Key result
Lead revision resolves recurrent inappropriate ICD shocks caused by trauma-induced lead fracture.
Why the study?
Lead-related complications, including lead fracture causing inappropriate ICD shocks, remain an important cause of device malfunction affecting patient morbidity.
Case Report (n=1)
Blunt chest trauma can result in ICD lead fracture and subsequent inappropriate shocks, which can be effectively managed with prompt device interrogation and lead revision.
Answers are grounded in this paper and cite their sources.
Post-trauma ICD interrogation warranted in patients with shocks; case report leaves open need for prospective validation.
Implantable cardioverter-defibrillators (ICDs) are effective in preventing sudden cardiac death; however, lead-related complications remain an important cause of device malfunction. Lead fracture may result in oversensing and inappropriate shocks, significantly affecting patient morbidity. We report a 48-year-old man with ischemic cardiomyopathy and a single-chamber ICD who presented with multiple inappropriate shocks following a motor vehicle accident. Device interrogation demonstrated high-frequency non-physiological noise, abrupt reduction in lead impedance, and premature battery depletion. Fluoroscopy confirmed ventricular lead fracture. The fractured lead was abandoned, and a new ventricular lead was successfully implanted. Inappropriate shocks resolved completely following lead revision. Trauma-related lead fracture should be considered in patients presenting with inappropriate ICD therapies after blunt chest trauma. Prompt device interrogation and lead revision are essential for appropriate management.
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Singh et al. (2026) conducted a case report in Ischemic cardiomyopathy with single-chamber ICD (n=1). Lead revision was evaluated on Resolution of inappropriate shocks. Lead revision completely resolved recurrent inappropriate ICD shocks caused by a trauma-induced ventricular lead fracture following a motor vehicle accident.
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