Sudden Bradyarrhythmic Death in Patients with the Implantable Cardioverter‐Defibrillator: Report of Two Cases

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Abstract
Two cases of sudden bradyarrhythmic death necessitating cardiopulmonary resuscitation in patients with the automatic implantable cardioverter‐defibrillator are described. One patient had sudden bradyarrhythmic death while being monitored in the hospital. This patient could not be resuscitated and represents the first reported sudden cardiac death secondary to bradyarrhythmia in a patient with the automatic implantable cardioverter‐defibrillalor. The second patient had an out‐of‐hospital sudden death followed by probable cardioverter‐defibnllator discharge, leading to complete heart block with escape ventricular rhythm necessitating immediate temporary pacemaker insertion. These cases highlight the need for bradycardia back‐up pacing and event monitoring in the newer tachyarrhythmia management devices.