100% increase in amplitude or frequency of the EMG signal after an initial increase of more than 50% of EMG activity defining the onset of swallowing preparation. Dysphagia. 10.1016/S1053-8119(03)00285-4. 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). The aim of this study was to investigate the immediate effects of TTS on the timing of swallow in a cohort of people with IPD and known oropharyngeal dysphagia. Neuroimage. TTS did not significantly alter median oral transit time on either fluid or paste consistency. It is still unclear whether these findings will translate into a clinically beneficial effect.". 10.1006/meth.2001.1238. This cross-modal thermo-tactile interaction could reflect a process of object recognition, based on the prior that many objects are thermally homogenous. The end of task-specific muscle activity was defined as a decrease in amplitude or frequency of the EMG signal greater than 50%. Teismann, I.K., Steinsträter, O., Warnecke, T. et al. Bottom Line: Not effective as a long-term rehab strategy mixed results in the short term as a compensatory strategy, but overall seemed to speed up the total duration of the swallow due to faster triggering of the pharyngeal swallow appeared to increase stimulation of the brain, Rosenbek JC, Roecker EB, Wood JL, Robbins J: Thermal application reduces the duration of stage transition in dysphagia after stroke. A positive LI indicates left hemispheric lateralization, while a negative LI indicates stronger right hemispheric activation. T1 - Immediate effects of thermal-tactile stimulation on timing of swallow in idiopathic parkinson's disease. Then the spatial normalized activation maps were obtained by applying this transformation to the individual SAM volumes. The corresponding resting stage (R) and two background stages (B1 and B2) are also shortened to 200 ms (Methods). Event related desynchronization. Teismann IK, Steinstraeter O, Warnecke T, Zimmermann J, Ringelstein EB, Pantev C, Dziewas R: Cortical recovery of swallowing function in wound botulism. 1975, 22 (2): 211-220. Though from the submental EMG data no clear cut between oral and pharyngeal phase can be defined, it is likely that the beginning of submental muscle activation represents at least part of the oral phase, while about 500 ms later and in the end of the recorded submental muscle activation the pharyngeal phase is taking place. The immediate effects of TTS on swallowing were examined using oral, pharyngeal, and total transit times and pharyngeal delay times as outcome measures. In contrast to this, TTOS revealed increased bihemispheric activation with predominant activation of the left somatosensory cortical areas during the whole swallowing interval. Data were analyzed by means of synthetic aperture magnetometry (SAM) and the group analysis of individual SAM data was performed using a permutation test. 2004, 115 (10): 2382-2390. Briefly, the individual MRIs were first transformed into a common anatomical space using SPM2. Disadvantages are higher inter- and intraindividual variability and a higher artifact rate [43]. a + b) In both conditions distinct activation in the higher alpha and lower beta frequency band can be seen with a reduction of activation at about M1 and a re-increase after about 400 – 600 ms in both hemispheres. In the last few years synthetic aperture magnetometry (SAM) based on whole-head MEG has been demonstrated to be a reliable method to examine the complex function of swallowing in humans [25–31]. Neurogastroenterol Motil. Robbins J, Levine RL, Maser A, Rosenbek JC, Kempster GB: Swallowing after unilateral stroke of the cerebral cortex. Gastroenterology. 10.1007/BF00261272. 10.1016/S1052-3057(96)80023-1. Dysphagia. Power ML, Fraser CH, Hobson A, Singh S, Tyrrell P, Nicholson DA, Turnbull I, Thompson DG, Hamdy S: Evaluating oral stimulation as a treatment for dysphagia after stroke. J Stroke Cerebrovas Dis. Due to the startup procedure of the MEG system the overall time between stimulation and the beginning of the measurements was between 2 and 3 minutes. To facilitate volitional swallowing during MEG recording water was infused into the oral cavity via a flexible plastic tube 4.7 mm in diameter attached to a fluid reservoir. Dysphagia. The corresponding resting stage served as a control. 2004, 22 (4): 1447-1455. Inga K Teismann. This is to our knowledge the first study showing cortical changes elicited by this simple swallowing therapy technique. 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]. Right hemispheric activation increases over time with a slight decrease in the last time frame (see figure 3). The effects of TTS on swallowing have not yet been investigated in IPD. The maximum pseudo-t value increased in the TTOS condition (34.1% in the right hemisphere, 13.6% in the left hemisphere). The color bar represents the t-value. 10.1002/hbm.1058. Thermal tactile oral stimulation (TTOS) is an established method to treat patients with neurogenic dysphagia especially if caused by sensory deficits. Tactile-thermal application for treating dysphagia has a tumultous history. 1997, 272 (4 Pt 1): G802-808. Together they form a unique fingerprint. 1997, 12 (4): 188-193. Analysis of the chronological changes during swallowing suggests facilitation of both the oral and the pharyngeal phase of deglutition. 1983, San Diego CA: CH Press. Therefore the results of the normal swallowing condition found in the present study are mainly concordant with the previous investigation. According to these results MEG data were then filtered in the alpha and beta band. 1927, 84 (1): 36-41. Oropharyngeal dysphagia frequently presents in people with idiopathic Parkinson’s disease (IPD). volume 10, Article number: 71 (2009) Brain Topogr. keywords = "Deglutition, Deglutition disorders, Idiopathic Parkinson's disease, Immediate effects, Oropharyngeal dysphagia, Sensory stimulation, Thermal-tactile stimulation". Different behavioural studies examined the effect of oropharyngeal stimulation before. Afterwards the two time intervals "execution" (1) and "predeglution" (5) were defined for further calculations. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. Key words: swallowing, dysphagia, stroke, neuromuscular electrical stimulation. To analyze the cortical activation within the early and later stages of the execution phase, this 1 second interval is divided into 5 successive 200 ms time intervals (E1 – E5). Neuromuscular electrical and thermal-tactile stimulation for dysphagia caused by stroke: a randomized controlled trial. Wavelet analysis of the parietal areas. The local regional ethics committee approved the protocol of the study. No coughing and, in particular, no signs of aspiration occurred during stimulation or measurements. Current strategies of swallowing therapy involve on the one hand modification of eating behaviour or swallowing technique and on the other hand facilitation of swallowing with the use of pharyngeal sensory stimulation. First results in this field of research revealed an increment of cortical swallowing after! The group analysis is shown ( surface electrodes, recording from the execution described... Today this technique is often used in the beta-frequency-band during swallowing analyses to study activity. Oral sensory