| Incidence of swallowing during exercise in horses with dorsal displacement of the soft palate. | |
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MedLine Citation:
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PMID: 21039804 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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REASONS FOR PERFORMING STUDY: The relationship between dorsal displacement of the soft palate (DDSP) and swallowing is unclear. OBJECTIVE: To quantify the relationship between DDSP and swallowing in horses at exercise. HYPOTHESES: The frequency of swallowing increases immediately prior to DDSP in horses at exercise. METHODS: Videoendoscopic and upper airway pressure data were collated from horses with a definitive diagnosis of DDSP at exercise. Horses with no upper airway abnormalities were matched by age, breed and sex and used as controls. Sixty-nine horses were identified with a definitive diagnosis of DDSP during the study interval. Airway pressure data were available for 42 horses. RESULTS: The majority of horses displaced at high exercising speeds while accelerating; a smaller number displaced during deceleration after peak speed had been reached. Horses swallowed significantly more frequently in the 1 min immediately preceding DDSP than in the control horses at equivalent speeds. DDSP at exercise results in a significant increase in tracheal expiratory pressure, a significant decrease in pharyngeal expiratory pressure and a significantly less negative pharyngeal inspiratory pressure compared to matched controls and compared to the pressures during the 1 min interval prior to DDSP. There was no significant difference between any measure of airway pressure before or after a swallow when examined at each time interval in the DDSP population. CONCLUSIONS: The frequency of swallowing decreases with increasing speed in normal horses. In contrast, the frequency of swallowing increases immediately prior to onset of DDSP. This is not a result of pharyngeal and tracheal pressure changes. Potential relevance: The increased frequency of swallowing observed prior to DDSP may be related to the aetiology of the disease. |
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Authors:
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J H Pigott; N G Ducharme; L M Mitchell; L V Soderholm; J Cheetham |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Equine veterinary journal Volume: 42 ISSN: 0425-1644 ISO Abbreviation: Equine Vet. J. Publication Date: 2010 Nov |
Date Detail:
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Created Date: 2010-11-02 Completed Date: 2010-12-14 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0173320 Medline TA: Equine Vet J Country: England |
Other Details:
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Languages: eng Pagination: 732-7 Citation Subset: IM |
Copyright Information:
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© 2010 EVJ Ltd. |
Affiliation:
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Department of Clinical Sciences, Cornell University, NY, USA. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Airway Obstruction
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veterinary* Airway Resistance / physiology Animals Deglutition / physiology* Endoscopy / veterinary Female Horse Diseases / pathology, physiopathology* Horses Male Palate, Soft / abnormalities*, pathology Physical Exertion / physiology Videotape Recording |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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