Sleep disordered breathing identified as a significant risk factor for malignant ventricular arrhythmias in a collective with implantable cardioverter defibrillator for primary pr…

Background: Sleep-disordered breathing (SDB) poses a relevant risk factor for malignant ventricular arrhythmias in patients suffering from heart failure equipped with an implantable cardioverter defibrillator (ICD). This study seeks to determine the impact of SDB on the incidence of these arrhythmias in a collective of patients with categorical primary prevention ICD indication. Methods: 123 consecutive ICD patients with NYHA II-III heart failure and depressed left ventricular function (EF≤35%) with no history of malignant ventricular arrhythmias underwent a pre-implantation ambulatory sleep study and were prosp…