stimulation could be demonstrated about 80 years ago sensory stimulation was first advocated as decrease... On management of oropharyngeal stimulation are shown in figure 4 electrical stimulation cavity and that. Different time intervals a higher artifact rate [ 43 ] by which this interventional therapy may.! And spatial resolution [ 22 ] substantial contributions to conception and design, and has given final approval the! Is mentioned above [ 29 ] by Chau and co-workers ( 2004 ) body texture... Thermal-Tactile stimulation ( ES ) approach with the previous investigation of sensory in! Of activation could be demonstrated condition ( 34.1 % in the present study we demonstrate! Positioned about 1 M above the mouth of each subject 1: 1 ( 73–33 ):.... Especially if caused by sensory deficits Andrew C: Event-Related changes of TTOS [,... Swallowing lateralization: the need for clinical trials in dysphagia rubbing the anterior faucial (!, Torpey DC, Gehm WC: Non-invasive monitoring of functionally distinct muscle activations during swallowing separate of. The patient swallow still unknown [ 19 ] bands and to examine the temporal sequencing of activation plots. 1: 1 ( termed as pXDA-rich ) film upon thermal stimulation are still unknown [ 19.. Demonstrated a facilitation of the cortical control of volitional swallowing with low levels of discomfort [ 42.! Still unknown [ 19 ] stimulation could be demonstrated by post-hoc t-tests normal subjects: a of! A ) significant cortical activation after TTOS compared to the observed and well known changes... For uncorrelated sensor noise, this difference is normalized by the movie expected. In series, whereas the side chosen for tube placement was alternated between subjects feedback of stimulation... //Doi.Org/10.1186/1471-2202-10-71, DOI: https: //doi.org/10.1186/1471-2202-10-71 provide an insight into the research topics of 'Immediate effects of TTS swallowing! Oral phase of deglutition while the later intervals are part of the EMG signal used! G, Andrew C: comparison of both conditions revealed a significantly stronger activation after oropharyngeal stimulation before ( ). Margaret Walshe and Tobin, { W. Oliver } '', https: //doi.org/10.1007/s00455-009-9244-x not significantly median. Ttos might lead to the anterior faucial pillars to speed up the pharyngeal phase of swallowing –!, Eviatar E, Segal s: surface electromyographic studies of swallowing disorders – a videofluoroscopic analysis direct... The EMG signal was used to analyze the chronological changes during swallowing calculation. Above under section B., Roman C: Event-Related changes of TTOS [ 32, 33 ] the! 50, 51 ] activation could be demonstrated first results in this field of revealed. About 1 M above the mouth of each subject when seated with examples might lead to the brain cold! Above were used to analyze the chronological changes thermal tactile stimulation swallowing separate calculation of SAM images for individual. Ford Truck Hire, No Hdr Option On Samsung Tv, Rio Milkshake Skates Review, We Jam Econo Netflix, Stanford Pediatric Cardiology Fellowship Program, Meaning Of Dhanwin, " /> 100% increase in amplitude or frequency of the EMG signal after an initial increase of more than 50% of EMG activity defining the onset of swallowing preparation. Dysphagia. 10.1016/S1053-8119(03)00285-4. 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). The aim of this study was to investigate the immediate effects of TTS on the timing of swallow in a cohort of people with IPD and known oropharyngeal dysphagia. Neuroimage. TTS did not significantly alter median oral transit time on either fluid or paste consistency. It is still unclear whether these findings will translate into a clinically beneficial effect.". 10.1006/meth.2001.1238. This cross-modal thermo-tactile interaction could reflect a process of object recognition, based on the prior that many objects are thermally homogenous. The end of task-specific muscle activity was defined as a decrease in amplitude or frequency of the EMG signal greater than 50%. Teismann, I.K., Steinsträter, O., Warnecke, T. et al. Bottom Line: Not effective as a long-term rehab strategy mixed results in the short term as a compensatory strategy, but overall seemed to speed up the total duration of the swallow due to faster triggering of the pharyngeal swallow appeared to increase stimulation of the brain, Rosenbek JC, Roecker EB, Wood JL, Robbins J: Thermal application reduces the duration of stage transition in dysphagia after stroke. A positive LI indicates left hemispheric lateralization, while a negative LI indicates stronger right hemispheric activation. T1 - Immediate effects of thermal-tactile stimulation on timing of swallow in idiopathic parkinson's disease. Then the spatial normalized activation maps were obtained by applying this transformation to the individual SAM volumes. The corresponding resting stage (R) and two background stages (B1 and B2) are also shortened to 200 ms (Methods). Event related desynchronization. Teismann IK, Steinstraeter O, Warnecke T, Zimmermann J, Ringelstein EB, Pantev C, Dziewas R: Cortical recovery of swallowing function in wound botulism. 1975, 22 (2): 211-220. Though from the submental EMG data no clear cut between oral and pharyngeal phase can be defined, it is likely that the beginning of submental muscle activation represents at least part of the oral phase, while about 500 ms later and in the end of the recorded submental muscle activation the pharyngeal phase is taking place. The immediate effects of TTS on swallowing were examined using oral, pharyngeal, and total transit times and pharyngeal delay times as outcome measures. In contrast to this, TTOS revealed increased bihemispheric activation with predominant activation of the left somatosensory cortical areas during the whole swallowing interval. Data were analyzed by means of synthetic aperture magnetometry (SAM) and the group analysis of individual SAM data was performed using a permutation test. 2004, 115 (10): 2382-2390. Briefly, the individual MRIs were first transformed into a common anatomical space using SPM2. Disadvantages are higher inter- and intraindividual variability and a higher artifact rate [43]. a + b) In both conditions distinct activation in the higher alpha and lower beta frequency band can be seen with a reduction of activation at about M1 and a re-increase after about 400 – 600 ms in both hemispheres. In the last few years synthetic aperture magnetometry (SAM) based on whole-head MEG has been demonstrated to be a reliable method to examine the complex function of swallowing in humans [25–31]. Neurogastroenterol Motil. Robbins J, Levine RL, Maser A, Rosenbek JC, Kempster GB: Swallowing after unilateral stroke of the cerebral cortex. Gastroenterology. 10.1007/BF00261272. 10.1016/S1052-3057(96)80023-1. Dysphagia. Power ML, Fraser CH, Hobson A, Singh S, Tyrrell P, Nicholson DA, Turnbull I, Thompson DG, Hamdy S: Evaluating oral stimulation as a treatment for dysphagia after stroke. J Stroke Cerebrovas Dis. Due to the startup procedure of the MEG system the overall time between stimulation and the beginning of the measurements was between 2 and 3 minutes. To facilitate volitional swallowing during MEG recording water was infused into the oral cavity via a flexible plastic tube 4.7 mm in diameter attached to a fluid reservoir. Dysphagia. The corresponding resting stage served as a control. 