Submental transcutaneous electrical stimulation can impact the timing of laryngeal vestibule closure

Submental transcutaneous electrical stimulation can impact the timing of laryngeal vestibule closure

Background Laryngeal vestibule closure (LVC) is one of the critical airway protection mechanisms during swallowing. LVC timing impairments during swallowing are among the common causes of airway invasion in patients with dysphagia. Objectives To understand whether using submental transcutaneous elec...

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Bibliographic Details
Published in:Journal of oral rehabilitation Vol. 49; no. 8; pp. 817 - 822
Main Authors: Barikroo, Ali, McLean, Mitchell T.
Format: Journal Article
Language:English
Published: England Wiley Subscription Services, Inc 01-08-2022
Subjects:
airway protection
Clinical trials
duration
Dysphagia
Electrical stimuli
Immunological tolerance
laryngeal vestibule closure
reaction time
Reaction time task
Respiratory tract
Swallowing
transcutaneous electrical stimulation
duration
reaction time
swallowing
laryngeal vestibule closure
transcutaneous electrical stimulation
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Summary:Background Laryngeal vestibule closure (LVC) is one of the critical airway protection mechanisms during swallowing. LVC timing impairments during swallowing are among the common causes of airway invasion in patients with dysphagia. Objectives To understand whether using submental transcutaneous electrical stimulation (TES) with varying pulse durations can impact the LVC reaction time (LVCrt) and LVC duration (LVCd) measures in healthy adults. Methods Twenty‐six healthy adults underwent three TES conditions while receiving three trials of 10 ml pureed: no TES, TES with short pulse duration (300 μs) and TES with long pulse durations(700 μs). Two pairs of electrodes were placed diagonally on the submental area. For each active TES condition, the stimulation was increased up to the participant's self‐identified maximum tolerance. Each swallow trial was recorded using videofluoroscopic swallowing study. All data were extracted and analysed offline using VideoPad Video Editor program. Results Submental TES reduced LVCrt during swallowing [F (2, 46) = 7.234, p < .007, ηp2 = .239] but had no significant impact on LVCd [F (2, 50) = .1.118, p < .335, ηp2 = .043]. Furthermore, pulse duration had no distinguished impact on any LVC timing measures. Conclusion Transcutaneous electrical stimulation may benefit patients with dysphagia who suffer from delayed LVC during swallowing. Future studies should seek whether the same physiologic effect can be observed in patients with dysphagia.
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ISSN:0305-182X
1365-2842
DOI:10.1111/joor.13342