Ventilation design conditions associated with airborne bacteria levels within the wound area during surgical procedures: a systematic review

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Ventilation design conditions associated with airborne bacteria levels within the wound area during surgical procedures: a systematic review

Aganovic, A. (författare): Universitetet i Tromsø – Norges arktiske universitet,University of Tromsø – The Arctic University of Norway,Arctic Univ Norway, Dept Automat & Proc Engn, Klokkargardsbakken 35, N-9019 Tromso, Norway,Norwegian Univ Sci & Technol, Dept Clin & Mol Med, Trondheim, Norway

Cao, G. (författare): Norges teknisk-naturvitenskapelige universitet (NTNU),Norwegian University of Science and Technology (NTNU),Norwegian Univ Sci & Technol NTNU, Dept Energy & Proc Engn, Trondheim, Norway

Fecer, T. (författare): Vysoke Uceni Technicke V Brne,Brno University of Technology,Brno Univ Technol, Dept Comp Aided Engn & Comp Sci, Fac Civil Engn, Brno, Czech Republic

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Ljungqvist, Bengt, 1946 (författare): Chalmers tekniska högskola,Chalmers University of Technology,Chalmers Univ Technol, Dept Civil & Environm Engn, Gothenburg, Sweden

Lytsy, Birgitta, 1968- (författare): Uppsala universitet,Klinisk mikrobiologi

Radtke, A. (författare): Norges teknisk-naturvitenskapelige universitet (NTNU),Norwegian University of Science and Technology (NTNU)

Reinmüller, Berit, 1939 (författare): Chalmers tekniska högskola,Chalmers University of Technology,Chalmers Univ Technol, Dept Civil & Environm Engn, Gothenburg, Sweden

Traversari, R. (författare): Nederlandse Organisatie voor toegepast-natuurwetenschappelijk onderzoek (TNO),Netherlands Organisation for Applied Scientific Research (TNO),Netherlands Org Appl Sci Res, The Hague, Netherlands

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Elsevier BV, 2021
2021
Engelska.
Ingår i: Journal of Hospital Infection. - : Elsevier BV. - 0195-6701 .- 1532-2939. ; 113, s. 85-95

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Abstract Ämnesord

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Background: Without confirmation of the ventilation design conditions (typology and airflow rate), the common practice of identifying unidirectional airflow (UDAF) systems as equivalent to ultra-clean air ventilation systems may be misleading, but also any claims about the ineffectiveness of UDAF systems should be doubted. The aim of this review was to assess and compare ventilation system design conditions for which ultra-clean air (mean <10 cfu/m ) within 50 cm from the wound has been reported. Six medical databases were systematically searched to identify and select studies reporting intraoperative airborne levels expressed as cfu/m close to the wound site, and ventilation system design conditions. Available data on confounding factors such as the number of persons present in the operating room, number of door openings, and clothing material were also included. Predictors for achieving mean airborne bacteria levels within <10 cfu/m were identified using a penalized multivariate logistic regression model. Twelve studies met the eligibility criteria and were included for analysis. UDAF systems considered had significantly higher air volume flows compared with turbulent ventilation (TV) systems considered. Ultra-clean environments were reported in all UDAF-ventilated (N = 7) rooms compared with four of 11 operating rooms equipped with TV. On multivariate analysis, the total number of air exchange rates (P=0.019; odds ratio (OR) 95% confidence interval (CI): 0.66–0.96) and type of clothing material (P=0.031; OR 95% CI: 0.01–0.71) were significantly associated with achieving mean levels of airborne bacteria <10 cfu/m . High-volume UDAF systems complying with DIN 1946-4:2008 standards for the airflow rate and ceiling diffuser size unconditionally achieve ultra-clean air close to the wound site. In conclusion, the studied articles demonstrate that high-volume UDAF systems perform as ultra-clean air systems and are superior to TV systems in reducing airborne bacteria levels close to the wound site. 3 3 3 3

Ämnesord

TEKNIK OCH TEKNOLOGIER -- Annan teknik -- Övrig annan teknik (hsv//swe)
ENGINEERING AND TECHNOLOGY -- Other Engineering and Technologies -- Other Engineering and Technologies not elsewhere specified (hsv//eng)
TEKNIK OCH TEKNOLOGIER -- Samhällsbyggnadsteknik -- Annan samhällsbyggnadsteknik (hsv//swe)
ENGINEERING AND TECHNOLOGY -- Civil Engineering -- Other Civil Engineering (hsv//eng)
TEKNIK OCH TEKNOLOGIER -- Samhällsbyggnadsteknik -- Husbyggnad (hsv//swe)
ENGINEERING AND TECHNOLOGY -- Civil Engineering -- Building Technologies (hsv//eng)
MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin -- Infektionsmedicin (hsv//swe)
MEDICAL AND HEALTH SCIENCES -- Clinical Medicine -- Infectious Medicine (hsv//eng)

Nyckelord

Operating room
Unidirectional airflow (UDAF)
Ultra-clean air
Ventilation system
Intraoperative airborne contamination

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Av författaren/redakt...: Aganovic, A.; Cao, G.; Fecer, T.; Ljungqvist, Beng ...; Lytsy, Birgitta, ...; Radtke, A.; visa fler...; Reinmüller, Beri ...; Traversari, R.; visa färre...

Om ämnet

TEKNIK OCH TEKNOLOGIER: TEKNIK OCH TEKNO ...; och Annan teknik; och Övrig annan tekn ...

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TEKNIK OCH TEKNOLOGIER: TEKNIK OCH TEKNO ...; och Samhällsbyggnads ...; och Husbyggnad

MEDICIN OCH HÄLSOVETENSKAP: MEDICIN OCH HÄLS ...; och Klinisk medicin; och Infektionsmedici ...

Artiklar i publikationen: Journal of Hospi ...

Av lärosätet: Chalmers tekniska högskola; Uppsala universitet

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