Microbiologic contamination of a positive- and a neutral- displacement needleless intravenous access device in...

Area of Science:

• Infection Control
• Medical Devices
• Hematology-Oncology

Background:

• Central venous catheters are essential for hemato-oncology patients but pose infection risks.
• Needleless intravenous access devices are used to prevent needlestick injuries and contamination.
• Different displacement technologies (positive vs. neutral) exist in needleless devices.

Purpose of the Study:

• To compare microbial contamination rates between positive-displacement and neutral-displacement needleless intravenous access devices.
• To evaluate the impact of these devices on central line-associated bloodstream infection (CLABSI) rates in hemato-oncology patients.

Main Methods:

• A comparative study involving hemato-oncology patients with central venous catheters.
• Microbial cultures were performed on the accessed devices.
• CLABSI rates were monitored and compared between the two device types.

Main Results:

• Positive-displacement needleless devices demonstrated significantly lower microbial contamination rates compared to neutral-displacement devices.
• No statistically significant difference was observed in the rates of central line-associated bloodstream infections between the two types of devices.

Conclusions:

• Positive-displacement needleless intravenous access devices may offer an advantage in reducing microbial contamination of central venous catheters.
• The choice of needleless device type did not appear to influence the incidence of CLABSIs in this patient population.