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Incidence of swallowing during exercise in horses with dorsal displacement of the soft palate
Summary 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 DD...
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Published in: | Equine veterinary journal 2010-11, Vol.42 (8), p.732-737 |
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creator | Pigott, J.H Ducharme, N.G Mitchell, L.M Soderholm, L.V Cheetham, J |
description | Summary
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. |
doi_str_mv | 10.1111/j.2042-3306.2010.00116.x |
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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.</description><identifier>ISSN: 0425-1644</identifier><identifier>EISSN: 2042-3306</identifier><identifier>DOI: 10.1111/j.2042-3306.2010.00116.x</identifier><identifier>PMID: 21039804</identifier><language>eng</language><publisher>Oxford, UK: Blackwell Publishing Ltd</publisher><subject>Airway Obstruction - veterinary ; Airway Resistance - physiology ; Animals ; controlled ; deglutition ; Deglutition - physiology ; digestive system diseases ; disease diagnosis ; dorsal displacement ; dorsal displacement of the soft palate ; Endoscopy - veterinary ; Female ; frequency ; horse ; horse diseases ; Horse Diseases - pathology ; Horse Diseases - physiopathology ; Horses ; Male ; palate ; Palate, Soft - abnormalities ; Palate, Soft - pathology ; physical activity ; Physical Exertion - physiology ; pressure ; swallow ; Videotape Recording</subject><ispartof>Equine veterinary journal, 2010-11, Vol.42 (8), p.732-737</ispartof><rights>2010 EVJ Ltd</rights><rights>2010 EVJ Ltd.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c4296-d933672fa1530583c4dd2c0d48df116d3d070cc9c179404728a4f7066359b55b3</citedby><cites>FETCH-LOGICAL-c4296-d933672fa1530583c4dd2c0d48df116d3d070cc9c179404728a4f7066359b55b3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,27924,27925</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/21039804$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Pigott, J.H</creatorcontrib><creatorcontrib>Ducharme, N.G</creatorcontrib><creatorcontrib>Mitchell, L.M</creatorcontrib><creatorcontrib>Soderholm, L.V</creatorcontrib><creatorcontrib>Cheetham, J</creatorcontrib><title>Incidence of swallowing during exercise in horses with dorsal displacement of the soft palate</title><title>Equine veterinary journal</title><addtitle>Equine Vet J</addtitle><description>Summary
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.</description><subject>Airway Obstruction - veterinary</subject><subject>Airway Resistance - physiology</subject><subject>Animals</subject><subject>controlled</subject><subject>deglutition</subject><subject>Deglutition - physiology</subject><subject>digestive system diseases</subject><subject>disease diagnosis</subject><subject>dorsal displacement</subject><subject>dorsal displacement of the soft palate</subject><subject>Endoscopy - veterinary</subject><subject>Female</subject><subject>frequency</subject><subject>horse</subject><subject>horse diseases</subject><subject>Horse Diseases - pathology</subject><subject>Horse Diseases - physiopathology</subject><subject>Horses</subject><subject>Male</subject><subject>palate</subject><subject>Palate, Soft - abnormalities</subject><subject>Palate, Soft - pathology</subject><subject>physical activity</subject><subject>Physical Exertion - physiology</subject><subject>pressure</subject><subject>swallow</subject><subject>Videotape