A systematic review of operating room ventilation

Ventilation Strategies for Mitigating Airborne Infections in Healthcare Facilities: A Mini-Review and Bibliometric Analysis (1970 to 2021)

“…Despite there being several known types of ventilation systems practised in healthcare facilities, numerous researchers still put effort into developing the optimal ventilation layout through multiple arrangements of air inlets and outlets in different functional spaces [61]. For instance, the vertical laminar airflow (LAF) ventilation system and turbulent mixing airflow ventilation are considered the two traditional ventilation systems in an OR [62]. However, the matter of debate remains due to the controversial findings of LAF or mixing ventilation in ensuring the sterility of OR.…”

Virus-laden droplet nuclei in vortical structures associated with recirculation zones in indoor environments: A possible airborne transmission of SARS-CoV-2

“…3 ) at low air injection velocities less than or equal to 0.2 m/s ( Yang et al, 2015 ; Lin et al, 2020 ; Tacutu et al, 2021 ; Liu et al, 2022c ). These vortical structures are possible because the UAV operates at low air-injected velocities (0.2-0.3 m/s), according to Sadrizadeh et al (2021) , but a lack of information cannot verify this phenomenon. On the other hand, the medical study performed by Kenarkoohi et al (2020) can be discussed to identify recirculation zones and their relation to the positive samplings of SARS-CoV-2 Ss reported by the authors.…”

Can clothing systems and human activity in operating rooms with mixed flow ventilation systems help achieve the ultraclean air requirement (≤10 CFU/m3) during orthopaedic surgeries?

“…The level of airborne microbes occurring during surgery is a result of many factors, including ventilation design and performance, human activity, number of people, clothing, room cleanliness and so on [23][24][25][26][27][28][29] . As the practical limitations of the experimental measurements, we only analyze the effect of clothing and human activity on the CFU level in our study.…”