Saevik B K, Bredal W, Ulstein T L
Department of Small Animal Clinical Sciences, Section of Parasitology, The Norwegian School of Veterinary Science, PO Box 8146, Dep., N-0033 Oslo, Norway.
J Small Anim Pract. 2004 Oct;45(10):495-500. doi: 10.1111/j.1748-5827.2004.tb00194.x.
The aims of this study were to evaluate the ability of diagnostic methods to detect naturally occurring Cheyletiella infestation in dogs, and to quantify and relate the number of mites and eggs present to clinical signs. Privately owned dogs with skin problems were eligible for inclusion in the study. Four diagnostic tests were performed on each dog in the following order: tape impression, hair plucking, skin scraping and vacuum cleaning. Dogs with positive test results for Cheyletiella infestation in at least one of the tests under evaluation were included in the study (n=27). The severity of pruritus and scaling was graded on a four-point fixed scale. The diagnostic findings in vacuum cleaning samples provided a semiquantitative measure of the grade of infestation. The vacuum cleaning test gave a positive test result in all dogs and was significantly more efficient than the other tests evaluated (P<0.01). The number of diagnostic findings varied considerably among the different vacuum samples. No significant relationship between the number of diagnostic findings and severity of clinical signs was detected.
本研究的目的是评估诊断方法检测犬自然感染犬蠕形螨的能力，并对存在的螨和卵的数量进行量化，并将其与临床症状相关联。有皮肤问题的私人饲养犬符合纳入本研究的条件。对每只犬按以下顺序进行四项诊断测试：胶带压印、拔毛、皮肤刮片和真空吸尘。在至少一项评估测试中犬蠕形螨感染检测结果呈阳性的犬被纳入研究（n = 27）。瘙痒和脱屑的严重程度按四分固定量表进行分级。真空吸尘样本的诊断结果提供了感染程度的半定量测量。真空吸尘测试在所有犬中均给出阳性测试结果，并且比评估的其他测试显著更有效（P<0.01）。不同真空样本中的诊断结果数量差异很大。未检测到诊断结果数量与临床症状严重程度之间的显著关系。
