T-wave alternans associated with heart failure and hypomagnesemia in alcoholic cardiomyopathy.
Marked T wave abnormality developed in a patient with alcoholic cardiomyopathy. The T negativity was  of giant size and occurred in an alternating sequence in the presence of sinus rhythm. This change was rapidly transient, disappearing in 3 days. The complete electrocardiographic recovery was temporally related to successful treatment of severe heart failure, normalization of initially low serum magnesium level, and abolition of recurrent ventricular fibrillation.
D000437:Alcoholism / Q000150:complications*; D004562:Electrocardiography; D006331:Heart Diseases / Q000150:complications* / Q000209:etiology; D006333:Heart Failure / Q000150:complications / Q000209:etiology*; D006801:Humans; D008274:Magnesium / Q000097:blood*; D008297:Male; D008875:Middle Aged
D008274:Magnesium