Overground endoscopy in 311 Thoroughbred racehorses: findings and correlation to resting laryngeal function
Autor: | Raymond C. Boston, JA Davison, Benjamin J. Ahern, J. M. Lumsden |
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Rok vydání: | 2017 |
Předmět: |
Male
medicine.medical_specialty 040301 veterinary sciences 0403 veterinary science Correlation Physical Conditioning Animal medicine Animals Horses Respiratory system Retrospective Studies General Veterinary Soft palate medicine.diagnostic_test business.industry Incidence (epidemiology) 0402 animal and dairy science Endoscopy Arytenoid cartilage 04 agricultural and veterinary sciences General Medicine 040201 dairy & animal science Dorsal displacement Surgery medicine.anatomical_structure Anesthesia Female Horse Diseases Larynx Respiratory System Abnormalities Airway business |
Zdroj: | Australian Veterinary Journal. 95:338-342 |
ISSN: | 0005-0423 |
Popis: | Objective: To review a large number of equine overground endoscopy (OGE) examinations to determine the incidence of dynamic upper airway obstructions (DUAO); correlations were explored with laryngeal endoscopy findings at rest and abnormal exercising respiratory noise. Methods: Retrospective analysis of horses presenting for OGE because of perceived poor performance and/or history of abnormal exercising respiratory noise between 2010 and 2014. Signalment, history and examination findings during resting laryngeal endoscopy and OGE were reviewed. Results: Of the total examinations, 311 were reviewed. One or more DUAO were found in 249/311 horses. From 210 males (colts and geldings), 121 had arytenoid cartilage collapse (ACC) and 111 had vocal fold collapse (VFC). From 101 females, 25 had intermittent dorsal displacement of the soft palate (DDSP). Resting laryngeal function grade 4 was found in 121/311 of the study population and 92/210 of males. An association was found between horses with lower resting arytenoid abduction ability to dynamic ACC and higher resting arytenoid abduction ability with DDSP. Abnormal exercising respiratory noise was positively associated with the presence of DUAO. Conclusions: Multiple DUAO in association with abnormal exercising respiratory noise was a common finding in horses examined for poor performance. This study highlights the importance of OGE in accurately diagnosing the nature of DUAO associated with poor performance. |
Databáze: | OpenAIRE |
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