Key result
High-voltage ICD discharges generated mean body surface potentials of 12.5-63.8 V and currents of 8.2-120.7 mA, which pose only a minimal chance of triggering a tachyarrhythmia in a bystander.
Why the study?
What are the body surface potentials and currents generated during high-voltage discharge of an ICD, and do they pose a risk to bystanders?
Population
23 patients with a transvenous active can implantable cardioverter defibrillator (ICD) system
Design
Case_series
Authors
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Minimal bystander risk from ICD shocks supports family presence; leaves open confirmation in larger cohorts.
Observational (n=23)
What are the body surface potentials and currents generated during high-voltage discharge of an ICD, and do they pose a risk to bystanders?
During high-output ICD shocks, body surface potentials are generated that may cause a single extra beat in a bystander but are unlikely to induce ventricular fibrillation.
Peters et al. (1998) conducted an observational in Patients with a transvenous active can ICD system (n=23). High-voltage discharge of implantable cardioverter defibrillator was evaluated on Body surface potentials and current through an external resistance during ICD discharge. High-voltage ICD discharges generated mean body surface potentials of 12.5-63.8 V and currents of 8.2-120.7 mA, which pose only a minimal chance of triggering a tachyarrhythmia in a bystander.
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