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Updated: Jun 17, 2025

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Diagnosing Pulmonary Tuberculosis with the Xpert MTB/RIF Test
Published on: April 9, 2012
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坚持付出代价:在11次负面聚合酶连锁反应评估后诊断出结核性脑膜炎
Kazuki Obara1,2,3, Takashi Tsuboi2, Yu Mori1,2
1Department of Neurology, Gifu Prefectural Tajimi Hospital, Japan.
Internal medicine (Tokyo, Japan)
|August 13, 2024
概括
由于脑脊液 (CSF) 的PCR敏感性较低,诊断结核性脑膜炎 (TBM) 很困难. 重复采样至关重要,因为在初始负性PCR测试后32天,CSF培养证实了TBM.
科学领域:
- 神经学 神经学
- 传染性疾病 传染性疾病
- 医学诊断 医学诊断 医学诊断
背景情况:
- 结核性脑膜炎 (TBM) 带来了诊断挑战,往往导致患者的治疗结果不佳.
- 脑脊液 (CSF) 聚合酶链反应 (PCR) 试验的低灵敏度使早期TBM诊断复杂化.
- 临床表现可以模仿其他严重的疾病,如转移性癌症或神经类固醇症.
研究的目的:
- 为了突出一个具有挑战性的TBM案例的诊断困难.
- 强调重复脑液采样对于TBM诊断的重要性.
- 为了强调PCR在早期TBM检测中的局限性.
主要方法:
- 一个75岁的女性患者的病例报告,怀疑TBM.
- 使用CSFPCR和淋巴结PCR进行初始诊断.
- 在多个负的PCR结果后通过CSF培养确认诊断.
主要成果:
- 11个初始的PCR测试 (CSF和淋巴结) 对Mycobacterium结核病呈阴性结果.
- 在症状发作和经验性治疗开始后32天,TBM诊断最终通过CSF培养得到证实.
- 患者表现为疲劳和淋巴结扩大,使初始差异诊断复杂化.
结论:
- 早期的TBM诊断仍然具有挑战性,特别是负的PCR结果.
- 在初步测试没有明确结果时,重复的脑脊液采样和培养对于确认TBM至关重要.
- 临床怀疑应该引导长时间的调查,尽管分子诊断测试是负面的.
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