Key result
ICDs with a nonthoracotomy lead system failed to reliably redetect ventricular fibrillation, with electrogram amplitude dropping to 2.2 mV and redetection failing in 2 of 5 patients.
Why the study?
Does shock delivery from an implantable cardioverter-defibrillator with a nonthoracotomy lead system impair the redetection of ventricular fibrillation?
Population
5 patients undergoing implantation of a cardioverter-defibrillator in combination with a new nonthoracotomy…
Design
Case_series
Follow-up
predischarge
Authors
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May compromise post-shock VF sensing in ICDs; leaves open optimal detection settings for nonthoracotomy leads.
Observational (n=5)
Does shock delivery from an implantable cardioverter-defibrillator with a nonthoracotomy lead system impair the redetection of ventricular fibrillation?
Shock delivery from ICDs with nonthoracotomy leads can significantly decrease endocardial electrogram amplitude, potentially causing a failure to redetect ventricular fibrillation and risking sudden cardiac death.
Jung et al. (1992) conducted an observational in Ventricular fibrillation (n=5). Implantable cardioverter-defibrillator with a nonthoracotomy lead system was evaluated on Amplitude of endocardial electrograms and redetection of ventricular fibrillation. ICDs with a nonthoracotomy lead system failed to reliably redetect ventricular fibrillation, with electrogram amplitude dropping to 2.2 mV and redetection failing in 2 of 5 patients.
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