Peer-reviewed veterinary case report
Long-term outcome of diarrhea in cats with Tritrichomonas foetus
By Foster, Derek M et al.·Published in Journal of the American Veterinary Medical Association·2004·Department of Molecular Biomedical Sciences, United States·View original on PubMed →
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Original publication title: Outcome of cats with diarrhea and Tritrichomonas foetus infection.
- Species:
- cat
Plain-English summary
A group of 26 cats with diarrhea caused by Tritrichomonas foetus were studied to see how they recovered and what treatments helped. Most of the cats, 23 out of 26, stopped having diarrhea about 9 months after it started, even though some still had the parasite without showing symptoms. Changes in diet and treatment with a medication called paromomycin seemed to affect how long it took for the diarrhea to resolve. Overall, while many cats improved on their own, some continued to carry the parasite without any signs of illness.
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Abstract
OBJECTIVE: To determine the long-term outcome of cats infected with Tritrichomonas foetus and identify treatment and management strategies influencing resolution of infection or associated diarrhea. DESIGN: Prospective study. SAMPLE POPULATION: 26 cats with T. foetus-associated diarrhea at least 22 months prior to the study. PROCEDURE: A standardized survey regarding clinical course and management was administered to owners of cats with T. foetus infection and associated diarrhea. Fecal samples were obtained from each cat; the presence of T. foetus was assessed via microscopic examination of smears, culture in commercial media, and polymerase chain reaction amplification of T. foetus rDNA involving species-specific primers. RESULTS: Survey responses were obtained from owners of all 26 cats. Twenty-three cats had complete resolution of diarrhea a median of 9 months after onset. Analysis of fecal samples obtained from 22 cats revealed persistent T. foetus infection in 12, with a median of 39 months after resolution of diarrhea. History of implementation of a dietary change, treatment with paromomycin, or higher numbers of cats in the household was associated with significantly longer duration of time to resolution of diarrhea. CONCLUSIONS AND CLINICAL RELEVANCE: Results suggested chronic T. foetus-associated diarrhea in most cats is likely to resolve spontaneously within 2 years of onset. Chronic infection with T. foetus (without clinical signs) after resolution of diarrhea appears to be common. Although often temporarily effective in decreasing severity of diarrhea, attempts to treat cats with T. foetus infection may result in prolongation of time to resolution of diarrhea.
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Search related cases →Original publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/15485048/