在涂抹阴性肺结核中SAT-TB的诊断值:一个诊断准确性研究
Xiaoxiao Zhao1, Kunping Cui1, Lang Bai1
1Center of Infectious Diseases, West China Hospital of Sichuan University, Chengdu, Sichuan, China.
Medicine
|December 17, 2024
概括
快速同步RNA放大和结核病检测 (SAT-TB) 显示与Xpert MTB/RIF在诊断涂抹阴性肺结核病方面具有很高的一致性. 在低资源环境中,SAT-TB是一个有价值,具有成本效益的早期检测工具.
科学领域:
- 分子诊断学 分子诊断学
- 传染病诊断 传染病诊断 传染病诊断
- 呼吸系统药物 呼吸系统药物
背景情况:
- 涂抹阴性肺结核 (PTB) 存在诊断方面的挑战.
- 准确和快速的诊断工具对于及时的治疗和控制至关重要.
- 现有的方法可能在灵敏度或可访问性方面存在局限性.
研究的目的:
- 评估快速同时RNA放大和结核病检测 (SAT-TB) 的诊断性能.
- 将SAT-TB与Xpert Mycobacterium tuberculosis/rifampin (MTB/RIF) 测定在样阴性PTB疑似患者中进行比较.
- 评估SAT-TB用于诊断涂抹阴性PTB的效率和成本效益.
主要方法:
- 一项多中心前性分析,涉及161名样阴性疑似PTB的患者.
- 收集或支气管支气管洗液 (BALF) 样本.
- 同时使用SAT-TB和Xpert MTB/RIF测试进行测试.
主要成果:
- 在诊断涂抹阴性PTB时,SAT-TB与Xpert MTB/RIF的一致性很高 (液的kappa值为0.686,BALF的kappa值为0.656).
- 在唾液中,SAT-TB灵敏度为50.7%,特异性为100.0%;Xpert MTB/RIF灵敏度为62.3%,特异性为100.0%.
- 在BALF中,SAT-TB灵敏度为57.1%,特异性为100.0%;Xpert MTB/RIF灵敏度为76.2%,特异性为96.2%.
结论:
- SAT-TB是一种有价值的方法,用于早期检测,预防和管理涂抹阴性PTB嫌疑人.
- 该试验表现出与Xpert MTB/RIF的高诊断一致性.
- 由于SAT-TB的检测效率和成本效益,它适合在低收入和中等收入国家进行快速诊断.
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