Abstract 18476: Ventricular Ectopy During Leadless Pacemaker Implantation is Associated With Favorable Stable Sensing and Capture Thresholds

Introduction: Leadless pacemaker implantations are increasingly common in the US and around the world. At the current moment, it remains unclear any potential early predictors or factors associated with a positive electrical outcomes such as improvement of sensing & ventricular capture thresholds. Minimizing the amount of time under fluoroscopy is beneficial for patients, practitioners and institutions. Obtaining favorable placement upon the first attempts at deployment allow shorter procedure and fluoroscopy times Hypothesis: We hypothesized that the presence of brief ventricular ectopy (VT) upon leadless pacemakers deployment is associated with optimal electrical outcomes such a improvement of sensing & ventricular capture thresholds Methods: A total of twelve (12) consecutive leadless pacemakers implantations were performed with the Medtronic Micra leadless pacemaker system .Patient demographics, cardiac history, left ventricular function (EF) & indications were obtained . VT while performing the “ pul...