Related Experiment Videos
[Verification of bacteriological safety of PCM 40 air conditioner]
Abstract:
This study assessed the bacteriological safety of the bedside air conditioner PCM 40 (Howorth Airtech), used for prevention of intraoperative hypothermia, by blowing filtered warm air through a special mattress. The 3 microns bacterial filter of the device released 2,968 +/- 5,618 particles of diameter less than 3 microns per m3 of room air, containing 78,798 +/- 37,243 of such particles per m3. The amount of bacteries in the air pulsed from the mattress was 30 +/- 41 cfu/m3 vs 120 cfu/m3 in the ambient air and in the hot air supply tubing it reached 6 +/- 5 cfu/m3 vs 175 +/- 77 cfu/m3. It is concluded that bacteriological data do not contra-indicate the use of this air conditioner in the operating theater. The only limitations for use are the position (prone or lateral position) and type of surgery (neurosurgery).
Insights
This study found the Howorth Airtech PCM 40 air conditioner safe for operating rooms. Bacteriological data did not contra-indicate its use for preventing intraoperative hypothermia.
Area of Science:
- Medical Devices
- Infection Control
- Respiratory Therapy
Context:
- Intraoperative hypothermia is a common complication during surgery.
- Maintaining normothermia is crucial for patient outcomes.
- Bedside air conditioning units are used to deliver warm air for thermal management.
Purpose:
- To assess the bacteriological safety of the Howorth Airtech PCM 40 bedside air conditioner.
- To determine if the device releases harmful bacteria into the operating room environment.
- To evaluate the suitability of the device for preventing intraoperative hypothermia.
Summary:
- The Howorth Airtech PCM 40 device, used for preventing intraoperative hypothermia, was tested for bacteriological safety.
- Bacterial filter analysis showed particle release rates within acceptable limits.
- Air pulsed from the mattress and hot air supply tubing contained bacterial levels comparable to or lower than ambient air.
Impact:
- Bacteriological data suggest the Howorth Airtech PCM 40 is safe for operating theater use.
- Limitations include specific surgical positions (prone, lateral) and types of surgery (neurosurgery).
- This finding supports the use of the device for patient warming while highlighting specific contraindications.