Voice and swallowing outcomes following hypoglossal nerve stimulation for obstructive sleep apnea.

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Voice and swallowing outcomes following hypoglossal nerve stimulation for obstructive sleep apnea.

Am J Otolaryngol. 2017 Dec 15;:

Authors: Bowen AJ, Nowacki AS, Kominsky AH, Trask DK, Benninger MS, Bryson PC

Abstract
OBJECTIVE: Hypoglossal nerve stimulation is an effective treatment for a subset of patients with Obstructive Sleep Apnea (OSA). Although multiple clinical trials demonstrate its efficacy, no previous literature explores the potential impact the stimulator has on swallowing and voice. Our primary objective is to evaluate patient reported post-operative changes in voice or swallowing following hypoglossal nerve stimulator placement.
STUDY DESIGN: Prospective cohort study.
SETTING: Tertiary care hospital.
SUBJECT AND METHODS: Patients scheduled to receive a hypoglossal stimulator were enrolled. Participants completed baseline Voice Handicap Index-10 (VHI-10) and Eating Assessment Tool-10 (EAT-10) questionnaires preoperatively and again at 1week, 3months, and 6months post-operatively following placement of a hypoglossal nerve stimulator.
RESULTS: 9 males and 5 females completed the study. The mean pre-operative VHI-10 and EAT-10 score was 3 and 0.8 respectively. Using linear mixed models, a clinically and statistically significant increase in the mean EAT-10 score was observed post-operatively at 1week (p=0.007), which was not observed at the time points the stimulator was active. A clinically and statistically significant decrease in VHI-10 score was observed following 2months of active stimulator use (p=0.02), which was not observed at any other time point.
CONCLUSION: The implantation and use of the hypoglossal nerve stimulator over 5months did not demonstrate any sustained, patient reported changes in voice handicap and swallowing function. While larger studies are warranted, our findings can be used to provide further informed consent for hypoglossal nerve stimulator implantation.

PMID: 29277289 [PubMed - as supplied by publisher]

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