结核分枝杆菌及耐药基因快速检测对喉结核的诊断价值
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武汉大学人民医院

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The Diagnostic Value of Rapid Detection of Mycobacterium Tuberculosis and Drug Resistance Genes in Laryngeal Tuberculosis
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Wuhan University Renmin Hospital

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    摘要:

    【】目的:评价结核分枝杆菌及耐药基因快速检测(TB-Gene Xpert MTB/RIF)对喉结核的诊断价值。方法:回顾性分析2018年1月至2024年6月在武汉大学人民医院接受初诊的94例疑似喉结核患者。所有患者均进行胸部CT检查、血液结核感染T细胞检测(T-spot)、痰涂片抗酸染色检测。在电子喉镜下采集病变组织进行TB-Gene Xpert MTB/RIF检测、病理学检测及结核分枝杆菌培养。以临床确诊喉结核患者作为金标准,评价胸部CT、T-spot、痰涂片抗酸染色、组织结核分枝杆菌培养和TB-Gene Xpert MTB/RIF在喉结核诊断中的效能。结果:本研究共纳入94例疑似喉结核患者,最终确诊喉结核59例,非喉结核35例。以确诊的59例喉结核患者为参照,胸部CT、T-spot、痰涂片、组织分枝杆菌培养、病理学检测及TB-Gene Xpert MTB/RIF的敏感度分别为59.3%(35/59)、67.8%(40/59)、25.4%(15/59)、35.6%(21/59)、79.7%(47/59)和100%(59/59);其特异度分别为42.9%(15/35)、51.4%(18/35)、91.4%(32/35)、100%(35/35)、85.7%(30/35)和94.3%(33/35)。TB-Gene Xpert MTB/RIF检测的敏感度显著高于其他检测方法(P<0.01),其特异度显著高于胸部影像学和T-spot(P<0.01),与痰涂片、组织培养及病理学检测的特异度无显著差异(P>0.05)。喉结核患者中检测出2例利福平耐药菌株,TB-Gene Xpert MTB/RIF均检测出rpoB基因突变,敏感度为100%。所有喉结核患者在接受系统抗结核治疗后,预后良好。结论:TB-Gene Xpert MTB/RIF技术在喉结核诊断中具有快速、简便、高敏感度和高特异度等优势,能够有效识别利福平耐药患者,适用于喉结核的早期诊断,有助于减少漏诊和误诊风险。

    Abstract:

    Objective: To evaluate the diagnostic value of tuberculosis (TB) and drug-resistant gene rapid detection (TB-Gene Xpert MTB/RIF) for laryngeal tuberculosis. Methods: A retrospective analysis was conducted on 94 suspected laryngeal tuberculosis patients who received initial diagnosis at Renmin Hospital of Wuhan University from January 2018 to June 2024. All patients underwent chest CT examination, blood TB infection T-cell detection (T-spot), and sputum smear acid-fast staining. Tissue samples were collected under electronic laryngoscopy for TB-Gene Xpert MTB/RIF detection, pathological examination, and TB culture. The diagnostic efficacy of chest CT, T-spot, sputum smear, tissue TB culture, pathological examination, and TB-Gene Xpert MTB/RIF in the diagnosis of laryngeal tuberculosis was evaluated using clinically confirmed laryngeal tuberculosis patients as the gold standard. Results: A total of 94 suspected laryngeal tuberculosis patients were included in this study, with 59 confirmed cases of laryngeal tuberculosis and 35 non-laryngeal tuberculosis cases. Referencing the 59 confirmed cases of laryngeal tuberculosis, the sensitivities of chest CT, T-spot, sputum smear, tissue culture, pathological examination, and TB-Gene Xpert MTB/RIF were 59.3% (35/59), 67.8% (40/59), 25.4% (15/59), 35.6% (21/59), 79.7% (47/59), and 100% (59/59), respectively; their specificities were 42.9% (15/35), 51.4% (18/35), 91.4% (32/35), 100% (35/35), 85.7% (30/35), and 94.3% (33/35), respectively. The sensitivity of TB-Gene Xpert MTB/RIF detection was significantly higher than other detection methods (P<0.01), and its specificity was significantly higher than chest imaging and T-spot (P<0.01), with no significant difference in specificity compared to sputum smear, tissue culture, and pathological examination (P>0.05). Two rifampicin-resistant strains were detected in patients with laryngeal tuberculosis, and TB-Gene Xpert MTB/RIF detected rpoB gene mutations with a sensitivity of 100%. All laryngeal tuberculosis patients had a good prognosis after receiving systemic anti-tuberculosis treatment. Conclusion: The TB-Gene Xpert MTB/RIF technology has the advantages of being rapid, simple, highly sensitive, and highly specific in the diagnosis of laryngeal tuberculosis. It can effectively identify rifampicin-resistant patients and is suitable for early diagnosis of laryngeal tuberculosis, helping to reduce the risk of missed and misdiagnoses.

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  • 收稿日期:2025-09-22
  • 最后修改日期:2025-12-03
  • 录用日期:2025-12-18
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