Idiopathic facial paralysis in the dog. 1979

K G Braund, and P J Luttgen, and D C Sorjonen, and R W Redding

Facial nerve paralysis of acute onset is reported in seven mature dogs, five of which were cocker spaniels. The clinical signs were characterised by ear drooping, lip commissural paralysis, sialosis, and collection of food on the paralysed side of the mouth. All dogs showed absent menace responses and trigeminofacial/acousticofacial reflexes. Horner's syndrome was not present in any dog. In four dogs, bilateral facial paralysis developed. The facial paralysis was unrelated to otitis media. Electrodiagnostic studies revealed denervation potentials and absent evoked muscle potentials. Facial nerve biopsies from two cases showed nerve fibre degeneration and apparent loss of larger diameter myelinated fibres. The condition has been termed idiopathic facial paralysis since the aetiopathogenesis is presently unknown.

UI MeSH Term Description Entries
D008297 Male Males
D004283 Dog Diseases Diseases of the domestic dog (Canis familiaris). This term does not include diseases of wild dogs, WOLVES; FOXES; and other Canidae for which the heading CARNIVORA is used. Canine Diseases,Canine Disease,Disease, Canine,Disease, Dog,Diseases, Canine,Diseases, Dog,Dog Disease
D004285 Dogs The domestic dog, Canis familiaris, comprising about 400 breeds, of the carnivore family CANIDAE. They are worldwide in distribution and live in association with people. (Walker's Mammals of the World, 5th ed, p1065) Canis familiaris,Dog
D005158 Facial Paralysis Severe or complete loss of facial muscle motor function. This condition may result from central or peripheral lesions. Damage to CNS motor pathways from the cerebral cortex to the facial nuclei in the pons leads to facial weakness that generally spares the forehead muscles. FACIAL NERVE DISEASES generally results in generalized hemifacial weakness. NEUROMUSCULAR JUNCTION DISEASES and MUSCULAR DISEASES may also cause facial paralysis or paresis. Facial Palsy,Hemifacial Paralysis,Facial Palsy, Lower Motor Neuron,Facial Palsy, Upper Motor Neuron,Facial Paralysis, Central,Facial Paralysis, Peripheral,Facial Paresis,Lower Motor Neuron Facial Palsy,Upper Motor Neuron Facial Palsy,Central Facial Paralyses,Central Facial Paralysis,Facial Palsies,Facial Paralyses, Central,Facial Paralyses, Peripheral,Palsies, Facial,Palsy, Facial,Paralyses, Central Facial,Paralyses, Facial,Paralyses, Hemifacial,Paralysis, Central Facial,Paralysis, Facial,Paralysis, Hemifacial,Paralysis, Peripheral Facial,Pareses, Facial,Paresis, Facial,Peripheral Facial Paralysis
D005260 Female Females
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia

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