Efficacy of Second Forward-view Examination of Left Colon for Adenoma Detection During Colonoscopy

Summary

The incidence of colorectal cancer in China is increasing year by year. Studies have shown that colorectal cancer is more common in the left colon，especially in the China. Our previous study also showed a higher rate of missed adenoma in the left colon than the right colon during colonoscopy. Additionally, prolonging withdrawal time could only improve the ADR of right colon, but had limited effect on the ADR of left colon in our previous research. Our aim is to evaluate the effect of a second forward view examination of the left colon on the detection of adenoma detection during colonoscopy.

Conditions

• Colon Adenoma

Interventions

BEHAVIORAL

re-examination

During colonoscopy, the left colon was examined a second time in the forward view.

BEHAVIORAL

extended withdraw time

During colonoscopy, the left colon was examined with double basic withdrawal time in the forward view.

Sponsors & Collaborators

• No.85 Hospital, Changning, Shanghai, China

  collaborator OTHER

• Shanxi Provincial People's Hospital

  collaborator OTHER_GOV

• The General Hospital of Eastern Theater Command

  collaborator OTHER

• The Sixth Affiliated Hospital of Guangzhou Medical University

  collaborator OTHER

• Fudan University

  collaborator OTHER

• Kunshan Hospital of Traditional Chinese Medicine

  collaborator UNKNOWN

• Ningjin County Hospital

  collaborator UNKNOWN

• Qinghai People's Hospital

  collaborator OTHER

• The First Affiliated Hospital of Yangtze University

  collaborator OTHER

• Qujing NO.1 Hospital

  collaborator UNKNOWN

• Jiangxi Provincial People's Hopital

  collaborator OTHER

• Yueyang Central Hospital

  collaborator OTHER

• The First Affiliated Hospital of Hunan University of Traditional Chinese Medicine

  collaborator OTHER

• The First People's Hospital of Changde City

  collaborator OTHER

• Xuzhou Central Hospital

  collaborator OTHER

• Wenzhou Central Hospital

  collaborator OTHER

• Anhui Provincial Hospital

  collaborator OTHER_GOV

• Jiangsu Provincial People's Hospital

  collaborator OTHER

• Xiangya Hospital of Central South University

  collaborator OTHER

• Changhai Hospital

  lead OTHER

Principal Investigators

• Zhaoshen Li, MD · Changhai Hospital

Study Design

Allocation

RANDOMIZED

Purpose

DIAGNOSTIC

Masking

SINGLE

Model

PARALLEL

Eligibility

Min Age

45 Years

Max Age

85 Years

Sex

ALL

Healthy Volunteers

No

Timeline & Regulatory

Start

2023-01-01

Primary Completion

2024-01-31

Completion

2024-07-31

Countries

• China

Study Locations