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Idiopathic Postganglionic Horner's Syndrome in Dogs : 3 cases  

Kim, Se-Eun (Department of Veterinary Surgery and Ophthalmology, College of Veterinary Medicine and BK21 Program for Veterinary Science, Seoul National University)
Park, Shin-Ae (Department of Veterinary Surgery and Ophthalmology, College of Veterinary Medicine and BK21 Program for Veterinary Science, Seoul National University)
Jeong, Man-Bok (Department of Veterinary Surgery and Ophthalmology, College of Veterinary Medicine and BK21 Program for Veterinary Science, Seoul National University)
Yi, Na-Young (Department of Veterinary Surgery and Ophthalmology, College of Veterinary Medicine and BK21 Program for Veterinary Science, Seoul National University)
Kim, Won-Tae (Department of Veterinary Surgery and Ophthalmology, College of Veterinary Medicine and BK21 Program for Veterinary Science, Seoul National University)
Chae, Je-Min (Department of Veterinary Surgery and Ophthalmology, College of Veterinary Medicine and BK21 Program for Veterinary Science, Seoul National University)
Seo, Kang-Moon (Department of Veterinary Surgery and Ophthalmology, College of Veterinary Medicine and BK21 Program for Veterinary Science, Seoul National University)
Publication Information
Journal of Veterinary Clinics / v.24, no.3, 2007 , pp. 441-443 More about this Journal
Abstract
Horner's syndrome is a group of clinical signs that results from interference with the sympathetic innervation of the globe and adnexa. Three dogs were presented with unilateral ptosis, miosis, enophthalmos and protrusion of the third eyelid. There were no other clinical signs on physical and neurological examination. On ophthalmic examination, the symptomatic eyes were diagnosed as Horner's syndrome. In order to localize the site of the lesion, pharmacological testing was performed through assessment of ocular response to the topical administration of 10% phenylephrine and clinical signs were resolved within 20 minutes. The pharmacological testing suggested that the deficit could be at the postganglionic neuron. Total resolution of clinical signs was observed within 6 months after their initial appearance without any treatment.
Keywords
Horner's syndrome; idiopathic; postganglionic; phenylephrine; dog;
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