Impact of Multiarterial Atherosclerotic Disease and Atherosclerosis-related Factors on Coronary Artery Bypass Grafting

Abstract

According to the annual changes in the mortality rate in Japan presented in the 2013 demographic statistics of the Ministry of Health, Labour and Welfare, the top cause of death in Japan is heart and cerebrovascular disease associated with atherosclerosis, and there is a high frequency of concomitant multiarterial atherosclerotic disease in patients diagnosed with coronary artery disease. The number of cardiovascular surgery performed on elderly patients has also been increasing, and multiarterial ath-erosclerotic disease, which increases with increasing age, cannot be ignored in the present situation. Against such a background, it is considered that coronary artery bypass grafting (CABG) on complex and 3-branch lesions in ischemic heart disease is associated with a high rate of atherosclerotic complications like carotid artery disease 1). In this study, we examined the presence of concomitant atherosclerotic disease in recent cases of CABG and the perioperative and late-phase results to investigate if multiarterial atherosclerotic disease and atherosclerosis-related factors have an impact on the results of CABG. II. Subjects and Method The subjects were 101 consecutive cases undergoing isolated CABG at our hospital between October 2011 and July 2015. Preoperatively, atherosclerosis-related factors were measured and the presence or absence of multiarterial atherosclerotic disease was confirmed by diagnostic imaging in all cases, and the impact of these factors on the results of CABG was retrospec