Spontaneous Atrioventricular Conduction Preservation

The aims of this study are to assess the clinical benefits resulting from SafeR by comparison with standard dual chamber programming (DDD) with a long atrioventricular (AV) delay. The benefits will be assessed by comparing the percentage of ventricular pacing, the incidence of atrial arrhythmias, and the evolution of the hemodynamic status as observed through echo parameter and atrial natriuretic peptide/brain natriuretic peptide (ANP/BNP) measurements.