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Clopidogrel versus Aspirin after Dual Antiplatelet Therapy in Acute Myocardial Infarction ....
  • Date2021-02-23 17:54
  • Update2021-02-23 17:54
  • CountersignatureDivision of Research Planning
  • Tel043-719-8033

Korean Circulation Journal, 2020.50(2), 120-129, DOI: https://doi.org/10.4070/kcj.2019.0166


Clopidogrel versus Aspirin after Dual Antiplatelet Therapy in Acute Myocardial Infarction Patients Undergoing Drug-Eluting Stenting

Doo Sun Sim, Myung Ho Jeong; Hyo Soo Kim; Hyeon Cheol Gwon; Ki Bae Seung; Seung Woon Rha; Shung Chull Chae; Chong Jin Kim; Kwang Soo Cha; Jong Seon Park; Jung Han Yoon; Jei Keon Chae; Seung Jae Joo; Dong Ju Choi; Seung Ho Hur; In Whan Seong; Myeong Chan Cho; Doo Il Kim; Seok Kyu Oh; Tae Hoon Ahn; Jin Yong Hwang


Abstract

    Background and objectives: There is a paucity of data regarding the benefit of clopidogrel monotherapy after dual antiplatelet therapy (DAPT) in patients treated with drug-eluting stents (DES). This study compared outcome between clopidogrel versus aspirin as monotherapy after DES for acute myocardial infarction (MI).
    Methods: From Korea Acute Myocardial Infarction Registry-National Institute of Health database, 1,819 patients treated with DES who were switched to monotherapy with clopidogrel (n=534) or aspirin (n=1,285) after uneventful 12-month DAPT were analyzed. The primary endpoint was net adverse clinical events (NACE), defined as a composite of death from any cause, MI, repeat percutaneous coronary intervention (PCI), stent thrombosis, ischemic stroke, or major bleeding during the period from 12 to 24 months.
    Results: After adjustment using inverse probability of treatment weighting, patients who received clopidogrel, compared with those treated with aspirin, had a similar incidence of NACE (0.7% and 0.7%; hazard ratio, 1.06; 95% confidence interval, 0.31-3.60; p=0.923). The 2 groups had similar rates of death from any cause (0.1% in each group, p=0.789), MI (0.3% and 0.1%, respectively; p=0.226), repeat PCI (0.1% and 0.3%, respectively; p=0.548), stent thrombosis (0.1% and 0%, respectively; p=0.121), major bleeding (0.2% in each group, p=0.974), and major adverse cardiovascular and cerebrovascular events (0.5% in each group, p=0.924).
    Conclusions: Monotherapy with clopidogrel, compared to aspirin, after DAPT showed similar clinical outcomes in patients with acute MI treated with DES.



  • 본 연구는 질병관리본부 연구개발과제연구비를 지원받아 수행되었습니다.
  • This research was supported by a fund by Research of Korea Centers for Disease Control and Prevention.


This public work may be used under the terms of the public interest source This public work may be used under the terms of the public interest source
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