Cargando…
Tactile thermal oral stimulation increases the cortical representation of swallowing
BACKGROUND: Dysphagia is a leading complication in stroke patients causing aspiration pneumonia, malnutrition and increased mortality. Current strategies of swallowing therapy involve on the one hand modification of eating behaviour or swallowing technique and on the other hand facilitation of swall...
Autores principales: | , , , , , , |
---|---|
Formato: | Texto |
Lenguaje: | English |
Publicado: |
BioMed Central
2009
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2717969/ https://www.ncbi.nlm.nih.gov/pubmed/19566955 http://dx.doi.org/10.1186/1471-2202-10-71 |
_version_ | 1782169940656128000 |
---|---|
author | Teismann, Inga K Steinsträter, Olaf Warnecke, Tobias Suntrup, Sonja Ringelstein, Erich B Pantev, Christo Dziewas, Rainer |
author_facet | Teismann, Inga K Steinsträter, Olaf Warnecke, Tobias Suntrup, Sonja Ringelstein, Erich B Pantev, Christo Dziewas, Rainer |
author_sort | Teismann, Inga K |
collection | PubMed |
description | BACKGROUND: Dysphagia is a leading complication in stroke patients causing aspiration pneumonia, malnutrition and increased mortality. 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. Thermal tactile oral stimulation (TTOS) is an established method to treat patients with neurogenic dysphagia especially if caused by sensory deficits. Little is known about the possible mechanisms by which this interventional therapy may work. We employed whole-head MEG to study changes in cortical activation during self-paced volitional swallowing in fifteen healthy subjects with and without TTOS. Data were analyzed by means of synthetic aperture magnetometry (SAM) and the group analysis of individual SAM data was performed using a permutation test. RESULTS: Compared to the normal swallowing task a significantly increased bilateral cortical activation was seen after oropharyngeal stimulation. Analysis of the chronological changes during swallowing suggests facilitation of both the oral and the pharyngeal phase of deglutition. CONCLUSION: In the present study functional cortical changes elicited by oral sensory stimulation could be demonstrated. We suggest that these results reflect short-term cortical plasticity of sensory swallowing areas. These findings facilitate our understanding of the role of cortical reorganization in dysphagia treatment and recovery. |
format | Text |
id | pubmed-2717969 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2009 |
publisher | BioMed Central |
record_format | MEDLINE/PubMed |
spelling | pubmed-27179692009-07-30 Tactile thermal oral stimulation increases the cortical representation of swallowing Teismann, Inga K Steinsträter, Olaf Warnecke, Tobias Suntrup, Sonja Ringelstein, Erich B Pantev, Christo Dziewas, Rainer BMC Neurosci Research Article BACKGROUND: Dysphagia is a leading complication in stroke patients causing aspiration pneumonia, malnutrition and increased mortality. 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. Thermal tactile oral stimulation (TTOS) is an established method to treat patients with neurogenic dysphagia especially if caused by sensory deficits. Little is known about the possible mechanisms by which this interventional therapy may work. We employed whole-head MEG to study changes in cortical activation during self-paced volitional swallowing in fifteen healthy subjects with and without TTOS. Data were analyzed by means of synthetic aperture magnetometry (SAM) and the group analysis of individual SAM data was performed using a permutation test. RESULTS: Compared to the normal swallowing task a significantly increased bilateral cortical activation was seen after oropharyngeal stimulation. Analysis of the chronological changes during swallowing suggests facilitation of both the oral and the pharyngeal phase of deglutition. CONCLUSION: In the present study functional cortical changes elicited by oral sensory stimulation could be demonstrated. We suggest that these results reflect short-term cortical plasticity of sensory swallowing areas. These findings facilitate our understanding of the role of cortical reorganization in dysphagia treatment and recovery. BioMed Central 2009-06-30 /pmc/articles/PMC2717969/ /pubmed/19566955 http://dx.doi.org/10.1186/1471-2202-10-71 Text en Copyright © 2009 Teismann et al; licensee BioMed Central Ltd. http://creativecommons.org/licenses/by/2.0 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. |
spellingShingle | Research Article Teismann, Inga K Steinsträter, Olaf Warnecke, Tobias Suntrup, Sonja Ringelstein, Erich B Pantev, Christo Dziewas, Rainer Tactile thermal oral stimulation increases the cortical representation of swallowing |
title | Tactile thermal oral stimulation increases the cortical representation of swallowing |
title_full | Tactile thermal oral stimulation increases the cortical representation of swallowing |
title_fullStr | Tactile thermal oral stimulation increases the cortical representation of swallowing |
title_full_unstemmed | Tactile thermal oral stimulation increases the cortical representation of swallowing |
title_short | Tactile thermal oral stimulation increases the cortical representation of swallowing |
title_sort | tactile thermal oral stimulation increases the cortical representation of swallowing |
topic | Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2717969/ https://www.ncbi.nlm.nih.gov/pubmed/19566955 http://dx.doi.org/10.1186/1471-2202-10-71 |
work_keys_str_mv | AT teismanningak tactilethermaloralstimulationincreasesthecorticalrepresentationofswallowing AT steinstraterolaf tactilethermaloralstimulationincreasesthecorticalrepresentationofswallowing AT warnecketobias tactilethermaloralstimulationincreasesthecorticalrepresentationofswallowing AT suntrupsonja tactilethermaloralstimulationincreasesthecorticalrepresentationofswallowing AT ringelsteinerichb tactilethermaloralstimulationincreasesthecorticalrepresentationofswallowing AT pantevchristo tactilethermaloralstimulationincreasesthecorticalrepresentationofswallowing AT dziewasrainer tactilethermaloralstimulationincreasesthecorticalrepresentationofswallowing |