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Flexible Colonoscopy in Mice to Evaluate the Severity of Colitis and Colorectal Tumors Using a Validated Endoscopic Scoring System

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Correlation between proximal serrated polyp detection and clinically significant serrated polyps: inter-endoscopist

V F Parra-Pérez¹, J Watanabe Yamamoto¹, A Nago-Nago¹

¹Servicio de Gastroenterología, Policlínico Peruano Japonés, Lima, Peru.

Revista De Gastroenterologia De Mexico (English)

|July 17, 2021

Summary

Endoscopist detection rates for proximal serrated polyps (PSPs) vary significantly, correlating with both clinically significant serrated polyps (CSSPs) and adenoma detection rates (ADRs). This highlights potential challenges in identifying these colorectal cancer precursors.

Keywords:

Adenoma de colon Colon adenoma Colonoscopia Colonoscopy Colorectal cancer Cáncer colorrectal Pólipo serrato Serrated polyp

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Area of Science:

Gastroenterology
Endoscopy
Cancer Prevention

Background:

Adenoma detection rate (ADR) is a key quality indicator for colorectal cancer (CRC) prevention.
Serrated polyps are recognized as precursor lesions for CRC.
Variability in endoscopist performance can impact CRC prevention efficacy.

Purpose of the Study:

To compare the detection rates of proximal serrated polyps (PSPs) and clinically significant serrated polyps (CSSPs) among endoscopists.
To analyze the relationship between PSP and CSSP detection rates and the overall ADR.
To identify potential quality gaps in serrated polyp detection during colonoscopy.

Main Methods:

An observational, prospective, cross-sectional study involving 15 endoscopists and 1,378 colonoscopies.
Comparison of ADR, PSP, and CSSP detection rates using multivariate logistic regression.
Calculation of the association between these parameters using the Pearson correlation coefficient.

Main Results:

A wide range in PSP detection rates (1.8-17%) was observed among endoscopists.
PSP detection rate showed an almost perfect correlation with CSSP detection rate (p=0.922).
PSP detection rate strongly correlated with ADR (p=0.769).

Conclusions:

Significant variability exists in endoscopist PSP detection rates.
High correlation between PSP and CSSP detection suggests a potential underestimation of CSSPs.
The strong correlation with ADR indicates that improved PSP detection may enhance overall CRC prevention quality.