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Equine duodenitis-proximal jejunitis: A review.

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Duodenitis-proximal jejunitis (DPJ) in horses is an acute intestinal inflammation causing ileus and toxemia. While several agents are suspected, Clostridium difficile shows the most promise as a primary cause.

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Area of Science:

  • Veterinary Medicine
  • Equine Gastroenterology
  • Microbiology

Background:

  • Duodenitis-proximal jejunitis (DPJ) is an acute inflammatory condition of the proximal small intestine in horses.
  • DPJ typically presents with ileus, nasogastric reflux, and signs of systemic toxemia.

Purpose of the Study:

  • To review the definition, etiology, clinical presentation, epidemiology, pathology, and medical management of DPJ in horses.
  • To critically evaluate the evidence supporting various proposed etiological agents of DPJ.
  • To highlight the potential role of Clostridium difficile in the pathogenesis of DPJ.

Main Methods:

  • Literature review of studies on equine duodenitis-proximal jejunitis.
  • Analysis of epidemiological, clinical, histopathological, and clinico-pathological data.
  • Evaluation of etiological investigations and supporting evidence for proposed causative agents.

Main Results:

  • Several potential etiological agents including Salmonella spp., mycotoxins, Clostridium perfringens, and Clostridium difficile have been associated with DPJ.
  • Limited evidence supports agents other than Clostridium difficile.
  • Clostridium difficile is highlighted as a potential primary etiological agent, with ongoing research into its role and pathogenesis.

Conclusions:

  • The etiology of DPJ remains multifactorial or not fully elucidated, but Clostridium difficile is a strong candidate.
  • Further research is needed to confirm the role of specific agents and understand the pathogenesis of DPJ.
  • Accurate diagnosis and targeted medical management are crucial for affected horses.