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Related Experiment Video

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Endoscopist factors that influence serrated polyp detection: a multicenter study.

Seth D Crockett1, Rebecca A Gourevitch2, Michele Morris3

  • 1Division of Gastroenterology and Hepatology, University of North Carolina School of Medicine, Chapel Hill, North Carolina, United States.

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Gastroenterology training, recent completion of practice, and higher colonoscopy volumes improve serrated polyp detection rates. These factors are crucial for identifying these colorectal cancer precursors effectively.

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Area of Science:

  • Gastroenterology
  • Colorectal Cancer Prevention
  • Endoscopy Quality Improvement

Background:

  • Serrated polyps are critical precursors to colorectal cancer.
  • Detection rates for serrated polyps during colonoscopy vary significantly.
  • Understanding factors influencing serrated polyp detection is essential for quality improvement.

Purpose of the Study:

  • To identify key drivers of variation in serrated polyp detection rate (SPDR).
  • To analyze endoscopist characteristics associated with improved SPDR in a large multicenter study.

Main Methods:

  • A cross-sectional study analyzed colonoscopy and pathology reports from four US centers over two years.
  • A natural language processing algorithm extracted polyp data (size, location, histology).
  • Multivariable logistic regression identified factors associated with SPDR (defined as ≥1 serrated polyp).

Main Results:

  • The study included 104,618 colonoscopies performed by 201 endoscopists.
  • Overall mean SPDR was 5.1%, with significant variation (0-18.8%).
  • Gastroenterology specialty, fewer years in practice (≤9), and higher procedure volumes were linked to higher SPDR.

Conclusions:

  • Gastroenterology specialization, recent training completion, and higher procedure volume are associated with increased serrated polyp detection.
  • Both continuous training and procedural experience likely enhance the detection of these important cancer precursors.
  • Further strategies are needed to optimize SPDR and improve colorectal cancer prevention.