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Surgical Endoscopy
Published in: Surgical Endoscopy 9/2020

01-09-2020 | Endoscopy

Ambient air pollution in gastrointestinal endoscopy unit

Authors: Chang Seok Bang, Keunwook Lee, Young Joo Yang, Gwang Ho Baik

Published in: Surgical Endoscopy | Issue 9/2020

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Abstract

Background

The gastrointestinal endoscopy unit is frequently exposed to gastrointestinal gas expelled from patients and electrocoagulated tissue through carbonation. This can be potentially harmful to the health of not only the healthcare personnel but also patients who undergo endoscopy. This study aimed to measure the air quality in the endoscopy unit.

Methods

We measured indoor air quality indices (CO2, total volatile organic compounds (VOCs), PM2.5, NO2, CO, and ozone) using portable passive air quality monitoring sensors in the procedural area, recovery area, and cleansing-of-equipment area, at 1-min intervals for 1 week, and the type and number of endoscopic procedures were recorded.

Results

CO2, PM2.5, NO2, and ozone levels were the highest in the cleansing area, followed by the procedural and recovery areas, and VOC level was highest in the procedural area. The proportion of poor-quality level of CO2 and VOCs was highest in the procedural area and that of NO2 was highest in the cleansing area. The proportion of tolerable to poor-quality (exceeding acceptable level) level of CO2 and total VOCs in the procedural area was 26% and 19.2% in all measurement times, respectively. The proportion of tolerable to poor-quality level of NO2 in the cleansing area of the endoscopy unit was 32.1% in all measurement times. Multivariate analyses revealed that tolerable to poor-quality (exceeding acceptable level) level of VOCs was associated with the number of endoscopic procedures (odds ratio, 1.79; 95% confidence interval, 1.42–2.27) and PM2.5 level (1.27, 1.12–1.44). Moreover, tolerable to poor-quality level of CO2 was associated with the number of colonoscopy (5.35, 1.19–24.02), especially with electrocoagulation procedures (24.31, 1.31–452.44) in the procedural area.

Conclusions

Healthcare personnel and patients who undergo endoscopy are frequently exposed to ambient air pollution. Health-related protective strategies for ambient air pollution in the endoscopy unit are warranted.

ClinicalTrials.gov registration number

NCT03724565.
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Metadata
Title
Ambient air pollution in gastrointestinal endoscopy unit
Authors
Chang Seok Bang
Keunwook Lee
Young Joo Yang
Gwang Ho Baik
Publication date
01-09-2020
Publisher
Springer US
Published in
Surgical Endoscopy / Issue 9/2020
Print ISSN: 0930-2794
Electronic ISSN: 1432-2218
DOI
https://doi.org/10.1007/s00464-019-07144-8

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