Show simple item record

dc.contributor.authorBi, Yang
dc.contributor.authorAganovic, Amar
dc.contributor.authorMathisen, Hans Martin
dc.contributor.authorCao, Guangyu
dc.date.accessioned2022-11-22T11:22:17Z
dc.date.available2022-11-22T11:22:17Z
dc.date.issued2022-04-21
dc.description.abstractThe purpose of this study was to reveal the exposure level of surgical staff to severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) from the patient's nose and wound during operations on COVID-19 patients. The tracer gas N<sub>2</sub>O is used to simulate SARS-CoV-2 from the patient's nose and wound. In this study, concentration levels of tracer gas were measured in the breathing zones of these surgical staff in the operating room under three pressure difference conditions: −5 pa–15 pa and −25 pa compared to the adjunction room. These influencing factors on exposure level are analyzed in terms of ventilation efficiency and the thermal plume distribution characteristics of the patient. The results show that the assistant surgeon faces 4 to 12 times higher levels of exposure to SARS-CoV-2 than other surgical staff. Increasing the pressure difference between the OR lab and adjunction room can reduce the level of exposure for the main surgeon and assistant surgeon. Turning on the cooling fan of the endoscope imager may result in a higher exposure level for the assistant surgeon. Surgical nurses outside of the surgical microenvironment are exposed to similar contaminant concentration levels in the breathing zone as in the exhaust. However, the ventilation efficiency is not constant near the surgical patient or in the rest of the room and will vary with a change in pressure difference. This may suggest that the air may not be fully mixed in the surgical microenvironment.en_US
dc.identifier.citationBi Y, Aganovic A, Mathisen HM, Cao G. Experimental study on the exposure level of surgical staff to SARS-CoV-2 in operating rooms with mixing ventilation under negative pressure. Building and Environment. 2022;217en_US
dc.identifier.cristinIDFRIDAID 2048389
dc.identifier.doi10.1016/j.buildenv.2022.109091
dc.identifier.issn0360-1323
dc.identifier.issn1873-684X
dc.identifier.urihttps://hdl.handle.net/10037/27459
dc.language.isoengen_US
dc.publisherElsevieren_US
dc.relation.journalBuilding and Environment
dc.relation.urihttps://www.sciencedirect.com/science/article/pii/S0360132322003286
dc.rights.accessRightsopenAccessen_US
dc.rights.holderCopyright 2022 The Author(s)en_US
dc.rights.urihttps://creativecommons.org/licenses/by/4.0en_US
dc.rightsAttribution 4.0 International (CC BY 4.0)en_US
dc.titleExperimental study on the exposure level of surgical staff to SARS-CoV-2 in operating rooms with mixing ventilation under negative pressureen_US
dc.type.versionpublishedVersionen_US
dc.typeJournal articleen_US
dc.typeTidsskriftartikkelen_US
dc.typePeer revieweden_US


File(s) in this item

Thumbnail

This item appears in the following collection(s)

Show simple item record

Attribution 4.0 International (CC BY 4.0)
Except where otherwise noted, this item's license is described as Attribution 4.0 International (CC BY 4.0)