| Coordination of respiration and swallowing: functional pattern and relevance of vocal folds closure. | |
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MedLine Citation:
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PMID: 20520974 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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CONTEXT: Breathing and swallowing coordination, despite the expressive number of study, remain as theme deserving further research. OBJECTIVE: To identify a coordination pattern between swallowing and the natural breathing pause that occur in association with it (swallowing apnea) and also the relevance of the vocal folds closure in this process. METHODS: Sixty-six adults, male and female, including normal health people, post-laryngectomy individuals and patients with digestive complaints without dysphagia were analyzed. The respiratory air flux interruptions produced by wet requested swallows and dry, requested and spontaneous swallows, were registered using thermo and piezoelectric receptors coupled to synectics medical manometry equipment, using Polygram upper 4.21 software. The results were analyzed with the Chi-square (3x2) and (2x2) nonparametric independency test with P = 0.05. RESULTS: Swallowing apnea is a preventive breathing stop that start just before and stay present during all deglutition pharyngeal phase. It is a well coordinated phenomena that occur as pattern in association with low elastic resistance of the lung, on the expiratory final phase until inspiration initial phase. This breathing stoppage it is usually followed by a short expiration preceding a new breathing cycle. The swallow apnea and vocal folds closure are both independent mechanisms. CONCLUSION: It is possible to suppose that in the subconscious condition, swallowing apnea is integrated under coordination of the same control mechanism that also involves the elastic resistance of the lung. |
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Authors:
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Milton Melciades Barbosa Costa; Eponina Maria de Oliveira Lemme |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Arquivos de gastroenterologia Volume: 47 ISSN: 1678-4219 ISO Abbreviation: Arq Gastroenterol Publication Date: 2010 Jan-Mar |
Date Detail:
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Created Date: 2010-06-03 Completed Date: 2010-12-03 Revised Date: 2012-01-17 |
Medline Journal Info:
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Nlm Unique ID: 15310600R Medline TA: Arq Gastroenterol Country: Brazil |
Other Details:
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Languages: eng Pagination: 42-8 Citation Subset: IM |
Affiliation:
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Laboratório de Motilidade Digestiva, Departamento de Anatomia, Instituto de Ciências Biomédicas, Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, RJ, Brazil. mcosta@acd.ufrj.br |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Adult Aged Aged, 80 and over Apnea Deglutition / physiology* Female Humans Laryngectomy Male Manometry Middle Aged Respiratory Mechanics / physiology* Vocal Cords / physiology* Young Adult |
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