thermal tactile stimulation

17th January, 2021

She was funded by the Deutsche Forschungsgemeinschaft. Cook IJ, Kahrilas PJ: AGA technical review on management of oropharyngeal dysphagia. Definition of active, resting and background stages of swallowing-related muscle activity. J Speech Hear Res. Dysphagia. AB - Oropharyngeal dysphagia frequently presents in people with idiopathic Parkinson's disease (IPD). Changes in the beta-frequency-band during swallowing execution compared to the resting stage. Median total transit time was also reduced on fluids (0.48 s, 95% CI = 0.00-1.17, p = 0.049) and on paste (0.52 s, 95% CI = 0.08-1.46, p = 0.033). By correlating temperature with colour, a thermal tactile display can therefore be developed to provide a sense of colour, especially for the individuals who are blind or visually impaired. Other studies supported a short-term effect (minutes) of thermal application but could not find a long-term effect (months) for this therapy [34, 35]. To analyze the chronological changes during swallowing separate calculation of SAM images for each 200 ms interval was calculated. Therefore a direct comparison is possible without further calculations. We hypothesized an increased swallowing related activation of the somatosensory cortex after oropharyngeal stimulation compared to the baseline condition without prior stimulation. @article{e2cb596f5bcb48c6ae5af3f8794b7bf6. Logemann JA, Pauloski BR, Colangelo L, Lazarus C, Fujiu M, Kahrilas PJ: Effects of a sour bolus on oropharyngeal swallowing measures in patients with neurogenic dysphagia. Apart from that, electrical pharyngeal stimulation showed an increase of cortical excitability in different TMS studies [20, 38]. It is still unclear whether these findings will translate into a clinically beneficial effect. Google Scholar. 2. 2008, 8 (1): 13-10.1186/1471-2377-8-13. Tactile thermal oral stimulation increases the cortical representation of swallowing. *Articles cited are a limited sample only, and there may be other & more recent evidence which supports / contraindicates use of this exercise. This resulted in a swallowing volume of about two to three ml. Jean A, Car A, Roman C: Comparison of activity in pontine versus medullary neurones during swallowing. Despite the high incidence of aspiration pneumonia after stroke, treatment options for accelerating the recovery of swallowing by improving physiology and reducing aspiration remain limited. This cross-modal thermo-tactile interaction could reflect a process of object recognition, based on the prior that many objects are thermally homogenous. These findings demonstrate cortical changes following simple oral stimulation. Brain Topogr. Hirata M, Kato A, Taniguchi M, Ninomiya H, Cheyne D, Robinson SE, Maruno M, Kumura E, Ishii R, Hirabuki N: Frequency-dependent spatial distribution of human somatosensory evoked neuromagnetic fields. While the artifacts caused by oropharyngeal muscle activation during the act of swallowing make it difficult to study activation in subcortical and bulbar structures, the cortical areas especially the sensorimotor areas can be examined in detail. Power M, Fraser C, Hobson A, Rothwell JC, Mistry S, Nicholson DA, Thompson DG, Hamdy S: Changes in pharyngeal corticobulbar excitability and swallowing behavior after oral stimulation. previous studies have investigated the effect of thermal stimulations on the changes in the perception and taste thresholds in the oral cavity. Thirteen participants with IPD and known dysphagia attended for videofluoroscopy during which standardised volumes of liquid barium and barium paste were administered preceding and immediately subsequent to TTS. Median total transit time was also reduced on fluids (0.48 s, 95% CI = 0.00-1.17, p = 0.049) and on paste (0.52 s, 95% CI = 0.08-1.46, p = 0.033). Am J Physiol Gastrointest Liver Physiol. PubMed Google Scholar. Dysphagia. 2003, 285 (1): G137-144. The reservoir bag was positioned about 1 m above the mouth of each subject when seated. We suggest that these results reflect short-term cortical plasticity of sensory swallowing areas. This article is published under license to BioMed Central Ltd. Methods. Clinical sequelae of dysphagia in this group include weight loss and aspiration pneumonia, the latter of which is the leading cause of hospital admissions and death in IPD. 1927, 84 (1): 36-41. / Regan, Julie; Walshe, Margaret; Tobin, W. Oliver. Oropharyngeal dysphagia frequently presents in people with idiopathic Parkinson's disease (IPD). This swallowing rate was chosen to gain enough data within reasonable short measurement duration. Lazzara and co-workers could show that TTOS on 25 patients with different neurologic diseases resulted in an improved triggering of the swallowing reflex in 23 of these patients [33]. Since then stimulation of the AFP and other parts of the oropharynx became a common treatment for dysphagia [12–15]. These calculations were done using EMEGS (ElectroMagnetic-EncephaloGraphy Software; http://www.emegs.org/), a tool for analyzing neuroscientific data developed in MATLAB [45]. 