Vol 14, No 2 (2019)
Electrotherapy
Published online: 2019-05-22
Ineffective cardioverter-defibrillator therapy due to an increase in defibrillation threshold
DOI: 10.5603/FC.2019.0041
Folia Cardiologica 2019;14(2):220-222.
Abstract
We present the case report of a 28 year-old man with postmyocarditis cardiomyopathy and cardioverter-defibrillator (ICD) implantation in secondary prevention. He survived an episode of circulatory arrest due to ventricular fibrillation/ polymorphic ventricular tachycardia. All high energy therapy delivered by ICD was unsuccessful. The reason for the failure of the therapy was an increase in the defibrillation threshold. The implantation of an additional subcutaneous lead lowered the defibrillation threshold.
Keywords: high defibrillation thresholdunsuccessful ICD defibrillationsubcutaneous defibrillation lead
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