Diagnostic Value of Mycobacterium Tuberculosis/Nontuberculous Mycobacteria Nucleic Acid Detection in Tuberculous Meningitis
10.11969/j.issn.1673-548X.2024.05.011
- VernacularTitle:结核/非结核分枝杆菌核酸检测对结核性脑膜炎的诊断价值
- Author:
Yayi SONG
1
;
Jianjun ZHAO
;
Jianyong ZHANG
Author Information
1. 563099 遵义医科大学附属医院呼吸与危重症学科
- Keywords:
Tuberculous meningitis;
Nontuberculous mycobacteria;
MTB/NTM;
GeneXpert MTB/RIF
- From:
Journal of Medical Research
2024;53(5):48-51,57
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate the clinical value of Mycobacterium tuberculosis/nontuberculous mycobacteria(MTB/NTM)nucleic acid detection in cerebrospinal fluid for the diagnosis of tuberculous meningitis(TBM).Methods The clinical data of 120 pa-tients with TBM were collected.Patients were divided into two groups using a random number table method:TBM A group(n=67,cere-brospinal fluid routine,biochemical,Roche culture,tuberculous smear,MTB/NTM nucleic acid detection)and TBM B group(n=53,cerebrospinal fluid routine,biochemical,Roche culture,tuberculous smear,GeneXpert MTB/RIF detection),and another 18 cases of cerebrospinal fluid from patients with other central nervous system infections were collected as control group(C group,cerebrospinal fluid routine,biochemical,Roche culture,tuberculous smear,MTB/NTM nucleic acid,GeneXpert MTB/RIF detection.Results The posi-tive rates of Roche culture,tuberculosis smear and MTB/NTM nucleic acid detection of cerebrospinal fluid in TBM A group were 13.43％(9/67),10.45％(7/67)and 46.27％(31/67),respectively.The positive rates of Roche culture,tuberculosis smear and GeneXpert MTB/RIF detection of cerebrospinal fluid in TBM B group were 15.09％(8/53),11.32％(6/53)and 47.17％(25/53),respective-ly.Among the cerebrospinal fluid GeneXpert MTB/RIF positive cases,lifampin resistance gene was positive in 2 patients.In the C group,patients had negative result in Roche culture,tuberculous smear,MTB/NTM nucleic acid detection and GeneXpert MTB/RIF detection.Conclusion MTB/NTM nucleic acid detection and GeneXpert MTB/RIF detection are useful in diagnosing TBM at early stage.MTB/NTM nucleic acid detection more economical than GeneXpert MTB/RIF detection,and can identify non-tuberculous mycobacteria(NTM),and timely reduce the misdiagnosis of NTM disease,which is worthy of clinical promotion.
