alexa Late outcome of coronary artery bypass grafting in young versus older patients.

Author(s): RohrerGubler I, Niederhauser U, Turina MI

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Abstract BACKGROUND: We compared long-term results of coronary artery bypass grafting between 1976 and 1988 in 176 patients 40 years old or younger with a matched control group of 176 patients 25 to 30 years older. METHODS: Mean age was 37.4 +/- 2.7 years (+/- standard deviation) in the study group and 64.2 +/- 2.9 years in the control group. Matching criteria were age, sex, left ventricular ejection fraction, number of bypass grafts, and year of operation. RESULTS: The study group had more smokers (p = 0.000) and more patients with hypercholesterolemia (p = 0.026), unstable angina (p = 0.003), and preoperative myocardial infarction (p = 0.009); fewer patients had hypertension (p = 0.000) and diabetes (p = 0.005) in this group than in the control group. The internal mammary artery was used in 31\% of the study patients and in 30\% of the controls. The actuarial survival rates after 5, 10, and 15 years were 92\%, 86\%, and 72\% in the study group and 92\%, 86\%, and 66\% in the control group (p = 0.202). Young age was a predictor of cardiac reoperation. CONCLUSIONS: Late survival is similar for young and older patients, but the reintervention rate is higher in the younger group. The absence of unstable angina, a left ventricular ejection fraction greater than 0.45, and the use of internal mammary artery grafts increase survival in all patients.
This article was published in Ann Thorac Surg and referenced in

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