LAUSR

Type of funding sources: None. Leadless pacemakers (LPM) have demonstrated adequate electrical performance and safety in patients with multiple commorbidities. Limited information has been published about patients with LPM and heart valve replacements. We were interested to present our experience in patients with LPM and heart valve replacements. This was a prospective observational study in which we include all consecutive LPM implantation in a 5 year period (June 1 2005 to January 1 2020). Clinical, electrical and echocardiographic characteristics were described and evaluated in 2 different groups with and with-out surgical procedure. A total of 242 LPM were implanted. We describe clinical and echocardiographic characteristics in patients table 1. There were no significant differences in electrical performance in between both groups (Figure 1). In our series with LPM we observed adequate electrical performance as well as safety at implant and follow-up in patients with heart valve replacements. No valve procedure185Valve procedure61pAge79.2 (±6.4)79.7 (±8)0.6395Men114340.78866Hypertension151440.899914Diabetes Mellitus58190.635131COPD3470.345258Renal insufficiency29160.000717Ischemic cardiomiopathy36140.495789LVEF59.9 (±7.6)590.036577Single mechanical replacement18Single bioprosthetic replacement12Bioprosthetic valve + TV annuloplasty3Bioprosthetic valve + MV & TV annuloplasty1Mechanical valve + TV annuloplasty2Sigle MV annuloplasty1MV & TV annuloplasty2Abstract Figure.