[Value of left ventricular ejection fraction in coronary artery bypass grafting patients].
OBJECTIVE
To evaluate the role of the left ventricular ejection fraction (LVEF) in coronary artery bypass grafting(CABG)patients.


METHODS
From 2004 to 2005,215 patients underwent CABG and there were 36 cases with LVEF<0.40(low LVEF group) whereas 179 cases with LVEF>0.40(normal LVEF group). Correlative data of the two groups were compared and analyzed statistically.


RESULTS
Compared with the normal EF group, the EuroSCORE of the low EF group was much higher (mean 6.4+/-1.7) and many more patients of the low EF group had concomitant moderate to severe mitral valve insufficiency and aneurysm that needed simultaneous surgical operation(55.6%).Two patients died in hospital(5.5%)in the low EF group whereas five patients in the normal EF group(2.8%, P<0.05).In the low EF group,34 survivors(94.5%)were free of angina. Low cardiac output was the main postoperative complication. The mean EF was significantly improved postoperatively (mean 0.47+/-0.11)(P<0.05).


CONCLUSIONS
EF<0.40 is indeed a risk factor for patients with coronary artery disease. Most of them have concomitant moderate to severe mitral valve insufficiency and aneurysm that need simultaneous surgical operations. The early surgical result of them is of satisfaction.
Song
Bo
B
Department of Cardiac Surgery, Peking University First Hospital, Beijing 100034, China.
Xiao
Feng
F
Li
Yan
Y
D000368:Aged; D001026:Coronary Artery Bypass; D003324:Coronary Artery Disease / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000601:surgery*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D013318:Stroke Volume; D016896:Treatment Outcome; D014463:Ultrasonography; D016277:Ventricular Function, Left