Data was collected retrospectively from epilepsy patients with vns aspiresr implanted between june 2014 and june 2017 by a single surgeon in order to compare the efficacy of the aspiresr to preceding vns battery models for battery replacements and new implants.This article reports several events, including vocal cord paresis and suspected lead migration, and high impedance.The product problem event of high impedance attributed to the lead in the article is captured in mfr.Report #1644487-2018-00974.This report captures the adverse events in the article that are attributed to the lead.It was reported in the study that there were four cases of transient vocal cord paresis.All cases were resolved within 4-6 months.One case of lead migration was suspected after a severe convulsive seizure soon after implant insertion and revision surgery was performed.No further relevant information has been received to date.
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