HVi prolongation post TAVR did not indicate a higher risk for progression rate to HAVB
syncope, HAVB
We report a significant prolongation of the HVi by 22% after TAVR using a self-expandable valve and by 19% using a balloon-expandable valve. His bundle recordings have been used for several decades for risk assessment of HAVB in patients with BBB and syncope [A prolonged HVi ≥ 70 ms, or HVi ≥ 100 ms after pharmacological stress or induction of HAVB by atrial pacing or by pharmacological stress, identifies a group at higher risk of developing HAVB [