Latest Generation High-Definition Colonoscopy Increases Adenoma Detection Rate by Trainee Endoscopists

Area of Science:

• Gastroenterology
• Medical Technology
• Endoscopy Quality Improvement

Background:

• Adenoma Detection Rate (ADR) is a key quality metric for colonoscopy.
• High-definition (HD) colonoscopy generally improves ADR over standard-definition (SD).
• Limited data exists on the impact of the newest HD colonoscopy generation on trainee ADR.

Purpose of the Study:

• To evaluate if the latest generation HD colonoscopy enhances ADR in trainee endoscopists versus the previous HD generation.
• To compare polyp detection rates (PDR), sessile serrated polyp detection rates (SSPDR), and advanced neoplasia detection rates (ANDR) between the two HD colonoscopy generations.

Main Methods:

• Retrospective analysis of 2189 patients (aged 40-79) undergoing colonoscopy by trainee endoscopists.
• Comparison of ADR, PDR, SSPDR, and ANDR between older HD and latest HD colonoscopy equipment groups.
• Logistic regression analysis to identify factors influencing adenoma detection.

Main Results:

• The latest HD colonoscopy group showed significantly higher PDR (51.69% vs. 45.98%) and ADR (40.85% vs. 35.67%).
• No significant generational differences were observed for SSPDR or ANDR.
• Multivariate analysis identified latest HD colonoscopy, older age, male sex, and longer withdrawal time as significant factors for adenoma detection.

Conclusions:

• The newest generation HD colonoscopy equipment demonstrably improves PDR and ADR among trainee endoscopists.
• Higher-resolution colonoscopy technology can enhance colonoscopy quality, particularly for endoscopists with less experience.