sessile serrated lesion
Conditions
Interventions
Standard Colonoscopy Group:none
Second Forward-View Group:After completing a standard colonoscopy and withdrawing to the splenic flexure, the colonoscope was re-advanced to the cecum for a second examination of the proximal colon. T
Sponsors
Union Hospital, Tongji Medical College, Huazhong University of Science and Technology.
Eligibility
Sex/Gender
All
Age
40 Years to 74 Years
Inclusion criteria
Inclusion criteria: 1.Aged 40 to 74 years; 2.Undergoing colonoscopy for the first time as part of a screening program; 3.Provided written informed consent, including signature and date; 4.Willing to comply with the study protocol and participate in the entire research process.
Exclusion criteria
Exclusion criteria: 1.Severe heart failure (Classification of NYHA heart function III or IV); 2.Recent acute myocardial infarction or unstable angina; 3.Uncontrolled hypertension; 4.Chronic kidney disease; 5.Suspected intestinal obstruction or perforation; 6.Coagulation disorders; 7.Presence of hereditary polyposis syndromes, such as familial adenomatous polyposis or Peutz-Jeghers syndrome; 8.Inflammatory bowel disease or intestinal tuberculosis; 9.Liver cirrhosis or ascites; 10.Pregnant or breastfeeding women; 11.Psychiatric disorders that impair compliance with the examination; 12.Known allergy to bowel preparation agents; 13.History of prior colonoscopy; 14.History of gastrointestinal surgery or radiotherapy; 15.Inadequate bowel preparation (BBPS score <2 in any colon segment); 16.Incomplete colonoscopy (failure to reach the cecum); 17.Failure of polyp removal, inadequate tissue sampling, or absence of pathological diagnosis; 18. Subjects with various polyposis syndromes, such as familial adenomatous polyposis or Peutz-Jeghers syndrome, etc.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| proximal sessile serrated lesion detection rate; | — |
Secondary
| Measure | Time frame |
|---|---|
| proximal polyp detection rate;proximal adenoma detection rate;proximal serrated polyp detection rate;Polyp miss rate; | — |
Countries
China
Contacts
Public ContactSong Jun
Union Hospital, Tongji Medical College, Huazhong University of Science and Technology
Outcome results
None listed