单一测试梅毒血清学:一个不看森林的树木的案例
Ethan Mabvuto Zulu1, Julie M Herlihy2,3, Cassandra R Duffy4
1Right to Care Zambia, Lusaka, Zambia.
PloS one
|May 9, 2024
概括
在孕妇中仅使用三角膜快速测试进行梅毒查,导致过度治疗率高. 结合三角膜和非三角膜测试可以减少在低患病率环境中不必要的治疗.
科学领域:
- 传染性疾病 传染性疾病
- 公共卫生 公共卫生
- 诊断的准确性 诊断的准确性
背景情况:
- 有限的经验数据存在于梅毒诊断测试准确度使用连续快速测试在低流行人口如孕妇.
- 产前梅毒查对于预防先天性梅毒的传播至关重要.
研究的目的:
- 用反序测试算法描述赞比亚孕妇中梅毒测试阳性频率.
- 评估与产前护理中的快速梅毒检测相关的诊断准确性和过度治疗率.
主要方法:
- 一项前性研究在2019年8月至2023年5月期间,在赞比亚卢萨卡招募了1510名孕妇.
- 梅毒查涉及现场快速三角膜试验,随后对阳性样本进行快速血试剂 (RPR) 测试.
- 参与者按1:1的比例按艾滋病毒状况分层.
主要成果:
- 在1421个血清样本中,8.9%通过快速三角膜测试呈阳性.
- 在使用RPR测试的114个RDT阳性标本中,27.2%的确诊阳性,这表明梅毒过度治疗率是3倍.
- 5.9%的参与者无法进行测试,原因是样本或试剂盒的限制.
结论:
- 在低患病率的孕妇群体中仅依靠三角膜试验进行梅毒查,可能导致过度治疗非活跃梅毒病例.
- 实施双重三角体和非三角体检测策略可以减轻过度治疗的风险,尽管额外的成本很小.
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