Obstruction des VRS d'origine neurologique
Neurologic diseases causing upper respiratory tract obstructions in horses

Bilateral Laryngeal Paralysis
Horse vets are very familiar with left sided recurrent laryngeal neuropathy: indeed, our evidence suggests that most if not all large breed horses have some degree of left sided neuropathy. Further, the most severely affected horses have histological evidence of right sided disease. Despite this, clinically-relevant right sided laryngeal neuropathy that presents in combination with left sided signs is rare. In this presentation, I will present the clinical data and investigation of outbreaks of bilateral recurrent laryngeal neuropathy that occurred in 2016 in the UK, involving 10s to 100s of horses.

In the spring of 2016, 2 groups of horses in the south of England presented with varying degrees of bilateral laryngeal neuropathy. Signs of severe inspiratory stridor, pulmonary oedema, epistaxis, collapse and death occurred and signs were exacerbated by exercise, travel or anxiety. Endoscopy revealed partial or complete left and right sided arytenoid stasis, with variable pharyngeal collapse. Ultrasound revealed widespread intrinsic laryngeal muscle involvement, though not to the extent ...