=46) or E-ZES (n=46) for de novo lesion of native coronary artery and had 1-year follow-up angioscopy were examined. Yellow color (grade 0-3), neointimal coverage (grade 0-2), heterogeneity score (maximum-minimum neointimal coverage grade) and thrombus (presence or absence) at stented lesion were evaluated. The maximum yellow color grade (1.2±0.9 vs. 0.7±1.0, P=0.005) was higher in R-ZES than in E-ZES. The maximum (1.9±0.3 vs. 1.5±0.5, P<0.001) and minimum (1.1±0.7 vs. 0.4±0.5, P<0.001) coverage grade was higher in E-ZES than in R-ZES. The heterogeneity score was higher in R-ZES than in E-ZES (1.0±0.5 vs. 0.7±0.7, P=0.007). Prevalence of thrombus was not different betwee...Continue Reading

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Citations

Feb 5, 2016·Circulation Journal : Official Journal of the Japanese Circulation Society·Masahiko Shibuya, Masaharu Ishihara

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