Journal article
Bar shoes and ambient temperature are risk factors for exercise-induced pulmonary haemorrhage in Thoroughbred racehorses
Equine Veterinary Journal, Vol.48(4), pp.438-441
2016
Abstract
Reasons for performing study
Ambient temperature has been identified as a risk factor for exercise-induced pulmonary haemorrhage (EIPH) in racing Thoroughbreds. This warranted a more expansive investigation of climatic conditions on the incidence and severity of EIPH. The impact of other variables such as the type of bit used, tongue ties and nonstandard shoes has not been reported and also warrant investigation.
Objectives
To examine the effect of various climatic variables as contributing risk factors for EIPH. Other previously uninvestigated variables as well as standard track and population factors will also be examined.
Study design
Cross-sectional study.
Methods
Thoroughbred racehorses competing at metropolitan racetracks in Perth, Western Australia were examined 30–200 min post race with tracheobronchoscopy. Examination took place at 48 race meetings over a 12 month period. Examinations were graded (0–4), independently by two experienced veterinarians. Univariable analyses were performed and variables with a P<0.25 were entered into a multivariable logistic regression analysis. The analysis was performed twice using the presence of blood (EIPH grade 0 vs. grades ≥1) and EIPH grades ≤1 vs. EIPH grades ≥2 as dependent variables.
Results
Exercise-induced pulmonary haemorrhage was diagnosed in 56.6% of observations. Lower ambient temperature was significantly associated with EIPH grades ≥1 (OR 0.95; 95% CI 0.93–0.98) and EIPH grades ≥2 (OR 0.97; 95% CI 0.94–1.0). Bar shoes were significantly associated with EIPH grades ≥1 (OR 6.35; 95% CI 2.17–18.54) and EIPH grades ≥2 (OR 2.72; 95% CI 1.3–5.68). Increasing race distance was significantly associated with EIPH grade ≥1 and increasing lifetime starts was significantly associated with EIPH grade ≥2.
Conclusions
Ambient temperature is a risk factor for EIPH in Thoroughbred racehorses, with lower temperatures associated with increased risk. Bar shoes are a novel risk factor for EIPH in this population.
Details
- Title
- Bar shoes and ambient temperature are risk factors for exercise-induced pulmonary haemorrhage in Thoroughbred racehorses
- Authors/Creators
- E.J. Crispe (Author/Creator)G.D. Lester (Author/Creator)I.D. Robertson (Author/Creator)C.J. Secombe (Author/Creator)
- Publication Details
- Equine Veterinary Journal, Vol.48(4), pp.438-441
- Publisher
- Equine Veterinary Journal Ltd.
- Identifiers
- 991005543935307891
- Copyright
- © 2015 EVJ Ltd
- Murdoch Affiliation
- School of Veterinary and Life Sciences
- Language
- English
- Resource Type
- Journal article
UN Sustainable Development Goals (SDGs)
This output has contributed to the advancement of the following goals:
Source: InCites
Metrics
178 File views/ downloads
131 Record Views
InCites Highlights
These are selected metrics from InCites Benchmarking & Analytics tool, related to this output
- Citation topics
- 3 Agriculture, Environment & Ecology
- 3.232 Veterinary Sciences
- 3.232.2141 Equine Respiratory Disorders
- Web Of Science research areas
- Veterinary Sciences
- ESI research areas
- Plant & Animal Science