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Fang X, Cai Y, Chen X, Huang C, Lin Y, Huang Z, Zhang C, Huang Y, Li W, Zhang W. The role of metagenomic next-generation sequencing in the pathogen detection of invasive osteoarticular infection. Int J Infect Dis 2022; 122:996-1001. [PMID: 35908720 DOI: 10.1016/j.ijid.2022.07.061] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2022] [Revised: 07/19/2022] [Accepted: 07/24/2022] [Indexed: 10/16/2022] Open
Abstract
OBJECTIVE This study aimed to analyzed the pathogenic bacteria spectrum in invasive and primary osteoarticular infection (IOI and POI), and compared the pathogen detection rate of metagenomic next-generation sequencing (mNGS) and microbial culture in IOI and POI. METHODS The suspected POI and IOI cases from 2008 to 2021 were included. The diagnosis of POI or IOI were made by at least two orthopaedic surgeons, two infectious diseases specialist and one senior microbiologist. Demographic characteristics, microbial culture results and so on were recorded. The pathogenic bacteria spectrum in IOI and POI were analyzed and the ability of mNGS and microbial culture in pathogen detection in IOI and POI were compared. RESULTS There were 63 POI cases and 92 cases, the common pathogen in POI and IOI were both Staphylococcus aureus. There are more cases with negative microbial culture results and multiple infections in IOI, and many cases were caused by rare and fastidious bacteria. The introduction of the mNGS could significantly increase the pathogen detection rate to 92.39% in IOI, which was 8.69% higher than that of microbial culture (P=0.007), while the improvement in POI was limited to about 2%. CONCLUSIONS mNGS was an ideal tool for IOI pathogen detection.
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Affiliation(s)
- Xinyu Fang
- Department of Orthopaedic Surgery, The First Affiliated Hospital of Fujian Medical University, Fuzhou, Fujian, China.
| | - Yuanqing Cai
- Department of Orthopaedic Surgery, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China.
| | - Xiaoqing Chen
- Department of Orthopaedic Surgery, The First Affiliated Hospital of Fujian Medical University, Fuzhou, Fujian, China; Department of Orthopaedic Surgery, Quanzhou First Affiliated Hospital of Fujian Medical University, Quanzhou, Fujian, China.
| | - Changyu Huang
- Department of Orthopaedic Surgery, The First Affiliated Hospital of Fujian Medical University, Fuzhou, Fujian, China.
| | - Yiming Lin
- Department of Orthopaedic Surgery, The First Affiliated Hospital of Fujian Medical University, Fuzhou, Fujian, China.
| | - Zida Huang
- Department of Orthopaedic Surgery, The First Affiliated Hospital of Fujian Medical University, Fuzhou, Fujian, China.
| | - Chaofan Zhang
- Department of Orthopaedic Surgery, The First Affiliated Hospital of Fujian Medical University, Fuzhou, Fujian, China.
| | - Ying Huang
- Department of Orthopaedic Surgery, The First Affiliated Hospital of Fujian Medical University, Fuzhou, Fujian, China.
| | - Wenbo Li
- Department of Orthopaedic Surgery, The First Affiliated Hospital of Fujian Medical University, Fuzhou, Fujian, China.
| | - Wenming Zhang
- Department of Orthopaedic Surgery, The First Affiliated Hospital of Fujian Medical University, Fuzhou, Fujian, China.
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Kingella kingae Intrauterine Infection: An Unusual Cause of Chorioamnionitis and Miscarriage in a Patient with Undifferentiated Connective Tissue Disease. Diagnostics (Basel) 2021; 11:diagnostics11020243. [PMID: 33557386 PMCID: PMC7914692 DOI: 10.3390/diagnostics11020243] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Revised: 01/25/2021] [Accepted: 02/01/2021] [Indexed: 11/16/2022] Open
Abstract
Kingella kingae is a Gram-negative coccobacillus belonging to the Neisseriaceae family. In children less than 4 years old, K. kingae invasive infection can induce septic arthritis and osteomyelitis, and more rarely endocarditis, meningitis, ocular infections, and pneumonia. In adults, it may be a cause of endocarditis. To date, K. kingae acute chorioamnionitis (AC) leading to preterm rupture of membranes (PPROM) and miscarriage has never been reported. Herein, we describe a case of intrauterine fetal death (IUFD) at 22 weeks’ gestation due to K. kingae infection occurred in a patient affected by undifferentiated connective tissue disease (UCTD) in lupus erythematosus systemic (LES) evolution with severe neutropenia. K. kingae was isolated in placental subamnionic swab and tissue cultures as well as fetal ear, nose, and pharyngeal swabs. Placental histological examination showed necrotizing AC and funisitis. In the fetus, neutrophils were observed within the alveoli and in the gastrointestinal lumen. Maternal medical treatment for UCTD was modified according to the K. kingae invasive infection. In the event of IUFD due to AC, microbiological cultures on placenta and fetal tissues should always be carried out in order to isolate the etiologic agent and target the correct medical treatment.
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