title: Inappropriate pacing inhibition triggered by QT prolongation due to T wave oversensing in an ICD recipient presenting with long QT syndrome.
abstract: Inappropriate inhibition of atrial pacing due to T-wave oversensing (TWOS) was observed in a patient presenting with congenital long QT syndrome, treated with an implantable cardioverter defibrillator (ICD) and beta-adrenergic blocker. Development of TWOS was associated with further QT interval prolongation in the absence of amplitude changes in the intracardiac T and R waves. Replacement of the ICD generator with a sensing filter designed to attenuate the intracardiac T wave suppressed TWOS and normalized the pacing functions.
authors.affiliation: The First Department of Internal Medicine, Niigata University School of Medicine, Japan.
authors.forename: Kenichi
authors.initials: K
authors.lastname: Iijima
authors.forename: Masaomi
authors.initials: M
authors.lastname: Chinushi
authors.forename: Kanae
authors.initials: K
authors.lastname: Hasegawa
authors.forename: Daisuke
authors.initials: D
authors.lastname: Izumi
authors.forename: Yukio
authors.initials: Y
authors.lastname: Hosaka
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Furushima
authors.forename: Yoshifusa
authors.initials: Y
authors.lastname: Aizawa
mesh_terms: D000368:Aged; D001145:Arrhythmias, Cardiac / Q000503:physiopathology / Q000628:therapy; D017147:Defibrillators, Implantable / Q000009:adverse effects* / Q000706:statistics & numerical data; D004562:Electrocardiography / Q000706:statistics & numerical data; D004868:Equipment Failure; D005260:Female; D006801:Humans; D008133:Long QT Syndrome / Q000151:congenital / Q000503:physiopathology / Q000628:therapy*