• Hiroyuki Nishi, Satoru Miyamoto, Shuichiro Takanashi, Hirokazu Minamimura, Takumi Ishikawa, and Yoshihiro Shimizu.
• Department of Cardiovascular Surgery, Osaka City General Hospital, Miyakojimahondori, Osaka, Japan.
• Ann Thorac Cardiovasc Surg. 2003 Apr 1; 9 (2): 111-6.

ObjectiveThis study evaluates whether patients with coronary artery disease and severely depressed left ventricular ejection fraction (LVEF) benefit from complete revascularization by multivessel coronary artery bypass.MethodsFrom April 1994 to May 2002, 42 patients who underwent coronary artery bypass grafting (CABG) at our institution had impaired left ventricular (LV) function [an ejection fraction (EF) of 30% or less]. The average preoperative LVEF was 23.8%. The mean number of grafts was 4.6. Complete revascularization by multivessel bypass grafting was the goal for all patients.ResultsThirty days mortality was 0 and hospital mortality was 2.4%. The mean graft patency rate for 35 (83%) patients at one month was 98.8%. The mean postoperative LVEF improved significantly, from 23.8% to 35.2% (p<0.05), and the New York Heart Association (NYHA) classification was improved in most patients. The Kaplan-Meier estimate of survival at 5 years was 83.1%, and that of the cardiac event-free rate at 5 years was 77.5%.ConclusionFor patients with poor LV function, complete surgical revascularization by multivessel bypass grafting can be performed safely, with satisfactory hospital mortality and long-term results.

20 keywords...

hide…