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Updated: Aug 9, 2026

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A Protocol to Set Up Needle-Free Connector with Positive Displacement on Central Venous Catheter in Intensive Care Unit
Published on: July 13, 2019
Prospective nonrandomized trial of silver impregnated cuff central lines
Robert L Alderman1, Paul H Sugarbaker
1Washington Cancer Institute, Washington, District of Columbia 20010, USA.
International Surgery
|March 22, 2006
Summary
Silver impregnated Hohn catheters increased central line sepsis and pulmonary embolism risk compared to standard polypropylene lines. This study found Hohn catheters led to higher infection rates and complications in patients receiving total parenteral nutrition.
Area of Science:
- Medical Devices
- Infectious Diseases
- Vascular Surgery
Background:
- Central venous catheters are crucial for administering total parenteral nutrition.
- Reducing catheter-related bloodstream infections (CRBSI) is a clinical priority.
- Silver impregnated catheters were introduced to mitigate infection risks.
Purpose of the Study:
- To compare the incidence of central line sepsis and pulmonary embolism between Hohn catheters and polypropylene central lines.
- To evaluate the safety and efficacy of silver impregnated catheters in clinical practice.
Main Methods:
- A retrospective cohort study comparing patients with Hohn catheters versus polypropylene central lines.
- Data collected from a comprehensive morbidity and mortality database.
- Statistical analysis to determine the significance of observed differences in complication rates.
Main Results:
- Hohn catheters showed a significantly higher incidence of central line sepsis (17.2%) compared to polypropylene catheters (3.2%) (P < 0.0001).
- Pulmonary embolism incidence was also elevated with Hohn catheters (11.2%) versus polypropylene catheters (0.8%) (P < 0.0001).
- Catheter insertion difficulty and potential for increased venous trauma were noted with Hohn catheters.
Conclusions:
- Silver impregnated Hohn catheters were associated with an increased risk of central line sepsis and pulmonary embolism.
- The findings suggest that Hohn catheters may not be superior to standard polypropylene lines for reducing complications.
- Further investigation into insertion techniques and catheter design is warranted to improve patient safety.
