NCT04981535

Brief Summary

According to preexisting data, it has revealed the fundamental role that aerosols play in the transmission of the COVID-19 virus. Esophagogastroduodenoscopy (EGD), producing particle smaller than 5 microns, was regarded as 'aerosol-generating procedures' (AGPs) associated with an increased risk of transmission of respiratory pathogens to healthcare workers. The strategies aim to reduce spreading of aerosol during the procedure should be beneficial. Using an acrylic box to cover the head of a patient undergoing an endoscopy seems to reduce aerosol scatter and reduce the spread of respiratory pathogens. At present, there are no high-quality studies that provide quantitative data on the use of head box to reduce aerosol generation.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
190

participants targeted

Target at P75+ for not_applicable

Timeline
Completed

Started Sep 2021

Shorter than P25 for not_applicable

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

July 19, 2021

Completed
10 days until next milestone

First Posted

Study publicly available on registry

July 29, 2021

Completed
2 months until next milestone

Study Start

First participant enrolled

September 30, 2021

Completed
3 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 24, 2021

Completed
6 months until next milestone

Study Completion

Last participant's last visit for all outcomes

June 30, 2022

Completed
Last Updated

November 14, 2022

Status Verified

November 1, 2022

Enrollment Period

3 months

First QC Date

July 19, 2021

Last Update Submit

November 11, 2022

Conditions

Keywords

Upper gastrointestinal endoscopyEGDCOVID-19Aerosol-generating procedureHead box

Outcome Measures

Primary Outcomes (1)

  • The amount of aerosol particles measured on the face of th endoscopist performing an upper gastrointestinal endoscopy

    Aerosol particles measured by portable particle counter as count per cubic foot

    5 months

Study Arms (2)

Patients undergoing upper gastrointestinal endoscopy with head box

EXPERIMENTAL

experimental group

Device: Head box during upper gastrointestinal endoscopy

Patients undergoing upper gastrointestinal endoscopy without head box

NO INTERVENTION

standard of care group

Interventions

"็Head box" is an acrylic box over a patient's head who undergoing upper gastrointestinal endoscopy.

Patients undergoing upper gastrointestinal endoscopy with head box

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Patients who indicated in upper gastrointestinal endoscopy and undergoing endoscopy at Excellence Center For GI Endoscopy, King Chulalongkorn Memorial Hospital, Thailand
  • Age of 18 years or more

You may not qualify if:

  • Patients with a high risk of conscious sedation who need an anesthetist
  • Patients with refusal to participate in clinical research
  • Patients who cannot make medical decisions on their own
  • Patients who underwent therapeutic endoscopy

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

King Chulalongkorn Memorial Hospital

Bangkok, 10330, Thailand

Location

Related Publications (8)

  • Meselson M. Droplets and Aerosols in the Transmission of SARS-CoV-2. N Engl J Med. 2020 May 21;382(21):2063. doi: 10.1056/NEJMc2009324. Epub 2020 Apr 15. No abstract available.

  • Hennessy B, Vicari J, Bernstein B, Chapman F, Khaykis I, Littenberg G, Robbins D. Guidance for resuming GI endoscopy and practice operations after the COVID-19 pandemic. Gastrointest Endosc. 2020 Sep;92(3):743-747.e1. doi: 10.1016/j.gie.2020.05.006. Epub 2020 May 11. No abstract available.

  • Yu IT, Li Y, Wong TW, Tam W, Chan AT, Lee JH, Leung DY, Ho T. Evidence of airborne transmission of the severe acute respiratory syndrome virus. N Engl J Med. 2004 Apr 22;350(17):1731-9. doi: 10.1056/NEJMoa032867.

  • Somsen GA, van Rijn CJM, Kooij S, Bem RA, Bonn D. Measurement of small droplet aerosol concentrations in public spaces using handheld particle counters. Phys Fluids (1994). 2020 Dec 1;32(12):121707. doi: 10.1063/5.0035701.

  • Chan SM, Ma TW, Chong MK, Chan DL, Ng EKW, Chiu PWY. A Proof of Concept Study: Esophagogastroduodenoscopy Is an Aerosol-Generating Procedure and Continuous Oral Suction During the Procedure Reduces the Amount of Aerosol Generated. Gastroenterology. 2020 Nov;159(5):1949-1951.e4. doi: 10.1053/j.gastro.2020.07.002. Epub 2020 Jul 7. No abstract available.

  • Sagami R, Nishikiori H, Sato T, Tsuji H, Ono M, Togo K, Fukuda K, Okamoto K, Ogawa R, Mizukami K, Okimoto T, Kodama M, Amano Y, Murakami K. Aerosols Produced by Upper Gastrointestinal Endoscopy: A Quantitative Evaluation. Am J Gastroenterol. 2021 Jan 1;116(1):202-205. doi: 10.14309/ajg.0000000000000983.

  • Gregson FKA, Shrimpton AJ, Hamilton F, Cook TM, Reid JP, Pickering AE, Pournaras DJ, Bzdek BR, Brown J; AERATOR group. Identification of the source events for aerosol generation during oesophago-gastro-duodenoscopy. Gut. 2022 May;71(5):871-878. doi: 10.1136/gutjnl-2021-324588. Epub 2021 Jun 29.

  • Pittayanon R, Faknak N, Ananchuensook P, Prasoppokakorn T, Plai-Dum S, Thummongkhol T, Paitoonpong L, Rerknimitr R. Amount of contamination on the face shield of endoscopists during upper endoscopy between patients in two positions: A randomized study. J Gastroenterol Hepatol. 2021 Jul;36(7):1913-1919. doi: 10.1111/jgh.15416. Epub 2021 Feb 18.

MeSH Terms

Conditions

COVID-19

Condition Hierarchy (Ancestors)

Pneumonia, ViralPneumoniaRespiratory Tract InfectionsInfectionsVirus DiseasesCoronavirus InfectionsCoronaviridae InfectionsNidovirales InfectionsRNA Virus InfectionsLung DiseasesRespiratory Tract Diseases

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Associate Professor

Study Record Dates

First Submitted

July 19, 2021

First Posted

July 29, 2021

Study Start

September 30, 2021

Primary Completion

December 24, 2021

Study Completion

June 30, 2022

Last Updated

November 14, 2022

Record last verified: 2022-11

Data Sharing

IPD Sharing
Will not share

Locations