Acute myocardial infarction and ischemic injury during surgery for coronary artery disease. |
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Authors: | H N Hultgren U R Shettigar J F Pfeifer W W Angell |
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Affiliation: | 1. Palo Alto, USA;2. Stanford, Calif., USA |
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Abstract: | The incidence of myocardial infarction, acute ischemic injury, and associated serum enzyme abnormalities has been evaluated in four operations involving the coronary circulation. The highest incidence of infarction was associated with internal mammary implantation (Vineberg procedure). There was no significant difference in the incidence of infarction, ischemic injury, or abnormal enzyme levels between patients with stable angina and those with unstable angina who had vein bypass surgery. In operations involving combined vein bypass grafting and valve replacement surgery, the incidence of abnormal serum enzyme elevations was higher than in any other procedure. The incidence of infarction and acute ischemic injury in combined operations was similar to that in other procedures but this may have been due to the difficulty in the ECG diagnosis of infarction in this group of patients, most of whom had abnormal preoperative ECGs. |
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Keywords: | Reprint requests: Herbert N. Hultgren M.D. Chief Cardiology Service Veterans Administration Hospital 3801 Miranda Ave. Palo Alto Calif. 94304. |
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