Association between stent fracture and restenosis after drug-eluting stent implantation

VernacularTitle:药物洗脱支架置人术后断裂导致支架内再狭窄的临床分析
Author: Feng TIAN ¹ ; Yun-Dai CHEN ; Zhi-Jun SUN ; Chang-Fu LIU ; Ting-Shu YANG ; Xian-Tao SONG
Author Information

1. 首都医科大学附属北京安贞医院
Keywords: Coronary disease; Stents; Coronary restenosis
From: Chinese Journal of Cardiology 2009;37(1):35-38
CountryChina
Language:Chinese
Abstract: objective This study Wag performed to evaluate the relationship between the stent fracture and restenosis after drug-eluting stent implantation.Methods The study enrolled 536 patients with and BMS group(n=139).The coronary angiography images were analyzed to detect restenosis and stent fracture.Results Restenosis rate was significantly lower in DES group(31/397,7.8%)compared that in BMS group(30/139,21.6%,P＜0.05).Stent fracture(n=5)was found only in DES group and not in BMS group(P＜0.05).Restenosis Were found in all stent fracture segments.The stent fracture developed at the angulated tortuosity lesions.Conclusion Stent fracture is one of the causes of restenosis after drug-eluting stents implantation and related to implantation of long DES stent at tlle location of angulated tortuosity lesions.