Evaluation of a novel polymer-free sirolimus-eluting stent in a porcine model
- VernacularTitle:无载体西罗莫司洗脱支架在小型猪冠状动脉模型中预防冠状动脉支架再狭窄的实验研究
- Author:
Ming CHEN
;
Bo ZHENG
;
Hongyu PENG
- Publication Type:Journal Article
- Keywords:
Stent;
Sirelimus;
Drug carriers;
Coronary restenosis;
Swine,miniature
- From:
Chinese Journal of Interventional Cardiology
1996;0(04):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To evaluate the efficacy and safty of Polymer-free sirolimus eluting-stents(PFSES) in preventing restenosis in porcine coronary model.Methods Bare metal stents(BMS)(n=13),polymer-free bare metal stents(PFBMS)(n=13),polymeric sirolimus-eluting stents(PSES)(n=13) and PFSES(n=13) were implanted in left anterior descending coronary arteries(n=26) and left circumflex coronary(n=26) of 27 swines randomly.Coronary angiography was performed 28 days and 90 days after the procedure.Twelve animals were sacrificed for histomorphologic analysis after 90 days.Results The 28-day(n=24) and 90-day(n=12) outcome by quantitative coronary angiography(QCA) showed significant reduction in luminal loss(LL) in PFSES(LL:0.69?0.49 mm vs 1.27?0.36 mm,P=0.041;0.77?0.44 mm vs 1.33?0.29 mm,P
