Prevalence of upper respiratory tract disorders detected with a flexible videoendoscope in thoroughbred racehorses.
Abstract: A total of 350 thoroughbred racehorses found clinically as having coughs or abnormal breath sounds underwent endoscopic examination of the upper respiratory tract at rest. As a result, abnormal endoscopic findings were obtained in all horses, demonstrating that thoroughbred racehorses with a clinical abnormality in the respiratory system necessarily had disorders in the upper respiratory tract. Whereas 11 types of disorder were observed, a combination of three different types of disorder were found in the highest frequencies in 3-, 4- and 5-year-old horses (27.8%, 29.2% and 29.7%, respectively). Among 6-year-olds or older horses, those having only one type of disorder accounted for the greatest proportion (47.6%). The prevalence of pharyngeal lymphoid hyperplasia or abnormalities of the epiglottis decreased with age.
Publication Date: 1995-06-01 PubMed ID: 7548390DOI: 10.1292/jvms.57.409Google Scholar: Lookup
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- Comparative Study
- Journal Article
Summary
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The research article investigates the prevalence of upper respiratory tract disorders in thoroughbred racehorses showing clinical symptoms such as coughs or abnormal breathing. The study employed a flexible videoendoscope and found all tested horses had some form of upper respiratory tract disorder, with the prevalence of certain disorders decreasing with age.
Objective and Methodology
- The research article aimed to identify the prevalence of upper respiratory tract disorders in thoroughbred racehorses exhibiting clinical signs of respiratory, such as coughing or abnormal breathing.
- To do so, the researchers conducted endoscopic examinations of the upper respiratory tract in 350 thoroughbred racehorses at rest. A flexible videoendoscope was used for these examinations.
Research Findings
- Abnormal endoscopic findings were obtained in all horses examined. This indicated that all thoroughbred racehorses that were clinically abnormal in their respiratory system necessarily had upper respiratory tract disorders.
- Out these horses, 11 different types of respiratory disorders were identified. However, a combination of three specific disorders was found to be the most common, especially among the 3-, 4- and 5-year-old horses. In these age groups, the combination disorder was found in 27.8%, 29.2% and 29.7% of horses, respectively.
Variation with Age
- In horses that were 6 years old or older, it was found that those having only one type of disorder made up the largest proportion at 47.6%. This indicates a shift in the pattern of disorders as the horses age.
- The prevalence of two specific disorders, namely pharyngeal lymphoid hyperplasia and abnormalities of the epiglottis, was found to decrease with age. This demonstrates a correlation between horse age and the prevalence of these specific respiratory disorders.
Implications
- Based on the study’s findings, endoscopic examination can be used as a reliable tool in detecting upper respiratory tract disorders in racehorses, further aiding in accurate diagnoses and treatment planning.
- The commonality of respiratory disorders in racehorses points to a potentially significant health issue and may warrant further investigation and preventative actions across the equine industry.
Cite This Article
APA
Hobo S, Matsuda Y, Yoshida K.
(1995).
Prevalence of upper respiratory tract disorders detected with a flexible videoendoscope in thoroughbred racehorses.
J Vet Med Sci, 57(3), 409-413.
https://doi.org/10.1292/jvms.57.409 Publication
Researcher Affiliations
- Equine Research Institute, Japan Racing Association, Tokyo.
MeSH Terms
- Animals
- Bronchoscopy / veterinary
- Cough
- Epiglottis / pathology
- Epiglottis / physiopathology
- Female
- Horse Diseases / epidemiology
- Horses
- Male
- Orchiectomy
- Prevalence
- Respiratory Sounds
- Respiratory Tract Diseases / epidemiology
- Respiratory Tract Diseases / veterinary
- Sex Characteristics
- Video Recording
Citations
This article has been cited 4 times.- Lo Feudo CM, Stucchi L, Conturba B, Stancari G, Ferrucci F. Impact of Lower Airway Inflammation on Fitness Parameters in Standardbred Racehorses.. Animals (Basel) 2022 Nov 21;12(22).
- Lo Feudo CM, Stancari G, Collavo F, Stucchi L, Conturba B, Zucca E, Ferrucci F. Upper and Lower Airways Evaluation and Its Relationship with Dynamic Upper Airway Obstruction in Racehorses.. Animals (Basel) 2022 Jun 17;12(12).
- Lo Feudo CM, Stucchi L, Alberti E, Stancari G, Conturba B, Zucca E, Ferrucci F. The Role of Thoracic Ultrasonography and Airway Endoscopy in the Diagnosis of Equine Asthma and Exercise-Induced Pulmonary Hemorrhage.. Vet Sci 2021 Nov 15;8(11).
- Kusano K, Hobo S, Ode H, Ishikawa Y. Tracheal Endoscopic and Cytological Findings and Blood Examination Results in Thoroughbred Racehorses Suspected to have Lower Respiratory Tract Disease.. J Equine Sci 2008;19(4):97-102.
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