• Pacing Clin Electrophysiol · Jul 2007

    Case Reports

    Resolution of T-wave oversensing with implantable cardioverter defibrillator generator replacement in an adolescent.

    • Volkan Tuzcu.
    • Arkansas Children's Hospital, University of Arkansas for Medical Sciences, Little Rock, Arkansas 72202, USA. tuzcuvolkan@uams.edu
    • Pacing Clin Electrophysiol. 2007 Jul 1; 30 (7): 929-32.

    AbstractInappropriate delivery of therapy due to T-wave oversensing is a frequent complication of intracardiac cardioverter defibrillators (ICD). A 16-year-old adolescent with congenital long QT syndrome type 3 underwent single-chamber implantable cardioverter defibrillator (ICD) (EnTrust VR, Medtronic Inc., Minneapolis, MN, USA) implantation.He received two appropriate and four inappropriate shocks. The inappropriate shocks were due to T-wave oversensing. Following the replacement of ICD with a different brand generator (Vitality 2 VR, Boston Scientific Inc., Natick, MA, USA), no more T-wave oversensing is noted. Proper filtering is imperative in ICDs in order to prevent T-wave oversensing-related inappropriate delivery of therapy.

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