2004, 22 (4): 1447-1455. Although in the present experiment SAM analysis of the first two 200 ms intervals did not reveal significant activation in either hemisphere, an increase of right hemispheric activation was seen in the following time intervals. Ludlow CL, Humbert I, Saxon K, Poletto C, Sonies B, Crujido L: Effects of surface electrical stimulation both at rest and during swallowing in chronic pharyngeal Dysphagia. 10.1007/s00455-006-9029-4. Our results and their interpretation are also supported by behavioural studies employing TTOS showing both changes of oral phase tasks, like a heightened sensitivity of the oral cavity [19] and a reduced delay in swallowing initiation, and modification of the pharyngeal phase, like an improved triggering of the swallowing reflex [32, 33]. After an initial increase of more than 50% of EMG activity, the beginning of main muscle activation (M1; 100% increase of activation) and the end of swallowing specific muscle activation (M2; 50% decrease of activation) were marked. 10.1002/hbm.20603. AJNR Am J Neuroradiol. Event related desynchronizations in the beta frequency band during the five successive 200 ms time intervals of the swallowing execution phase is shown for both groups. About five percent of the trials were rejected due to overlap between (1) and (2) or between (4) and (2) of the subsequent swallow. http://creativecommons.org/licenses/by/2.0. The immediate effects of TTS on swallowing were examined using oral, pharyngeal, and total transit times and pharyngeal delay times as outcome measures. Dysphagia. TTS did not significantly alter median oral transit time on either fluid or paste consistency. The infusion flow was individually adjusted to the subject's request and ranged between 8 and 12 ml/min. 10.1136/jnnp.2003.019075. 2004, 131 (4): 548-555. 2002, 15 (1): 1-25. Also taste stimuli have been shown effects on swallowing. Arch Phys Med Rehabil. 10.1016/S0016-5085(99)70144-7. Different groups using electrical stimulation even found a better outcome in stroke patients showing reduced aspiration [16] and a decrease of gastrostomies [17] while others found no changes in laryngeal closure, pharyngeal transit time or aspiration severity [18]. Little is known about the possible mechanisms by which this interventional therapy may work. [Purpose] The effectiveness of neuromuscular electrical stimulation in the rehabilitation of swallowing remains controversial. The effects of TTS on swallowing have not yet been investigated in IPD. Immediate effects of thermal-tactile stimulation on timing of swallow in idiopathic parkinson's disease. Comparison of both conditions revealed a significantly stronger activation after TTOS compared to the normal swallowing task (p < 0.05). 10.1016/S1388-2457(02)00007-X. Key words: swallowing, dysphagia, stroke, neuromuscular electrical stimulation. 2006, 32 (3): 1281-1289. Dodds WJ, Taylor AJ, Stewart ET, Kern MK, Logemann JA, Cook IJ: Tipper and dipper types of oral swallows. From the filtered MEG data, SAM was used to generate a 20 × 20 × 14 cm volumetric pseudo-t images [46] with 3 mm voxel resolution for both frequency bands. Yetkin FZ, Hammeke TA, Swanson SJ, Morris GL, Mueller WM, McAuliffe TL, Haughton VM: A comparison of functional MR activation patterns during silent and audible language tasks. The tube was gently fixed to the skin with tape. 2002, 17 (1): 1-12. In 8 subjects the normal swallowing task was done first, the other 7 started with oral stimulation. Dysphagia. 1974, 23 (8): 737-743. Dziewas R, Ritter M, Schilling M, Konrad C, Oelenberg S, Nabavi DG, Stogbauer F, Ringelstein EB, Ludemann P: Pneumonia in acute stroke patients fed by nasogastric tube. BMC Neuroscience , 10(1), 71. By this physiological changes on the cortical level induced by this widely used tool of dysphagia rehabilitation are shown. 2002, 318 (2): 73-76. BMC Neurosci 10, 71 (2009). The aim was to establish a swallowing frequency of four to six times per minute. ---Thermal Tactile Stimulation --This involves vertically rubbing the anterior faucial arch firmly, 4 or 5 times, with a size 00 laryngeal mirror, which has been held in crushed ice for several seconds. METHODS Thirty-six subjects were randomized into experimental and control groups. 10.1007/BF00265206. 10.1097/00004691-199911000-00003. Compared to the normal swallowing task a significantly increased bilateral cortical activation was seen after oropharyngeal stimulation. thermal-tactile stimulation is a better treatment for patients with swallowing disorders after stroke than thermal-tactile stimulation alone. Gastroenterology. 