Referral Pattern and Outcome in Men and Women Undergoing Coronary Artery Bypass Surgery

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Abstract
Women with coronary artery disease are less likely to undergo coronary artery bypass surgery, and this may represent a potential referral bias in favor of men. A higher in- hospital mortality rate in women compared with men has been reported earlier. Accumulating evidence currently suggests, however, that variables other than gender, such as advanced age, late referral, angina classification, diabetes mellitus, concurrent medical conditions, the number of diseased vessels, the caliber of coronary arteries, and the decreased body surface area in women may have accounted for this difference. In fact, when these variables are taken into account, female gender is no longer a statisti cally significant predictor of operative mortality. Women appear to have comparable immediate and late survival rates. Recurrent angina, perioperative myocardial infarc tion, congestive heart failure, incomplete revascularization, and early and late graft reoc clusion following surgery are, however, more prevalent in women. Men and women show differences in recovery experiences after discharge following bypass surgery. When coronary bypass surgery is offered to women, the decision should be individ ualized, based on the patients' perioperative baseline clinical risk factors and coronary anatomy. Coronary artery bypass surgery should not be withheld in women who are considered to be appropriate candidates for fear of a reduced success rate.