Bifocal Right Ventricular PAcing in Right Bundle Branch blocK and Heart Failure With Reduced Ejection Fraction. The Study Tests the Superiority of Right Ventricular Bifocal Stimulation Over VVI Implantable Defibrillator in Right Bundle Branch Block and Heart Failure.

Stopped Non superiority of treatment arm (and hypothesized inferiority) before completion of enrolling, at ad interim analysis

Conditions

• Right Bundle-Branch Block
• Heart Failure With Reduced Ejection Fraction
• Bifocal Stimulation

Interventions

• DEVICE: Compare VVi mode versus DDD bifocal stimulation through crossover randomization

Sponsor

Azienda Ospedaliero Universitaria Maggiore della Carita