title: Inappropriate Implantable Cardioverter-Defibrillator Shock from QRS Double Counting in the Setting of Hyperkalemia.
abstract: This case shows the complexity of arrhythmia management in patients with implantable cardioverter-defibrillators (ICDs) who present with hyperkalemia. In order to prevent inappropriate ICD shock, consideration should be given to the suspension of ICD therapies while intensive care treatment of extreme electrolyte derangements is being pursued. Patients in these setting should be closely monitored until their electrocardiograms have normalized, after which the device can safely be reactivated.
authors.affiliation: Division of Electrophysiology, Department of Medicine, University of California, San Francisco, 500 Parnassus Avenue, San Francisco, CA 94143, USA.
authors.forename: Akash
authors.initials: A
authors.lastname: Dadlani
authors.affiliation: Division of Electrophysiology, Department of Medicine, University of California, San Francisco, 500 Parnassus Avenue, San Francisco, CA 94143, USA.
authors.forename: Jonathan W
authors.initials: JW
authors.lastname: Dukes
authors.affiliation: Division of Electrophysiology, Department of Medicine, University of California, San Francisco, 500 Parnassus Avenue, San Francisco, CA 94143, USA. Electronic address: badhwar@medicine.ucsf.edu.
authors.forename: Nitish
authors.initials: N
authors.lastname: Badhwar
mesh_terms: D017147:Defibrillators, Implantable / Q000009:adverse effects*; D004562:Electrocardiography; D004868:Equipment Failure; D006801:Humans; D006947:Hyperkalemia; D008297:Male; D008875:Middle Aged
keywords: Hyperkalemia; ICD; Inappropriate shock