TY - JOUR
T1 - Airborne bacterial contamination during orthopedic surgery
T2 - A randomized controlled pilot trial
AU - Oguz, Ruken
AU - Diab-Elschahawi, Magda
AU - Berger, Jutta
AU - Auer, Nicole
AU - Chiari, Astrid
AU - Assadian, Ojan
AU - Kimberger, Oliver
N1 - No record of this in Eprints. HN 02/11/2017
PY - 2017/5
Y1 - 2017/5
N2 - Study objective Several factors such as lack of unidirectional, turbulent free laminar airflow, duration of surgery, patient warming system, or the number of health professionals in the OR have been shown or suspected to increase the number of airborne bacteria. The objective of this study was to perform a multivariate analysis of bacterial counts in the OR in patients during minor orthopedic surgery. Design Prospective, randomized pilot study. Setting Medical University of Vienna, Austria. Patients Eighty patients undergoing minor orthopedic surgery were included in the study. Interventions Surgery took place in ORs with and without a unidirectional turbulent free laminar airflow system, patients were randomized to warming with a forced air or an electric warming system. Measurement The number of airborne bacteria was measured using sedimentation agar plates and nitrocellulose membranes at 6 standardized locations in the OR. Main results The results of the multivariate analysis showed, that the absence of unidirectional turbulent free laminar airflow and longer duration of surgery increased bacterial counts significantly. The type of patient warming system and the number of health professionals had no significant influence on bacterial counts on any sampling site. Conclusion ORs with unidirectional turbulent free laminar airflow, and a reduction of surgery time decreased the number of viable airborne bacteria. These factors may be particularly important in critical patients with a high risk for the development of surgical site infections.
AB - Study objective Several factors such as lack of unidirectional, turbulent free laminar airflow, duration of surgery, patient warming system, or the number of health professionals in the OR have been shown or suspected to increase the number of airborne bacteria. The objective of this study was to perform a multivariate analysis of bacterial counts in the OR in patients during minor orthopedic surgery. Design Prospective, randomized pilot study. Setting Medical University of Vienna, Austria. Patients Eighty patients undergoing minor orthopedic surgery were included in the study. Interventions Surgery took place in ORs with and without a unidirectional turbulent free laminar airflow system, patients were randomized to warming with a forced air or an electric warming system. Measurement The number of airborne bacteria was measured using sedimentation agar plates and nitrocellulose membranes at 6 standardized locations in the OR. Main results The results of the multivariate analysis showed, that the absence of unidirectional turbulent free laminar airflow and longer duration of surgery increased bacterial counts significantly. The type of patient warming system and the number of health professionals had no significant influence on bacterial counts on any sampling site. Conclusion ORs with unidirectional turbulent free laminar airflow, and a reduction of surgery time decreased the number of viable airborne bacteria. These factors may be particularly important in critical patients with a high risk for the development of surgical site infections.
KW - Airborne bacterial deposition
KW - Laminar flow
KW - Operating room safety
KW - Orthopedic surgery
KW - Patient warming
UR - http://www.scopus.com/inward/record.url?scp=85013054803&partnerID=8YFLogxK
U2 - 10.1016/j.jclinane.2017.02.008
DO - 10.1016/j.jclinane.2017.02.008
M3 - Article
AN - SCOPUS:85013054803
VL - 38
SP - 160
EP - 164
JO - Journal of Clinical Anesthesia
JF - Journal of Clinical Anesthesia
SN - 0952-8180
ER -