2018
DOI: 10.1007/s00221-018-5325-0
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Supportive effect of interferential current stimulation on susceptibility of swallowing in guinea pigs

Abstract: Sensory-motor control of the pharyngeal swallow requires sensory afferent inputs from the pharynx and larynx evoked by introducing bolus into the pharynx. Patients with reduced sensitivity of the pharynx and larynx are likely to have a swallowing impairment, such as pre-swallow aspiration due to delayed swallow triggering. Interferential current stimulation applied to the neck is thought to improve the swallowing function of dysphagic patients, although the mechanism underlying the facilitatory effect of such … Show more

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Cited by 23 publications
(18 citation statements)
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“…[3][4][5][6][7] However, as TENS cannot stimulate structures situated deep in the body, an interferential current has been developed to overcome this disadvantage; 8 interference between electricity of two different frequencies generates a new interferential current inside the human body that can affect deeply situated sensory nerves. 9 The use of interferential currents to facilitate swallowing training has yielded the following findings concerning interferential currents: (i) in decerebrate and paralyzed animals, the reduction of the latency time in the elicitation of the swallowing reflex and the excitation of swallowingrelated neurons in the brain stem; 10 (ii) in healthy human volunteers, the reduction of the swallowing threshold; 11,12 and (iii) in patients with chronic, pharyngeal-stage dysphagia and mini-mental state exam (MMSE) scores of 21 or more, the improvement of the swallowing reflex. 13,14 Furthermore, interferential current transcutaneous electrical sensory stimulation (IFC-TESS) improved cough latency times and increased oral calorie intake in patients with dysphagia and dementia in an acute or recovery medical care facility.…”
Section: Introductionmentioning
confidence: 99%
“…[3][4][5][6][7] However, as TENS cannot stimulate structures situated deep in the body, an interferential current has been developed to overcome this disadvantage; 8 interference between electricity of two different frequencies generates a new interferential current inside the human body that can affect deeply situated sensory nerves. 9 The use of interferential currents to facilitate swallowing training has yielded the following findings concerning interferential currents: (i) in decerebrate and paralyzed animals, the reduction of the latency time in the elicitation of the swallowing reflex and the excitation of swallowingrelated neurons in the brain stem; 10 (ii) in healthy human volunteers, the reduction of the swallowing threshold; 11,12 and (iii) in patients with chronic, pharyngeal-stage dysphagia and mini-mental state exam (MMSE) scores of 21 or more, the improvement of the swallowing reflex. 13,14 Furthermore, interferential current transcutaneous electrical sensory stimulation (IFC-TESS) improved cough latency times and increased oral calorie intake in patients with dysphagia and dementia in an acute or recovery medical care facility.…”
Section: Introductionmentioning
confidence: 99%
“…Thus, in accordance with previous publications our study supports the notion that the neuronal networks of swallowing interneurons are widely distributed in the NTS and the RF, which in turn, directly or indirectly control the oropharyngeal motor pattern of swallowing. 1,3,25,26,40…”
Section: Changes In the Motor Patterns Of Swallowing Following Unilateral Inhibition Of The Dsgmentioning
confidence: 99%
“…In basic animal research with guinea pigs, IFC-TESS shortened the swallow delay time, suggesting that it could enhance the pharyngolaryngeal sensory afferent pathway, subserving excitatory inputs to the swallowing pattern generator, and hence facilitate the swallowing reflex. 6) In clinical studies, IFC-TESS was reportedly effective in dysphagic patients with dementia, 7) aspiration pneumonia, and other conditions. 8) However, its efficacy in COPD patients is unknown.…”
Section: Introductionmentioning
confidence: 99%