Using quarterly earnings to assess racing performance in 70 thoroughbreds after modified laryngoplasty for treatment of recurrent laryngeal neuropathy.
Abstract: To validate and then use quarterly earnings to assess racing performance of Thoroughbreds after modified laryngoplasty for treatment of recurrent laryngeal neuropathy Methods: Retrospective cohort study. Methods: Thoroughbred racehorses after modified laryngoplasty (N = 70), and untreated cohorts (N = 210). Methods: Medical (2005-2008) and race records of 70 Thoroughbred racehorses treated by modified laryngoplasty were reviewed. Postsurgery data were collated as the number of starts and the dollar race winnings for each quarter after the date of surgery. Comparisons were made to an untreated cohort population. Initial comparisons were made between subgroups of the untreated cohort to ensure that one randomly selected group of untreated horses would not differ significantly from another untreated group. Results: In the last race before surgery, treated horses performed significantly (P < .001) worse than untreated horses. When data were examined by quarter, with the exception of the first quarter after surgery, there were no significant differences in race starts or dollars earned between treated horses and untreated cohorts. All treated horses had at least 1 race after surgery and there was no difference in cumulative survival up to 40 races after surgery between treated and untreated groups Conclusions: Quarterly earnings can be used to provide a more detailed longitudinal assessment of a racehorse's performance. Horses treated by modified laryngoplasty for recurrent laryngeal neuropathy return to similar level of performance as their untreated cohorts by the second quarter after surgery, and continue to compete as long as their cohorts.
© Copyright 2012 by The American College of Veterinary Surgeons.
Publication Date: 2012-07-03 PubMed ID: 22759089DOI: 10.1111/j.1532-950X.2012.01017.xGoogle Scholar: Lookup
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Summary
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This study explores the validity of using quarterly earnings as a measure of racehorse performance, post-surgery. It found that Thoroughbreds who underwent a modified laryngoplasty for recurrent laryngeal neuropathy were able to return to their previous performance levels within two quarters of their surgery.
Understanding the Research’s Main Arguments
- Recurrent laryngeal neuropathy is a condition that affects Thoroughbred racehorses, and this study evaluates the race performance of horses after they received a modified laryngoplasty as a treatment.
- The research used retrospective data from both treated and untreated horses to compare their performance. The performance was measured by considering the number of races participated in and the earnings from them.
- Before surgery, the treated horses significantly underperformed compared to their untreated counterparts. However, apart from in the first quarter post-surgery, the treated horses didn’t show any significant differences in earnings and race starts from the untreated horses.
Findings of the Research
- All treated horses raced at least once after their surgery. There was no difference in survival up to 40 races post-surgery.
- By the second quarter after their surgery, horses who received the laryngoplasty were performing at the same level as those horses who hadn’t been treated.
- The study concludes that the use of quarterly earnings is a suitable method for assessing the long-term performance of racehorses. It also shows that the horses treated with laryngoplasty can successfully return to racing and perform at similar levels as their untreated counterparts.
Significance and Implications of the Research
- This study provides assurance to the equine industry that horses receiving a modified laryngoplasty can return to good competition levels, thus providing insight into the effectiveness of this specific surgical method.
- It validates the use of a practical, easily accessible method –the quarterly earnings– to measure a horse’s performance in races. This makes longitudinal studies, or long-term performance tracking of racehorses, more feasible.
Cite This Article
APA
Aceto H, Parente EJ.
(2012).
Using quarterly earnings to assess racing performance in 70 thoroughbreds after modified laryngoplasty for treatment of recurrent laryngeal neuropathy.
Vet Surg, 41(6), 689-695.
https://doi.org/10.1111/j.1532-950X.2012.01017.x Publication
Researcher Affiliations
- Department of Clinical Studies, University of Pennsylvania School of Veterinary Medicine, New Bolton Center, Kennett Square, PA, USA.
MeSH Terms
- Animals
- Cohort Studies
- Horse Diseases / surgery
- Horses
- Laryngeal Diseases / surgery
- Laryngeal Diseases / veterinary
- Larynx / surgery
- Retrospective Studies
- Running
- Sports / economics
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