Clinical pathological shortened – ERG results unaffected
Davis – mechentel news – Ivermectin-induced blindness can be treated with an intravenous lipid therapy, so DVM S. Epstein et al. from the Facultiy of Veterinary medicine, Davis, California. A female neutered Jack Russell Terrier was examined for acute onset of apparent blindness after being exposed to ivermectin the previous day. The dog appeared to be blind during initial examination. Pupillary light reflex, menace response, and dazzle reflex were not present in either eye. Fundic examination revealed small areas of linear retinal edema. Electroretinography (ERG) showed diminished activity in both eyes. Ivermectin was present in the serum on toxicological assay. Approximately 20 hours after exposure, IVL was infused. Within 30 minutes of initiating the infusion, the pupillary light reflexes returned in both eyes, and by the end of the infusion the patient behaved as if sighted. Fundic examination and ERG were unchanged at this time. The dog was tested for the multidrug resistance gene mutation and was unaffected. Ivermectin toxicity occurs in dogs with apparent blindness being a common clinical sign. This is the first case report of ivermectin-induced blindness evaluated with ERG before and after treatment with IVL in a dog unaffected by the multidrug resistance gene mutation. Treatment with an infusion of IVL therapy appeared to shorten the clinical course of disease in this patient without affecting ERG results, the authors concludes in the januara issue 2013 of Veterinary Emergency an Critical Care.
Authors: Epstein SE, Hollingsworth SR. Correspondence: Department of Surgical and Radiological Sciences, School of Veterinary Medicine, University of California, Davis, CA. Study: Ivermectin-induced blindness treated with intravenous lipid therapy in a dog. Source: J Vet Emerg Crit Care (San Antonio). 2013 Jan;23(1):58-62. doi: 10.1111/vec.12016. Epub 2013 Jan 14. Web: http://www.ncbi.nlm.nih.gov/ pubmed/23317101
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