Race performance following epiglottic entrapment surgery in Thoroughbred yearlings.
Authors: Curtiss A L, Aceto H, Embertson R M
Journal: Equine veterinary journal
Summary
# Editorial Summary: Epiglottic Entrapment Surgery in Thoroughbred Yearlings Epiglottic entrapment remains a recognised upper airway condition in young Thoroughbreds, yet long-term racing outcomes following surgical intervention had not been systematically evaluated. Curtiss and colleagues conducted a retrospective analysis of 66 surgically treated yearlings from a single equine hospital (1989–2014), comparing their subsequent racing records with untreated maternal half-siblings and examining which clinical variables predicted failure to race post-operatively. Reassuringly, 70% of treated horses raced compared to 70.8% of the untreated cohort, with no significant differences in racing frequency or earnings between groups; however, the presence of concurrent abnormal right arytenoid movement at the time of entrapment diagnosis substantially reduced odds of racing post-surgery (odds ratio 15.40), suggesting this combination represents a more complex airway pathology. Notably, females were disproportionately affected (71% of cases), a finding warranting further investigation. For practitioners, this work indicates that surgical correction of isolated epiglottic entrapment in yearlings carries a favourable prognosis for subsequent race performance, although careful pre-operative endoscopic assessment of concurrent arytenoid dysfunction is essential for prognostic counselling.
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Practical Takeaways
- •Surgical correction of epiglottic entrapment in yearlings does not impair future race performance compared to untreated horses, supporting the value of intervention
- •Presence of concurrent abnormal right arytenoid movement is a significant risk factor for post-operative racing failure and should influence prognostic counselling
- •Female Thoroughbreds should be monitored more closely for epiglottic entrapment given their higher prevalence
Key Findings
- •70% of surgically treated yearlings raced post-operatively, similar to 70.8% of untreated maternal half-siblings (P=0.9)
- •Treated horses showed no differences in racing performance variables (starts, earnings, career longevity) compared to untreated cohort
- •Epiglottic entrapment with abnormal right arytenoid movement was associated with significantly reduced odds of racing post-operatively (OR 15.40, 95% CI 1.64-144.23)
- •Female Thoroughbreds were more frequently affected by epiglottic entrapment than males (47/66 vs 19/66, P<0.001)