Ascertainment of Silent Myocardial Infarction in Patients Undergoing Percutaneous Coronary Intervention (From the GLOBAL LEADERS Trial)
ARTICLE IN PRESS Ascertainment of Silent Myocardial Infarction in Patients Undergoing Percutaneous Coronary Intervention (from the GLOBAL LEADERS Trial) Chun Chin Chang, MDa,b, Ernest Spitzer, MDa,c, Ply Chichareon, MDd, Kuniaki Takahashi, MDd, Rodrigo Modolo, MDd, Norihiro Kogame, MDd, Mariusz Tomaniak, MDa,e, Hidenori Komiyama, MDd, Sing-Chien Yap, MD, PhDa, Stephen P. Hoole, MDf, Tommaso Gori, MDg, Azfar Zaman, MDh, Bernhard Frey, MDi, Rui Cruz Ferreira, MDj, Olivier F. Bertrand, MD, PhDk, Tian Hai Koh, MDl, Amanda Sousa, MDm, Aris Moschovitis, MDn, Robert-Jan van Geuns, MD, PhDa,o, Philippe Gabriel Steg, MDp, Christian Hamm, MDq,r, Peter Juni,€ DMs,t, Pascal Vranckx, MD, PhDu, Marco Valgimigli, MD, PhDn, Stephan Windecker, MDn, Patrick W. Serruys, MD, PhDv,*, Osama Soliman, MD, PhDa,c, and Yoshinobu Onuma, MD, PhDa,c Q-wave myocardial infarction (QWMI) comprises 2 entities. First, a clinically evident MI, which can occur spontaneously or be related to a coronary procedure. Second, silent MI which is incidentally detected on serial electrocardiographic (ECG) assessment. The preva- lence of silent MI after percutaneous coronary intervention (PCI) in the drug-eluting stent era has not been fully investigated. The GLOBAL LEADERS is an all-comers multicenter trial which randomized 15,991 patients who underwent PCI to 2 antiplatelet treatment strate- gies. The primary end point was a composite of all-cause death or nonfatal new QWMI at 2-years follow-up. ECGs were collected at discharge, 3-month and 2-year visits, and analyzed by an independent ECG core laboratory following the Minnesota code. All new QWMI were further reviewed by a blinded independent cardiologist to identify a potential clinical corre- late by reviewing clinical information.
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