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Evaluating the efficacy of surgical excision and topical dimethyl sulphoxide (DMSO) in the treatment of equine cutaneous pythiosis.

Abstract: Cutaneous pythiosis in horses is a chronic ulcerative granulomatous disease caused by the oomycete Pythium insidiosum. Objective: The objective of the present study was to evaluate the response of cutaneous pythiosis in horses to surgical excision and topical dimethyl sulphoxide (DMSO). Methods: Thirty horses were presented clinically with pruritus, fistulae discharging serosanguineous fluid, and output kunkers in different body areas (limb, abdomen, neck, and face). The clinical diagnosis was confirmed by isolation of the causative agent and histopathology. All animals were treated by surgical excision alone, or surgical excision followed by topical DMSO. The healing process was monitored every week macroscopically to evaluate the response to treatment until complete recovery. Results: The existence of Pythium insidiosum was confirmed in all cases. Histologically, affected horses were characterized by granulation tissue with abundant eosinophils. The size of wounds and the clinical features of pythiosis lesions decreased more after surgical debridement with DMSO application than surgical excision alone. The cutaneous pythiosis lesions were completely recovered at 35 ± 7 and 60 ± 5 days after the surgical excision with topical DMSO and surgical excision alone, respectively. Conclusions: The combination of surgical excision and topical DMSO is found an effective treatment for cutaneous pythiosis in horses.
Publication Date: 2021-02-16 PubMed ID: 33584843PubMed Central: PMC7871735
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  • Journal Article

Summary

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This research examines the effect of a combination of surgical removal and topical dimethyl sulphoxide (DMSO) treatment on cutaneous pythiosis, a skin disease in horses. The study concluded that using surgical excision with DMSO enabled a quicker healing process compared to surgery alone.

Objectives and Methods

  • The study wanted to evaluate how effective surgical removal combined with topical DMSO was in handling cutaneous pythiosis in horses. Pythiosis is a serious skin disease in horses characterized by chronic ulcers and granulomas.
  • Thirty horses with clinical signs of pythiosis — such as itching, fluid-discharging fistulas, and output kunkers in various body areas — were selected for the study.
  • The diagnosis of pythiosis was confirmed by singling out the causative agent and carrying out histopathology.
  • The horses were treated either by surgical removal alone or coupled with topical DMSO. The recovery process was monitored weekly to gauge the response to treatment until there was a complete recovery.

Results

  • Confirmation of pythiosis was seen in all cases. Observing the affected horses histologically revealed granulation tissue with an abundance of eosinophils.
  • There was a significant decrease in the size of wounds and clinical characteristics of pythiosis lesions after surgical debridement combined with DMSO application compared to surgery alone.
  • The lesions from cutaneous pythiosis were fully healed after about 35 days with surgery and DMSO, and around 60 days with surgery alone.

Conclusions

  • The research concludes that using surgical removal combined with topical DMSO treatment is effective for managing cutaneous pythiosis in horses.
  • This combination treatment notably speeds up the healing process compared to utilizing surgical excision alone.

Cite This Article

APA
Atiba A, Ghazy A, Hamad MH. (2021). Evaluating the efficacy of surgical excision and topical dimethyl sulphoxide (DMSO) in the treatment of equine cutaneous pythiosis. Iran J Vet Res, 21(4), 301-307.

Publication

ISSN: 1728-1997
NlmUniqueID: 101660030
Country: Iran
Language: English
Volume: 21
Issue: 4
Pages: 301-307

Researcher Affiliations

Atiba, A
  • Department of Surgery, Anesthesiology and Radiology, Faculty of Veterinary Medicine, Kafrelsheikh University, Kafrelsheikh 33516, Egypt.
Ghazy, A
  • Department of Surgery, Anesthesiology and Radiology, Faculty of Veterinary Medicine, Kafrelsheikh University, Kafrelsheikh 33516, Egypt.
Hamad, M H
  • Department of Animal Medicine, Faculty of Veterinary Medicine, Zagazig University, Zagazig, Egypt.

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Citations

This article has been cited 3 times.
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