Electrical Stimulation and Swallowing: How Much Do We Know?

Humbert, Ianessa A.; Michou, Emilia; Macrae, Phoebe; Crujido, Lisa R.

doi:10.1055/s-0032-1320040

Cited by 38 publications

(39 citation statements)

References 32 publications

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“…Transcutaneous electrical stimulation (TES) intends to enhance movement by increasing muscle contraction in stimulated muscles [36]. While ample evidence indicates that TES can enhance contraction in different muscle groups, only scant information details the direct impact of TES on muscles of swallowing.…”

Section: Transcutaneous Electrical Stimulation (Tes)mentioning

confidence: 99%

Adoption into clinical practice of two therapies to manage swallowing disorders

Crary¹,

Carnaby²

2014

Current Opinion in Otolaryngology & Head and Neck Surgery

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Purpose of review This article reviews recent literature depicting a shift in dysphagia rehabilitation in adults. Distinguishing rehabilitation from compensation in dysphagia management, a review of basic exercise principles is followed by description of recent publications depicting exercise based therapies. Subsequently, transcutaneous electrical stimulation is reviewed as it may contribute to exercise based dysphagia rehabilitation in adults. Recent findings Surveys have documented extensive variability in the clinical application of dysphagia therapy techniques. Despite this variability, two trends are emerging in dysphagia rehabilitation research: 1- documentation of physiologic plus functional changes within the swallowing mechanism subsequent to therapy; and 2- prophylactic exercise based therapies. In addition, extensive efforts have emerged describing the potential application of transcutaneous electrical stimulation in dysphagia rehabilitation. Though results of these efforts are conflicted, transcutaneous electrical stimulation may serve a useful role as an adjunct to well-developed exercise based rehabilitation for dysphagia. Summary The focus of dysphagia rehabilitation in adults is changing. Current efforts indicate that exercise based therapies should incorporate multiple principles of exercise physiology and document physiologic change within the impaired swallowing mechanism. Transcutaneous electrical stimulation may function as an adjunctive modality; however, current practices should be evaluated to develop additional parameters of stimulation that are focused toward specific dysphagia impairments.

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Section: Transcutaneous Electrical Stimulation (Tes)mentioning

confidence: 99%

Adoption into clinical practice of two therapies to manage swallowing disorders

Crary¹,

Carnaby²

2014

Current Opinion in Otolaryngology & Head and Neck Surgery

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“…ES of hyoid muscles in post-stroke patients with dysphagia leads to improved elevation of the larynx and better closure of the airways and therefore it prevents food aspiration 9,10 . The most clinically useful approach is to stimulate the suprahyoid muscles by means of TENS (transcutaneous electrical nerve stimulation) currents with a frequency of 60 Hz, a pulse length of 300 ms and intensity of the motor threshold [9][10][11][12] .…”

Section: Introductionmentioning

confidence: 99%

Electrical stimulation of hyoid muscles in post-stroke dysphagia

Konečný¹,

Elfmark²

2018

BIOMED PAP

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Aims. The purpose of this study was to evaluate swallowing changes in post-stroke patients with dysphagia after four weeks of suprahyoid muscles electrical stimulation. Methods. This was a prospective randomized study of early stage stroke patients with dysphagia. Electrical stimulation of suprahyoid muscles was given to a group of 54 patients (26 men, average age 70 years) for 20 minutes a day, 5 days a week. Standard orofacial rehabilitation without electrical stimulation was carried out on a control group of 54 patients (31 men, average age 69 years). Swallowing was evaluated at the beginning of the study and at the end, by videofluoroscopy -measuring the time for oral and pharyngeal phases. Results. The difference in duration of oral transit time (OTT) after the therapy between the study group (average: 0.55 ± 0.01) and the control group (average: 0.29 ± 0.03) was statistically significant (P=0.01). Difference in duration of the pharyngeal transit time (PTT) after the therapy between the study group (average: 0.37 ± 0.02) and control group (average: 0.15 ± 0.02) was also statistically significant (P=0.009). Conclusion. Electrical stimulation of suprahyoid muscles significantly reduced the duration of the oral and pharyngeal phases: in the post-stroke patients with dysphagia used in this study. The result is improved swallowing. This is a recently recommended approach and your study confirms its efficacy.

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“…However, it is unknown whether other types of SES perturbation would cause different EBL outcomes on swallowing hyolaryngeal elevation. This has relevance to dysphagia rehabilitation because neck SES is used to treat dysphagia using various stimulation protocols with conflicting reports about improvements in swallowing ability (Clark, Lazarus, Arvedson, Schooling, & Frymark, 2009;Huckabee & Doeltgen, 2007;Humbert, Michou, MacRae, & Crujido, 2012;Poorjavad, Talebian Moghadam, Nakhostin Ansari, & Daemi, 2014;Tan, Liu, Li, Liu, & Chen, 2013).…”

mentioning

confidence: 99%

Surface Electrical Stimulation Perturbation Context Determines the Presence of Error Reduction in Swallowing Hyolaryngeal Kinematics

Humbert

Christopherson

Lokhande

2015

Am J Speech Lang Pathol

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Purpose: Error-based learning (EBL) involves gradually reducing movement errors caused by a perturbation. When the perturbation has been unexpectedly removed, exaggerated movements occur in the opposite direction of a perturbation effect, known as aftereffects. Our goal was to determine whether the perturbation type impacts error reduction or aftereffects in swallowing hyolaryngeal kinematics. Method: We perturbed peak hyolaryngeal elevation during swallowing in 16 healthy adults with surface electrical stimulation (SES) in 2 different ways during videofluoroscopy: intermittent SES (I-SES) was applied only during swallowing, and continuous SES (C-SES) was applied during swallowing and during interswallow intervals. In C-SES and I-SES, the onset and offset of the perturbation were unmasked. Results: Only the C-SES perturbation caused error reduction (gradually increasing peak elevation). Aftereffects were absent in both perturbations, unlike findings from our previous study with masked perturbation. Furthermore, the duration of laryngeal vestibule closure (dLVC) increased during the I-SES perturbation but was unchanged during C-SES perturbation. Conclusion: EBL of swallowing airway protection events was strongly influenced by the context of the perturbation. These findings also elucidate how the relationship among critical swallowing airway protection events (hyoid peak, laryngeal peak, and dLVC) can be modified during EBL.

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Electrical Stimulation and Swallowing: How Much Do We Know?

Cited by 38 publications

References 32 publications

Adoption into clinical practice of two therapies to manage swallowing disorders

Adoption into clinical practice of two therapies to manage swallowing disorders

Electrical stimulation of hyoid muscles in post-stroke dysphagia

Surface Electrical Stimulation Perturbation Context Determines the Presence of Error Reduction in Swallowing Hyolaryngeal Kinematics

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