In two patients with Long QT syndrome and an ICD, T wave oversensing was identified as a complication, highlighting the need to avoid interventions that adversely affect repolarization.
Case Report (n=2)
What are potential interactions between Long QT syndrome and ICDs, and how can they be managed?
In patients with LQTS and an ICD, T wave oversensing should be considered and interventions that may adversely affect repolarization should be avoided.
Implantable cardioverter-defibrillators (ICDs) have been a successful adjunct to the management of arrhythmias in patients with Long QT syndrome (LQTS). In two patients, interactions between LQTS and the ICD were diagnosed and corrected. Oversensing of T waves was confirmed in the first, while in the second, the arrhythmia disappeared when T wave abnormalities improved after cessation of H2 blocker therapy. In patients with LQTS and an ICD, T wave oversensing should be considered. Interventions that may have an adverse effect on repolarization should be avoided.
Perry et al. (Wed,) conducted a case report in Long QT syndrome (LQTS) with Implantable Cardioverter Defibrillators (ICDs) (n=2). Implantable cardioverter-defibrillators (ICDs) was evaluated on Interactions between LQTS and the ICD (T wave oversensing). In two patients with Long QT syndrome and an ICD, T wave oversensing was identified as a complication, highlighting the need to avoid interventions that adversely affect repolarization.