A patient who received a dual chamber implantable cardioverter defibri llator due to long QT syndrome presented with frequent shocks. High dual chamber pacing rate was found to be responsible for triggering frequent premature ventricular beats which initiated polymorphic ventricular tachycardia. Possible mechanisms were discussed.
Keywords: Long QT syndrome, pacemaker, polymorphic ventricular tachycardiaCopyright © 2024 Archives of the Turkish Society of Cardiology