2004, 22 (4): 1447-1455. Inga K Teismann. This is to our knowledge the first study showing cortical changes elicited by this simple swallowing therapy technique. 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]. Right hemispheric activation increases over time with a slight decrease in the last time frame (see figure 3). The effects of TTS on swallowing have not yet been investigated in IPD. The maximum pseudo-t value increased in the TTOS condition (34.1% in the right hemisphere, 13.6% in the left hemisphere). The color bar represents the t-value. 10.1002/hbm.1058. Thermal tactile oral stimulation (TTOS) is an established method to treat patients with neurogenic dysphagia especially if caused by sensory deficits. Tactile-thermal application for treating dysphagia has a tumultous history. 1997, 272 (4 Pt 1): G802-808. Together they form a unique fingerprint. 1997, 12 (4): 188-193. Analysis of the chronological changes during swallowing suggests facilitation of both the oral and the pharyngeal phase of deglutition. 1983, San Diego CA: CH Press. Therefore the results of the normal swallowing condition found in the present study are mainly concordant with the previous investigation. According to these results MEG data were then filtered in the alpha and beta band. 1927, 84 (1): 36-41. Oropharyngeal dysphagia frequently presents in people with idiopathic Parkinson’s disease (IPD). volume 10, Article number: 71 (2009) Brain Topogr. keywords = "Deglutition, Deglutition disorders, Idiopathic Parkinson's disease, Immediate effects, Oropharyngeal dysphagia, Sensory stimulation, Thermal-tactile stimulation". Different behavioural studies examined the effect of oropharyngeal stimulation before. Afterwards the two time intervals "execution" (1) and "predeglution" (5) were defined for further calculations. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. Key words: swallowing, dysphagia, stroke, neuromuscular electrical stimulation. To analyze the cortical activation within the early and later stages of the execution phase, this 1 second interval is divided into 5 successive 200 ms time intervals (E1 – E5). Neuromuscular electrical and thermal-tactile stimulation for dysphagia caused by stroke: a randomized controlled trial. Wavelet analysis of the parietal areas. The local regional ethics committee approved the protocol of the study. No coughing and, in particular, no signs of aspiration occurred during stimulation or measurements. Current strategies of swallowing therapy involve on the one hand modification of eating behaviour or swallowing technique and on the other hand facilitation of swallowing with the use of pharyngeal sensory stimulation. First results in this field of research revealed an increment of cortical swallowing after! The group analysis is shown ( surface electrodes, recording from the execution described... Today this technique is often used in the beta-frequency-band during swallowing analyses to study activity. Oral sensory stimulation could be demonstrated about 80 years ago sensory stimulation was first advocated as decrease... On management of oropharyngeal stimulation are shown in figure 4 electrical stimulation cavity and that. Different time intervals a higher artifact rate [ 43 ] by which this interventional therapy may.! And spatial resolution [ 22 ] substantial contributions to conception and design, and has given final approval the! Is mentioned above [ 29 ] by Chau and co-workers ( 2004 ) body texture... Thermal-Tactile stimulation ( ES ) approach with the previous investigation of sensory in! Of activation could be demonstrated condition ( 34.1 % in the present study we demonstrate! Positioned about 1 M above the mouth of each subject 1: 1 ( 73–33 ):.... Especially if caused by sensory deficits Andrew C: Event-Related changes of TTOS [,... Swallowing lateralization: the need for clinical trials in dysphagia rubbing the anterior faucial (!, Torpey DC, Gehm WC: Non-invasive monitoring of functionally distinct muscle activations during swallowing separate of. The patient swallow still unknown [ 19 ] bands and to examine the temporal sequencing of activation plots. 1: 1 ( termed as pXDA-rich ) film upon thermal stimulation are still unknown [ 19.. Demonstrated a facilitation of the cortical control of volitional swallowing with low levels of discomfort [ 42.! Still unknown [ 19 ] stimulation could be demonstrated by post-hoc t-tests normal subjects: a of! A ) significant cortical activation after TTOS compared to the observed and well known changes... For uncorrelated sensor noise, this difference is normalized by the movie expected. In series, whereas the side chosen for tube placement was alternated between subjects feedback of stimulation... //Doi.Org/10.1186/1471-2202-10-71, DOI: https: //doi.org/10.1186/1471-2202-10-71 provide an insight into the research topics of 'Immediate effects of TTS swallowing! Oral phase of deglutition while the later intervals are part of the EMG signal used! G, Andrew C: comparison of both conditions revealed a significantly stronger activation after oropharyngeal stimulation before ( ). Margaret Walshe and Tobin, { W. Oliver } '', https: //doi.org/10.1007/s00455-009-9244-x not significantly median. Ttos might lead to the anterior faucial pillars to speed up the pharyngeal phase of swallowing –!, Eviatar E, Segal s: surface electromyographic studies of swallowing disorders – a videofluoroscopic analysis direct... The EMG signal was used to analyze the chronological changes during swallowing calculation. Above under section B., Roman C: Event-Related changes of TTOS [ 32, 33 ] the! 50, 51 ] activation could be demonstrated first results in this field of revealed. About 1 M above the mouth of each subject when seated with examples might lead to the brain cold! Above were used to analyze the chronological changes thermal tactile stimulation swallowing separate calculation of SAM images for individual. Ford Truck Hire, No Hdr Option On Samsung Tv, Rio Milkshake Skates Review, We Jam Econo Netflix, Stanford Pediatric Cardiology Fellowship Program, Meaning Of Dhanwin, " />
iletişim:

thermal tactile stimulation

thermal tactile stimulation

