Reduction of aerosol transmission in upper gastrointestinal endoscopy by using a novel endoscopic oronasal shield
10.3760/cma.j.cn321463-20241216-00575
- VernacularTitle:新型内镜口鼻屏蔽罩在上消化道内镜检查中减少气溶胶传播的研究
- Author:
Junxiong WANG
1
;
Peng LI
;
Shutian ZHANG
Author Information
1. 首都医科大学附属北京友谊医院消化内科 国家消化系统疾病临床医学研究中心 消化健康全国重点实验室 北京市消化疾病中心 消化疾病癌前病变北京市重点实验室，北京 100050
- Publication Type:Journal Article
- Keywords:
Aerosols;
Occupational exposure;
Upper gastrointestinal endoscopy;
Endoscopic oronasal shield
- From:
Chinese Journal of Digestive Endoscopy
2025;42(11):887-891
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To evaluate the effectiveness of a novel endoscopic oronasal shields in reducing aerosol transmission during upper gastrointestinal endoscopy.Methods:Patients undergoing sedated upper gastrointestinal endoscopy at Lhasa People's Hospital (December 2023-February 2024) were randomized 1∶1 via SAS 9.4 to shield or control groups. A six-channel particle counter (0.3, 0.5, 1.0, 2.5, 5.0, 10.0 μm) measured aerosol particles. The primary outcome was pre-/post-procedure aerosol variation at the endoscopist's facial position. The secondary outcome was device safety.Results:The study enrolled 100 patients (50 per group) with comparable baseline characteristics. Procedure duration showed no significant difference (7.8±3.9 min VS 8.1±4.2 min, t=0.500, P=0.615). The oronasal shield group demonstrated significantly reduced aerosol increases at 0.3 μm [(57.87±19.26)×10?/L VS (203.32±18.33)×10?/L, t=4.295, P<0.001], 0.5 μm [(19.36±3.60)×10?/L VS (64.61±12.67)×10?/L, t=4.949, P<0.001], 1.0 μm [(15.31±4.42)×10?/L VS (54.11±9.12)×10?/L, t=4.507, P<0.001], and 2.5 μm [(7.38±2.90)×10?/L VS (23.33±5.17)×10?/L, t=3.723, P<0.001]. Adverse event rates (cough, hiccups, hypoxemia, etc.) showed no significant differences ( P>0.05). Conclusion:Endoscopic oronasal shields safely reduce aerosol generation without prolonging procedure time, potentially mitigating exposure risks in endoscopy centers.
