Article

Myocardial revascularization at The Cleveland Clinic Foundation—1980

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Abstract

In this second decade of coronary artery surgery, the number of procedures has increased 15% to 20% each year. Seventy-five percent of these operations are performed in the private sector.1 Advances in myocardial protection, number of grafts per patient, blood usage, and perioperative management require close surveillance to determine the impact on early and late clinical results.2

Results of coronary artery surgery from The Cleveland Clinic Foundation include a 10- to 13-year follow-up of 741 patients in the 1967 to 1970 experience3 and 5-year survival from 1000 patient cohorts from 1971 to 1974.4 In 1980 we reviewed the experience of the previous year in coronary artery surgery.5 Herein we report all cases of isolated bypass grafting during 1980.

Methods

All patients who underwent only myocardial revascularization from January 1, 1980 through December 31, 1980 were entered into a computer base registry. Included were patients who underwent emergency and elective surgery, reoperations, and had normal or abnormal left ventricular function. Patients who underwent coronary artery bypass surgery combined with either peripheral vascular operations, ventricular aneurysmectomy, or valve repair or replacement were excluded.

Clinical characteristics

A total of 2443 patients, 2121 (86.8%) men and 322 (13.2%) women were operated on in the calendar year 1980. The age range was 28 through 80 years. The median age increased from 57 years in 1979 to 58 in 1980, continuing the upward trend of the past 13 years. Preoperatively, 562 (23.0%) had no symptoms or mild symptoms, 1463 (59.9%) had moderate angina, and 418 (17.1%) . . .


 

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