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Equine Dysautonomia

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Original languageEnglish
Pages (from-to)113-125
JournalVeterinary Clinics of North America, Equine Practice
Issue number1
Early online date2 Feb 2018
Publication statusPublished - 1 Apr 2018


Equine dysautonomia (ED; also known as equine grass sickness) is a neurological disease of unknown cause, which primarily affects grazing adult horses. The clinical signs reflect degeneration of specific neuronal populations, predominantly within the autonomic and enteric nervous systems, with disease severity and prognosis determined by the extent of neuronal loss. This review is primarily focused on the major clinical decision-making processes in relation to ED, namely, (1) clinical diagnosis, (2) selection of appropriate ancillary diagnostic tests, (3) obtaining diagnostic confirmation, (4) selection of treatment candidates, and (5) identifying appropriate criteria for euthanasia.

    Research areas

  • Grass sickness; , Dysautonomia, Ileus, Chromatolysis, Enteric nervous system

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