Peer-reviewed veterinary case report
Detecting feline coronavirus in cat spinal fluid to diagnose
By Doenges, Stephanie J et al.·Published in Journal of feline medicine and surgery·2016·Clinic of Small Animal Medicine, Germany·View original on PubMed →
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Original publication title: Detection of feline coronavirus in cerebrospinal fluid for diagnosis of feline infectious peritonitis in cats with and without neurological signs.
- Species:
- cat
Plain-English summary
A group of cats suspected of having feline infectious peritonitis (FIP) was tested for feline coronavirus in their cerebrospinal fluid (CSF). Out of 34 cats, 19 had a confirmed diagnosis of FIP, with some showing neurological signs like seizures or eye problems. The test was very specific, meaning it rarely gave false positives, especially in cats with neurological symptoms, where it was quite sensitive. This means that if your cat shows signs of FIP, a CSF test could help confirm the diagnosis, particularly if they also have neurological issues.
People also search for: cat FIP symptoms · feline coronavirus test results · cat neurological signs treatment
Abstract
OBJECTIVES: The objective of this study was to evaluate the sensitivity and specificity of a real-time reverse transcriptase polymerase chain reaction (real-time RT-PCR) detecting feline coronavirus (FCoV) RNA in cerebrospinal fluid (CSF) of cats with and without neurological and/or ocular signs for the diagnosis of feline infectious peritonitis (FIP). METHODS: This prospective case-control study included 34 cats. Nineteen cats had a definitive histopathological diagnosis of FIP (seven of these with neurological and/or ocular signs), and 15 cats had other diseases but similar clinical signs (three of these with neurological and/or ocular signs). Real-time RT-PCR was performed on the CSF of all cats, and sensitivity, specificity, and positive (PPV) and negative predictive values (NPV) were calculated. RESULTS: Real-time RT-PCR of CSF showed a specificity of 100% in diagnosing FIP, a sensitivity of 42.1%, a PPV of 100% and an NPV of 57.7%. The sensitivity of the real-time RT-PCR of CSF in cats with neurological and/or ocular signs was 85.7%. CONCLUSIONS AND RELEVANCE: Although it is known that RT-PCR can give false positive results, especially if performed using serum or plasma, this real-time RT-PCR detecting FCoV RNA in CSF can be considered a reliable specific tool for the diagnosis of FIP. If only cats with neurological involvement are evaluated, the sensitivity of this real-time RT-PCR in CSF is also high.
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Search related cases →Original publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/25736448/