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Ann Thorac Surg 1986;42:550-553
© 1986 The Society of Thoracic Surgeons
From the Tampa Heart Center, Tampa General Hospital, Tampa, FL
* Address reprint requests to Dr. Jeffery, 4 Columbia Dr, Suite 830, Tampa, FL 33606
One hundred two female and 102 male patients all older than 70 years who underwent coronary artery bypass grafting (CABG) between 1978 and 1983 were matched according to age, anginal status, ejection fraction (EF), number of bypass grafts, and year of operation. These 204 patients were characterized by a mean age of 73 years, a mean EF of 64%, a mean of 3.2 bypass grafts per patient, and unstable angina in 82%. Statistical analyses were performed on the following variables in conjunction with patient sex to determine whether the two samples (women and men) can be considered representative of a single patient population: preoperative resting ECG, stress test result, number of diseased vessels, left ventricular end-diastolic pressure, presence of carotid artery disease, use of an internal mammary artery graft, incidence of operative death, perioperative myocardial infarction (MI), hospital complications, late MI, recurrent angina, late death, and cumulative survival. All differences were small and failed to reach statistical significance except that women had a higher incidence of recurrent angina-like chest pain and a higher incidence of ischemic changes in the preoperative ECG and men had a higher incidence of conduction abnormalities. We conclude that in this age group, CABG is equally beneficial to women and men in terms of survival, but may result in less subjective symptomatic benefit in women.
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