title: [Cardiomyopathy induced by frequent premature ventricular complexes originating from the right ventricular outflow tract: left ventricular systolic function recovery after transcatheter ablation].
abstract: Left ventricular dysfunction due to frequent isolated premature ventricular complexes originating from the right ventricular outflow tract (RVOT) in patients without structural heart disease and in the absence of sustained ventricular tachycardia is a rare and poorly characterized entity. Successful identification and radiofrequency catheter ablation of the focal source of ventricular ectopy is the most effective treatment for these patients, leading to a complete normalization of ventricular dimensions and contractile function. In this article, we report two cases of left ventricular dysfunction resulting from frequent isolated premature ventricular complexes originating from the RVOT. After successful ablation of the ectopic focus, improvement of functional status and left ventricular function was observed in both patients, confirming the initial diagnostic hypothesis of a cardiomyopathy induced by repetitive ventricular ectopic beats from the RVOT.
authors: Clinica di Cardiologia, Azienda Ospedaliera Ospedali Riuniti di Ancona, Universita Politecnica delle Marche. enrico_rita@yahoo.it
authors: Enrico
authors: E
authors: Rita
authors: Alessandro
authors: A
authors: Marinelli
authors: Pietro
authors: P
authors: Scipione
authors: Paolo
authors: P
authors: Cecchetti
authors: Silvano
authors: S
authors: Molini
authors: Agostino
authors: A
authors: Misiani
authors: Giuseppe
authors: G
authors: Pupita
authors: Alessandro
authors: A
authors: Capucci