Enhanced salivary secretion by interferential current stimulation in patients with dry mouth: a pilot study

Hirabayashi, Yoko; Sugahara, Kazuma; Sano, Saori; Sakuramoto, Ayumi; Kishimoto, Hiroyuki; Oku, Yoshitaka

doi:10.1016/j.oooo.2016.01.017

Cited by 21 publications

(16 citation statements)

References 32 publications

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“…A portable device (Gentle Stim ® ; J Craft, Osaka, Japan) that can generate an IFC with a beat frequency of 50 Hz was used to carry out TESS. A prototype of the device was used in previous studies, 12 , 13 , 15 without any detectable adverse effects. This device was built to stimulate the nerves inside the neck through placement of two pairs of electrodes of different frequencies (2,000 and 2,050 Hz) across the neck, as shown in Figure 2 .…”

Section: Methodsmentioning

confidence: 99%

“… 14 Therefore, IFC-TESS is expected to stimulate nerves in the deep layers of the pharynx and larynx, without being uncomfortable. Although IFC-TESS enhances saliva production, 15 shortens pharyngeal latency, 13 and increases the swallowing frequency in healthy men, 12 randomized controlled trials involving IFC-TESS have not been conducted in patients with dysphagia.…”

Section: Introductionmentioning

confidence: 99%

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Interferential current sensory stimulation, through the neck skin, improves airway defense and oral nutrition intake in patients with dysphagia: a double-blind randomized controlled trial

Maeda¹,

Koga²,

Akagi³

2017

CIA

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BackgroundNeuromuscular electrical stimulation with muscle contraction, administered through the skin of the neck, improves a patient’s swallowing ability. However, the beneficial effects of transcutaneous electrical sensory stimulation (TESS), without muscle contraction, are controversial. We investigated the effect of TESS, using interferential current, in patients undergoing dysphagia rehabilitation.MethodsThis double-blind, randomized controlled trial involved 43 patients who were prescribed in-hospital dysphagia rehabilitation for ≥3 weeks. Patients were randomly assigned to the sensory stimulation (SS) or sham groups; all received usual rehabilitative care plus 2 weeks of SS or sham intervention. Outcome measures included cough latency times against a 1% citric acid mist, functional oral intake scale (FOIS) scores, and oral nutritional intake – each determined after the second and third week following treatment initiation.ResultsMean patient age was 84.3±7.5 years; 58% were women. The SS and sham groups had similar baseline characteristics. Changes in cough latency time at 2 weeks (−14.1±14.0 vs −5.2±14.2 s, p=0.047) and oral nutrition intake at 3 weeks (437±575 vs 138±315 kcal/day, p=0.042) improved more in the SS group than in the sham group. Changes in cough frequency and FOIS scores indicated better outcomes in the SS group, based on substantial effect sizes.ConclusionTESS, using interferential current through the neck, improved airway defense and nutrition in patients suffering from dysphagia. Further large-scale studies are needed to confirm the technique’s effect on swallowing ability.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Interferential current sensory stimulation, through the neck skin, improves airway defense and oral nutrition intake in patients with dysphagia: a double-blind randomized controlled trial

Maeda¹,

Koga²,

Akagi³

2017

CIA

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“…Hasegawa et al ( 27 ) reported that salivation was promoted by application of interferential current stimulation (IFCS) to the submandibular and sublingual gland regions in patients with dry mouth. IFCS uses an electric current with two different frequencies of middle-frequency range over 2,000 Hz.…”

Section: Discussionmentioning

confidence: 99%

Effects of Neuromuscular Electrical Stimulation (NMES) on salivary flow in healthy adults

et al. 2020

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Background Neuromuscular electrical stimulation (NMES) is a method used for enhancing suprahyoid muscle activity and is widely applied as a treatment for dysphagia. Patients often complain of saliva pooling in the pharynx during NMES. Therefore, the purpose of this study was to investigate the changes in salivary flow during NMES. Material and Methods Twenty healthy adults participated in this study. Electrical stimulation was applied at constant strength for 60 minutes to the suprahyoid muscles using VitalStim®. Participants were examined under three conditions of NMES: sensory threshold plus 75% of the difference between sensory and pain thresholds (75% Stim), SensoryStim, and Sham. Saliva collections, using a 10-min spitting method, were performed seven times: before stimulation (S1), during stimulation (S2-S6), and 5 min after stimulation ended (S7). Results Significant differences were observed in saliva flow between S1 and S7, as well as S2 and S7 in 75% Stim. Conclusions This study indicates that an increase in saliva flow was promoted after NMES. Therefore, NMES may have effects on patients with xerostomia. Key words: Neuromuscular electrical stimulation, suprahyoid muscle, sensory threshold, pain threshold, saliva flow.

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“…(This figure was courteously provided by its author Prof. Ernst Brodin, by the Tidende Journal which the figure published and by illustrator Sole Lätti). in different setups in an effort to therapeutically influence pain (Angelakis et al 2013;Bae and Lee 2014;Elnaggar and Elshafey 2016;Gundlach et al 2016;Hasegawa at al. 2016;Peng and Tang 2016;Albornoz-Cabello et al 2017;Franco et al 2017;Ladi-Seyedian et al 2017).…”

Section: Deep Brain Structures In Pain Treatmentmentioning

confidence: 99%

Brain stimulation methods for pain treatment

Kvašňák

Rokyta²

2018

gpb

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Treatment of pain is one of the most important aims of medicine. Over the past several decades, invasive, semi-invasive and non-invasive brain stimulation methods have been tested and implemented for modulation of the pain. In this review, we bring an overview of those methods including stimulation of both deep brain structures utilizing invasive and semi-invasive techniques and the brain cortex stimulated by non-invasive transcranial magnetic and electrical techniques. Another potentially beneficial method that could modulate pain by stimulating the deep brain with interferential transcranial alternating current is discussed as well.

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Enhanced salivary secretion by interferential current stimulation in patients with dry mouth: a pilot study

Cited by 21 publications

References 32 publications

Interferential current sensory stimulation, through the neck skin, improves airway defense and oral nutrition intake in patients with dysphagia: a double-blind randomized controlled trial

Interferential current sensory stimulation, through the neck skin, improves airway defense and oral nutrition intake in patients with dysphagia: a double-blind randomized controlled trial

Effects of Neuromuscular Electrical Stimulation (NMES) on salivary flow in healthy adults

Brain stimulation methods for pain treatment

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