Resolution of T-wave oversensing with implantable cardioverter defibrillator generator replacement in an adolescent.
Inappropriate 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.
Tuzcu
Volkan
V
Arkansas Children's Hospital, University of Arkansas for Medical Sciences, Little Rock, Arkansas 72202, USA. tuzcuvolkan@uams.edu
D000293:Adolescent; D017147:Defibrillators, Implantable; D004562:Electrocardiography; D004868:Equipment Failure; D006801:Humans; D008133:Long QT Syndrome / Q000151:congenital / Q000503:physiopathology / Q000628:therapy*; D008297:Male