301
Participants
Start Date
August 4, 2021
Primary Completion Date
March 23, 2022
Study Completion Date
April 30, 2022
CO2
using CO2 insufflation to help insertion
Water
using water instead of traditional gas to help insertion
50% saline
using 50% saline solution instead of traditional gas to help insertion
25% saline
using 25% saline solution instead of traditional gas to help insertion
Evergreen General Hospital, Taoyuan District
Evergreen General Hospital, Taiwan
OTHER