Imaging identification of stent fracture with drug eluting stent
- VernacularTitle:药物洗脱支架断裂的影像认识
- Author:
Jian LIU
;
Xiujuan ZHAO
;
Weimin WANG
- Publication Type:Journal Article
- Keywords:
Coronary disease;
Coronary angiography;
Ultrasonography,interventional;
Stent fracture
- From:
Chinese Journal of Interventional Cardiology
1993;0(02):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To identify stent fracture by revision of coronary artery angiography and intravascular ultrasound(IVUS) images.Methods Stent fracture has been implicated as a cause of drug-eluting stent failure.IVUS is more likely to identify stent failure(including stent fracture) when compared with angiography.We analysed retrospectively 2 021 cases of angiography and 183 cases of IVUS.Results Six fractures were found in 3 patients by angiography and five of these fractures were confirmed by IVUS in 2 patients.All stent fractures occurred in sirolimus-eluting stents in less than one year after implantation.Angiography analysis showed that 4 stent fractures were complete transverse linear fracture with stent displacement.IVUS analysis showed that 3 stent fractures were complete and 2 were partial fracture.One fracture site was found at the overlapping point of stents and one was found with coronary aneurysm.Conclusion Angiography and IVUS are helpful to identify stent fracture.IVUS can help to understand the possible mechanisms of stent fracture.
