doesn't take much bacteria — as few as 100 colony forming units —
for biofilm to begin forming on implants."
Laminar airflow has long been essential for keeping the sterile field
free of contaminants by sweeping them away from the operating field
in one direction. Some ORs employ vertical laminar flow, where HEPA-
filtered air is pushed downward from above the surgery area. Others
employ horizontal laminar flow, where HEPA-filtered air is pushed
from behind the work area and absorbed into the ventilation system.
Additional technologies to keep air free of contaminants are still
evolving, according to Ms. Barnes, who says a gentler form of vertical
air flow is now in favor in many ORs — a directional pattern of air
flowing over the operating room table and then directed to vents in
the corners of the room.
You can also opt to invest in devices that are positioned adjacent to
the sterile field and send HEPA-filtered air horizontally across the
incision site to push airborne contaminants away from the surgical
field and reduce surgical site infection risk. Ms. Barnes says, intuitive-
ly, the concept is a great idea. However, she says, make sure the solu-
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If you are interested in learning more,
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Come see us at AORN Expo
Booth #1738 | April 7-9
