FIELD MEASUREMENT OF AIRBORNE PARTICULATE MATTERS CONCENTRATION IN A HOSPITAL’S OPERATING ROOM

2015 ◽  
Vol 77 (30) ◽  
Author(s):  
Haslinda Mohamed Kamar ◽  
Nazri Kamsah ◽  
Wong Keng Yinn ◽  
Md. Nor Musa ◽  
Muhd Suhaimi Deris
Keyword(s):  
Operating Room ◽  
Field Measurement ◽  
High Efficiency ◽  
Air Flow ◽  
Operating Table ◽  
Particulate Matters ◽  
Site Infection ◽  
Airborne Particulate ◽  
Rest Condition ◽  
Laminar Air Flow

In a hospital operating room, adequate air flow and cleanliness are crucial to protect the patient from surgical site infection (SSI) during a procedure. The probability of the patient to get the infection is related to the concentration of bacteria carrying particles inside the room. This paper presents a field measurement study to quantify the concentration of particulate matters (PM) in a hospital operating room which complies with the ISO Class 7 requirements. The operating room was equipped with High Efficiency Particulate Air (HEPA) filters and a vertical laminar air flow (LAF) system. The measurements were conducted at three height levels from the floor namely 1.2 m, 1.8 m and 2.4 m. The data was logged at a rest condition, in accordance to the ISO 14644-1 requirements. A HPC300 particle counter was used to measure the concentrations of particulate matters namely PM0.5, PM1 and PM5. The results show that the concentrations of all particulate matters were higher at the height level of 1.2 m compared to other height levels. The concentration of PM0.5 was relatively higher than PM1 and PM5 in the vicinity of operating table.

Impact of different-sized laminar air flow versus no laminar air flow on bacterial counts in the operating room during orthopedic surgery

2011 ◽  
Vol 39 (7) ◽  
pp. e25-e29 ◽  
Author(s):  
Magda Diab-Elschahawi ◽  
Jutta Berger ◽  
Alexander Blacky ◽  
Oliver Kimberger ◽  
Ruken Oguz ◽  
...  
Keyword(s):  
Operating Room ◽  
Orthopedic Surgery ◽  
Air Flow ◽  
Bacterial Counts ◽  
Laminar Air Flow

scholarly journals Laminar air flow reduces particle load in TKA—even outside the LAF panel: a prospective, randomized cohort study

2020 ◽  
Author(s):  
Stephanie Kirschbaum ◽  
Hagen Hommel ◽  
Peggy Strache ◽  
Roland Horn ◽  
Roman Falk ◽  
...  
Keyword(s):  
Infection Prevention ◽  
Protective Factor ◽  
Fine Particles ◽  
Air Flow ◽  
Operating Table ◽  
Level Of Evidence ◽  
Airborne Contamination ◽  
Total Knee ◽  
Major Increase ◽  
Laminar Air Flow

Abstract Purpose Released particles are a major risk of airborne contamination during surgery. The present prospective study investigated the quantitative and qualitative particle load in the operating room (OR) depending on location, time of surgery and use of laminar air flow (LAF) system. Methods The particle load/m3 was measured during the implantation of 12 total knee arthroplasties (6 × LAF, 6 × Non-LAF) by using the Met One HHPC 6 + device (Beckmann Coulter GmbH, Germany). Measurement was based on the absorption and scattering of (laser) light by particles and was performed at three different time-points [empty OR, setting up, ongoing operation) at 3 fixed measurement points [OR table (central LAF area), anaesthesia tower (marginal LAF area), surgical image amplifier (outside LAF area)]. Results Independent of time and location, all measurements showed a significantly higher particle load in the Non-LAF group (p < 0.01). With ongoing surgical procedure both groups showed increasing particle load. While there was a major increase of fine particles (size < 1 µm) with advancing activity in the LAF group, the Non-LAF group showed higher particle gain with increasing particle size. The lowest particle load in the LAF group was measured at the operating column, increasing with greater distance from the operating table. The Non-LAF group presented a significantly higher particle load than the LAF group at all locations. Conclusion The use of a LAF system significantly reduces the particle load and therefore potential bacterial contamination regardless of the time or place of measurement and therefore seems to be a useful tool for infection prevention. As LAF leads to a significant decrease of respirable particles, it appears to be a protective factor for the health of the surgical team regardless of its use in infection prevention. Level of evidence I.

P15.07 Laminar Air Flow (LAP) Ventilation in Operating Room: the Need for a Control System to Ensure the Usefulness of its Installation

2006 ◽  
Vol 64 ◽  
pp. S81 ◽  
Author(s):  
C. Pasquarella ◽  
G.E. Sansebastiano ◽  
R. Albertini ◽  
E. Saccani ◽  
M. Fanti ◽  
...  
Keyword(s):  
Control System ◽  
Operating Room ◽  
Air Flow ◽  
Laminar Air Flow

The Effect of Laminar Air Flow and Door Openings on Operating Room Contamination

2013 ◽  
Vol 28 (9) ◽  
pp. 1482-1485 ◽  
Author(s):  
Eric B. Smith ◽  
Ibrahim J. Raphael ◽  
Mitchell G. Maltenfort ◽  
Sittisak Honsawek ◽  
Kyle Dolan ◽  
...  
Keyword(s):  
Operating Room ◽  
Air Flow ◽  
Laminar Air Flow

scholarly journals Optimization of recirculating laminar air flow in operating room air conditioning systems

2016 ◽  
Vol 6 (2) ◽  
pp. 115-120
Author(s):  
Enver Yalcin ◽  
Mehmet Ziya Sogut ◽  
Seckin Erdogmus ◽  
Hikmet Karakoc
Keyword(s):  
Laminar Flow ◽  
Operating Room ◽  
Air Conditioning ◽  
Air Flow ◽  
Operating Rooms ◽  
Flow Energy ◽  
Flow Device ◽  
Laminar Air Flow ◽  
Almost All ◽  
Air Conditioning Systems

The laminar flow air-conditioning system with 100% fresh air is used in almost all operating rooms without discrimination in Turkey. The laminar flow device which is working with 100% fresh air should be absolutely used in Type 1A operating rooms. However, there is not mandatory to use of 100% fresh air for Type 1B defined as places performed simpler operation. Compared with recirculating laminar flow, energy needs of the laminar flow with 100 % fresh air has been emerged about 40% more than re-circulated air flow. Therefore, when a recirculating laminar flow device is operated instead of laminar flow system with 100% fresh air in the Type 1B operating room, annual energy consumption will be reduced. In this study, in an operating room with recirculating laminar flow, optimal conditions have been investigated in order to obtain laminar flow form by analyzing velocity distributions at various supply velocities by using computational fluid dynamics method (CFD).

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