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J Cardiol. 2019 Mar;73(3):191-197. doi: 10.1016/j.jjcc.2018.08.005.

One-year clinical outcomes of ticagrelor compared with clopidogrel after percutaneous coronary intervention in patients with acute myocardial infarction: From Korean Health Insurance Review and Assessment Data.

Author information

1
Division of Cardiology, Severance Cardiovascular Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea.
2
Division of Cardiology, Severance Cardiovascular Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea; Cardiovascular Research Institute, Yonsei University College of Medicine, Seoul, Republic of Korea.
3
Division of Cardiology, Severance Cardiovascular Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea; Cardiovascular Research Institute, Yonsei University College of Medicine, Seoul, Republic of Korea; Severance Biomedical Science Institute, Yonsei University College of Medicine, Seoul, Republic of Korea.
4
Department of Research, Health Insurance Review & Assessment Service, Wonju, Republic of Korea.
5
Division of Cardiology, Severance Cardiovascular Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea; Cardiovascular Research Institute, Yonsei University College of Medicine, Seoul, Republic of Korea; Severance Biomedical Science Institute, Yonsei University College of Medicine, Seoul, Republic of Korea. Electronic address: JANGYS1212@yuhs.ac.

Abstract

BACKGROUND:

Ticagrelor has been widely accepted in clinical practice for treatment of acute myocardial infarction (AMI), however its clinical safety and efficacy have not been revealed sufficiently in Asian populations.

METHODS AND RESULTS:

Among a total 20,270 patients (age <75 years) with AMI undergoing percutaneous coronary intervention who received dual antiplatelet therapy for at least 30 days, clinical outcomes at 1 year were assessed from the database of Health Insurance Review and Assessment Service in Korea between 2013 and 2014. Ticagrelor showed a significant effect on reduction of all-cause death [stabilized inverse probability of treatment weighted (sIPTW)-adjusted odds ratio (aOR) 0.57, 95% confidence interval (CI) 0.42-0.77, p<0.001]. Stroke was also reduced by using ticagrelor (sIPTW-aOR 0.58, 95% CI 0.41-0.82, p=0.002). Bleeding risk was not increased by ticagrelor use. There were nearly 30% of patients who switched from ticagrelor to different P2Y12 inhibitors. Switching P2Y12 inhibitors was associated with clinical adverse events including MI, stroke, and bleeding.

CONCLUSIONS:

Among patients aged younger than 75 years, ticagrelor was associated with lower incidence of all-cause mortality. Stroke risk was also reduced in patients with a prescription for ticagrelor without an increase in bleeding risk.

KEYWORDS:

Coronary artery disease; Myocardial infarction; Platelet inhibitors; Treatment

PMID:
30770037
DOI:
10.1016/j.jjcc.2018.08.005

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