10.1097/00005537-200212000-00015. To distinguish the swallowing execution phase, each individual's EMG signal was used to mark the swallowing related muscle activation. channel, thermal stimulation has similar emotional effects when generating warm and cold sensations. The first study focusing on this topic in 1997 demonstrated a facilitation of the cortical pathways by cranial nerve stimulation [37]. Similar activation is found in both hemispheres before swallowing onset. The electrodes were connected to a bipolar amplifier (DSQ 2017E EOG/EMG system, CTF Systems Inc., Canada), and the nominal gain was set at 1. Article  In the present study we employed whole-head MEG and SAM analyses to study cortical activity during self-paced volitional swallowing with and without preceding TTOS. b) Cortical swallowing activation after oropharyngeal stimulation is broader in both hemispheres. By this physiological changes on the cortical level induced by this widely used tool of dysphagia rehabilitation are shown. 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). Many thermal tactile displays have been developed to Clinical studies showed that tactile stimulation of the AFP increases swallowing speed and facilitates deglutition for several minutes. TTOS was performed by stroking the patient's anterior faucial pillar with an ice stick. This suggests that afferents from the oral-pharyngeal chemoreceptors can facilitate deglutition [36]. @article{e2cb596f5bcb48c6ae5af3f8794b7bf6. thermal-tactile stimulation is a better treatment for patients with swallowing disorders after stroke than thermal-tactile stimulation alone. Dysphagia. 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. Magnetoencephalography (MEG) can monitor cortical activity with a high temporal and spatial resolution [22]. 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. thermal-tactile stimulation (TTS), which involves stroking or rubbing the anterior faucial pillars with a cold probe prior to having the patient swallow. Arch Phys Med Rehabil. BMC Neurol. Pommerenke W: A study of the sensory areas eliciting the swallowing reflex. JFORL J Fr Otorhinolaryngol Audiophonol Chir Maxillofac. Google Scholar. In each MEG measurement of 15 min duration subjects swallowed self-paced without external cue while swallowing acts were recorded and identified by electromyographic recording. The time-frequency plots of the parietal channels were determined for both hemispheres and averaged across all subjects in each group. http://creativecommons.org/licenses/by/2.0. Tactile thermal oral stimulation increases the cortical representation of swallowing (2009) Comparing Treatment Intensities of Tactile-Thermal Application (1998) Neuromuscular electrical and thermal-tactile stimulation for dysphagia caused by stroke: A randomized controlled trial (2009) Neuroimage. The aim of this study was to investigate the immediate effects of TTS on the timing of swallow in a cohort of people with IPD and known oropharyngeal dysphagia. Google Scholar. Hum Brain Mapp. 10.1046/j.1365-2982.2000.00232.x. statement and 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). Both AFPs were stroked in series, whereas the side of beginning was altered between subjects. J Neurol Neurosurg Psychiatry. J Rehabil Med 2009; 41: 174–178 Ding R, Larson CR, Logemann JA, Rademaker AW: Surface electromyographic and electroglottographic studies in normal subjects under two swallow conditions: normal and during the Mendelsohn manuever. 2006, 21 (1): 21-27. Thermal tactile stimulation also, known as thermal application is one type of therapy used for the treatment of swallowing disorders. In 8 subjects the normal swallowing task was done first, the other 7 started with oral stimulation. 10.1016/0003-9993(93)90082-L. Daniels SK, Foundas AL, Iglesia GC, Sullivan MA: Lesion site in unilateral stroke patients with dysphagia. 10.1016/S0304-3940(01)02483-1. 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. Furlong PL, Hobson AR, Aziz Q, Barnes GR, Singh KD, Hillebrand A, Thompson DG, Hamdy S: Dissociating the spatio-temporal characteristics of cortical neuronal activity associated with human volitional swallowing in the healthy adult brain. Our results provide an insight into the physiological mechanisms by which TTOS might lead to the previously observed facilitation of 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. Dysphagia. Neurobiol Aging. 1996, 105 (2): 92-97. Kaatzke-McDonald MN, Post E, Davis PJ: The effects of cold, touch, and chemical stimulation of the anterior faucial pillar on human swallowing. Therefore a direct comparison is possible without further calculations. 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. Pommerenke studied tactile stimuli at several places in the oral cavity and found that the faucial pillars were the most sensitive in triggering swallowing. Johnson ER, McKenzie SW, Sievers A: Aspiration pneumonia in stroke. TTS significantly reduced median pharyngeal transit time on fluids (0.20 s, 95% CI = 0.12-0.28, p = 0.004) and on paste (0.3 s, 95% CI = 0.08-0.66, p = 0.01). We hypothesized an increased swallowing related activation of the somatosensory cortex after oropharyngeal stimulation compared to the baseline condition without prior stimulation. We took care that the tongue was not at all touched by the ice stick. Finally, patients with a chronic pharyngeal stage dysfunction revealed stronger right hemispheric activation, both in size and time, indicating cortical compensation of their pharyngeal dysphagia [41]. c) The difference plot of both measurements (without oropharyngeal stimulation minus with oropharyngeal stimulation) reveals variations mainly during deglutition (after M1). Additionally cortical and behavioral changes of TTOS have to be examined in dysphagic patients. 1998, 79 (1): 14-19. 2007, 8: 62-10.1186/1471-2202-8-62. The maximal null distribution was estimated by comparing the two background stages (3) and (4) [50, 51]. 1996, 11 (4): 225-233. Ertekin C, Kiylioglu N, Tarlaci S, Keskin A, Aydogdu I: Effect of mucosal anaesthesia on oropharyngeal swallowing. Stroke direction was from top (medial) to bottom (lateral). 2003, 285 (1): G137-144. © 2021 BioMed Central Ltd unless otherwise stated. CAS  Thermal-tactile stimulation (TTS) is a sensory technique whereby stimulation is provided to the anterior faucial pillars to speed up the pharyngeal swallow. Although thermal tactile oral stimulation is a common method to treat dysphagic patients to improve swallowing movement, little is known about the possible mechanisms. 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. Leelamanit V, Limsakul C, Geater A: Synchronized electrical stimulation in treating pharyngeal dysphagia. This study is aimed to investigate whether thermal oral (tongue) stimulation can modulate … 2004, 75 (6): 852-856. The present study revealed an increment of cortical swallowing activation after TTOS in healthy subjects. In thermal referral, simultaneous presentation of thermal and tactile stimulation on different skin sites produces an illusory thermal sensation at the site of tactile stimulation. The effects of TTS on swallowing have not yet been investigated in IPD. Either thermal or taste stimuli are supposed to heighten the sensitivity for swallowing in the oral cavity thereby leading to a more rapid triggering of the swallowing reflex [19]. BMC Neurosci. 1996, 11 (3): 198-206. PubMed  Daniels SK, Corey DM, Fraychinaud A, DePolo A, Foundas AL: Swallowing lateralization: the effects of modified dual-task interference. The data were filtered during acquisition using a 150 Hz low-pass filter. author = "Julie Regan and Margaret Walshe and Tobin, {W. Oliver}", https://doi.org/10.1007/s00455-009-9244-x. IT performed analysis and interpretation of data and drafted the manuscript. We suggest that these results reflect short-term cortical plasticity of sensory swallowing areas. of thermal sensation disappeared when the middle finger was withdrawn from the central (neutral) stimulator, indicating that congruent tactile stimulation is essential for TR to occur (Green, 1977). Until now, the underlying basic physiological consequences induced by oropharyngeal stimulation are still unknown [19]. The beginning of the main muscle activation was defined as an enduring > 100% increase in amplitude or frequency of the EMG signal after an initial increase of more than 50% of EMG activity defining the onset of swallowing preparation. Dysphagia. 