Long-term Outcomes in Patients With Severely Reduced Left Ve
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Data are lacking on the outcomes of patients with severely reduced left ventricular ejection fraction (LVEF) who undergo revascularization by percutaneous coronary intervention (PCI) or coronary artery bypass grafting (CABG).

The objective of this study was to compare the long-term outcomes in patients undergoing revascularization by PCI or CABG. This retrospective cohort study performed in Ontario, Canada, from October 1, 2008, and December 31, 2016, included data from Ontario residents between 40 and 84 years of age with LVEFs less than 35% and left anterior descending (LAD), left main, or multivessel coronary artery disease (with or without LAD involvement) who underwent PCI or CABG. Exclusion criteria were concomitant procedures, previous CABG, metastatic cancer, dialysis, CABG and PCI on the same day, and emergency revascularization within 24 hours of a myocardial infarction (MI). Data analysis was performed from June 2, 2018, to December 28, 2018.

The primary outcome was all-cause mortality. Secondary outcomes were death from cardiovascular disease, major adverse cardiovascular events (MACE; defined as stroke, subsequent revascularization, and hospitalization for MI or heart failure), and each of the individual MACE.

Results: A total of 12 113 patients (mean age, 64.8 years for the PCI group and 65.6 years for the CABG group; 5084 male for the PCI group and 4229 male for the PCI group) were propensity score matched on 30 baseline characteristics: 2397 patients undergoing PCI and 2397 patients undergoing CABG. The median follow-up was 5.2 years. Patients who received PCI had significantly higher rates of mortality, death from cardiovascular disease, MACE, subsequent revascularization, and hospitalization for MI and heart failure compared with matched patients who underwent CABG.

Conclusively, higher rates of mortality and MACE were seen in patients who received PCI compared with those who underwent CABG. The findings may provide insight to physicians who are involved in decision-making for these patients.

Source: https://jamanetwork.com/journals/jamacardiology/article-abstract/2763557
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