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Korean J Healthc Assoc Infect Control Prev. 2017 Dec;22(2):56-62. Korean. Original Article. https://doi.org/10.14192/kjhaicp.2017.22.2.56
Kim KS .
Infection Control Office, Bundang Jesaeng General Hospital, Seongnam, Korea. rioriorio@naver.com
Abstract

Background

This study was conducted to evaluate the level of environment contamination before and after endotracheal suctioning using an open or closed suction system in mechanically ventilated patients.

Methods

The subjects of this study included 60 patients who were mechanically ventilated from December 2016 to May 2017. Before and after application of an open or closed suction system, blood agar plates (BAPs) were placed 50 cm and 100 cm from the suction port and exposed for 30 minutes. The number of colonies in the BAP culture media was measured.

Results

There was a significant difference in the number of colonies on BAPs exposed before and after applying the open suction system at distances of 50 cm (1st; P=0.002, 2nd; P≤0.001) and 100 cm (1st; P=0.040, 2nd; P≤0.001) on both the first day and second day. There was a significant difference in the number of colonies on BAPs exposed before and after applying the closed suction system at the distance of 100 cm (P=0.009) on the first day and at the distance of 50 cm (P=0.043) on the second day. When the open suction system was applied, it was confirmed that the number of colonies was higher after than before suction.

Conclusion

The closed suction system is more effective in reducing environmental contamination in hospitals.

Copyright © 2019. Korean Association of Medical Journal Editors.