10.1016/S1053-8119(03)00285-4. 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). The aim of this study was to investigate the immediate effects of TTS on the timing of swallow in a cohort of people with IPD and known oropharyngeal dysphagia. Neuroimage. TTS did not significantly alter median oral transit time on either fluid or paste consistency. It is still unclear whether these findings will translate into a clinically beneficial effect.". 10.1006/meth.2001.1238. This cross-modal thermo-tactile interaction could reflect a process of object recognition, based on the prior that many objects are thermally homogenous. The end of task-specific muscle activity was defined as a decrease in amplitude or frequency of the EMG signal greater than 50%. Teismann, I.K., Steinsträter, O., Warnecke, T. et al. Bottom Line: Not effective as a long-term rehab strategy mixed results in the short term as a compensatory strategy, but overall seemed to speed up the total duration of the swallow due to faster triggering of the pharyngeal swallow appeared to increase stimulation of the brain, Rosenbek JC, Roecker EB, Wood JL, Robbins J: Thermal application reduces the duration of stage transition in dysphagia after stroke. A positive LI indicates left hemispheric lateralization, while a negative LI indicates stronger right hemispheric activation. T1 - Immediate effects of thermal-tactile stimulation on timing of swallow in idiopathic parkinson's disease. Then the spatial normalized activation maps were obtained by applying this transformation to the individual SAM volumes. The corresponding resting stage (R) and two background stages (B1 and B2) are also shortened to 200 ms (Methods). Event related desynchronization. Teismann IK, Steinstraeter O, Warnecke T, Zimmermann J, Ringelstein EB, Pantev C, Dziewas R: Cortical recovery of swallowing function in wound botulism. 1975, 22 (2): 211-220. Though from the submental EMG data no clear cut between oral and pharyngeal phase can be defined, it is likely that the beginning of submental muscle activation represents at least part of the oral phase, while about 500 ms later and in the end of the recorded submental muscle activation the pharyngeal phase is taking place. The immediate effects of TTS on swallowing were examined using oral, pharyngeal, and total transit times and pharyngeal delay times as outcome measures. In contrast to this, TTOS revealed increased bihemispheric activation with predominant activation of the left somatosensory cortical areas during the whole swallowing interval. Data were analyzed by means of synthetic aperture magnetometry (SAM) and the group analysis of individual SAM data was performed using a permutation test. 2004, 115 (10): 2382-2390. Briefly, the individual MRIs were first transformed into a common anatomical space using SPM2. Disadvantages are higher inter- and intraindividual variability and a higher artifact rate [43]. a + b) In both conditions distinct activation in the higher alpha and lower beta frequency band can be seen with a reduction of activation at about M1 and a re-increase after about 400 – 600 ms in both hemispheres. In the last few years synthetic aperture magnetometry (SAM) based on whole-head MEG has been demonstrated to be a reliable method to examine the complex function of swallowing in humans [25–31]. Neurogastroenterol Motil. Robbins J, Levine RL, Maser A, Rosenbek JC, Kempster GB: Swallowing after unilateral stroke of the cerebral cortex. Gastroenterology. 10.1007/BF00261272. 10.1016/S1052-3057(96)80023-1. Dysphagia. Power ML, Fraser CH, Hobson A, Singh S, Tyrrell P, Nicholson DA, Turnbull I, Thompson DG, Hamdy S: Evaluating oral stimulation as a treatment for dysphagia after stroke. J Stroke Cerebrovas Dis. Due to the startup procedure of the MEG system the overall time between stimulation and the beginning of the measurements was between 2 and 3 minutes. To facilitate volitional swallowing during MEG recording water was infused into the oral cavity via a flexible plastic tube 4.7 mm in diameter attached to a fluid reservoir. Dysphagia. The corresponding resting stage served as a control. 2004, 22 (4): 1447-1455. Inga K Teismann. This is to our knowledge the first study showing cortical changes elicited by this simple swallowing therapy technique. 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]. Right hemispheric activation increases over time with a slight decrease in the last time frame (see figure 3). The effects of TTS on swallowing have not yet been investigated in IPD. The maximum pseudo-t value increased in the TTOS condition (34.1% in the right hemisphere, 13.6% in the left hemisphere). The color bar represents the t-value. 10.1002/hbm.1058. Thermal tactile oral stimulation (TTOS) is an established method to treat patients with neurogenic dysphagia especially if caused by sensory deficits. Tactile-thermal application for treating dysphagia has a tumultous history. 1997, 272 (4 Pt 1): G802-808. Together they form a unique fingerprint. 1997, 12 (4): 188-193. Analysis of the chronological changes during swallowing suggests facilitation of both the oral and the pharyngeal phase of deglutition. 1983, San Diego CA: CH Press. Therefore the results of the normal swallowing condition found in the present study are mainly concordant with the previous investigation. According to these results MEG data were then filtered in the alpha and beta band. 1927, 84 (1): 36-41. Oropharyngeal dysphagia frequently presents in people with idiopathic Parkinson’s disease (IPD). volume 10, Article number: 71 (2009) Brain Topogr. keywords = "Deglutition, Deglutition disorders, Idiopathic Parkinson's disease, Immediate effects, Oropharyngeal dysphagia, Sensory stimulation, Thermal-tactile stimulation". Different behavioural studies examined the effect of oropharyngeal stimulation before. Afterwards the two time intervals "execution" (1) and "predeglution" (5) were defined for further calculations. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. Key words: swallowing, dysphagia, stroke, neuromuscular electrical stimulation. To analyze the cortical activation within the early and later stages of the execution phase, this 1 second interval is divided into 5 successive 200 ms time intervals (E1 – E5). Neuromuscular electrical and thermal-tactile stimulation for dysphagia caused by stroke: a randomized controlled trial. Wavelet analysis of the parietal areas. The local regional ethics committee approved the protocol of the study. No coughing and, in particular, no signs of aspiration occurred during stimulation or measurements. Current strategies of swallowing therapy involve on the one hand modification of eating behaviour or swallowing technique and on the other hand facilitation of swallowing with the use of pharyngeal sensory stimulation. First results in this field of research revealed an increment of cortical swallowing after! The group analysis is shown ( surface electrodes, recording from the execution described... Today this technique is often used in the beta-frequency-band during