Background: Preoperative intra-aortic balloon pump (IABP) usually used
to improve myocardial perfusion through increasing coronary blood flow
during diastole with optimal timing. Its use has debatable outcomes in cases
with impaired function and in need for coronary artery bypass graft surgery
(CABG).
Objectives: This study aimed to evaluate the early use of IABP preoperatively
and the predictors in cases with severe to moderate impaired left ventricular
function undergoing CABG upon the outcomes.
Methods: This study enrolled 129 patients underwent CABG with moderate
to severe depressed left ventricular (LV) function. Depending on the
preoperative left ventricular function, the patients were classified into two
groups. Group I: n=49 cases who had their ejection fraction (EF) ˂ 35%,
and it was subdivided into subgroups A: (n=26 who had preoperative IABP
inserted for them) and B: (n=23 who didn’t receive IABP preoperative).
Group II: n= 80 cases who had EF ≥ 35%, and it was subdivided into
subgroups C: (n=11 who received preoperative IABP) and D: (n=69 who
didn’t receive preoperative IABP).