The Study of Colorectal Neoplastic Polyps Miss Rate Determined by Back-to-Back Colonoscopies in Asymptomatic Subjects for Colorectal Cancer Screening

Not Applicable

Completed

• Conditions: Screening intervention; Colorectal polyps; Miss rate; Back- to- Back Colonoscopies; Colorectal screening

• Registration Number: TCTR20150811001
• Lead Sponsor: The Gastroenterological Association of Thailand

Brief Summary

Not available

Detailed Description

Not available

Study Timeline

• Study Completion: 2015-04-06
• Study Start: 2015-08-11
• Last Update Posted: 19 August 2024

Recruitment & Eligibility

• Status: Completed
• Sex: All
• Target Recruitment: 109

Inclusion Criteria

Asymptomatic subjects aged 50 to 75 years old who participated in a health promotion program at the King Chulalongkorn Memorial Hospital were recruited.

Exclusion Criteria

1. Family history of hereditary colorectal cancer (≥ 2 first degree relatives with CRC or at least 1 first degree relative with CRC before 60 years)
2. inflammatory bowel disease,
3. prior history of colorectal cancer
4. previous colorectal surgery
5. severe coexisting illness (American Society of Anesthesiologists grade 3 or 4)
6. previous colon examination (endoscopy and radiological imaging) within 5 years
6. symptoms of lower GI tract (a lower gastrointestinal bleeding, bowel habit changes, unexplained weight loss, and anemia)

Study & Design

• Study Type: Observational
• Study Design: Not specified

Primary Outcome Measures

Name	Time	Method
The polyp miss rate while performing colonoscopy After second colonoscopy in the same day Number of missed polyps

Secondary Outcome Measures

Name	Time	Method
The independent factors that influence miss rate determined by same day back-to-back colonoscopies After second colonoscopy in the same day cecal intubation time, colonoscopic withdrawal time, location of polyps, morphology of polyps, size