title: Magnets and implantable cardioverter defibrillators: what's the problem?
abstract: A growing number of surgical patients present to the operating room with implantable cardioverter defibrillators (ICD). Peri-operative care of these patients dictates that ICD function be suspended for many surgical procedures to avoid inappropriate, and possibly harmful, ICD therapy triggered by electromagnetic interference (EMI). An alternative to reprogramming the ICD is the use of a magnet to temporarily suspend its function. However, this approach is not without complications. We report a case where magnet use failed to inhibit ICD sensing of EMI, and a shock was delivered to the patient. Measures to decrease EMI, controversies regarding magnet use, and expert recommendations are discussed.
authors.affiliation: Clinical Anaesthesiology, Division of Cardiac Anesthesia and Department of Anaesthesiology, Perioperative Medicine and Pain Management, University of Miami Miller School of Medicine, Miami, Florida 33136, USA.
authors.forename: Yiliam F
authors.initials: YF
authors.lastname: Rodriguez-Blanco
authors.forename: Fouad
authors.initials: F
authors.lastname: Souki
authors.forename: Evelyn
authors.initials: E
authors.lastname: Tamayo
authors.forename: Keith
authors.initials: K
authors.lastname: Candiotti
mesh_terms: D000368:Aged; D017147:Defibrillators, Implantable; D004564:Electrocoagulation; D004574:Electromagnetic Fields; D055590:Electromagnetic Phenomena; D004597:Electroshock; D006801:Humans; D059346:Magnets; D008297:Male; D016343:Monitoring, Intraoperative; D009062:Mouth Neoplasms / Q000601:surgery; D019990:Perioperative Care; D013514:Surgical Procedures, Operative / Q000379:methods*