Backman C, Jacobsson KA, Linderholm H, Osterman G. Comparison of some criteria for diagnosing a myocardial infarction after aorto-coronary bypass grafting (CABG).
CLINICAL PHYSIOLOGY (OXFORD, ENGLAND) 1995;
15:307-17. [PMID:
7554765 DOI:
10.1111/j.1475-097x.1995.tb00521.x]
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Abstract
The incidence of myocardial infarction during a 1-year follow-up period after coronary bypass surgery (CABG), i.e. a recent myocardial infarction (RMI), was studied in 86 patients. Different criteria for the diagnosis of a RMI were compared. Clinical observation, including ECG and serum enzyme analysis, diagnosed RMI in 8% of patients. Specific ECG changes indicating RMI (ECGsp) occurred in 12% of cases, and if less specific ECG changes were also taken into account (ECGsp+nonsp) RMI was found in 30% of cases. Asynergy, detected by two-plane ventriculography, indicated RMI in 24% of the patients, and was probably the most valid of the criteria examined. The differences in diagnostic accuracy of the various criteria highlight the importance of defining diagnostic criteria.
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