Abstract 2880: Safety of Pacemakers and Cardioverter-defibrillators in Magnetic Navigation System With 0.1 Tesla Field Strength
Background: Pacemaker and implantable cardioverter defibrillator (ICD) systems may interfere with magnetic fields causing temporary or permanent system malfunction. Magnetic navigation systems are increasingly used in electrophysiological and coronary procedures. The aim of the study was to evaluate potential interference of magnetic navigation systems with implantable rhythm devices.
Methods: A total of 126 devices (88 different models from 52 model families by 7 manufacturers; 58 different pacemakers and 30 different ICD) were exposed to an activated NIOBE® Magnetic Navigation System (Stereotaxis, St. Louis, USA) with a magnetic field strength of 0.1 Tesla. Potential interference with antibradycardia and antitachycardia device function, battery status and activation of safety mode parameters were evaluated.
Results: The Medtronic Kappa pacemaker family models reproducibly demonstrated inappropriate detection of elective replacement interval, reed switch activation, partial power on reset, loss of sensor’s activity and change of stored implantation date. All aggregates of the product family displaying functional alterations could be reprogrammed when removed from the magnetic field. All other studied models showed no interference.
Conclusion: Interference of pacemaker and ICD devices with a magnetic navigation system of 0.1 Tesla field strength is rare. Dysfunction of devices were temporary and all devices could be reprogrammed.