Accidental Left Ventricular Placement of a Leadless Micra Pacemaker Through a Patent Foramen Ovale.

The Micra device is a leadless pacemaker implanted in the right ventricle via a femoral vein transcatheter approach. There are several indications for and advantages to using a leadless pacemaker, and the device's role in the field of cardiology will probably continue to increase. This article presents the case of a rare complication probably due to inadvertent placement of the device in the left ventricle across an undiagnosed patent foramen ovale.