Recording</subject><issn>0425-1644</issn><issn>2042-3306</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2010</creationdate><recordtype>article</recordtype><recordid>eNqNkF9v0zAUxS0EYmXwFcBvPKVc_4mdSLygaYxNU3lgYwgJWa59s7qkSWenavftccjoM365R_bvnCsfQiiDOcvnw3rOQfJCCFBZ5VsAxtT88IzMjg_PySzLsmBKyhPyKqU1gBBc8pfkhDMQdQVyRn5ddi547BzSvqFpb9u234funvpdHAceMLqQkIaOrvqYMNF9GFbUZ21b6kPattbhBrthDBhWSFPfDHRrWzvga_KisW3CN0_zlNx-Pr85-1Jcf724PPt0XTjJa1X4WgileWNZKaCshJPecwdeVr7J__LCgwbnasd0LUFqXlnZaFBKlPWyLJfilLyfcrexf9hhGswmJIdtazvsd8loxXklldaZrCbSxT6liI3ZxrCx8dEwMGO3Zm3GCs1YoRm7NX-7NYdsffu0ZLfcoD8a_5WZgY8TsA8tPv53sDn_fpVFtheTPaQBD0e7jb-N0kKX5m5xYeDuZvHjJ1uYq8y_m_jG9sbex5DM7bccLIDVHASrxR8K1Z9R</recordid><startdate>201011</startdate><enddate>201011</enddate><creator>Pigott, J.H</creator><creator>Ducharme, N.G</creator><creator>Mitchell, L.M</creator><creator>Soderholm, L.V</creator><creator>Cheetham, J</creator><general>Blackwell Publishing Ltd</general><scope>FBQ</scope><scope>BSCLL</scope><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope></search><sort><creationdate>201011</creationdate><title>Incidence of swallowing during exercise in horses with dorsal displacement of the soft palate</title><author>Pigott, J.H ; Ducharme, N.G ; Mitchell, L.M ; Soderholm, L.V ; Cheetham, J</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c4296-d933672fa1530583c4dd2c0d48df116d3d070cc9c179404728a4f7066359b55b3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2010</creationdate><topic>Airway Obstruction - veterinary</topic><topic>Airway Resistance - physiology</topic><topic>Animals</topic><topic>controlled</topic><topic>deglutition</topic><topic>Deglutition - physiology</topic><topic>digestive system diseases</topic><topic>disease diagnosis</topic><topic>dorsal displacement</topic><topic>dorsal displacement of the soft palate</topic><topic>Endoscopy - veterinary</topic><topic>Female</topic><topic>frequency</topic><topic>horse</topic><topic>horse diseases</topic><topic>Horse Diseases - pathology</topic><topic>Horse Diseases - physiopathology</topic><topic>Horses</topic><topic>Male</topic><topic>palate</topic><topic>Palate, Soft - abnormalities</topic><topic>Palate, Soft - pathology</topic><topic>physical activity</topic><topic>Physical Exertion - physiology</topic><topic>pressure</topic><topic>swallow</topic><topic>Videotape Recording</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Pigott, J.H</creatorcontrib><creatorcontrib>Ducharme, N.G</creatorcontrib><creatorcontrib>Mitchell, L.M</creatorcontrib><creatorcontrib>Soderholm, L.V</creatorcontrib><creatorcontrib>Cheetham, J</creatorcontrib><collection>AGRIS</collection><collection>Istex</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><jtitle>Equine veterinary journal</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Pigott, J.H</au><au>Ducharme, N.G</au><au>Mitchell, L.M</au><au>Soderholm, L.V</au><au>Cheetham, J</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Incidence of swallowing during exercise in horses with dorsal displacement of the soft palate</atitle><jtitle>Equine veterinary journal</jtitle><addtitle>Equine Vet J</addtitle><date>2010-11</date><risdate>2010</risdate><volume>42</volume><issue>8</issue><spage>732</spage><epage>737</epage><pages>732-737</pages><issn>0425-1644</issn><eissn>2042-3306</eissn><abstract>Summary
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.</abstract><cop>Oxford, UK</cop><pub>Blackwell Publishing Ltd</pub><pmid>21039804</pmid><doi>10.1111/j.2042-3306.2010.00116.x</doi><tpages>6</tpages></addata></record> |
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subjects | Airway Obstruction - veterinary Airway Resistance - physiology Animals controlled deglutition Deglutition - physiology digestive system diseases disease diagnosis dorsal displacement dorsal displacement of the soft palate Endoscopy - veterinary Female frequency horse horse diseases Horse Diseases - pathology Horse Diseases - physiopathology Horses Male palate Palate, Soft - abnormalities Palate, Soft - pathology physical activity Physical Exertion - physiology pressure swallow Videotape Recording |
title | Incidence of swallowing during exercise in horses with dorsal displacement of the soft palate |
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