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快速梅毒测试评价作为公共卫生计划的工具

By LabMedica International staff writers
Posted on 16 Dec 2016
快速梅毒螺旋体梅毒筛查检验商品是公共卫生计划的一种新工具,用于对抗增长中的梅毒发病率,尤其是此前未感染过梅毒的人。
梅毒健康检查(SHC)可由非实验室医护人员进行,10分钟获得结果,并于近期获得临床实验室改进修正案豁免。
Florida Department of Health(Tampa,FL,USA)的科学家与疾病控制与预防中心(CDC,Atlanta,GA,USA)合作,评价SHC的性能,与性传播疾病(STD)诊所常规使用的梅毒螺旋体和非梅毒螺旋体检验进行性能比较。为进行此评价,患者们在2016年3月11日至4月21日间在Escambia County的Florida Department of Health STD诊所接受性传播疾病(STD)检查,使用SHC检测手指针刺的血液标本;同时抽取静脉血标本用于梅毒螺旋体和国家公共卫生实验室检查。
评价SHC时,使用Trep-Sure定性酶免疫测定法(EIA)作为对照梅毒螺旋体检测法,提供标准“真实”阳性或阴性梅毒螺旋体检测结果。还检测了梅毒快速血浆反应素(RPR)卡。使用SHC筛查202名患者的梅毒。这些患者中,171名(85%)对所有梅毒检查(SHC,EIA和RPR)无反应,26名(13%)对SHC有反应,5名(2%)对SHC无反应,但在国家实验室有一项或多项检测反应。
26名有SHC反应的患者中,10名(38%)有EIA反应(6名有RPR反应),16名(62%)在国家实验室未获得EIA或RPR检查证实。6名有SHC反应和EIA和RPR反应的患者中,3名分期为二期梅毒,1名为初期梅毒,1名为潜伏早期梅毒,1名此前接受过积极治疗的患者自最近一次检测以来滴度未增加。5份标本其他检测有反应,但对SHC检测无反应,仅1份标本RPR(1:8血清稀释)和EIA检测均有反应。与Trep-Sure(EIA)对照梅毒螺旋体检验相比,SHC的灵敏度为71.4%。与对照梅毒螺旋体相比,SHC的特异性为91.5%。本研究已发表于2016年10月28日刊的Morbidity and Mortality Weekly Report(发病率和死亡率周报)。

Related Links:
Florida Department of Health 
Centers of Disease Control and Prevention 


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