title: Case report: use caution when applying magnets to pacemakers or defibrillators for surgery.
abstract: The application of a magnet to a pacemaker (intended to cause asynchronous pacing) or implanted cardioverter defibrillator (intended to prevent shocks) during surgery without a clear understanding of actual magnet function(s) or precautions can have unexpected, untoward, or harmful consequences. In this report, we present 3 cases in which inadequate assessment of cardiac implanted electronic device (CIED) function, coupled with magnet application, contributed to or resulted in inappropriate antitachycardia pacing or shocks, CIED damage, or patient injury. Although these cases might be rare, they reinforce the need for a timely, detailed preoperative review of CIED function and programming as recommended by the American Society of Anesthesiologists and the Heart Rhythm Society.
authors.affiliation: Department of Anesthesiology & Perioperative Medicine, Oregon Health and Science University, Portland, OR, USA.
authors.forename: Peter M
authors.initials: PM
authors.lastname: Schulman
authors.forename: Marc A
authors.initials: MA
authors.lastname: Rozner
mesh_terms: D000328:Adult; D000368:Aged; D001145:Arrhythmias, Cardiac / Q000175:diagnosis / Q000503:physiopathology / Q000628:therapy*; D017147:Defibrillators, Implantable; D004562:Electrocardiography; D004867:Equipment Design; D004868:Equipment Failure; D006801:Humans; D007430:Intraoperative Care; D059346:Magnets / Q000009:adverse effects*; D008297:Male; D010138:Pacemaker, Artificial; D011237:Predictive Value of Tests; D011474:Prosthesis Design; D011475:Prosthesis Failure; D012307:Risk Factors