A comparison of veterinary classification schemes, serum ascites albumin gradient, and Boyer's criteria in discriminating transudates from exudates in ascitic dogs.
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Abstract
Objectives: To assess the parameters utilised by and the diagnostic performance of two traditional veterinary classification schemes (named A and B) based on ascites total protein and total nucleated cell count, the Boyer's criteria based on ascites lactic dehydrogenase activity, its serum ratio and the serum total protein, a simplified Boyer's criteria based on ascites lactic dehydrogenase activity and serum total protein only, and finally the serum-ascites albumin gradient in discriminate the pathophysiological origin of the ascites formation in dogs.
Materials and methods: Cross-sectional study including 291 client-owned dogs with ascites. Ascites aetiology was used to classify the pathophysiology of its formation. Parameters measured and calculated included ascites total protein, ascites total nucleated cell count, ascites lactic dehydrogenase activity and its serum ratio, serum total protein, and the serum-ascites albumin gradient.
Results: There were 33 transudates due to decreased colloid osmotic pressure, 69 transudates due to increased hydrostatic pressure gradient, and 189 exudates. Simplified Boyer's criteria misclassified 16 of 291 ascites (94.5% accuracy; 95% confidence interval: 91.2 to 96.8) and Boyer's criteria misclassified 21 of 291 ascites (92.8% accuracy; 95% confidence interval: 89.2 to 95.5). The traditional veterinary classification scheme B misclassified 71 of 291 ascites (75.6% accuracy; 95% confidence interval: 70.3 to 80.4) and scheme A 130 of 291 (55.3% accuracy; 95% confidence interval: 49.4 to 61.1). Finally, the serum-ascites albumin gradient misclassified 100 of 291 ascites (65.6% accuracy; 95% confidence interval: 59.9 to 71.1).
Clinical significance: The Boyers' criteria and a simplified Boyer's criteria were highly accurate in discriminating exudates from transudates, while the other classification schemes had significantly less diagnostic value in doing so.
期刊介绍：
Journal of Small Animal Practice (JSAP) is a monthly peer-reviewed publication integrating clinical research papers and case reports from international sources, covering all aspects of medicine and surgery relating to dogs, cats and other small animals. These papers facilitate the dissemination and implementation of new ideas and techniques relating to clinical veterinary practice, with the ultimate aim of promoting best practice. JSAP publishes high quality original articles, as well as other scientific and educational information. New developments are placed in perspective, encompassing new concepts and peer commentary. The target audience is veterinarians primarily engaged in the practise of small animal medicine and surgery.
In addition to original articles, JSAP will publish invited editorials (relating to a manuscript in the same issue or a topic of current interest), review articles, which provide in-depth discussion of important clinical issues, and other scientific and educational information from around the world.
The final decision on publication of a manuscript rests with the Editorial Board and ultimately with the Editor. All papers, regardless of type, represent the opinion of the authors and not necessarily that of the Editor, the Association or the Publisher.
The Journal of Small Animal Practice is published on behalf of the British Small Animal Veterinary Association and is also the official scientific journal of the World Small Animal Veterinary Association
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