A retrospective analysis comparing metagenomic next-generation sequencing with conventional microbiology testing for the identification of pathogens in patients with severe infections
IntroductionThe application value of metagenomic next-generation sequencing (mNGS) in detecting pathogenic bacteria was evaluated to promote the rational and accurate use of antibiotics. A total of 180 patients with severe infections were included in this study.MethodsBased on their different sympto...
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Frontiers Media S.A.
2025-04-01
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| Series: | Frontiers in Cellular and Infection Microbiology |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fcimb.2025.1530486/full |
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| author | Fei Hou Fei Hou Yanting Qiao Yuanyuan Qiao Ya Shi Mingrui Chen Min Kong Min Kong Xiaohang Hu Liqing Jiang Xiaowei Liu |
| author_facet | Fei Hou Fei Hou Yanting Qiao Yuanyuan Qiao Ya Shi Mingrui Chen Min Kong Min Kong Xiaohang Hu Liqing Jiang Xiaowei Liu |
| author_sort | Fei Hou |
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| description | IntroductionThe application value of metagenomic next-generation sequencing (mNGS) in detecting pathogenic bacteria was evaluated to promote the rational and accurate use of antibiotics. A total of 180 patients with severe infections were included in this study.MethodsBased on their different symptoms, bronchoalveolar lavage fluid (BALF) or blood samples were collected for conventional microbiological testing (CMT) and mNGS.ResultsThe results indicated that the etiological diagnosis rate of mNGS (78.89%) was significantly higher than that of CMT (20%) (p<0.001). Notably, mNGS exhibited greater sensitivity towards rare pathogens such as Chlamydia pneumoniae, Mycobacterium tuberculosis complex, and Legionella pneumophila, which were undetectable by CMT. Additionally, 64 cases underwent blood culture, BALF culture, and mNGS testing. Analysis revealed that the positive rate of blood culture (3.1%) was lower than that of BALF (25%), and the positive rate of CMT from both types was significantly lower than that of mNGS (89.1%) (p<0.001). In this study, 168 mNGS results were accepted, and 116 patients had their antibiotic therapy adjustment based on mNGS. Paired analysis indicated that white blood cell count (WBC), procalcitonin (PCT), C-reactive protein (CRP), and neutrophil (NEU) percentage provided valuable therapeutic guidance. The survival rate of patients was 55.36%, influenced by patient physical condition and age.DiscussionOur data indicated that mNGS had significant auxiliary value in the clinical diagnosis and treatment for critically ill patients, especially for those with negative CMT results and clinically undefined infections. mNGS could broaden the detection scope, especially for special pathogens, and improve the detection rate, providing powerful assistance for early clinical diagnosis and treatment. |
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| language | English |
| publishDate | 2025-04-01 |
| publisher | Frontiers Media S.A. |
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| series | Frontiers in Cellular and Infection Microbiology |
| spelling | doaj-art-3c2da8342a944baeb42e09c32f51afa82025-08-20T02:26:20ZengFrontiers Media S.A.Frontiers in Cellular and Infection Microbiology2235-29882025-04-011510.3389/fcimb.2025.15304861530486A retrospective analysis comparing metagenomic next-generation sequencing with conventional microbiology testing for the identification of pathogens in patients with severe infectionsFei Hou0Fei Hou1Yanting Qiao2Yuanyuan Qiao3Ya Shi4Mingrui Chen5Min Kong6Min Kong7Xiaohang Hu8Liqing Jiang9Xiaowei Liu10Medical Laboratory of Jining Medical University, Jining Medical University, Jining, Shandong, ChinaDepartment of Clinical Laboratory, The Affiliated Hospital of Jining Medical University, Jining, Shandong, ChinaDepartment of Critical Care Medicine, The Affiliated Hospital of Jining Medical University, Jining, Shandong, ChinaDepartment of Critical Care Medicine, The Affiliated Hospital of Jining Medical University, Jining, Shandong, ChinaDepartment of Critical Care Medicine, The Affiliated Hospital of Jining Medical University, Jining, Shandong, ChinaDepartment of Critical Care Medicine, The Affiliated Hospital of Jining Medical University, Jining, Shandong, ChinaMedical Laboratory of Jining Medical University, Jining Medical University, Jining, Shandong, ChinaDepartment