Key result
A patient with a dual chamber ICD experienced multiple hardware complications, including ventricular oversensing, an insulation defect, and device dysfunction requiring operative revisions.
Case Report (n=1)
Complex ICD systems can lead to multiple, difficult-to-diagnose hardware complications requiring operative revisions.
Warrants vigilance for hardware complications in dual-chamber ICDs; leaves open questions on incidence and prevention strategies.
Hardware-related complications in implantable cardioverter/defibrillators (ICD) are still a common problem. Identifying underlying reasons becomes more and more difficult as the complexity of ICD systems increases. We report a patient with a dual chamber ICD (DDD-ICD) who suffered multiple complications. These included: ventricular oversensing causing inappropriate shocks and episodes of asystole; an insulation defect resulting in ineffective shocks as a consequence of a short circuit between the active can device and a defective high voltage cable; and device dysfunction requiring several hospitalizations and operative system revisions.
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Rainer Gradaus (1999) conducted a case report in Hardware-related complications in implantable cardioverter/defibrillators (ICD) (n=1). Dual chamber ICD (DDD-ICD) was evaluated on Hardware complications. A patient with a dual chamber ICD experienced multiple hardware complications, including ventricular oversensing, an insulation defect, and device dysfunction requiring operative revisions.
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