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Related Experiment Videos

Canine systemic fungal infections.

S G Krohne1

  • 1Department of Veterinary Clinical Sciences, School of Veterinary Medicine, Purdue University, West Lafayette, Indiana, USA.

The Veterinary Clinics of North America. Small Animal Practice
|October 18, 2000
PubMed
Summary

Disseminated fungal infections in animals primarily spread through inhalation, impacting organs and potentially causing ocular disease. Early detection and long-term treatment are crucial for managing these systemic fungal infections.

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Area of Science:

  • Veterinary Medicine
  • Mycology
  • Immunology

Background:

  • Fungal infections in animals often originate from inhalation, with wound contamination and ingestion playing a role in specific cases like histoplasmosis.
  • The immune system's response dictates infection severity, with immunocompromised individuals or larger inoculums leading to disseminated disease.
  • Clinical signs in dogs typically appear when fungi spread systemically via circulatory or lymphatic systems, affecting specific organs.

Purpose of the Study:

  • To outline the primary routes of fungal infection in animals.
  • To describe the clinical presentation and diagnostic importance of disseminated fungal diseases.
  • To discuss treatment strategies and the challenges of ocular involvement in systemic fungal infections.

Main Methods:

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  • Review of common dissemination routes (inhalation, wound contamination, ingestion).
  • Description of immune system's role in disease progression.
  • Analysis of clinical signs, including lymphadenopathy and ocular manifestations like chorioretinitis.
  • Discussion of diagnostic importance of early ocular changes.
  • Evaluation of treatment efficacy, duration, and challenges, particularly for ocular and central nervous system involvement.

Main Results:

  • Inhalation is the principal route for disseminated fungal diseases.
  • Ocular involvement, specifically chorioretinitis, is common and requires early detection for vision preservation.
  • Treatment is often effective but long-term, expensive, and may require lifelong administration.
  • Ocular disease can be refractory to treatment, necessitating monitoring of drug penetration into the eye.
  • Fluconazole shows better penetration of ocular barriers compared to other antifungals.

Conclusions:

  • Disseminated fungal infections require prompt diagnosis and sustained treatment, with particular attention to ocular and central nervous system involvement.
  • Effective management hinges on early detection of systemic and ocular signs and appropriate therapeutic strategies.
  • Long-term monitoring and treatment are essential, as ocular disease may require specialized approaches and drugs like fluconazole for improved outcomes.