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  • Title: Association of periprocedural myocardial infarction with long-term survival in patients treated with coronary revascularization therapy of chronic total occlusion.
    Author: Jang WJ, Yang JH, Choi SH, Song YB, Hahn JY, Kim WS, Lee YT, Kim BS, Gwon HC.
    Journal: Catheter Cardiovasc Interv; 2016 May; 87(6):1042-9. PubMed ID: 26525460.
    Abstract:
    OBJECTIVE: To evaluate the impact of periprocedural myocardial infarction (PMI) on long-term survival after coronary revascularization in patients with chronic total occlusion (CTO). BACKGROUND: Little is known about the clinical impact of PMI on long-term cardiac mortality after CTO revascularization in patients with stable angina. METHODS: We analyzed data from 927 patients with CTO and stable angina who were treated with coronary artery bypass grafting (CABG, n = 367) or percutaneous coronary intervention (PCI, n = 560). PMI was defined as a peak CK-MB ≥ 3 times the upper limit of normal (ULN) after PCI or a CK-MB ≥ 5 times the ULN after CABG. The primary outcome was cardiac death in patients with PMI (PMI group, n = 118 [12.7%]) or without PMI (no-PMI group, n = 809 [87.3%]) after revascularization. RESULTS: During a median follow-up of 42 months, PMI occurred in 118 patients (12.7% of the overall study population). Fifty-nine patients treated with PCI (10.5% of PCI subgroup) and 59 patients treated with CABG (16.1% of CABG subgroup) suffered from PMI. In multivariate analysis, the PMI group and the no-PMI group had a similar incidence of cardiac death (hazard ratio [HR] 0.57; 95% confidence interval [CI] 0.20 to 1.62; P = 0.29). CONCLUSIONS: PMI may not be associated with increased cardiac mortality after coronary revascularization in patients with stable CTO. © 2015 Wiley Periodicals, Inc.
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