Dynamic respiratory endoscopy without treadmill in 68 performance Standardbred, Thoroughbred and saddle horses under natural training conditions.
Authors: Desmaizieres L-M, Serraud N, Plainfosse B, Michel A, Tamzali Y
Journal: Equine veterinary journal
Summary
# Editorial Summary Whilst high-speed treadmill endoscopy remains the gold standard for diagnosing dynamic upper respiratory tract obstructions, the equipment and facilities required limit accessibility for many practitioners; this study evaluated whether portable endoscopic systems could reliably assess respiratory dysfunction during ridden exercise under natural field conditions. Sixty-eight performance horses (Standardbreds, Thoroughbreds and saddle horses) underwent dynamic respiratory endoscopy using on-board equipment whilst exercised at various intensities in their typical training environments, with findings compared to standard treadmill protocols where available. The researchers successfully captured dynamic collapse patterns and airway obstruction events during ridden work, demonstrating that field-based endoscopy could identify conditions such as laryngeal hemiplegia and other dynamic obstructions without requiring access to treadmill facilities. This approach offers significant practical advantages for busy practitioners and field-based investigations, though interpretation requires careful attention to exercise intensity and gait consistency, which may be more variable than controlled treadmill conditions. For equine professionals, particularly those in rural settings or managing competition horses on-site, portable dynamic endoscopy represents a viable diagnostic tool that brings respiratory assessment closer to natural performance conditions, though should complement rather than entirely replace treadmill evaluation in complex or inconclusive cases.
Read the full abstract on PubMed
Practical Takeaways
- •On-board endoscopy allows diagnosis of dynamic airway obstruction during real training conditions, potentially capturing collapse patterns that treadmill exercise may not reproduce
- •This portable technology increases accessibility of dynamic respiratory assessment to equine practices without access to specialized treadmill facilities
- •Performance horses can be evaluated for upper respiratory dysfunction in their natural working environment, improving clinical relevance of findings
Key Findings
- •On-board endoscopy without treadmill can assess dynamic upper respiratory tract obstructions in 68 performance horses under natural training conditions
- •Study demonstrates feasibility of exercising endoscopy using portable equipment outside of treadmill laboratory settings
- •Dynamic respiratory assessment possible in Standardbred, Thoroughbred and saddle horses during actual training rather than simulated treadmill conditions