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Does Release Position Of Bacteria-Carrying Particles Influence Contaminant Distribution In An Operating Room ?
KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Fluid and Climate Technology.ORCID iD: 0000-0002-9361-1796
KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Fluid and Climate Technology.ORCID iD: 0000-0003-1882-3833
2015 (English)In: Proceedings of International Conference on Healthy Buildings 2015 Europe. May 18-20th 2015 – Eindhoven – The Netherlands, 2015, Paper_ID376- p.Conference paper, Published paper (Refereed)
Abstract [en]

It is generally accepted that human skin is a source of bacterial dispersal and the most common cause of infection in sensitive indoor surgical environments such as operating rooms (ORs). Airborne particles carrying microorganisms are dispersed from the whole body, but with different release rates. Previous studies show that particle dispersal was occurring mainly from the lower part of the body, especially from the perineal area. Whether the release position influences particle distribution in the surgical area has not been well known.

In this paper, two different particle launch positions, one from the head and neck and one from the perineum region and feet, were compared. Computational fluid dynamics (CFD) technique was employed to solve the governing equations for airflow and particle distribution.

The results indicate that particles released from the lower part of the body might easily rise by buoyancy forces. Several vortices generated by the main OR ventilation system may also bring particles from the lower part of the OR to the surgical area and increase the risk of infection.

Place, publisher, year, edition, pages
2015. Paper_ID376- p.
Keyword [en]
Particle launch position, operating room, contaminant distribution, computational fluid dynamics.
National Category
Environmental Health and Occupational Health
Research subject
Applied Medical Technology; Engineering Mechanics
Identifiers
URN: urn:nbn:se:kth:diva-163419OAI: oai:DiVA.org:kth-163419DiVA: diva2:800319
Conference
Healthy Buildings 2015 Europe, May 18-20th 2015, Eindhoven, The Netherlands
Note

QC 20150615

Available from: 2015-04-02 Created: 2015-04-02 Last updated: 2015-06-15Bibliographically approved

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Sadrizadeh, SasanHolmberg, Sture

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CiteExportLink to record
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Citation style
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