Prospective blinded trial of the colonoscopic miss-rate of large colorectal polyps

Gastrointest Endosc. 1991 Mar-Apr;37(2):125-7. doi: 10.1016/s0016-5107(91)70668-8.


We prospectively studied the colonoscopic miss-rate of large colorectal polyps in a blinded trial featuring tandem colonoscopy. Sixty-three lesions greater than or equal to 1 cm in size were discovered and none were missed. Confidence intervals of 95% are a miss-rate of 0 to 4.6%. We conclude that less than 5% of large colorectal polyps are missed during the index colonoscopic examination in a well-prepared colon.

Publication types

  • Clinical Trial
  • Controlled Clinical Trial

MeSH terms

  • Aged
  • Colonic Polyps / diagnosis
  • Colonic Polyps / epidemiology*
  • Colonoscopy*
  • Confidence Intervals
  • Female
  • Humans
  • Male
  • Polyps / diagnosis
  • Polyps / epidemiology*
  • Prospective Studies
  • Rectal Neoplasms / diagnosis
  • Rectal Neoplasms / epidemiology*
  • Sensitivity and Specificity