Fulminant diptheretic myocarditis.

Five cases of fulminant diphtheritic myocarditis are described. Among them, three had extensive faucial diphtheria. Two had minor ECG abnormalities like low voltage QRS complexes. One of the three cases of severe diphtheria had atrioventricular dissociation, one developed LBBB leading to complete heart block, and the last one had ventricular tachycardia. Three of the five children died; all of them had major ECG abnormalities. Prognosis was also related to SGOT levels.