Ignite Creation Date:
2025-12-24 @ 3:53 PM
Ignite Modification Date:
2025-12-25 @ 1:58 PM
Study NCT ID:
NCT04479592
Status:
UNKNOWN
Last Update Posted:
2020-07-21
First Post:
2020-07-17
Is NOT Gene Therapy:
False
Has Adverse Events:
False
Brief Title:
Colonoscopy is an Aerosol Generating Procedure
Sponsor:
Chinese University of Hong Kong
Organization:
Study Overview
Official Title:
Colonoscopy is an Aerosol-generating Procedure and Water-immersion Technique May Decrease the Amount of Aerosol Generated
Status:
UNKNOWN
Status Verified Date:
2020-07
Last Known Status:
RECRUITING
Delayed Posting:
No
If Stopped, Why?:
Not Stopped
Has Expanded Access:
False
If Expanded Access, NCT#:
N/A
Has Expanded Access, NCT# Status:
N/A
Acronym:
None
Brief Summary:
With a commercially available particle counter, we can differentiate the particle counts of different sizes in different areas of the endoscopy room. An increase from baseline particles of \< 5um during or after the procedure would suggest that the procedure is an AGP.
In this study, the particle counter from Met One Instruments model GT-526S will be used. A particle sizer is placed within 10cm of the anus, at the level of the endoscopists' face and at the level of the endoscopy nurse assistant's face The change in the particles of different sizes would be simultaneously recorded. The results of these three locations are compared to baseline and compared with each other
In this study, the particle counter from Met One Instruments model GT-526S will be used. A particle sizer is placed within 10cm of the anus, at the level of the endoscopists' face and at the level of the endoscopy nurse assistant's face The change in the particles of different sizes would be simultaneously recorded. The results of these three locations are compared to baseline and compared with each other
Detailed Description:
Currently, the term droplet is often taken to refer to droplets \>5 microns (μm) in diameter that fall rapidly to the ground under gravity, and therefore are transmitted only over a limited distance (e.g. ≤1 m). In contrast, the term droplet nuclei refers to droplets ≤5 μm in diameter that can remain suspended in air for significant periods of time, allowing them to be transmitted over distances \>1 metre. With a commercially available particle counter, we can differentiate the particle counts of different sizes in different areas of the endoscopy room. An increase from baseline particles of \< 5um during or after the procedure would suggest that the procedure is an AGP.
In this study, the particle counter from Met One Instruments model GT-526S will be used. The study will be conducted in the Prince of Wales Hospital endoscopy centre. A particle sizer is placed within 10cm of the anus, at the level of the endoscopists' face and at the level of the endoscopy nurse assistant's face The change in the particles of different sizes would be simultaneously recorded. The results of these three locations are compared to baseline and compared with each other.
In this study, the particle counter from Met One Instruments model GT-526S will be used. The study will be conducted in the Prince of Wales Hospital endoscopy centre. A particle sizer is placed within 10cm of the anus, at the level of the endoscopists' face and at the level of the endoscopy nurse assistant's face The change in the particles of different sizes would be simultaneously recorded. The results of these three locations are compared to baseline and compared with each other.
Study Oversight
Has Oversight DMC:
False
Is a FDA Regulated Drug?:
False
Is a FDA Regulated Device?:
False
Is an Unapproved Device?:
None
Is a PPSD?:
None
Is a US Export?:
None
Is an FDA AA801 Violation?: