Advancements in Leadless Pacemakers: What the Second-generation Micra AV2 Brings to Cardiac Care.

Leadless pacemakers are considered one of the major technological advancements in cardiology in recent years. Many efforts are made to provide physiological atrio-ventricular (AV) pacing. With the first-generation leadless ventricular, dual, dual (VDD) pacemaker, Micra AV (Medtronic, Inc., Minneapolis, MN, USA), a high variability in AV synchrony was reported. A second generation, Micra AV2, is now available for clinical use, promising smarter and higher automatic AV synchrony. This article reviews the different improvements proposed for this new device.