PROBLEMS IN MANAGING PATIENTS WITH LONG QT SYNDROME AND IMPLANTABLE CARDIOVERTER-DEFIBRILLATORS - A REPORT OF 2 CASES

Implantable cardioverter-defibrillators (ICDs) have been a successful adjunct to the management of arrhythmias in patients with Long QT synd rome (LQTS). In two patients, interactions between LQTS and the ICD we re diagnosed and corrected. Oversensing of T waves was confirmed in th e first, while in the second, the arrhythmia disappeared when T wave a bnormalities improved after cessation of H-2 blocker therapy. In patie nts with LQTS and an ICD, T wave oversensing should be considered. int erventions that may have an adverse effect on repolarization should be avoided.