Effect of air exhaust location on surgical site particle distribution in an operating room
- PDF / 3,643,521 Bytes
- 10 Pages / 612 x 808 pts Page_size
- 55 Downloads / 180 Views
Effect of air exhaust location on surgical site particle distribution in an operating room Research Article
Aleyna Agirman1, Yunus Emre Cetin2 (), Mete Avci3, Orhan Aydin1 1. Department of Mechanical Engineering, Karadeniz Technical University, 61080 Trabzon, Turkey 2. Arsin Vocational School, Karadeniz Technical University, 61910 Arsin/Trabzon, Turkey 3. Department of Mechanical Engineering, Recep Tayyip Erdogan University, 53100 Rize, Turkey
Abstract
Keywords
This study investigates effect of exhaust outlet location on airflow and particle distribution in an operating room with laminar ventilation system (LAF) via computational fluid dynamics (CFD). Four different exhaust opening configurations are comparatively examined: floor level, central level, ceiling level and floor & ceiling level. Three different particle diameters (5, 10 and 20 μm) are considered for a constant value of the air change rate (30 ACH). Deposited particle numbers to operating table and to instrument table are given and compared for different particle diameters and exhaust outlet cases. It is shown that the exhaust configuration in which both floor & ceiling level air outlets employed together shows the best performance in terms of lowest particle deposition to the operating table. For this case, compared to original floor level exhaust outlet design, the total number of particles deposited on the operating table decreased by 64% for the smallest particle diameter (5 μm) and 26% for the largest particle diameter (20 μm).
operating room, exhaust outlet, particle deposition, CFD
Article History Received: 28 November 2019 Revised: 12 March 2020 Accepted: 31 March 2020 © Tsinghua University Press and Springer-Verlag GmbH Germany, part of Springer Nature 2020
1
Introduction
E-mail: [email protected]
Indoor/Outdoor Airflow and Air Quality
Operating rooms (ORs) have the largest risk among hygienic environments due the surgical site infections (SSI) in the hospitals. SSIs are defined as infections that occur in 30 days after surgical operation takes place. For implant surgeries this duration is defined as a year (Mangram et al. 2000). SSIs increase the mortality rate, length of stay in the hospitals and related health costs (Broex et al. 2009; Allegranzi et al. 2011). Economic and social burden of the SSIs vary up to gender, age, mental or physical condition of the patient as well as the operation and infection type. It is estimated that the annual expense of the periprosthetic infections in joint arthroplasty will be more than $1.6 billion by 2020 (Kurtz et al. 2012). The factors on SSIs are discussed for many decades and the reduction of SSIs is still one of the major objectives of the professionals today (Fry 2011; WHO 2016; Alfonso-Sanchez et al. 2017; Berríos-Torres et al. 2017). The contaminant level of air in the OR is considered as one of multiple factors affecting SSIs. Bacteria carrying
particles (BCPs) within air increase the risk of SSIs. Whyte et al. (1982) and Stacey and Humphreys (2002) reported that there is a significa
Data Loading...
