Coronary Bypass in Patients Aged Seventy Years and Over: The Risk Factors Affecting Morbidity and Mortality
Abstract
Objectives: The increase in the number of coronary artery bypass graft (CABG) surgery in the elderly patients necessitates clinicans to make a rational decision considering the balance of risk and benefit. The aim of this study was to evaluate the risk factors affecting morbidity and mortality of CABG surgery in patients aged 70 years and over.
Materials and Methods: Patients aged 70 years and older who had isolated coronary artery disease (CAD) and underwent isolated CABG surgery between January 2006 and December 2015, were included in the study. Patients who need urgent surgery, had history of cardiovascular surgery and/ or had intervention to cardiac valves or aorta and opening of heart chambers during surgery due to other that cannulation and under age of 70 were excluded from the study. The demographic characteristics, preoperative, intraoperative and postoperative variables of the patients were examined retrospectively. The statistical analyses were performed in SPSS 15.0 program and p<0.05 was considered as statistically significant.
Results: Total 349 patients were included in study, survival analysis was conducted in 312 (89.4%) patients. In-hospital mortality was 8.9%. Chronic obstructive pulmonary disease, history of cerebrovascular disease, history of myocardial infarction, class III-IV functional capacity of New York Heart
Association and older age were found to be related with increased ventilation time and re-entubation. Age, diabetes mellitus, chronic obstructive pulmonary disease, carotis artery stenosis, class III-IV functional capacity of New York Heart Association, high preoperative glomerular filtration rate and use of left internal mammarian artery graft were found to be statistically significant in terms of increased postoperative mortality.
Conclusion: This study demonstrates that CABG surgery in 70 age and older patients for treatment of CAD have a reasonable morbidity and
mortality.
Keywords
Coronary Artery Bypass Grafting, 70 Years And Over, Morbidity, Mortality
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