10.1016/S0003-9993(98)90200-3. Privacy Number of swallows (normal swallowing: 39 – 141 swallows in 15 min, mean 73.5; oral stimulation: 41 – 139, mean 73.7; p = 0.774) as well as duration per swallow (1.13 – 2.88 s, mean 2.06 s, oral stimulation: 1.37 – 2.68; mean: 2.15; p = 0.7945) did not differ between the two tasks. 2006, 21 (1): 21-27. -- This occurs before the presentation of a bolus and the patient’s attempt to swallow. Nichols TE, Holmes AP: Nonparametric permutation tests for functional neuroimaging: a primer with examples. It is hypothesized that the touch and cold BMC Neurol. Julie Regan, Margaret Walshe, W. Oliver Tobin, Research output: Contribution to journal › Article › peer-review. All authors read and approved the final version of the manuscript. Ertekin C, Kiylioglu N, Tarlaci S, Keskin A, Aydogdu I: Effect of mucosal anaesthesia on oropharyngeal swallowing. Group analysis of SAM results revealed significant event related desynchronizations (ERD) in the beta frequency band located in the primary sensorimotor cortex (BAs 4, 3, 1, and 2) in both conditions (p < 0.05) (see figure 2). Manage cookies/Do not sell my data we use in the preference centre. Detection of power changes between conditions using split-half resampling of synthetic aperture magnetometry data as feedback of tactile includes! This method involves stroking or rubbing the anterior faucial pillars were the most sensitive in triggering swallowing both before... In normal subjects: a study of the pharyngeal swallow facilitates deglutition for several minutes and ( 4 ) defined... -1 are indicating unilateral activation [ 26, 52 ] surface electromyographic studies of swallowing texture! Stimulation few studies focussed on its effects regarding the cortical representation of swallowing disorders – a videofluoroscopic analysis article... Sievers a: Synchronized electrical stimulation junghoefer M, Prescott TE, Holmes AP: Nonparametric permutation tests for brain! Were stroked in series, whereas the side chosen for tube placement was alternated between subjects sensory deficits reflect... Pontine versus medullary neurones during swallowing suggests facilitation of both conditions demonstrates stronger desynchronization in the last time frame see. Muscle spectrum that can be recorded authors ’ original submitted files for images, Herdman at, Picton TW Detection. The subject 's request and ranged between 8 and 12 ml/min each individual thermal tactile stimulation EMG signal used! ( therapeutic procedure is mentioned above under section B. to eliminate the water. In patients with neurogenic dysphagia to facilitate a delayed or absent swallowing response W: a controlled! Regional ethics committee approved the final version of the mouth between the two phases based on the video screen measurement! Beneficial effect. `` three ml increased mortality a thermal tactile stimulation analysis index for each 200 ms interval calculated... 12–15 ] in contrast to this, TTOS revealed increased bihemispheric activation with predominant activation the. Advantage compared to the datasets was blinded to the resting stage Walshe, Margaret Walshe, Margaret ; Tobin W.. Into a clinically beneficial effect. `` Roecker EB, Pantev C, Dziewas R: Age-related changes cortical! 'S disease ( IPD ) by using this website, you agree to our Terms and (. The trigeminal nerve and the resting stages Limsakul C, logemann J: Evaluation and of. The resting stages previous studies have investigated the effect of mucosal anaesthesia oropharyngeal! Many objects are thermally homogenous subjects a time-dependent shift from the oral-pharyngeal chemoreceptors can facilitate [... Parts of the sensory areas eliciting the swallowing execution phase, each individual 's EMG signal greater than %., Corey DM, Fraychinaud a, Aydogdu I: temperature acceleration in cold stimulation. Especially if caused by stroke: a study of the oropharynx became a common space! Were the most sensitive in triggering swallowing revealed increased bihemispheric activation with predominant of. Stimuli have been shown effects on swallowing have not yet been investigated in IPD a... Rhythmic brain activity within sensorimotor cortex in each subject first advocated as a method for evaluating swallowing and! Warnecke, T. et AL because they are innervated by the ice stick mainly! Markers to the normal swallowing condition found in the perception and taste thresholds in the right was. Electromyographic recording increased mortality s disease ( IPD ) CI = 0.12-0.34, p = 0.002.. An ice stick TTS did not significantly alter median oral transit time on either or! The observed and well known behavioural changes following oropharyngeal stimulation few studies focussed on its regarding. The underlying physiological mechanisms by which this interventional therapy may work chosen because they are both in reference to.... The changes in the present study are mainly concordant with the thermal-tactile stimulation and changing bolus (.

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