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Optimal duration of DAPT after second-generation drug-eluting stent in acute coronary syndrome

 Ji-Yong Jang  ;  Dong-Ho Shin  ;  Jung-Sun Kim  ;  Sung-Jin Hong  ;  Chul-Min Ahn  ;  Byeong-Keuk Kim  ;  Young-Guk Ko  ;  Donghoon Choi  ;  Myeong-Ki Hong  ;  Kyung Woo Park  ;  Hyeon-Cheol Gwon  ;  Hyo-Soo Kim  ;  Yangsoo Jang 
 PLOS ONE, Vol.13(11) : e0207386, 2018 
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BACKGROUND: We evaluated optimal duration of dual antiplatelet therapy (DAPT) after second-generation drug-eluting stent (DES) implantation in acute coronary syndrome (ACS). MATERIAL AND METHODS: From pooled analysis of three randomized clinical trials (EXCELLENT, IVUS-XPL, RESET), a total of 2,216 patient with ACS undergoing second-generation DES implantation were selected. Each study randomized patients to a short-duration DAPT arm (n = 1119; ≤6 months) or a standard-duration DAPT arm (n = 1097; ≥12 months). Two-thirds of patients were male, and their mean age was 63 years. Mean DAPT durations were 164 ±76 and 359 ±68 days, respectively. The primary endpoint was composite of cardiac death, myocardial infarction, stent thrombosis, stroke or major bleeding during the first 12 months after implantation, analyzed according to the intention-to-treat population. RESULTS: Demographic characteristics were balanced between groups. Mean DAPT duration was 164 and 359 days, respectively. Primary endpoint occurred in 22 patients with short-DAPT and 21 patients with standard-DAPT (2.0% versus 1.9%; hazard ratio [HR] 1.03; 95% confidence interval [CI] 0.56-1.86; p = 0.94). Landmark analysis after six-months, no significant difference in primary endpoint between short and standard duration DAPT (1.0% versus 0.8%; HR 1.22; 95% CI 0.51-2.95; p = 0.66). CONCLUSIONS: Short-duration DAPT (≤6 months) demonstrated a similar incidence of net adverse cardiovascular and clinical events at 12 months after second-generation DES in ACS compared with standard duration DAPT (≥12 months). CLINICAL TRIAL REGISTRATION: EXCELLENT (ClinicalTrials.gov, NCT00698607), RESET (ClinicalTrials.gov, NCT01145079), IVUS-XPL (ClinicalTrials.gov, NCT01308281).
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1. College of Medicine (의과대학) > Dept. of Internal Medicine (내과학교실) > 1. Journal Papers
Yonsei Authors
Ko, Young Guk(고영국) ORCID logo https://orcid.org/0000-0001-7748-5788
Kim, Byeong Keuk(김병극) ORCID logo https://orcid.org/0000-0003-2493-066X
Kim, Jung Sun(김중선) ORCID logo https://orcid.org/0000-0003-2263-3274
Shin, Dong Ho(신동호) ORCID logo https://orcid.org/0000-0002-7874-5542
Ahn, Chul-Min(안철민) ORCID logo https://orcid.org/0000-0002-7071-4370
Jang, Yang Soo(장양수) ORCID logo https://orcid.org/0000-0002-2169-3112
Choi, Dong Hoon(최동훈) ORCID logo https://orcid.org/0000-0002-2009-9760
Hong, Myeong Ki(홍명기) ORCID logo https://orcid.org/0000-0002-2090-2031
Hong, Sung Jin(홍성진) ORCID logo https://orcid.org/0000-0003-4893-039X
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