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Prevention of catheter sepsis: the hub
A Sitges-Serra1, R Hernández, S Maestro
1Department of Surgery, Hospital Universitari del Mar, Barcelona, Spain.
Abstract:
The prevention of catheter sepsis lies in a sound understanding of the routes through which catheters get contaminated. The catheter hub has been recognized as a portal for microorganisms causing catheter sepsis, particularly in central venous catheters inserted for > 1 wk. Bacteria and fungi may reach the internal surface of the catheter connector during manipulation by hospital staff and then colonize the entire lumen of the catheter. Endoluminal contamination has diagnostic, therapeutic, and preventive implications. Some traditional preventive approaches (site care, subcutaneous cuffs and tunnels, maximal aseptic barriers at the time of catheter insertion, and external antiseptic or antibiotic coating) may fail because they focus solely on the skin as a source of bacteria. Hub-related catheter sepsis can be prevented by aseptic hub manipulation, appropriate junction protection, and by reducing the number of catheter lumens, side ports, three-way stopcocks, and changes of the infusion sets. Needleless systems must be evaluated in terms of their safety in preventing endoluminal contamination. A new disinfecting catheter hub incorporating an antiseptic barrier has been developed and reduced hub-related catheter sepsis by more than 90%. The endoluminal route of intravascular catheter contamination must be taken into account when designing strategies for the diagnosis and prevention of catheter-related sepsis.
Insights
Preventing catheter sepsis requires understanding contamination routes. A new disinfecting catheter hub significantly reduced hub-related sepsis by over 90%, highlighting the importance of endoluminal contamination prevention.
Area of Science:
- Infection Control
- Medical Device Microbiology
- Vascular Access
Background:
- Catheter sepsis is a significant healthcare-associated infection.
- The catheter hub is a recognized entry point for microorganisms, especially in central venous catheters used long-term.
- Endoluminal contamination, occurring during catheter manipulation, poses risks for sepsis.
Purpose of the Study:
- To investigate the endoluminal route of catheter contamination.
- To evaluate the effectiveness of traditional and novel preventive strategies against catheter sepsis.
- To emphasize the importance of addressing hub-related contamination.
Main Methods:
- Review of contamination routes for intravascular catheters.
- Analysis of traditional preventive measures and their limitations.
- Evaluation of a novel disinfecting catheter hub with an antiseptic barrier.
Main Results:
- Traditional methods focusing on skin contamination may be insufficient.
- Hub manipulation by healthcare staff is a key factor in endoluminal contamination.
- A new disinfecting catheter hub reduced hub-related catheter sepsis by over 90%.
Conclusions:
- Endoluminal contamination via the catheter hub is a critical pathway for sepsis development.
- Preventive strategies must incorporate aseptic hub manipulation and junction protection.
- Novel disinfecting hubs offer a highly effective solution for preventing hub-related catheter sepsis.