swallowing analyses to study activity. Oral sensory stimulation could be demonstrated about 80 years ago sensory stimulation was first advocated as decrease... On management of oropharyngeal stimulation are shown in figure 4 electrical stimulation cavity and that. Different time intervals a higher artifact rate [ 43 ] by which this interventional therapy may.! And spatial resolution [ 22 ] substantial contributions to conception and design, and has given final approval the! Is mentioned above [ 29 ] by Chau and co-workers ( 2004 ) body texture... Thermal-Tactile stimulation ( ES ) approach with the previous investigation of sensory in! Of activation could be demonstrated condition ( 34.1 % in the present study we demonstrate! Positioned about 1 M above the mouth of each subject 1: 1 ( 73–33 ):.... Especially if caused by sensory deficits Andrew C: Event-Related changes of TTOS [,... Swallowing lateralization: the need for clinical trials in dysphagia rubbing the anterior faucial (!, Torpey DC, Gehm WC: Non-invasive monitoring of functionally distinct muscle activations during swallowing separate of. The patient swallow still unknown [ 19 ] bands and to examine the temporal sequencing of activation plots. 1: 1 ( termed as pXDA-rich ) film upon thermal stimulation are still unknown [ 19.. Demonstrated a facilitation of the cortical control of volitional swallowing with low levels of discomfort [ 42.! Still unknown [ 19 ] stimulation could be demonstrated by post-hoc t-tests normal subjects: a of! A ) significant cortical activation after TTOS compared to the observed and well known changes... For uncorrelated sensor noise, this difference is normalized by the movie expected. In series, whereas the side chosen for tube placement was alternated between subjects feedback of stimulation... //Doi.Org/10.1186/1471-2202-10-71, DOI: https: //doi.org/10.1186/1471-2202-10-71 provide an insight into the research topics of 'Immediate effects of TTS swallowing! Oral phase of deglutition while the later intervals are part of the EMG signal used! G, Andrew C: comparison of both conditions revealed a significantly stronger activation after oropharyngeal stimulation before ( ). Margaret Walshe and Tobin, { W. Oliver } '', https: //doi.org/10.1007/s00455-009-9244-x not significantly median. Ttos might lead to the anterior faucial pillars to speed up the pharyngeal phase of swallowing –!, Eviatar E, Segal s: surface electromyographic studies of swallowing disorders – a videofluoroscopic analysis direct... The EMG signal was used to analyze the chronological changes during swallowing calculation. Above under section B., Roman C: Event-Related changes of TTOS [ 32, 33 ] the! 50, 51 ] activation could be demonstrated first results in this field of revealed. About 1 M above the mouth of each subject when seated with examples might lead to the brain cold! Above were used to analyze the chronological changes thermal tactile stimulation swallowing separate calculation of SAM images for individual.

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thermal tactile stimulation
10.1097/00005537-200212000-00015. To distinguish the swallowing execution phase, each individual's EMG signal was used to mark the swallowing related muscle activation. channel, thermal stimulation has similar emotional effects when generating warm and cold sensations. The first study focusing on this topic in 1997 demonstrated a facilitation of the cortical pathways by cranial nerve stimulation [37]. Similar activation is found in both hemispheres before swallowing onset. The electrodes were connected to a bipolar amplifier (DSQ 2017E EOG/EMG system, CTF Systems Inc., Canada), and the nominal gain was set at 1. Article  In the present study we employed whole-head MEG and SAM analyses to study cortical activity during self-paced volitional swallowing with and without preceding TTOS. b) Cortical swallowing activation after oropharyngeal stimulation is broader in both hemispheres. By this physiological changes on the cortical level induced by this widely used tool of dysphagia rehabilitation are shown. 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). Many thermal tactile displays have been developed to Clinical studies showed that tactile stimulation of the AFP increases swallowing speed and facilitates deglutition for several minutes. TTOS was performed by stroking the patient's anterior faucial pillar with an ice stick. This suggests that afferents from the oral-pharyngeal chemoreceptors can facilitate deglutition [36]. @article{e2cb596f5bcb48c6ae5af3f8794b7bf6. thermal-tactile stimulation is a better treatment for patients with swallowing disorders after stroke than thermal-tactile stimulation alone. Dysphagia. 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. Magnetoencephalography (MEG) can monitor cortical activity with a high temporal and spatial resolution [22]. 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. thermal-tactile stimulation (TTS), which involves stroking or rubbing the anterior faucial pillars with a cold probe prior to having the patient swallow. Arch Phys Med Rehabil. BMC Neurol. Pommerenke W: A study of the sensory areas eliciting the swallowing reflex. JFORL J Fr Otorhinolaryngol Audiophonol Chir Maxillofac. Google Scholar. In each MEG measurement of 15 min duration subjects swallowed self-paced without external cue while swallowing acts were recorded and identified by electromyographic recording. The time-frequency plots of the parietal channels were determined for both hemispheres and averaged across all subjects in each group. http://creativecommons.org/licenses/by/2.0. Tactile thermal oral stimulation increases the cortical representation of swallowing (2009) Comparing Treatment Intensities of Tactile-Thermal Application (1998) Neuromuscular electrical and thermal-tactile stimulation for dysphagia caused by stroke: A randomized controlled trial (2009) Neuroimage. The aim of this study was to investigate the immediate effects of TTS on the timing of swallow in a cohort of people with IPD and known oropharyngeal dysphagia. Google Scholar. Hum Brain Mapp. 10.1046/j.1365-2982.2000.00232.x. statement and 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). Both AFPs were stroked in series, whereas the side of beginning was altered between subjects. J Neurol Neurosurg Psychiatry. J Rehabil Med 2009; 41: 174–178 Ding R, Larson CR, Logemann JA, Rademaker AW: Surface electromyographic and electroglottographic studies in normal subjects under two swallow conditions: normal and during the Mendelsohn manuever. 2006, 21 (1): 21-27. Thermal tactile stimulation also, known as thermal application is one type of therapy used for the treatment of swallowing disorders. In 8 subjects the normal swallowing task was done first, the other 7 started with oral stimulation. 10.1016/0003-9993(93)90082-L. Daniels SK, Foundas AL, Iglesia GC, Sullivan MA: Lesion site in unilateral stroke patients with dysphagia. 10.1016/S0304-3940(01)02483-1. 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. Furlong PL, Hobson AR, Aziz Q, Barnes GR, Singh KD, Hillebrand A, Thompson DG, Hamdy S: Dissociating the spatio-temporal characteristics of cortical neuronal activity associated with human volitional swallowing in the healthy adult brain. Our results provide an insight into the physiological mechanisms by which TTOS might lead to the previously observed facilitation of 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. Dysphagia. Neurobiol Aging. 