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[Additional polyp detection rate using colonoscopic retroflexion in right colon].

Heung Up Kim1, Sun Jin Boo1, Soo Young Na1

  • 1Department of Internal Medicine, Jeju National University School of Medicine, Jeju, Korea.

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Retroflexion (RF) in the right colon (RC) significantly improves polyp detection during colonoscopy, identifying an additional 4.88% of polyps. This safe and effective technique enhances the detection of hidden polyps, particularly in older patients.

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Area of Science:

  • Gastroenterology
  • Endoscopy
  • Colorectal Cancer Screening

Background:

  • Retroflexion (RF) in the right colon (RC) is suggested to reduce polyp miss rates.
  • This study evaluates the added benefit of the RF technique in the RC during colonoscopy.

Purpose of the Study:

  • To assess the additional polyp detection rate using retroflexion in the right colon.
  • To determine the safety and efficacy of the RF technique in the RC.

Main Methods:

  • Retrospective review of colonoscopy records from May 2008 to April 2011.
  • RF was attempted in most patients, excluding specific contraindications.
  • The right colon was examined by direct vision, then by RF, and finally re-examined by direct view.

Main Results:

  • The cumulative RF success rate in the RC was 78.84%, improving with experience.
  • An additional 4.88% of polyps and 3.32% of adenomas were detected solely by RF.
  • Higher detection rates were observed in older patients; no severe complications were reported.

Conclusions:

  • Retroflexion in the right colon is a safe and effective method for detecting additional polyps.
  • This technique increases the overall polyp detection rate during colonoscopy, aiding in colorectal cancer prevention.