Some Aspects on Contamination Control in Hospitals- Observations and Measurements
Doctoral thesis, 2019
Measurements of the cleanliness level have been performed in operating rooms classified as tissue and cells establishments for bone tissue to compare the results with the requirements given in the Tissue and Cells Directives of the European Union (EUTCD). The results show that the requirements are not always fulfilled. Common deficiencies in maintenance of e.g., HEPA filters are reported.
A theoretical study describes the influence of door-openings to the microbial air cleanliness of ultraclean air operating rooms for infection prone surgery. The results explain why door openings sometimes increase the level of airborne bacteria-carrying particles in the operating rooms. Temperature differences increase the air volume flows through the door openings and differences in concentration levels increase the contamination risks.
A comparison is presented between airborne cleanliness requirements for pharmaceutical manufacturing (EU GMP Annex 1) and recommendations for ultraclean air operating rooms and differences are discussed
A theoretical study describes the influence of door-openings to the microbial air cleanliness of ultraclean air operating rooms for infection prone surgery. The results explain why door openings sometimes increase the level of airborne bacteria-carrying particles in the operating rooms. Temperature differences increase the air volume flows through the door openings and differences in concentration levels increase the contamination risks.
A comparison is presented between airborne cleanliness requirements for pharmaceutical manufacturing (EU GMP Annex 1) and recommendations for ultraclean air operating rooms and differences are discussed
Source strength
Tissue and cells establishments
Ultraclean air operating rooms
Microbial cleanliness
Autoclaves
Contamination control
Door openings
Airborne contamination risks
SB-H8
Opponent: Prof. Guangyu Cao, Department of Energy and Process Engineering, Norwegian University of Science and Technology, Trondheim
Author
Catinka Ullmann
Chalmers, Architecture and Civil Engineering, Building Services Engineering
Within hospitals the main source of contamination is microorganisms and some of them are antibiotic resistant. The number of airborne bacteria-carrying particles in operating rooms is considered as an indicator of the risk of infections to the patient undergoing surgery susceptible to infections, for example orthopedic prosthetic surgery. Example of other areas within hospitals with cleanliness requirement are sterile supply centers and tissue and cells establishments. Contamination control requires an understanding of the complete process and if only one parameter is failing, the cleanliness requirement may not be fulfilled for the environment and the patient safety may be reduced.
The purpose of this thesis is, by an engineering approach, to increase the understanding and awareness of some contamination risks in different
environments of Swedish hospitals. The work is based on observations and results
of measurements in different environments within hospitals with focus on contamination control.
The purpose of this thesis is, by an engineering approach, to increase the understanding and awareness of some contamination risks in different
environments of Swedish hospitals. The work is based on observations and results
of measurements in different environments within hospitals with focus on contamination control.
Subject Categories
Surgery
Other Civil Engineering
Building Technologies
ISBN
978-91-7905-138-9
Doktorsavhandlingar vid Chalmers tekniska högskola. Ny serie: 4605
Publisher
Chalmers
SB-H8
Opponent: Prof. Guangyu Cao, Department of Energy and Process Engineering, Norwegian University of Science and Technology, Trondheim