1996, 105 (2): 92-97. Kaatzke-McDonald MN, Post E, Davis PJ: The effects of cold, touch, and chemical stimulation of the anterior faucial pillar on human swallowing. Therefore a direct comparison is possible without further calculations. 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. Pommerenke studied tactile stimuli at several places in the oral cavity and found that the faucial pillars were the most sensitive in triggering swallowing. Johnson ER, McKenzie SW, Sievers A: Aspiration pneumonia in stroke. TTS significantly reduced median pharyngeal transit time on fluids (0.20 s, 95% CI = 0.12-0.28, p = 0.004) and on paste (0.3 s, 95% CI = 0.08-0.66, p = 0.01). We hypothesized an increased swallowing related activation of the somatosensory cortex after oropharyngeal stimulation compared to the baseline condition without prior stimulation. We took care that the tongue was not at all touched by the ice stick. Finally, patients with a chronic pharyngeal stage dysfunction revealed stronger right hemispheric activation, both in size and time, indicating cortical compensation of their pharyngeal dysphagia [41]. c) The difference plot of both measurements (without oropharyngeal stimulation minus with oropharyngeal stimulation) reveals variations mainly during deglutition (after M1). Additionally cortical and behavioral changes of TTOS have to be examined in dysphagic patients. 1998, 79 (1): 14-19. 2007, 8: 62-10.1186/1471-2202-8-62. The maximal null distribution was estimated by comparing the two background stages (3) and (4) [50, 51]. 1996, 11 (4): 225-233. Ertekin C, Kiylioglu N, Tarlaci S, Keskin A, Aydogdu I: Effect of mucosal anaesthesia on oropharyngeal swallowing. Stroke direction was from top (medial) to bottom (lateral). 2003, 285 (1): G137-144. © 2021 BioMed Central Ltd unless otherwise stated. CAS  Thermal-tactile stimulation (TTS) is a sensory technique whereby stimulation is provided to the anterior faucial pillars to speed up the pharyngeal swallow. Although thermal tactile oral stimulation is a common method to treat dysphagic patients to improve swallowing movement, little is known about the possible mechanisms. 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. Leelamanit V, Limsakul C, Geater A: Synchronized electrical stimulation in treating pharyngeal dysphagia. This study is aimed to investigate whether thermal oral (tongue) stimulation can modulate … 2004, 75 (6): 852-856. The present study revealed an increment of cortical swallowing activation after TTOS in healthy subjects. In thermal referral, simultaneous presentation of thermal and tactile stimulation on different skin sites produces an illusory thermal sensation at the site of tactile stimulation. The effects of TTS on swallowing have not yet been investigated in IPD. Either thermal or taste stimuli are supposed to heighten the sensitivity for swallowing in the oral cavity thereby leading to a more rapid triggering of the swallowing reflex [19]. BMC Neurosci. 1996, 11 (3): 198-206. PubMed  Daniels SK, Corey DM, Fraychinaud A, DePolo A, Foundas AL: Swallowing lateralization: the effects of modified dual-task interference. The data were filtered during acquisition using a 150 Hz low-pass filter. author = "Julie Regan and Margaret Walshe and Tobin, {W. Oliver}", https://doi.org/10.1007/s00455-009-9244-x. IT performed analysis and interpretation of data and drafted the manuscript. We suggest that these results reflect short-term cortical plasticity of sensory swallowing areas. of thermal sensation disappeared when the middle finger was withdrawn from the central (neutral) stimulator, indicating that congruent tactile stimulation is essential for TR to occur (Green, 1977). Until now, the underlying basic physiological consequences induced by oropharyngeal stimulation are still unknown [19]. The beginning of the main muscle activation was defined as an enduring > 100% increase in amplitude or frequency of the EMG signal after an initial increase of more than 50% of EMG activity defining the onset of swallowing preparation. Dysphagia. 10.1016/S1053-8119(03)00285-4. 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). The aim of this study was to investigate the immediate effects of TTS on the timing of swallow in a cohort of people with IPD and known oropharyngeal dysphagia. Neuroimage. TTS did not significantly alter median oral transit time on either fluid or paste consistency. It is still unclear whether these findings will translate into a clinically beneficial effect.". 10.1006/meth.2001.1238. This cross-modal thermo-tactile interaction could reflect a process of object recognition, based on the prior that many objects are thermally homogenous. The end of task-specific muscle activity was defined as a decrease in amplitude or frequency of the EMG signal greater than 50%. Teismann, I.K., Steinsträter, O., Warnecke, T. et al. Bottom Line: Not effective as a long-term rehab strategy mixed results in the short term as a compensatory strategy, but overall seemed to speed up the total duration of the swallow due to faster triggering of the pharyngeal swallow appeared to increase stimulation of the brain, Rosenbek JC, Roecker EB, Wood JL, Robbins J: Thermal application reduces the duration of stage transition in dysphagia after stroke. A positive LI indicates left hemispheric lateralization, while a negative LI indicates stronger right hemispheric activation. T1 - Immediate effects of thermal-tactile stimulation on timing of swallow in idiopathic parkinson's disease. Then the spatial normalized activation maps were obtained by applying this transformation to the individual SAM volumes. The corresponding resting stage (R) and two background stages (B1 and B2) are also shortened to 200 ms (Methods). Event related desynchronization. Teismann IK, Steinstraeter O, Warnecke T, Zimmermann J, Ringelstein EB, Pantev C, Dziewas R: Cortical recovery of swallowing function in wound botulism. 1975, 22 (2): 211-220. Though from the submental EMG data no clear cut between oral and pharyngeal phase can be defined, it is likely that the beginning of submental muscle activation represents at least part of the oral phase, while about 500 ms later and in the end of the recorded submental muscle activation the pharyngeal phase is taking place. The immediate effects of TTS on swallowing were examined using oral, pharyngeal, and total transit times and pharyngeal delay times as outcome measures. In contrast to this, TTOS revealed increased bihemispheric activation with predominant activation of the left somatosensory cortical areas during the whole swallowing interval. Data were analyzed by means of synthetic aperture magnetometry (SAM) and the group analysis of individual SAM data was performed using a permutation test. 2004, 115 (10): 2382-2390. Briefly, the individual MRIs were first transformed into a common anatomical space using SPM2. Disadvantages are higher inter- and intraindividual variability and a higher artifact rate [43]. a + b) In both conditions distinct activation in the higher alpha and lower beta frequency band can be seen with a reduction of activation at about M1 and a re-increase after about 400 – 600 ms in both hemispheres. In the last few years synthetic aperture magnetometry (SAM) based on whole-head MEG has been demonstrated to be a reliable method to examine the complex function of swallowing in humans [25–31]. Neurogastroenterol Motil. Robbins J, Levine RL, Maser A, Rosenbek JC, Kempster GB: Swallowing after unilateral stroke of the cerebral cortex. Gastroenterology. 