Incidence of thrombosis after implantation of drug-eluting stents in patients with coronary artery disease |
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作者单位: | Department of Cardiology,Cardiovascular Institute & Fuwai Hospital,Chinese Academy of Medical Sciences and Peking Union Medical College,Beijing 100037,China |
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基金项目: | 首都医学发展科学研究基金 |
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摘 要: | Background Randomized clinical trials have demonstrated equivalent safety to bare-metal stents after drug-eluting stents (DES) implantation. However, the DES thrombosis in randomized trials could not be comparable to those observed in clinical practice, frequently including off-label indications. This study sought to assess the incidence of DES thrombosis after implantation of DES in patients with real world coronary artery disease (CAD) in China. Methods From December 2001 to April 2007, 8190 consecutive patients received the treatment with DES, 5412 patients completed one year follow-up: 2210 with sirolimus-eluting stent Cypher, 1238 with paclitaxel-eluting stent Taxus and 1964 with Chinese sirolimus-eluting stent Firebird, After two years of follow-up, there were 2176 patients (1245 Cypher, 558 Taxus and 373 Firebird). All patients were treated with aspirin and clopidogrel over at least 9 months. Results Among 8190 patients, 17 patients had acute stent thrombosis (0.24%): 7 in the Cypher group, 4 Taxus and 6 Firebird; 23 patients had subacute stent thrombosis: 8 Cypher, 6 Taxus and 9 Firebird. The incidence of acute and subacute thrombosis was 0.49%: 0.50% Cypher, 0.63% Taxus and 0.41% Firebird. The incidence of late thrombosis at one year followup was 0.63%: 0.63% Cypher, 0.88% Taxus and 0.46% Firebird; at two year follow-up the incidence was 0.74%: 0.72% Cypher, 0.90% Taxus and 0.54% Firebird. There was no significant difference among three groups at 1 year and 2 years follow-up. Conclusion The first generation DES in the treatment of complex lesions are safe and effective if patients are aggressively treated with dual antiplatelet agents.
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关 键 词: | 冠状动脉疾病 血栓症 安全性 治疗方法 |
Incidence of thrombosis after implantation of drug-eluting stents in patients with coronary artery disease |
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Authors: | CHEN Ji-lin YANG Yue-jin GAO Li-jian HUANG Jing-han QIN Xue-wen QIAO Shu-bin XU Bo YAO Min LIU Hai-bo WU Yong-jian YUAN Jin-qing CHEN Jue YOU Shi-jie DAI Jun LI Jian-jun GAO Run-lin |
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Institution: | Department of Cardiology, Cardiovascular Institute & Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, China |
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Abstract: | Background Randomized clinical trials have demonstrated equivalent safety to bare-metal stents after drug-eluting stents (DES) implantation.However,the DES thrombosis in randomized trials could not be comparable to those observed in clinical practice,frequently including off-label indications.This study sought to assess the incidence of DES thrombosis after implantation of DES in patients with real world coronary artery disease (CAD) in China.Methods From December 2001 to April 2007,8190 consecutive patients received the treatment with DES,5412 patients completed one year follow-up:2210 with sirolimus-eluting stent Cypher,1238 with paclitaxel-eluting stent Taxus and 1964 with Chinese sirolimus-eluting stent Firebird.After two years of follow-up,there were 2176 patients (1245 Cypher,558 Taxus and 373 Firebird).All patients were treated with aspirin and clopidogrel over at least 9 months.Results Among 8190 patients,17 patients had acute stent thrombosis (0.24%):7 in the Cypher group,4 Taxus and 6 Firebird;23 patients had subacute stent thrombosis:8 Cypher,6 Taxus and 9 Firebird.The incidence of acute and subacute thrombosis was 0.49%:0.50% Cypher,0.63% Taxus and 0.41% Firebird.The incidence of late thrombosis at one year followup was 0.63%:0.63% Cypher,0.88% Taxus and 0.46% Firebird;at two year follow-up the incidence was 0.74%:0.72% Cypher,0.90% Taxus and 0.54% Firebird.There was no significant difference among three groups at 1 year and 2 years follow-up.Conclusion The first generation DES in the treatment of complex lesions are safe and effective if patients are aggressively treated with dual antiplatelet agents. |
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Keywords: | drug-eluting stents coronary disease thrombosis safety |
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