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Related Experiment Videos

Triple lumen catheters. Technological advance or setback?

K N Apelgren

    The American Surgeon
    |February 1, 1987
    PubMed
    Summary
    This summary is machine-generated.

    Multilumen central venous catheters showed significant bacterial and fungal growth. Avoid using these catheters for nutritional support to reduce infection risks.

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    Area of Science:

    • Medical Microbiology
    • Infectious Diseases
    • Vascular Access Devices

    Background:

    • Multilumen central venous catheters (CVCs) are frequently utilized in hospitalized patients for various therapeutic interventions.
    • The indwelling nature of CVCs presents a potential route for microbial colonization and subsequent bloodstream infections.
    • Assessing the microbial burden on removed CVC tips is crucial for understanding catheter-related infection risks.

    Purpose of the Study:

    • To evaluate the incidence of bacterial and fungal contamination and infection on the tips of removed multilumen central venous catheters.
    • To determine the association between catheter use, particularly for nutritional support, and microbial growth.
    • To provide evidence-based recommendations for the optimal use of CVCs in clinical practice.

    Main Methods:

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    • A prospective study involving the microbiological analysis of 119 removed multilumen central venous catheters.
    • Catheter tips were cultured to quantify bacterial and fungal growth, differentiating between contamination (<15 colonies) and infection (≥15 colonies).
    • Data were collected on reasons for catheter removal, including mechanical failure, elective removal, and suspected catheter sepsis.

    Main Results:

    • An overall catheter contamination rate of 23.5% was observed (defined as <15 colonies).
    • A significant catheter infection rate of 14.3% was identified (defined as ≥15 colonies).
    • Microbial growth was detected on catheter tips removed for various reasons, highlighting the risk of colonization.

    Conclusions:

    • Multilumen central venous catheters are prone to bacterial and fungal colonization and infection.
    • The findings suggest that the use of these catheters for delivering nutritional support solutions should be minimized or avoided due to elevated infection risks.
    • Further research into alternative vascular access methods or improved catheter care protocols may be warranted.