Interference with an Implantable Defibrillator by an Electronic Antitheft-Surveillance Device

Abstract

Implantable cardioverter–defibrillators have an important role in the treatment of patients with ventricular arrhythmias. Electromagnetic interference with permanent pacemakers and implantable defibrillators may have deleterious effects.1–11 Electronic antitheft-surveillance devices, which are widely used in stores, libraries, and other places to prevent theft, are a potential source of electromagnetic interference. Approximately 400,000 of these devices are in use worldwide. Electromagnetic interference with implantable defibrillators can generally be divided into four types. The most common type involves an overcounting of the ventricular rate. Misinterpretation of rapid rates may lead to inappropriate antitachycardia pacing or the delivery of shocks. Since the current . . .