of Clinical Laboratory, The Affiliated Hospital of Jining Medical University, Jining, Shandong, ChinaDepartment of Clinical Laboratory, The Affiliated Hospital of Jining Medical University, Jining, Shandong, ChinaDepartment of Clinical Laboratory, The Affiliated Hospital of Jining Medical University, Jining, Shandong, ChinaDepartment of Critical Care Medicine, The Affiliated Hospital of Jining Medical University, Jining, Shandong, ChinaIntroductionThe application value of metagenomic next-generation sequencing (mNGS) in detecting pathogenic bacteria was evaluated to promote the rational and accurate use of antibiotics. A total of 180 patients with severe infections were included in this study.MethodsBased on their different symptoms, bronchoalveolar lavage fluid (BALF) or blood samples were collected for conventional microbiological testing (CMT) and mNGS.ResultsThe results indicated that the etiological diagnosis rate of mNGS (78.89%) was significantly higher than that of CMT (20%) (p<0.001). Notably, mNGS exhibited greater sensitivity towards rare pathogens such as Chlamydia pneumoniae, Mycobacterium tuberculosis complex, and Legionella pneumophila, which were undetectable by CMT. Additionally, 64 cases underwent blood culture, BALF culture, and mNGS testing. Analysis revealed that the positive rate of blood culture (3.1%) was lower than that of BALF (25%), and the positive rate of CMT from both types was significantly lower than that of mNGS (89.1%) (p<0.001). In this study, 168 mNGS results were accepted, and 116 patients had their antibiotic therapy adjustment based on mNGS. Paired analysis indicated that white blood cell count (WBC), procalcitonin (PCT), C-reactive protein (CRP), and neutrophil (NEU) percentage provided valuable therapeutic guidance. The survival rate of patients was 55.36%, influenced by patient physical condition and age.DiscussionOur data indicated that mNGS had significant auxiliary value in the clinical diagnosis and treatment for critically ill patients, especially for those with negative CMT results and clinically undefined infections. mNGS could broaden the detection scope, especially for special pathogens, and improve the detection rate, providing powerful assistance for early clinical diagnosis and treatment.https://www.frontiersin.org/articles/10.3389/fcimb.2025.1530486/fullmetagenomic next-generation sequencingdetection of pathogenssevere infectionsbronchial alveolar lavage fluidbloodconventional microbiological testing |
| spellingShingle | Fei Hou Fei Hou Yanting Qiao Yuanyuan Qiao Ya Shi Mingrui Chen Min Kong Min Kong Xiaohang Hu Liqing Jiang Xiaowei Liu A retrospective analysis comparing metagenomic next-generation sequencing with conventional microbiology testing for the identification of pathogens in patients with severe infections Frontiers in Cellular and Infection Microbiology metagenomic next-generation sequencing detection of pathogens severe infections bronchial alveolar lavage fluid blood conventional microbiological testing |
| title | A retrospective analysis comparing metagenomic next-generation sequencing with conventional microbiology testing for the identification of pathogens in patients with severe infections |
| title_full | A retrospective analysis comparing metagenomic next-generation sequencing with conventional microbiology testing for the identification of pathogens in patients with severe infections |
| title_fullStr | A retrospective analysis comparing metagenomic next-generation sequencing with conventional microbiology testing for the identification of pathogens in patients with severe infections |
| title_full_unstemmed | A retrospective analysis comparing metagenomic next-generation sequencing with conventional microbiology testing for the identification of pathogens in patients with severe infections |
| title_short | A retrospective analysis comparing metagenomic next-generation sequencing with conventional microbiology testing for the identification of pathogens in patients with severe infections |
| title_sort | retrospective analysis comparing metagenomic next generation sequencing with conventional microbiology testing for the identification of pathogens in patients with severe infections |
| topic | metagenomic next-generation sequencing detection of pathogens severe infections bronchial alveolar lavage fluid blood conventional microbiological testing |
| url | https://www.frontiersin.org/articles/10.3389/fcimb.2025.1530486/full |
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