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Evaluation of upper respiratory tract function during strenuous exercise in racehorses.
J Am Vet Med Assoc. 1990 Feb 01; 196(3):431-8.JA

Abstract

Forty-six racehorses with a history of poor performance underwent endoscopic evaluation of laryngeal and pharyngeal function while exercising on a high-speed treadmill. This evaluation allowed the definitive diagnosis of intermittent or continual upper respiratory tract obstruction as a cause of poor performance, as well as the documentation of the dynamic functional anatomy of the obstruction. Ten of the horses (22%) were determined to have a functional abnormality of the upper respiratory tract. These abnormalities included epiglottic entrapment (1 horse), persistent dorsal displacement of the soft palate during exercise (4 horses), and left laryngeal hemiplegia (5 horses). Thirty-two horses were observed to have signs of left laryngeal hemiparesis (asynchronous arytenoid movement) at rest that did not impair full laryngeal abduction during strenuous exercise.

Authors+Show Affiliations

Department of Medicine, Tufts University School of Veterinary Medicine, North Grafton, MA 01536.No affiliation info available

Pub Type(s)

Journal Article

Language

eng

PubMed ID

2298672

Citation

Morris, E A., and H J. Seeherman. "Evaluation of Upper Respiratory Tract Function During Strenuous Exercise in Racehorses." Journal of the American Veterinary Medical Association, vol. 196, no. 3, 1990, pp. 431-8.
Morris EA, Seeherman HJ. Evaluation of upper respiratory tract function during strenuous exercise in racehorses. J Am Vet Med Assoc. 1990;196(3):431-8.
Morris, E. A., & Seeherman, H. J. (1990). Evaluation of upper respiratory tract function during strenuous exercise in racehorses. Journal of the American Veterinary Medical Association, 196(3), 431-8.
Morris EA, Seeherman HJ. Evaluation of Upper Respiratory Tract Function During Strenuous Exercise in Racehorses. J Am Vet Med Assoc. 1990 Feb 1;196(3):431-8. PubMed PMID: 2298672.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Evaluation of upper respiratory tract function during strenuous exercise in racehorses. AU - Morris,E A, AU - Seeherman,H J, PY - 1990/2/1/pubmed PY - 1990/2/1/medline PY - 1990/2/1/entrez SP - 431 EP - 8 JF - Journal of the American Veterinary Medical Association JO - J Am Vet Med Assoc VL - 196 IS - 3 N2 - Forty-six racehorses with a history of poor performance underwent endoscopic evaluation of laryngeal and pharyngeal function while exercising on a high-speed treadmill. This evaluation allowed the definitive diagnosis of intermittent or continual upper respiratory tract obstruction as a cause of poor performance, as well as the documentation of the dynamic functional anatomy of the obstruction. Ten of the horses (22%) were determined to have a functional abnormality of the upper respiratory tract. These abnormalities included epiglottic entrapment (1 horse), persistent dorsal displacement of the soft palate during exercise (4 horses), and left laryngeal hemiplegia (5 horses). Thirty-two horses were observed to have signs of left laryngeal hemiparesis (asynchronous arytenoid movement) at rest that did not impair full laryngeal abduction during strenuous exercise. SN - 0003-1488 UR - https://www.unboundmedicine.com/medline/citation/2298672/Evaluation_of_upper_respiratory_tract_function_during_strenuous_exercise_in_racehorses_ DB - PRIME DP - Unbound Medicine ER -