Spontaneous ventricular tachycardia and fibrillation in a patient with a positive microvolt T wave alternans test and negative electrophysiological study.
This report describes a patient with a previous myocardial infarction who presented with syncope. The patient had a positive microvolt T wave alternans test, a negative electrophysiological study, and a normal heart rate variability. In hospital, the patient had episodes of ventricular tachycardia and fibrillation. An implantable cardioverter defibrillator was implanted and during the following week it discharged appropriately.
Molon
Giulio
G
Department of Cardiology, Sacro Cuore Hospital, Verona, Italy. guilio.molon@tin.it
Marangoni
Danielle
D
Barbieri
Enrico
E
D000368:Aged; D017147:Defibrillators, Implantable; D022062:Electrophysiologic Techniques, Cardiac; D006801:Humans; D008297:Male; D009203:Myocardial Infarction / Q000150:complications; D013575:Syncope / Q000150:complications; D017180:Tachycardia, Ventricular / Q000209:etiology* / Q000628:therapy; D014693:Ventricular Fibrillation / Q000209:etiology* / Q000628:therapy