Predictive Value of Pre-TAVI Infrahissian Conduction Time in the Occurrence of Complete Atrioventricular Block

Inclusion Criteria: * Patient suffering from severe aortic stenosis, eligible for a TAVI procedure (Transcatheter Aortic Valve Implantation) ; * Patient presenting with complete right bundle branch block during the pre-TAVI electrocardiogram, with QRS interval ≥ 120 ms (depolarization of the ventricles); * Patient able to understand the information related to the study, to read the information leaflet and agreeing to participate in the study. ; * Patient having signed a consent. Exclusion Criteria: * Contraindication to Transcatheter Aortic Valve Implantation ; * Patient under guardianship or curatorship, or under a regime of deprivation of liberty; * Patient participating in another clinical trial, or in a period of exclusion from another clinical trial; * Patient not benefiting from a social security scheme.