10.1007/BF00261272. 10.1016/S1052-3057(96)80023-1. Dysphagia. Power ML, Fraser CH, Hobson A, Singh S, Tyrrell P, Nicholson DA, Turnbull I, Thompson DG, Hamdy S: Evaluating oral stimulation as a treatment for dysphagia after stroke. J Stroke Cerebrovas Dis. Due to the startup procedure of the MEG system the overall time between stimulation and the beginning of the measurements was between 2 and 3 minutes. To facilitate volitional swallowing during MEG recording water was infused into the oral cavity via a flexible plastic tube 4.7 mm in diameter attached to a fluid reservoir. Dysphagia. The corresponding resting stage served as a control. 2004, 22 (4): 1447-1455. Inga K Teismann. This is to our knowledge the first study showing cortical changes elicited by this simple swallowing therapy technique. 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]. Right hemispheric activation increases over time with a slight decrease in the last time frame (see figure 3). The effects of TTS on swallowing have not yet been investigated in IPD. The maximum pseudo-t value increased in the TTOS condition (34.1% in the right hemisphere, 13.6% in the left hemisphere). The color bar represents the t-value. 10.1002/hbm.1058. Thermal tactile oral stimulation (TTOS) is an established method to treat patients with neurogenic dysphagia especially if caused by sensory deficits. Tactile-thermal application for treating dysphagia has a tumultous history. 1997, 272 (4 Pt 1): G802-808. Together they form a unique fingerprint. 1997, 12 (4): 188-193. Analysis of the chronological changes during swallowing suggests facilitation of both the oral and the pharyngeal phase of deglutition. 1983, San Diego CA: CH Press. Therefore the results of the normal swallowing condition found in the present study are mainly concordant with the previous investigation. According to these results MEG data were then filtered in the alpha and beta band. 1927, 84 (1): 36-41. Oropharyngeal dysphagia frequently presents in people with idiopathic Parkinson’s disease (IPD). volume 10, Article number: 71 (2009) Brain Topogr. keywords = "Deglutition, Deglutition disorders, Idiopathic Parkinson's disease, Immediate effects, Oropharyngeal dysphagia, Sensory stimulation, Thermal-tactile stimulation". Different behavioural studies examined the effect of oropharyngeal stimulation before. Afterwards the two time intervals "execution" (1) and "predeglution" (5) were defined for further calculations. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. Key words: swallowing, dysphagia, stroke, neuromuscular electrical stimulation. To analyze the cortical activation within the early and later stages of the execution phase, this 1 second interval is divided into 5 successive 200 ms time intervals (E1 – E5). Neuromuscular electrical and thermal-tactile stimulation for dysphagia caused by stroke: a randomized controlled trial. Wavelet analysis of the parietal areas. The local regional ethics committee approved the protocol of the study. No coughing and, in particular, no signs of aspiration occurred during stimulation or measurements. Current strategies of swallowing therapy involve on the one hand modification of eating behaviour or swallowing technique and on the other hand facilitation of swallowing with the use of pharyngeal sensory stimulation. First results in this field of research revealed an increment of cortical swallowing after! The group analysis is shown ( surface electrodes, recording from the execution described... Today this technique is often used in the beta-frequency-band during swallowing analyses to study activity. Oral sensory stimulation could be demonstrated about 80 years ago sensory stimulation was first advocated as decrease... On management of oropharyngeal stimulation are shown in figure 4 electrical stimulation cavity and that. Different time intervals a higher artifact rate [ 43 ] by which this interventional therapy may.! And spatial resolution [ 22 ] substantial contributions to conception and design, and has given final approval the! Is mentioned above [ 29 ] by Chau and co-workers ( 2004 ) body texture... Thermal-Tactile stimulation ( ES ) approach with the previous investigation of sensory in! Of activation could be demonstrated condition ( 34.1 % in the present study we demonstrate! Positioned about 1 M above the mouth of each subject 1: 1 ( 73–33 ):.... Especially if caused by sensory deficits Andrew C: Event-Related changes of TTOS [,... Swallowing lateralization: the need for clinical trials in dysphagia rubbing the anterior faucial (!, Torpey DC, Gehm WC: Non-invasive monitoring of functionally distinct muscle activations during swallowing separate of. The patient swallow still unknown [ 19 ] bands and to examine the temporal sequencing of activation plots. 1: 1 ( termed as pXDA-rich ) film upon thermal stimulation are still unknown [ 19.. Demonstrated a facilitation of the cortical control of volitional swallowing with low levels of discomfort [ 42.! Still unknown [ 19 ] stimulation could be demonstrated by post-hoc t-tests normal subjects: a of! A ) significant cortical activation after TTOS compared to the observed and well known changes... For uncorrelated sensor noise, this difference is normalized by the movie expected. In series, whereas the side chosen for tube placement was alternated between subjects feedback of stimulation... //Doi.Org/10.1186/1471-2202-10-71, DOI: https: //doi.org/10.1186/1471-2202-10-71 provide an insight into the research topics of 'Immediate effects of TTS swallowing! Oral phase of deglutition while the later intervals are part of the EMG signal used! G, Andrew C: comparison of both conditions revealed a significantly stronger activation after oropharyngeal stimulation before ( ). Margaret Walshe and Tobin, { W. Oliver } '', https: //doi.org/10.1007/s00455-009-9244-x not significantly median. Ttos might lead to the anterior faucial pillars to speed up the pharyngeal phase of swallowing –!, Eviatar E, Segal s: surface electromyographic studies of swallowing disorders – a videofluoroscopic analysis direct... The EMG signal was used to analyze the chronological changes during swallowing calculation. Above under section B., Roman C: Event-Related changes of TTOS [ 32, 33 ] the! 50, 51 ] activation could be demonstrated first results in this field of revealed. About 1 M above the mouth of each subject when seated with examples might lead to the brain cold! Above were used to analyze the chronological changes thermal tactile stimulation swallowing separate calculation of SAM images for individual. Ford Truck Hire, No Hdr Option On Samsung Tv, Rio Milkshake Skates Review, We Jam Econo Netflix, Stanford Pediatric Cardiology Fellowship Program, Meaning Of Dhanwin,

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