The value of electrophysiologic study in decision-making regarding the need for pacemaker implantation after TAVI

Purpose The purpose of this study was to evaluate electrophysiologic study (EPS) in risk stratification of relative indications for pacemaker implantation (PMI) after transcatheter aortic valve implantation (TAVI). Methods We reviewed files of all patients who had a left bundle branch block (LBBB) and underwent EPS after TAVI between 3/2009 and 5/2015. The indications for EPS were new-onset LBBB and the presence of an old or a new-onset LBBB associated with either PR prolongation after TAVI (∆PR >20 ms) or with “slow” atrial fibrillation (20 ms ( n = 9, 34.6%), baseline LBBB + ∆PR >20 ms ( n = 7, 26.9%) and new LBBB + slow AF 20 ms are at a higher risk of mortality and late PMI at 1-year follow-up. EPS can be used to safely identify patients in whom a PMI is needed.