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Chen JW, Hsu CC, Su CC, Hsu RB, Chiu YL, Chia JS, Jung CJ. Transient bacteremia promotes catheter-related central venous thrombosis through neutrophil extracellular traps. Thromb Haemost 2021; 122:1198-1208. [PMID: 34768303 DOI: 10.1055/a-1695-8612] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
Formation of intravenous catheter-related thrombosis leads to central venous stenosis in patients requiring renal replacement therapy or chemotherapy infusion, yet the triggering or mechanisms remain unclear, especially in patients without symptoms of infection. In this study, we found that neutrophil extracellular traps (NETs) could be detected in the fibrin sheaths from dialysis patients without clinical manifestations of infection. Confocal microscopy revealed bacteria imbedded in NETs in the fibrin sheaths. Thirty-nine of 50 (78%) fibrin sheath specimens contained bacteria detectable by 16S ribosomal RNA genome typing with a predominance of Staphylococcus aureus (69%). In rat models, transient bacteremia of S. aureus induced NETs in enlarged fibrin sheaths, and treatment with DNase I alone significantly reduced both NET and fibrin sheath formation surrounding the catheter. Therefore, transient bacteremia could be a silent trigger that induces NET-related immunothrombosis enhancing catheter-related central venous stenosis.
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Affiliation(s)
- Jeng-Wei Chen
- National Taiwan University Hospital, Department of Surgery, National Taiwan University College of Medicine, Taipei, Taiwan.,Graduate institute of clinical medicine, National Taiwan University College of Medicine, Taipei, Taiwan
| | - Chih-Chieh Hsu
- School of Dentistry, Graduate Institute of Oral Biology, National Taiwan University, Taipei, Taiwan
| | - Chien-Chia Su
- National Taiwan University Hospital, Department of ophthalmology, National Taiwan University College of Medicine, Taipei, Taiwan.,Graduate institute of clinical medicine, National Taiwan University College of Medicine, Taipei, Taiwan
| | - Ron-Bin Hsu
- National Taiwan University Hospital, Department of Surgery, National Taiwan University College of Medicine, Taipei, Taiwan
| | - Yen-Ling Chiu
- Graduate institute of clinical medicine, National Taiwan University College of Medicine, Taipei, Taiwan.,Department of Medicine, Division of Nephrology, Far Eastern Memorial Hospital, New Taipei City, Taiwan.,College of Informatics, Department of Computer Science and Engineering, Graduate Program in Biomedical Informatics, Yuan Ze University, Chung-Li, Taiwan
| | - Jean-San Chia
- Graduate institute of clinical medicine, National Taiwan University College of Medicine, Taipei, Taiwan.,Graduate Institute of Microbiology, National Taiwan University College of Medicine, Taipei, Taiwan.,School of Dentistry, Graduate Institute of Clinical Dentistry, National Taiwan University, Taipei, Taiwan
| | - Chiau-Jing Jung
- College of Medicine, School of Medicine, Department of Microbiology and Immunology, Taipei Medical University, Taipei, Taiwan
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