[Cardiomyopathy induced by tachycardia: description of a typical clinical case].
Different chronic tachyarrhythmias may cause a form of reversible myocardial dysfunction and left ventricular enlargement known as tachycardia-induced cardiomyopathy. Many authors in recent years observed that the control of heart rate or interruption of the arrhythmia were frequently associated with a significant improvement in ventricular function and a reduction of cardiac dimensions. We report a case of tachycardia-induced cardiomyopathy secondary to atrial fibrillation of unknown duration which occurred in a young patient with structurally normal heart. The regression of left ventricular enlargement and the recovery of left ventricular systolic function were complete few months after the restoration of sinus rhythm.
Gardini
A
A
Sezione di Cardiostimolazione, Casa di Cura S. Anna, Brescia.
D'Aloia
A
A
Faggiano
P
P
Benedini
G
G
D000328:Adult; D001146:Arrhythmia, Sinus / Q000000981:diagnostic imaging / Q000209:etiology / Q000628:therapy; D001281:Atrial Fibrillation / Q000150:complications* / Q000000981:diagnostic imaging / Q000628:therapy; D009202:Cardiomyopathies / Q000000981:diagnostic imaging / Q000209:etiology* / Q000628:therapy; D004452:Echocardiography; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D018487:Ventricular Dysfunction, Left / Q000000981:diagnostic imaging / Q000209:etiology* / Q000628:therapy