The medical records of 29 dogs unable to close their mouths due to flaccid paralysis or paresis of the muscles innervated by the mandibular branch of the trigeminal nerve, were reviewed. Idiopathic trigeminal neuropathy was diagnosed in 26 dogs based on complete resolution of clinical signs and lack of any long-term neurological disease. Of these dogs, golden retrievers were over-represented. No age, sex, or seasonal predispositions were identified. Trigeminal sensory innervation deficits were observed in 35% (9/26), facial nerve deficits were observed in 8% (2/26), and Horner’s syndrome was observed in 8% (2/26) of dogs. Electromyographic examination of the muscles of mastication revealed abnormalities in seven of nine dogs. Results of cerebrospinal fluid analysis were abnormal in seven of eight dogs. Corticosteroid therapy did not affect the clinical course of the disease. Mean time to recovery was 22 days. Lymphosarcoma, Neospora caninum infection, and severe polyneuritis of unknown origin were diagnosed in three of 29 dogs at necropsy.
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May/June 2002
Neurology|
May 01 2002
Trigeminal Neuropathy in Dogs: A Retrospective Study of 29 Cases (1991–2000)
Philipp D. Mayhew, BVM&S, MRCVS;
Philipp D. Mayhew, BVM&S, MRCVS
Department of Clinical Studies, School of Veterinary Medicine, The University of Pennsylvania, 3900 Delancey Street, Philadelphia, Pennsylvania 19104-6010
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William W. Bush, VMD;
William W. Bush, VMD
Department of Clinical Studies, School of Veterinary Medicine, The University of Pennsylvania, 3900 Delancey Street, Philadelphia, Pennsylvania 19104-6010
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Eric N. Glass, MS, DVM, Diplomate ACVIM (Neurology)
Eric N. Glass, MS, DVM, Diplomate ACVIM (Neurology)
Department of Clinical Studies, School of Veterinary Medicine, The University of Pennsylvania, 3900 Delancey Street, Philadelphia, Pennsylvania 19104-6010
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J Am Anim Hosp Assoc (2002) 38 (3): 262–270.
Citation
Philipp D. Mayhew, William W. Bush, Eric N. Glass; Trigeminal Neuropathy in Dogs: A Retrospective Study of 29 Cases (1991–2000). J Am Anim Hosp Assoc 1 May 2002; 38 (3): 262–270. doi: https://doi.org/10.5326/0380262
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