Problems in managing patients with long QT syndrome and implantable cardioverter defibrillators: a report of two cases.
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
G Y
GY
Pacemaker Center, University of Southern California, Los Angeles, USA.
Kosar
E M
EM
D000319:Adrenergic beta-Antagonists / Q000627:therapeutic use; D000328:Adult; D001262:Atenolol / Q000627:therapeutic use; D017147:Defibrillators, Implantable / Q000009:adverse effects; D004562:Electrocardiography; D005260:Female; D006801:Humans; D008133:Long QT Syndrome / Q000628:therapy*; D008297:Male; D012032:Refractory Period, Electrophysiological; D016171:Torsades de Pointes / Q000628:therapy; D016276:Ventricular Function
D000319:Adrenergic beta-Antagonists; D001262:Atenolol