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E-Patient Counseling Trial (E-PACO): Computer Based Education versus Nurse Counseling for Patients to Prepare for Colonoscopy

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PDR or ADR as a quality indicator for colonoscopy.

The American Journal of Gastroenterology

|June 6, 2013

Summary

Missed colon cancers highlight the need for better screening quality. Adenoma detection rates (ADR) in the proximal colon are key, and water exchange methods show promise for improving polyp detection.

Area of Science:

Gastroenterology
Endoscopy
Cancer Prevention

Background:

Screening colonoscopy quality indicators, such as interval cancer rates and suboptimal mortality reduction in proximal colon cancer, necessitate improved performance metrics.
Small, advanced adenomas missed in the proximal colon are a significant concern, driving research into more effective detection methods.

Discussion:

Polyp detection rates (PDR) and adenoma detection rates (ADR) show correlation in the proximal colon but not the left colon, suggesting PDR may not be a reliable surrogate for ADR when including distal data.
New adjunct measures are being explored to enhance ADR, with water exchange during insertion emerging as a promising technique, consistently improving ADR during withdrawal inspection.

Key Insights:

ADR is a critical metric for monitoring colonoscopy quality, particularly for detecting precancerous lesions in the proximal colon.

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Water exchange during colonoscopy insertion appears to be a more effective method than air insufflation for improving adenoma detection rates.

Outlook:

Further research into adjunct measures like water exchange is needed to optimize colonoscopy for improved adenoma detection.
Payment reforms incorporating ADR reporting are essential for standardized quality monitoring and performance improvement in colonoscopy surveillance.