Malfunction of an MRI-Conditional Pacemaker Following an MRI

Figure 2 Also from the initial interrogation of device. Note the date of SureScan on and off, 16-Jan-1996 (underlined in red), and the evidence of pacer dependence, with 499.9% ventricular pacing. Introduction Patients with cardiac implantable electronic devices were historically unable to undergo magnetic resonance imaging (MRI). In 2011 the Food and Drug Administration approved the first MRI conditional pacemaker system, the Revo MRI SureScan (Medtronic, Mounds View, MN). As per manufacturer recommendations, the Revo and other MRI conditional systems should be interrogated immediately before the MRI scan to activate the “SureScan” setting and immediately after the scan to confirm appropriate device function and enable restoration of pre-MRI settings. MRI conditional pacemakers are specifically designed to minimize the risk of malfunction in the MRI environment. We report a case of an MRI conditional pacemaker system that malfunctioned at the time of an MRI scan and required a premature generator change procedure.