Clinical Observational Registry of Patients With Left Bundle Branch Block

Registro Osservazionale Dei Pazienti Con Blocco Della Branca Sinistra

The electromechanical dyssynchrony induced by the presence of LBBB is in some patients, but not all, the cause of progressive left ventricular systolic dysfunction and heart failure.

Aims

1. To investigate the clinical, ECG, imaging-derived features in a large cohort of patients affected by LBBB on ECG.
2. To identify predictors of LBBB-induced LV systolic dysfunction and predictors of outcome in this population.
3. To derive data which may have an impact on therapeutic management.

Inclusion Criteria:

• LBBB on ECG

Exclusion Criteria:

• Previous extensive anterior myocardial infarction
• Previous cardiac surgery or transcatheter aortic valve implantation (TAVI)
• Congenital structural heart disease
• Patients implanted with permanent right ventricular stimulation devices and permanent pacing
• Denial to consent