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The Annals of Thoracic Surgery, Vol 21, 215-220, Copyright © 1976 by The Society of Thoracic Surgeons
RJ Flemma, HM Singh, AJ Tector, D Lepley and RP Gabriel
The diagnosis of perioperative myocardial infarction (PMI) in our patients
was based upon electrocardiography, vectorcardiography, and postoperative
enzyme changes. A group of 303 patients operated on between January and
September, 1972, formed the basis of this study. Three groups were
identified from among these patients. Group A was composed of 90
consecutive patients in whom MI was excluded by all criteria. Group B
comprised 25 patients with proved MI and yielded the 8% incidence of MI
among our patients. Group C included 34 patients with triple-vessel disease
who did not sustain MI. Significantly more patients sustaining MI had
preinfarction angina and severe coronary artery disease. The incidence of
MI was also higher in patients with diffuse disease and those in whom the
lesions could not be totally bypassed. A statistical correlation with
longer pump runs and periods of anoxia was obtained. There was some
suggestion that the preoperative location of the hypokinetic segment
determined the site of MI in patients.
ARTICLES
Factors predictive of perioperative myocardial infarction during coronary operations
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