Delayed onset vagus nerve paralysis after occipital condyle fracture in a horse

Autor: Tamara Martin‐Giménez, Antonio M. Cruz, Agustín Barragán, Estefanía Montero, Pedro G. Sanchez, Guillermo Caballero, Ignacio Corradini
Jazyk: angličtina
Rok vydání: 2019
Předmět:
Zdroj: Journal of Veterinary Internal Medicine, Vol 33, Iss 6, Pp 2780-2785 (2019)
Druh dokumentu: article
ISSN: 1939-1676
0891-6640
DOI: 10.1111/jvim.15581
Popis: Abstract Occipital condylar fractures (OCFs) causing delayed onset lower cranial nerve paralysis (LCNPs) are rare. We present a 7‐year‐old Friesian horse with delayed onset dysphagia caused by vagus nerve (CNX) paralysis and suspicion of glossopharyngeal nerve (CNIX) paralysis developed several days after a minor head injury. Endoscopic examination revealed right laryngeal hemiplegia and intermittent dorsal displacement of the soft palate. An area of submucosal hemorrhage and bulging was appreciated over the dorsal aspect of the medial compartment of the right guttural pouch. Radiological examination of the proximal cervical region showed rotation of the atlas and the presence of a large bone fragment dorsal to the guttural pouches. Occipital condyle fracture with delayed onset cranial nerve paralysis was diagnosed. Delayed onset cranial nerve paralysis causing dysphagia might be a distinguishable sign of OCF in horses. Delayed onset dysphagia after head injury should prompt equine clinicians to evaluate the condition of the atlanto‐occipital articulation and skull base.
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