733
Participants
Start Date
March 1, 2021
Primary Completion Date
November 5, 2021
Study Completion Date
December 5, 2021
6-minute then 9-minute withdrawal
"Patients in 6-minute then 9-minute withdrawal group will first be carefully observed in 2 minutes then in 3 minutes during each colonic segment.~In actual performance, withdrawal of the right colon, transverse colon and the left colon can be operated in segmental tandem colonoscopy. Taking the right colon as an example, after the endoscope reaches the cecum, it can be withdrawn to the splenic curvature in 2 minutes, then reentered the cecum and withdrawn to the splenic curvature in 3 minutes."
9-minute then 6-minute withdrawal
"Patients in 9-minute then 6-minute withdrawal group will first be carefully observed in 3 minutes then in 2 minutes during each colonic segment.~In actual performance, withdrawal of the right colon, transverse colon and the left colon can be operated in segmental tandem colonoscopy. Taking the right colon as an example, after the endoscope reaches the cecum, it can be withdrawn to the splenic curvature in 3 minutes, then reentered the cecum and withdrawn to the splenic curvature in 2 minutes."
Changhai Hospital, Second Military Medical University, Shanghai
No.85 Hospital, Changning, Shanghai, China
OTHER
Yantaishan Hospital of Yantai City, Yantai, China
UNKNOWN
Seventh Medical Center of PLA Army General Hospital
OTHER
The First Affiliated Hospital of Dalian Medical University
OTHER
The First Affiliated Hospital of the Medical College, Shihezi University
UNKNOWN
Shanghai 8th People's Hospital
OTHER
Shanxi Provincial People's Hospital
OTHER_GOV
Qinghai People's Hospital
OTHER
Leqing People's Hospital
UNKNOWN
Affiliated Hospital of North Sichuan Medical College
OTHER
Zhejiang University
OTHER
Songjiang Hospital Affiliated to Shanghai Jiaotong University School of Medicine
OTHER_GOV
The General Hospital of Eastern Theater Command
OTHER
Heilongjiang provincial hospital
UNKNOWN
The Second Hospital of Hebei Medical University
OTHER
Changhai Hospital
OTHER