Hum Reprod Update:CA125对先兆流产结局的预示作用高于HCG和孕酮

2015-12-18 candy译 MedSci原创

背景:先兆流产影响1/5的女性,它与情绪困扰有显著相关性。先兆流产的预后仍然不能确定,由此成为了医疗护理专业人员的一项挑战。过去几年已经研究出多种生物标志物以预测先兆流产的结局;然而,结果却十分矛盾。因此,研究人员构建了一项系统性回顾性meta分析,以研究生物标志物在预测先兆流产女性妊娠结局的诊断准确性。方法:这是一项系统回顾性meta分析的前瞻性研究,探究生物标志物预测孕龄在5-23周范围的女性

背景:先兆流产影响1/5的女性,它与情绪困扰有显著相关性。先兆流产的预后仍然不能确定,由此成为了医疗护理专业人员的一项挑战。过去几年已经研究出多种生物标志物以预测先兆流产的结局;然而,结果却十分矛盾。因此,研究人员构建了一项系统性回顾性meta分析,以研究生物标志物在预测先兆流产女性妊娠结局的诊断准确性。

方法:这是一项系统回顾性meta分析的前瞻性研究,探究生物标志物预测孕龄在5-23周范围的女性出现先兆流产的预后。从2015年6月开始检索电子数据库,使用QUADAS-2(诊断准确性的质量评估研究-2:修改工具)作质量评估,以计算诊断准确度。Cochrane系统评价软件做统计分析。

结果:共计19项研究被囊括到此次定性数据合成分析中,其中15项符合此次meta分析的纳入标准(包括1263例女性)。此次着重回顾以下生物标志物在预测先兆流产结局的作用:血清孕酮、hCG、与妊娠相关的血浆蛋白A、雌二醇和CA125。有趣的是,在胎儿存活率被发布后,发现血清CA125是最有潜力的标志物(七项研究的648例女性),而血清孕酮和hCG显得作用较弱。数据总结者在处理CA125的特征性时发现:敏感性为90%(95%置信区间 83-94%),特异性88%(95%CI 79-93%),正似然比7.86 (95% CI 4.23–14.60),负似然比0.10 (95% CI 0.06–0.20)。逆负似然比9.31 (95% CI 5–17.1),说明一个阴性的检测结果可以鉴别那些有继续妊娠可能性的群体。血清雌二醇是仅次于CA125的标志物,敏感性45% (95% CI 6–90%),特异性87% (95% CI 81–92%),正似然比3.72 (95% CI 1.01–13.71),负似然比0.62 (95% CI 0.20–1.84)。

结论:先兆流产女性的血清CA125水平在鉴定是否可以继续妊娠中具有高预测价值,而最常使用的血清hCG和孕酮在预测妊娠胎儿存活的结局时,显得并不理想。另外其他标志物,如抑制素A和标志物的结合需要进一步研究,希望可以在预测先兆流产女性妊娠结局方面有所发展。

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    2015-12-20 zgwhgch
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    2015-12-20 周虎
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    2015-12-20 sunylz

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