Peer-reviewed veterinary case report
How urine tests affect antibiotic choices for dog urinary infections
By Sørensen, T M et al.·Published in Journal of veterinary internal medicine·2018·Department of Veterinary Clinical Sciences·View original on PubMed →
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Original publication title: Effects of Diagnostic Work-Up on Medical Decision-Making for Canine Urinary Tract Infection: An Observational Study in Danish Small Animal Practices.
- Species:
- dog
Plain-English summary
A group of 151 dogs showing signs of urinary tract infection (UTI) were evaluated at various veterinary clinics in Denmark. Many of the dogs underwent tests like urine dipstick and microscopic examination, but over-prescription of antibiotics was common, with 36% receiving unnecessary medications. While most dogs were diagnosed correctly, the study found that better diagnostic practices could help reduce inappropriate antibiotic use. This means that if your dog shows symptoms of a UTI, it's important to ensure that your vet conducts thorough testing before starting treatment to avoid unnecessary antibiotics.
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Abstract
BACKGROUND: Clinical signs of urinary tract disease in dogs often lead to prescription of antibiotics. Appropriate diagnostic work-up could optimize treatment and reduce the risk of inappropriate use of antibiotics. HYPOTHESIS/OBJECTIVES: To describe and evaluate the impact of diagnostic work-up on decision to treat (DTT) and choice of antibiotic treatment (COT) for dogs presenting with clinical signs of urinary tract disease. ANIMALS: One hundred and fifty-one dogs presenting to 52 Danish veterinary practices. METHODS: Prospective, observational study. Clinical signs, diagnostic work-up, and prescriptions were recorded. Urine samples were submitted to a reference laboratory for quantitative bacterial culture (QBC) and susceptibility testing. The laboratory results were used as reference for assessing the appropriateness of DTT and COT. RESULTS: In the majority of dogs, veterinarians performed dipstick (99%), microscopic examination of urine (80%) and bacterial culture (56%). Fifty-one percent of dogs had urinary tract infection (UTI) based on reference QBC. Appropriate DTT was made for 62% of the dogs, while 36% were over-prescribed and 2% under-prescribed. Inappropriate use of second-line agents was found in 57% of the UTI cases. Performing microscopy-but not culture-significantly impacted DTT (P = 0.039) while no difference was seen in COT (P = 0.67). The accuracy of in-house microscopy and culture were 64.5 and 77%, respectively. CONCLUSIONS AND CLINICAL IMPORTANCE: Over-prescription of antibiotics was common among dogs with suspected UTI, regardless of the diagnostic work-up performed. Test inaccuracy under practice conditions and incoherence between diagnostic test results and decision-making both explained inappropriate and unnecessary use of antibiotics.
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Search related cases →Original publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/29469943/