Effect of air exhaust location on surgical site particle distribution in an operating room

Agirman, Aleyna; Çetin, Yunus Emre; Avcı, Mete; Aydın, Orhan

doi:10.1007/s12273-020-0642-1

Cited by 24 publications

(9 citation statements)

References 50 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Such as the CS, CC and SC systems, their robustness (0.79-0.81) of the flow field were similar, but their robustness of the pollutant field have certain difference (0.74-0.86). One possible reason was the different particle filtration efficiency between the ventilation systems (Agirman et al 2020;Kong et al 2021). Therefore, according to our sampling results, particle filtration efficiency and stable flow field were essential conditions for high robustness of ventilation systems, such as SS system.…”

Section: Analysis Of Ventilation System Robustnessmentioning

confidence: 99%

“…In cleanrooms, human walking would increase the risk of microbe-carrying particles diffusion onto the manufactured product (Whyte et al 2013). Besides, operating rooms would have a great risk in the hygienic environment due to the infection of the surgical site in the hospital (Agirman et al 2020). The increase in bacteria-carrying particles concentration caused by medical staff walking was an important cause of infection at the surgical site (Liu et al 2020).…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Robustness of ventilation systems in the control of walking-induced indoor fluctuations: Method development and case study

Ren

Kong

et al. 2022

Build. Simul.

View full text Add to dashboard Cite

Walking-induced fluctuations have a significant influence on indoor airflow and pollutant dispersion. This study developed a method to quantify the robustness of ventilation systems in the control of walking-induced fluctuation control. Experiments were conducted in a full-scale chamber with four different kinds of ventilation systems: ceiling supply and side return (CS), ceiling supply and ceiling return (CC), side supply and ceiling return (SC), and side supply and side return (SS). The measured temperature, flow and pollutant field data was (1) denoised by FFT filtering or wavelet transform; (2) fitted by a Gaussian function; (3) feature-extracted for the range and time scale disturbance; and then (4) used to calculate the range scale and time scale robustness for different ventilation systems with dimensionless equations developed in this study. The selection processes for FFT filtering and wavelet transform, FFT filter cut-off frequency, wavelet function, and decomposition layers are also discussed, as well as the threshold for wavelet denoising, which can be adjusted accordingly if the walking frequency or sampling frequency differs from that in other studies. The results show that for the flow and pollutant fields, the use of a ventilation system can increase the range scale robustness by 19.7%-39.4% and 10.0%-38.8%, respectively; and the SS system was 7.0%-25.7% more robust than the other three ventilation systems. However, all four kinds of ventilation systems had a very limited effect in controlling the time scale disturbance.

show abstract

Section: Analysis Of Ventilation System Robustnessmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Robustness of ventilation systems in the control of walking-induced indoor fluctuations: Method development and case study

Ren

Kong

et al. 2022

Build. Simul.

View full text Add to dashboard Cite

show abstract

“…Of the 86 total articles investigating OR ventilation, 30 used modeling approaches to investigate the effects of HVAC components on the built environment. 31,41,[128][129][130][131][132][133][134][135][136][137]64,[138][139][140][141][142][143][144][145][146][147][121][122][123][124][125][126][127] Twenty-seven of those 30 articles utilized computational fluid dynamics (CFD) modeling. The numerical parameters in CFD models are often validated to some degree via small-scale or simplified experimental setups, or using previously published measurements.…”

Section: Modeling Studiesmentioning

confidence: 99%

“…Of the 86 total articles investigating OR ventilation, 30 used modeling approaches to investigate the effects of HVAC components on the built environment. 31,41,[128][129][130][131][132][133][134][135][136][137]64,[138][139][140][141][142][143][144][145][146][147][121][122][123][124][125][126][127] Twenty-seven of those 30 articles utilized computational fluid dynamics (CFD) modeling. 31,41,[128][129][130][131][132][133][134][135][136][137]64,[138][139][140][141][142]…”

Section: Modeling Studiesmentioning

confidence: 99%

Influence of the Built Environment on Airflow, Contamination, and Infection in the Operating Room: A Systematic Literature Review

Klimkiewicz

Gallagher

Lambrou

et al. 2022

Preprint

View full text Add to dashboard Cite

BackgroundHealthcare-associated infections (HAIs) constitute a significant financial strain on healthcare systems across the world, with surgical site infections (SSIs) being the costliest form. Despite the existence of diverse sources of infection in the operating room (OR), current literature focuses on human and procedural sources of contamination that could lead to an infection. Comparatively, the OR built environment is understudied as a potential disease transmission interface between the environment, patients, and surgical staff. This systematic literature review aims to investigate how the physical characteristics and components of the built environment impact airflow, infection risk, aerosols, particle counts, contamination, and pathogens in operating rooms.Methods and FindingsLiterature searches were conducted in the PubMed and Web of Science Core Collection databases on December 21, 2020, ultimately retrieving 2,965 articles after duplicates were removed. During abstract screening, all abstracts were independently reviewed by two authors and conflicts were resolved by a third author. All articles published since January 1, 2010, that reported primary data investigating an aspect of the built environment inside an OR in relation to airflow, contamination, and/or infection for which the full text in English was available were included. This resulted in the inclusion of 138 articles, which includes studies conducted in ORs during active surgeries, computer modeling studies, and simulations in which a real OR was used for a mock surgical procedure. Six major built environment categories were identified based on the collected literature: OR layout, disinfection systems, surgical lights, doors, ventilation, and portable airflow devices. A survey created on Qualtrics software was used to record the aspect of the built environment and the outcome of each study, as well as the relationship between the two.ConclusionsWhile OR ventilation has been studied extensively, the OR built environment as a whole is understudied in relation to airflow, contamination, and infection. The current literature is inconsistent in both its findings and subsequent recommendations, making it difficult to inform hospital design in the context of SSIs. No articles were identified that discussed respiratory infection transmission in the OR, and very few addressed healthcare worker (HCW) safety in relation to the OR built environment. The significant discrepancies in the literature identified in this review highlight the need for future studies that assess the quality and bias of these studies before firm recommendations can be made. Future work should also focus on addressing the lack information regarding respiratory infection transmission in the OR, especially in the context of HCW safety.

show abstract

“…The distribution of contaminants and pollutions in indoor environments is discussed using numerical models by Agirman et al (2020) in the paper "Effect of air exhaust location on surgical site particle distribution in an operating room", and by Zhang et al (2020) in their paper "On the capture of polar indoor air pollutants at sub-ppm level-A molecular simulation study". Looking at the effects of moisture-related issues, Lopez-Arce et al (2020) present a comprehensive review on "Building moisture diagnosis: Processing, assessing and representation of environmental data for root cause analysis of mould growth".…”

mentioning

confidence: 99%

Overview of recent researches in IAQ, ventilation, and energy conservation

Berardi

2020

Build. Simul.

View full text Add to dashboard Cite

Effect of air exhaust location on surgical site particle distribution in an operating room

Cited by 24 publications

References 50 publications

Robustness of ventilation systems in the control of walking-induced indoor fluctuations: Method development and case study

Robustness of ventilation systems in the control of walking-induced indoor fluctuations: Method development and case study

Influence of the Built Environment on Airflow, Contamination, and Infection in the Operating Room: A Systematic Literature Review

Overview of recent researches in IAQ, ventilation, and energy conservation

Contact Info

Product

Resources

About