Evaluation of closed sterile prefilled humidification

Area of Science:

• Medical Devices
• Infection Control
• Healthcare Economics

Background:

• Bacterial contamination of respiratory humidifiers poses a significant infection risk to patients.
• Multiple-use humidifiers require regular cleaning and maintenance, increasing the potential for contamination.
• Evaluating alternative humidification systems is crucial for improving patient safety and hospital efficiency.

Purpose of the Study:

• To compare the bacterial contamination rates of a closed sterile prefilled humidifier ('Aquapak 310') and a multiple-use humidifier ('Nebal 2').
• To analyze the cost-effectiveness of both humidification systems in different hospital departments.
• To assess the impact of each system on patient infection risk and staff workload.

Main Methods:

• Bacterial cultures were performed on water samples from 'Aquapak 310' and 'Nebal 2' humidifiers.
• Cost analysis was conducted, considering factors like device usage duration and consumable costs.
• Data were collected from haemodialysis and respiratory medicine departments.

Main Results:

• No bacterial contamination was detected in 389 'Aquapak 310' samples.
• 32.9% of 'Nebal 2' samples showed bacterial contamination, with Pseudomonas aeruginosa being the most common isolate.
• 'Aquapak 310' resulted in a 51% financial saving in the haemodialysis department but a 2% loss in respiratory medicine.
• Both systems demonstrated significant staff time savings (88-89%).

Conclusions:

• Closed sterile prefilled humidifiers offer a lower infection risk for patients.
• Prefilled humidifiers provide significant financial benefits in specific departments like haemodialysis.
• The use of prefilled sterile humidifiers can decrease staff workload, enhancing overall healthcare efficiency.