Comparison of Long-Term Outcome After Percutaneous Coronary Intervention for Stent Thrombosis Between Early, Late, and Very Late Stent Thrombosis

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Background: Differences in long-term outcome between early stent thrombosis (EST), late stent thrombosis (LST), and very late stent thrombosis (VLST) are unknown. Methods and Results: A total of 152 patients who had undergone percutaneous coronary intervention for stent thrombosis between January 2001 and October 2011 were enrolled, and the clinical outcome compared between EST (55 patients), LST (34 patients), and VLST (63 patients) after drug-eluting stent (DES) and bare-metal stent (BMS) implantation. Major adverse cardiac events (MACE), including cardiac death, recurrent stent thrombosis, non-fatal myocardial infarction, and target lesion revascularization (TLR), were evaluated at 5 years. The in-hospital mortality was similar between EST, LST, and VLST (P=0.37). The incidence of MACE was significantly lower in VLST (21.9%) than in EST (66.9%, P<0.001) and LST (66.6%, P<0.001), mainly because of a lower TLR rate after VLST (11.1%) than after EST (50.8%, P<0.001) and LST (52.2%, P<0.001). The 5-year mortality rate was also significantly lower in VLST (14.7%) than in EST (29.3%, P=0.049) and LST (41.6%, P=0.025). The incidence of MACE was similar between DES and BMS (46.2% vs. 50.0%, P=0.82), and this finding was observed in EST (P=0.83), LST (P=0.77), and VLST (P=0.57). Conclusions: Compared with EST and LST, long-term outcome was markedly better in VLST, mainly because of a lower TLR rate, whether after DES or BMS implantation.
一般社団法人日本循環器学会の論文

Comparison of Long-Term Outcome After Percutaneous Coronary Intervention for Stent Thrombosis Between Early, Late, and Very Late Stent Thrombosis

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