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  • Title: Diagnostic efficiency of lactate dehydrogenase isoenzymes in serum after acute myocardial infarction.
    Author: Jensen AE, Reikvam A, Asberg A.
    Journal: Scand J Clin Lab Invest; 1990 May; 50(3):285-9. PubMed ID: 2353157.
    Abstract:
    Diagnostic efficiency of lactate dehydrogenase isoenzymes were studied in 117 consecutive patients admitted with some symptoms of acute myocardial infarction. The results of lactate dehydrogenase isoenzyme tests were not available to the physicians, who diagnosed the patients according to criteria based on clinical symptoms, electrocardiographic findings and changes in three serum enzymes. Acute myocardial infarction was diagnosed in 41 patients. The diagnostic efficiency of lactate dehydrogenase isoenzyme 1 and the various ratios between this and the other isoenzymes were compared using receiver operating characteristic curves and logistic discriminant analysis. Lactate dehydrogenase isoenzyme 1 was the best parameter on the second day after admission. On that day, calculating the various ratios between isoenzyme 1 and the other isoenzymes did not improve discrimination.
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