[Efficacy of Multi-vessel Coronary Artery Bypass Grafting for Patient with Low Left Ventricular Ejection Fraction].
The efficacy of multi-vessel coronary artery bypass grafting (CABG) for low left ventricular ejection fraction (LVEF) is controversial. We assessed 31 consecutive low LVEF patients who underwent CABG in our hospital from April 2007 to September 2014. Seventeen patients underwent CABG with distal anastomosis 5 or less (group A), and 14 patients underwent CABG with distal anastomosis 6 or more (group B). Twenty-eight (90%)patients underwent off-pump CABG, and 3 (10%) patients underwent on-pump beating CABG. There was no operative mortality. Postoperative LVEF was improved in group B more than that in group A [9.3±7.0% vs 4.6±9.0% (p=0.023)]. The percentage of patients with improvement of LVEF more than 5% was higher in group B [group A vs group B=29.4% vs 78.6%(p=0.006)]. Early patency rate was 100% (137/137 anastomoses), and cumulative patency rate was not different between 2 groups [group A (1 year:100%, 3 year:100%, 5 year:100%), group B (1 year:100%, 3 year:94.8%, 5 year:94.8%).p=0.177]. The multi-vessel CABG (6 or more distal anastomoses) could be performed safely and would improve LVEF more than less number vessel CABG( 5 or less distal anastomoses) in low LVEF patients.
Department of Cardiovascular Surgery, Japan Community Health Care Organization, Hokkaido Hospital, Sapporo, Japan.
Toshihito
T
Yoshida
Tatsuya
T
Seki
D000368:Aged; D001026:Coronary Artery Bypass / Q000379:methods* / Q000401:mortality / Q000451:nursing; D005260:Female; D006801:Humans; D008297:Male; D014654:Vascular Patency; D016277:Ventricular Function, Left / Q000502:physiology