Estudo comparativo entre cirurgia de revascularização miocárdica com e sem circulação extracorpórea em mulheresComparative study between on-pump and off-pump coronary artery bypass graft in women of Abstract Background: It has been well documented that women have higher morbidity and mortality rates than men following coronary artery bypass graft (CABG) surgery. In view of this evidence, it is necessary to know if there is benefit to off-pump CABG surgery in women in comparison to on-pump CABG.Objectives: Compare outcomes between off-pump CABG and on-pump CABG in women.Methods: Retrospective study. Our investigation analyzes comparatively clinical profile, thirteen procedure complications and mortality of a population of 941 consecutive women undergoing CABG surgery (549 off-pump and 392 on-pump) at two hospitals for the period January 2000 to December 2005.Results: Mortality rate for women undergoing off-pump CABG surgery is lower than for women undergoing on-pump surgery, however, not statistically significant (3.1% vs 5.3%; P=0.134). The complication rates analyzed (hemorrhagic shock, neurologic, respiratory, acute renal failure, adult respiratory distress syndrome, septicemia, pneumonia, atrial fibrillation) were lower (significant statistically difference) for women off-pump than women on-pump, with the exception of low cardiac output and wound infection.Conclusions: Evidence suggests that off-pump CABG surgery may be better for women than on-pump CABG 239 SÁ, MPBO ET AL -Comparative study between on-pump and off-pump coronary artery bypass graft in women Bras Cir Cardiovasc 2010; 25(2): 238-244 in outcomes in female patients undergoing on-pump CABG compared with those undergoing OPCAB, tracing the preoperative clinical profile and analyzing the differences in rates of complications and possible differences in mortality rates.
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METHODSWe studied 941 female patients undergoing CABG with two centers: