Factors Associated with Surveillance Adenoma and Sessile Serrated Polyp Detection Rates.

Area of Science:

• Gastroenterology
• Endoscopy
• Cancer Prevention

Background:

• Adenoma detection rate (ADR) and sessile serrated polyp detection rate (SSPDR) are crucial metrics in colonoscopy surveillance.
• Limited data exists on these detection rates and their predictors during surveillance colonoscopies.

Purpose of the Study:

• To determine the ADR and SSPDR in surveillance colonoscopies.
• To identify patient, endoscopist, and procedural factors associated with these detection rates.

Main Methods:

• Retrospective review of 2416 surveillance colonoscopies performed at an academic center.
• Exclusion of cases with recent prior colonoscopy, incomplete exams, or other indications.
• Multivariable logistic regression analysis to identify predictors of ADR and SSPDR.

Main Results:

• Surveillance ADR was 49% and SSPDR was 8%.
• Higher ADR was associated with increased age, male gender, BMI, withdrawal time, and higher endoscopist screening ADR. More years since training correlated with lower ADR.
• Higher SSPDR was linked to family history of CRC and higher endoscopist screening ADR. African-American race and diabetes were associated with lower SSPDR.

Conclusions:

• Surveillance colonoscopies detect adenomas in nearly half of patients and SSPs in about 8%.
• Factors including BMI, endoscopist's screening ADR, and years since training impact ADR, while race and diabetes inversely affect SSPDR.
• Further research is required before incorporating surveillance ADR and SSPDR into quality metrics.