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目的:探讨引起细菌性阴道病实验室误诊的主要原因,提高细菌性阴道病实验室诊断的准确率。方法:对初步按诊断标准诊断为细菌性阴道病的患者进行随访,了解其就诊前及标本取样送检前的性生活情况。对送检样本做进一步的细菌分离培养鉴定。对初诊为细菌性阴道病的患者不作治疗,3d后再复检确诊。结果:在105例初步按诊断标准诊断为细菌性阴道病的病例中,有24例是假阳性诊断病例,误断率为22.86%。结论:就诊前及标本取样送检前的性行为是引起细菌性阴道病假阳性的主要原因之一,其次是阴道分泌物的滴虫感染是引起细菌性阴道病假阳性的另一主要原因。
Objective: To explore the main causes of laboratory misdiagnosis of bacterial vaginosis and to improve the accuracy of laboratory diagnosis of bacterial vaginosis. Methods: The patients diagnosed as bacterial vaginosis according to the diagnostic criteria were followed up first, and their sexual life before sampling and samples sampling were examined. The samples submitted for further bacterial isolation and identification. Newly diagnosed patients with bacterial vaginosis are not treated, and then re-examination confirmed after 3d. Results: Of the 105 cases initially diagnosed as bacterial vaginosis by diagnostic criteria, 24 were false-positive cases with a false positive rate of 22.86%. Conclusion: The pre-treatment and sample sampling before the test is the cause of false positives of bacterial vaginosis is one of the main reasons, followed by vaginal secretions of Trichomonas vaginalis infection is the cause of false positives of bacterial vaginosis is another major reason.