[Recurrent rhythmic cardiomyopathy secondary to idiopathic ventricular tachycardia]

Tachycardia-induced cardiomyopathy consists in severe ventricular dysfunction and heart failure secondary to incessant or prolonged supraventricular or less frequently ventricular tachycardia in the absence of any cardiac disease. We present here a case of recurrent severe cardiomyopathy secondary to idiopathic ventricular tachycardia. Complete sustained recovery in function was observed after successful radiofrequency ablation of the ventricular tachycardia focus. To the best of our knowledge, this is the first report of recurrent tachycardia-induced cardiomyopathy. The diagnosis, aetiology, physiopathology and mechanisms of tachycardia-induced cardiomyopathy are discussed. Several therapeutic implications are presented.