Laminar airflow versus turbulent airflow in simulated total hip arthroplasty

Laminar airflow versus turbulent airflow in simulated total hip arthroplasty: measurements of colony-forming units, particles, and energy consumption

Research output: Contribution to journal › Journal article › Research › peer-review

Standard

Laminar airflow versus turbulent airflow in simulated total hip arthroplasty : measurements of colony-forming units, particles, and energy consumption. / Marsault, L. V.; Ravn, C.; Overgaard, A.; Frich, L. H.; Olsen, M.; Anstensrud, T.; Nielsen, J.; Overgaard, S.

In: Journal of Hospital Infection, Vol. 115, 2021, p. 117-123.

Research output: Contribution to journal › Journal article › Research › peer-review

Harvard

Marsault, LV, Ravn, C, Overgaard, A, Frich, LH, Olsen, M, Anstensrud, T, Nielsen, J & Overgaard, S 2021, 'Laminar airflow versus turbulent airflow in simulated total hip arthroplasty: measurements of colony-forming units, particles, and energy consumption', Journal of Hospital Infection, vol. 115, pp. 117-123. https://doi.org/10.1016/j.jhin.2021.06.009

APA

Marsault, L. V., Ravn, C., Overgaard, A., Frich, L. H., Olsen, M., Anstensrud, T., Nielsen, J., & Overgaard, S. (2021). Laminar airflow versus turbulent airflow in simulated total hip arthroplasty: measurements of colony-forming units, particles, and energy consumption. Journal of Hospital Infection, 115, 117-123. https://doi.org/10.1016/j.jhin.2021.06.009

Vancouver

Marsault LV, Ravn C, Overgaard A, Frich LH, Olsen M, Anstensrud T et al. Laminar airflow versus turbulent airflow in simulated total hip arthroplasty: measurements of colony-forming units, particles, and energy consumption. Journal of Hospital Infection. 2021;115:117-123. https://doi.org/10.1016/j.jhin.2021.06.009

Author

Marsault, L. V. ; Ravn, C. ; Overgaard, A. ; Frich, L. H. ; Olsen, M. ; Anstensrud, T. ; Nielsen, J. ; Overgaard, S. / Laminar airflow versus turbulent airflow in simulated total hip arthroplasty : measurements of colony-forming units, particles, and energy consumption. In: Journal of Hospital Infection. 2021 ; Vol. 115. pp. 117-123.

Bibtex

@article{8c92cc55e7d94ca3b3802f201fd4d90f,

title = "Laminar airflow versus turbulent airflow in simulated total hip arthroplasty: measurements of colony-forming units, particles, and energy consumption",

abstract = "Background: The optimal type of ventilation in operating theatres for joint arthroplasty has been debated for decades. Recently, the World Health Organization changed its recommendations based on articles that have since been criticized. The economic and environmental impact of ventilation is also currently an important research topic but has not been well investigated. Aim: To compare how large, high-volume, laminar airflow (LAF) and turbulent airflow (TAF) ventilation systems perform during standardized simulated total hip arthroplasty (THA), as they pertain to colony-forming units (cfu), particle counts, and energy consumption. Methods: Two identical operating theatres were used to perform simulated THA. The only difference was that one was equipped with LAF and the other with TAF. Cfu and particles were collected from key points in the operating theatre, and energy was measured for each simulation. Thirty-two simulations were done in total. Findings: LAF had significantly reduced cfu and particle count when compared with TAF, at both 100% and 50% air influx. Furthermore, it was shown that lowering the air influx by 50% in LAF did not significantly affect cfu or particles, although reducing the fresh air influx from 100% to 50% significantly lowered the energy consumption. Most simulations in TAF did not meet the cleanroom requirements. Conclusion: Cfu were significantly lower in LAF at both 100% and 50% air influx. It is possible to reduce fresh air influx in LAF operating theatres by 50%, significantly reducing energy consumption, while still maintaining cfu and particle counts below the ISO classification threshold required for THA surgery.",

keywords = "Energy consumption, Laminar airflow, Particle count, Total hip arthroplasty, Turbulent airflow, Ventilation",

author = "Marsault, {L. V.} and C. Ravn and A. Overgaard and Frich, {L. H.} and M. Olsen and T. Anstensrud and J. Nielsen and S. Overgaard",

note = "Publisher Copyright: {\textcopyright} 2021 The Authors",

year = "2021",

doi = "10.1016/j.jhin.2021.06.009",

language = "English",

volume = "115",

pages = "117--123",

journal = "Journal of Hospital Infection",

issn = "0195-6701",

publisher = "W.B.Saunders Co. Ltd.",

}

RIS

TY - JOUR

T1 - Laminar airflow versus turbulent airflow in simulated total hip arthroplasty

