Cardiac ResynchrOniSation Via Stimulation of the LEFT Bundle in AF Patients.

Permanent ventricular pacing may be complicated with ventricular dyssynchrony and subsequent pacing-induced cardiomyopathy. We hypothesized that left bundle branch area pacing may prevent the development of pacing-induced cardiomyopathy in patients with permanent atrial fibrillation requiring permanent ventricular pacing. Patients with permanent atrial arrhythmia with an indication of cardiac pacing and atrioventricular junction ablation will be prospectively enrolled. They will undergo the implantation of a single-chamber pacemaker with left bundle branch area pacing, and then atrioventricular junction ablation. They will be prospectively followed during 6 months.