[Determination of glycogen phosphorylase B--a contribution to the enzymatic diagnosis of acute myocardial infarct].

On the basis of a small number of patients with the tentative diagnosis acute myocardial infarction the diagnostic valency of the glycogen phosphorylase was tested. A separation between severe stenocardia and myocardial infarction is possible. After simplification of the methodology the glycogen phosphorylase might substitute in higher specifity the creatinine kinase.