title: Implantable cardioverter defibrillator T wave oversensing caused by hyperglycemia.
abstract: This case report highlights a previously unreported cause of T wave oversensing in a patient with an ICD and recent onset diabetes. Consistent T wave oversensing was observed at elevated serum glucose levels and this finding was reproduced with a glucose challenge. No T wave oversensing was seen during treatment of hyperglycemia. Alterations in serum chemistry may account for intermittent T wave oversensing in patients with ICDs.
authors.affiliation: Division of Cardiac Electrophysiology, Medical College of Virginia, Virginia Commonwealth University, Richmond 23298-0053, USA.
authors.forename: A
authors.initials: A
authors.lastname: Krishen
authors.forename: R K
authors.initials: RK
authors.lastname: Shepard
authors.forename: J A
authors.initials: JA
authors.lastname: Leffler
authors.forename: M A
authors.initials: MA
authors.lastname: Wood
authors.forename: K A
authors.initials: KA
authors.lastname: Ellenbogen
mesh_terms: D017147:Defibrillators, Implantable / Q000009:adverse effects*; D004562:Electrocardiography; D004868:Equipment Failure; D006333:Heart Failure / Q000150:complications; D006801:Humans; D006943:Hyperglycemia / Q000150:complications / Q000503:physiopathology*; D008297:Male; D008875:Middle Aged; D017180:Tachycardia, Ventricular / Q000628:therapy