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High-speed treadmill videoendoscopic examination of the upper respiratory tract in the horse: the results of 291 clinical cases.
Vet J. 2005 Sep; 170(2):243-8.VJ

Abstract

The purpose of the study was to describe the prevalence of upper airway abnormalities and establish if any significant associations existed between study variables and the two most frequently identified disorders; axial deviation of the aryepiglottic folds and dorsal displacement of the soft palate. The clinical records and video-recordings of all horses referred for upper respiratory tract evaluation during high-speed treadmill videoendoscopy between November 1997 and September 2003 were reviewed. Of 291 horses included in the study, 265 underwent resting endoscopy and 42% (112/265) had a recognised abnormality. More than one abnormality was identified in 49% of horses. In general, horses referred specifically for evaluation of a respiratory tract noise were more likely to have an abnormality detected during exercise than those referred for high-speed treadmill videoendoscopy for poor performance (82% versus 49%). Axial deviation of the aryepiglottic folds (105/192, 55%) was the most common abnormality identified, followed by dorsal displacement of the soft palate (74/192, 39%) and idiopathic left laryngeal hemiplegia (65/192, 34%). Other abnormalities identified included arytenoid collapse, vocal fold collapse, dynamic pharyngeal collapse, epiglottic fold entrapment, epiglottic retroversion, rostral displacement of the palatopharyngeal arch and right laryngeal hemiplegia. In horses with axial deviation of the aryepiglottic folds there was a significant association between the increasing severity of the deviation and the increasing number of abnormalities detected. There were no other associations found. High-speed treadmill videoendoscopy is an important component of the evaluation of poor performance, particularly in horses with a history of respiratory noise. The occurrence of multiple abnormalities in a large proportion of horses suggests that high-speed treadmill videoendoscopy should be recommended, where possible, to make an accurate diagnosis, advise on appropriate treatment options and provide a prognosis for affected horses.

Authors+Show Affiliations

University Veterinary Centre Camden, Faculty of Veterinary Science, The University of Sydney, Werombi Road, Camden, New South Wales, 2570, Australia.No affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article

Language

eng

PubMed ID

16129344

Citation

Tan, Rachel H H., et al. "High-speed Treadmill Videoendoscopic Examination of the Upper Respiratory Tract in the Horse: the Results of 291 Clinical Cases." Veterinary Journal (London, England : 1997), vol. 170, no. 2, 2005, pp. 243-8.
Tan RH, Dowling BA, Dart AJ. High-speed treadmill videoendoscopic examination of the upper respiratory tract in the horse: the results of 291 clinical cases. Vet J. 2005;170(2):243-8.
Tan, R. H., Dowling, B. A., & Dart, A. J. (2005). High-speed treadmill videoendoscopic examination of the upper respiratory tract in the horse: the results of 291 clinical cases. Veterinary Journal (London, England : 1997), 170(2), 243-8.
Tan RH, Dowling BA, Dart AJ. High-speed Treadmill Videoendoscopic Examination of the Upper Respiratory Tract in the Horse: the Results of 291 Clinical Cases. Vet J. 2005;170(2):243-8. PubMed PMID: 16129344.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - High-speed treadmill videoendoscopic examination of the upper respiratory tract in the horse: the results of 291 clinical cases. AU - Tan,Rachel H H, AU - Dowling,Bradley A, AU - Dart,Andrew J, Y1 - 2004/09/25/ PY - 2004/06/28/accepted PY - 2005/9/1/pubmed PY - 2005/11/1/medline PY - 2005/9/1/entrez SP - 243 EP - 8 JF - Veterinary journal (London, England : 1997) JO - Vet J VL - 170 IS - 2 N2 - The purpose of the study was to describe the prevalence of upper airway abnormalities and establish if any significant associations existed between study variables and the two most frequently identified disorders; axial deviation of the aryepiglottic folds and dorsal displacement of the soft palate. The clinical records and video-recordings of all horses referred for upper respiratory tract evaluation during high-speed treadmill videoendoscopy between November 1997 and September 2003 were reviewed. Of 291 horses included in the study, 265 underwent resting endoscopy and 42% (112/265) had a recognised abnormality. More than one abnormality was identified in 49% of horses. In general, horses referred specifically for evaluation of a respiratory tract noise were more likely to have an abnormality detected during exercise than those referred for high-speed treadmill videoendoscopy for poor performance (82% versus 49%). Axial deviation of the aryepiglottic folds (105/192, 55%) was the most common abnormality identified, followed by dorsal displacement of the soft palate (74/192, 39%) and idiopathic left laryngeal hemiplegia (65/192, 34%). Other abnormalities identified included arytenoid collapse, vocal fold collapse, dynamic pharyngeal collapse, epiglottic fold entrapment, epiglottic retroversion, rostral displacement of the palatopharyngeal arch and right laryngeal hemiplegia. In horses with axial deviation of the aryepiglottic folds there was a significant association between the increasing severity of the deviation and the increasing number of abnormalities detected. There were no other associations found. High-speed treadmill videoendoscopy is an important component of the evaluation of poor performance, particularly in horses with a history of respiratory noise. The occurrence of multiple abnormalities in a large proportion of horses suggests that high-speed treadmill videoendoscopy should be recommended, where possible, to make an accurate diagnosis, advise on appropriate treatment options and provide a prognosis for affected horses. SN - 1090-0233 UR - https://www.unboundmedicine.com/medline/citation/16129344/High_speed_treadmill_videoendoscopic_examination_of_the_upper_respiratory_tract_in_the_horse:_the_results_of_291_clinical_cases_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S1090-0233(04)00164-9 DB - PRIME DP - Unbound Medicine ER -