杆菌感染的诊断:血清学与尿素呼吸试验对比
Miguel Imperial1,2,3, Kennard Tan1,4, Chris Fjell5
1Department of Pathology and Lab Medicine, University of British Columbia, Vancouver, British Columbia, Canada.
血清学仍然是Helicobacter pylori感染的有价值的初始查测试,特别是在低患病率的环境中. 阴性血清学可靠地排除了活跃感染,而阳性结果则需要通过尿素呼吸测试或便抗原测试进行进一步测试.
科学领域:
- 医学诊断 医学诊断 医学诊断
- 微生物学 微生物学
- 公共卫生 公共卫生
背景情况:
- 杆菌感染是全球重要的健康问题.
- 目前对H. pylori的诊断指南各不相同,有些人质疑血清学的实用性.
- 人口级数据比较血清学和尿素呼吸试验 (UBT) 性能对于优化诊断策略至关重要.
研究的目的:
- 为了比较血清学和尿素呼吸试验 (UBT) 的诊断性能,以检测Helicobacter pylori.
- 评估血清学作为人口级数据集中的初始查测试的实用性.
- 以实践实验室数据为基础,为最佳的H. pylori诊断策略提供信息.
主要方法:
- 从两个实验室对H. pylori血清学和UBT结果进行了回顾性分析,时间长达12年 (2006-2017年).
- 从人口级数据集中链接和分析诊断测试结果.
- 血清学和UBT的直接比较,对2,612名在14天内测试的个人进行了直接比较.
主要成果:
- 平均H. pylori的流行率是21.3%的血清学和17.5%的UBT.
- 在直接比较子组中,血清学表明对UBT的敏感度为96.5%,特异性为79.2%.
- 血清学显示了98.4%的负预测值,排除了活跃的H. pylori感染.
结论:
- 血清学作为H. pylori敏感的初始查测试仍然具有显著的实用性,特别是在患病率较低的人群中.
- 阴性血清学结果可以自信地排除活跃的H. pylori感染.
- 一种初始血清学策略,其次是UBT或便抗原测试以获得阳性结果,为基于人口的H. pylori诊断提供了一种具有成本效益和实用的方法.
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