Prevention of surgical site infection under different ventilation systems in operating room environment

查看全文 作　　者：Zhijian [1]Liu;Haiyang [1]Liu;Hang [2]Yin;Rui [1]Rong;Guoqing [3]Cao;Qihong [4]Deng

机构地区：[1]Department of Power Engineering,North China Electric Power University,Baoding 071003,China;[2]Department of Civil Engineering,Technical University of Denmark,Copenhagen,DK-2800 Kgs,Denmark;[3]Institute of Building Environment and Energy,China Academy of Building Research,Beijing 100013,China;[4]School of Energy Science and Engineering,Central South University,Changsha 410083,China

出　　处：《Frontiers of Environmental Science & Engineering》索引2021年第15卷第3期,共14页

基　　金：by the National Natural Science Foundation of China(Nos.41977368 and 51708211);the National Science and Technology Ministry of China(No.2017YFC0702800);the Opening Funds of State Key Laboratory of Building Safety and Built Environment National Engineering Research Center of Building Technology(No.BSBE2017-08);Natural Science Foundation of Hebei Province(No.E2017502051);the Fundamental Research Funds for the Central Universities(Nos.2018MS103 and 2020YJ007). 摘　　要：Biological particles in the operating room(OR)air environment can cause surgical site infections(SSIs).Various ventilation systems have been employed in ORs to ensure an ultraclean environment.However,the effect of different ventilation systems on the control of bacteria-carrying particles(BCPs)released from the surgical staff during surgery is unclear.In this study,the performance of four different ventilation systems(vertical laminar airflow ventilation(VLAF),horizontal laminar airflow ventilation(HLAP),differential vertical airflow ventilation(DVAF),and temperature-controlled airflow ventilation(TAF))used in an OR was evaluated and compared based on the spatial BCP concentration.The airflow field in the OR was solved by the Renormalization Group(RNG)k-e turbulence model,and the BCP phase was calculated by Lagrangian particle tracking(LPT)and the discrete random walk(DRW)model.It was found that the TAF system was the most effective ventilation system among the four ventilation systems for ensuring air cleanliness in the operating area.This study also indicated that air cleanliness in the operating area depended not only on the airflow rate of the ventilation system but also on the airflow distribution,which was greatly affected by obstacles such as surgical lamps and surgical staff. 关键词：Operating room(OR) Bacteria-carrying particles(BCPs) Surgical site infections(SSIs) Ventilation

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Prevention of surgical site infection under different ventilation systems in operating room environment

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