Europace : European pacing, arrhythmias, and cardiac electrophysiology : journal of the working groups on cardiac pacing, arrhythmias, and cardiac cellular electrophysiology of the European Society of Cardiology
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Inefficacy of implantable cardioverter/defibrillator (ICD) shocks or inappropriate shocks in ICD patients may occur due to mechanical or technical failure of the device. In our unusual case of ICD defibrillation failure, faulty insertion and configuration of the defibrillation lead in the header port resulted in ineffective shock therapies and a non-determinable defibrillation threshold. In cases of successless defibrillations during or after ICD implantation, this problem should be considered.
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Cardiac remote telemetry (CR-TEL) is in wide use in cardiac units, but its diagnostic value in the setting of unexplained syncope is unknown. ⋯ Cardiac remote telemetry appears to be a useful tool in the management of patients with unexplained syncope, especially in those older and presenting heart failure on admission.