T2 - measurements of colony-forming units, particles, and energy consumption

AU - Marsault, L. V.

AU - Ravn, C.

AU - Overgaard, A.

AU - Frich, L. H.

AU - Olsen, M.

AU - Anstensrud, T.

AU - Nielsen, J.

AU - Overgaard, S.

PY - 2021

Y1 - 2021

N2 - Background: The optimal type of ventilation in operating theatres for joint arthroplasty has been debated for decades. Recently, the World Health Organization changed its recommendations based on articles that have since been criticized. The economic and environmental impact of ventilation is also currently an important research topic but has not been well investigated. Aim: To compare how large, high-volume, laminar airflow (LAF) and turbulent airflow (TAF) ventilation systems perform during standardized simulated total hip arthroplasty (THA), as they pertain to colony-forming units (cfu), particle counts, and energy consumption. Methods: Two identical operating theatres were used to perform simulated THA. The only difference was that one was equipped with LAF and the other with TAF. Cfu and particles were collected from key points in the operating theatre, and energy was measured for each simulation. Thirty-two simulations were done in total. Findings: LAF had significantly reduced cfu and particle count when compared with TAF, at both 100% and 50% air influx. Furthermore, it was shown that lowering the air influx by 50% in LAF did not significantly affect cfu or particles, although reducing the fresh air influx from 100% to 50% significantly lowered the energy consumption. Most simulations in TAF did not meet the cleanroom requirements. Conclusion: Cfu were significantly lower in LAF at both 100% and 50% air influx. It is possible to reduce fresh air influx in LAF operating theatres by 50%, significantly reducing energy consumption, while still maintaining cfu and particle counts below the ISO classification threshold required for THA surgery.

AB - Background: The optimal type of ventilation in operating theatres for joint arthroplasty has been debated for decades. Recently, the World Health Organization changed its recommendations based on articles that have since been criticized. The economic and environmental impact of ventilation is also currently an important research topic but has not been well investigated. Aim: To compare how large, high-volume, laminar airflow (LAF) and turbulent airflow (TAF) ventilation systems perform during standardized simulated total hip arthroplasty (THA), as they pertain to colony-forming units (cfu), particle counts, and energy consumption. Methods: Two identical operating theatres were used to perform simulated THA. The only difference was that one was equipped with LAF and the other with TAF. Cfu and particles were collected from key points in the operating theatre, and energy was measured for each simulation. Thirty-two simulations were done in total. Findings: LAF had significantly reduced cfu and particle count when compared with TAF, at both 100% and 50% air influx. Furthermore, it was shown that lowering the air influx by 50% in LAF did not significantly affect cfu or particles, although reducing the fresh air influx from 100% to 50% significantly lowered the energy consumption. Most simulations in TAF did not meet the cleanroom requirements. Conclusion: Cfu were significantly lower in LAF at both 100% and 50% air influx. It is possible to reduce fresh air influx in LAF operating theatres by 50%, significantly reducing energy consumption, while still maintaining cfu and particle counts below the ISO classification threshold required for THA surgery.

KW - Energy consumption

KW - Laminar airflow

KW - Particle count

KW - Total hip arthroplasty

KW - Turbulent airflow

KW - Ventilation

U2 - 10.1016/j.jhin.2021.06.009

DO - 10.1016/j.jhin.2021.06.009

M3 - Journal article

C2 - 34182062

AN - SCOPUS:85111708865

VL - 115

SP - 117

EP - 123

JO - Journal of Hospital Infection

JF - Journal of Hospital Infection

SN - 0195-6701

ER -

ID: 276274737