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KMID : 0880520180540010041
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Chonnam Medical Journal
2018 Volume.54 No. 1 p.41 ~ p.47
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Clinical Outcomes of Elderly Patients with Non ST-Segment Elevation Myocardial Infarction Undergoing Coronary Artery Bypass Surgery
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Kim Woo-Jin
Jeong Myung-Ho
Kang Dong-Goo
Lee Seung-Uk
Cho Sang-Ki
Ahn Young-Keun
Kim Young-Jo
Kim Chong-Jin
Cho Myeong-Chan
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Abstract
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The aim of this study is to investigate the clinical outcomes of the elderly patients with Non ST-segment elevation myocardial infarction (NSTEMI) undergoing coronary artery bypass surgery (CABG) compared to non-elderly patients. Patients with NSTEMI and undergoing CABG (n=451) who were registered in the Korea Acute Myocardial Infarction Registry between December 2003 and August 2012 were divided into two groups.; the non-elderly group (<75 years, n=327) and the elderly group (≥75 years, n=124). In-hospital mortality was higher in the elderly group (4.9% vs. 11.3%, p=0.015), but cardiac death, myocardial infarction, and major adverse cardiovascular events (MACE) including cardiac death, myocardial infarction, percutaneous revascularization, and redo-CABG after a one-year follow up were not different between the two groups. Predictors of in-hospital mortality in patients with NSTEMI undergoing CABG were left ventricular (LV) dysfunction (ejection fraction ≤40%) [hazard ratio (HR): 2.76, 95% confidence interval (CI): 1.16?6.57, p=0.022] and age (HR: 1.05, 95% CI: 1.01?1.10, p=0.047). So elderly NSTEMI patients should be considered for CABG if appropriate, but careful consideration for surgery is required, especially if the patients have severe LV systolic dysfunction.
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KEYWORD
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Myocardial Infaction, Coronary Artery Bypass, Aged
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