Andrea Avella

Learn More
INTRODUCTION Congestive heart failure (CHF) and atrial fibrillation (AF) are frequently linked, and when associated produce additive deleterious effects. In this prospective study, the effects of catheter ablation for AF in patients with impaired left ventricular (LV) function are presented. METHODS Baseline data and clinical outcome have been(More)
BACKGROUND The diagnosis of arrhythmogenic right ventricular cardiomyopathy can be challenging. Disease-causing mutations in desmosomal genes have been identified. A novel diagnostic feature, loss of immunoreactivity for plakoglobin from the intercalated disks, recently was proposed. OBJECTIVE The purpose of this study was to identify two novel mutations(More)
BACKGROUND Recent studies suggest that cardiac resynchronization therapy (CRT) with a quadripolar left ventricular (LV) lead results in low rates of dislocation and phrenic nerve stimulation (PNS) acutely and at short-term follow-up. Confirmation of these results by long-term observational studies is needed. OBJECTIVE To evaluate the long-term procedural(More)
INTRODUCTION Atrial fibrillation (AF) and diabetes mellitus type 2 (DM2) often coexist; however, a small number of patients with DM2 undergoing catheter ablation (CA) of AF have been included in previous studies. The aim of this study was to evaluate safety and efficacy of ablation therapy in DM2 patients with drug refractory AF. METHODS AND RESULTS From(More)
UNLABELLED Voltage Mapping-Guided Biopsy in ARVC/D. INTRODUCTION To improve the endomyocardial biopsy (EMB) diagnostic sensitivity for arrhythmogenic right ventricular cardiomyopathy/dysplasia (ARVC/D), we hypothesized a biopsy sampling focused on selected right ventricle (RV) low-voltage areas identified by electroanatomic voltage mapping. METHODS AND(More)
BACKGROUND A novel catheter design (HD Mesh ablator, Bard) combining high-density circumferential mapping and direct radiofrequency (RF) energy delivery has been developed to map and isolate the pulmonary veins (PVs). OBJECTIVE The purpose of this study was to assess the feasibility of the Mesh catheter for PV isolation in patients with paroxysmal atrial(More)
BACKGROUND There are few studies on cardiac resynchronization therapy (CRT) in heart failure (HF) patients with preexisting right ventricular (RV) pacing. The purpose of this study was to determine the efficacy of CRT upgrading in RV-paced patients and the predictivity of electromechanical dyssynchrony parameters (EDP) evaluated by standard echocardiography(More)
BACKGROUND Pulmonary vein isolation (PVI) achieved using a cryoballoon has been shown to be safe and effective. This treatment modality has limited effectiveness for treatment of persistent atrial fibrillation (AF). OBJECTIVE The purpose of this study was to evaluate a combined approach using a cryoballoon for treatment of PVI and focal radiofrequency(More)
Atrial tachycardias are relatively common in patients with congenital heart disease. However, complex anomalies involving the heart and the great vessels might compromise the results of the ablation procedure. This report describes a clinical application of the new Cartosound™ module as an adjunctive technology to understand the mechanism of the arrhythmia(More)