Use of 2 Observers Increases Adenoma Detection Rate During Colonoscopy: Systematic Review and Meta-analysis

Clin Gastroenterol Hepatol. 2020 May;18(5):1240-1242.e3. doi: 10.1016/j.cgh.2019.07.033. Epub 2019 Oct 4.


Current efforts are directed toward improving quality metrics such as adenoma/polyp detection rates during colonoscopy to decrease the incidence of colorectal cancer.1 Previous studies have reported variable detection rates for adenomas/polyps during colonoscopy for active participation/observation by nurses, trainees, and/or technician (dual observer [DO] group) with an endoscopist.2,3 We performed a systematic review and meta-analysis to evaluate the detection rate of adenomas/polyps during colonoscopy via DO versus single observers (ie, endoscopist alone).

Publication types

  • Meta-Analysis
  • Systematic Review

MeSH terms

  • Adenoma* / diagnosis
  • Adenomatous Polyps*
  • Colonic Polyps*
  • Colonoscopy
  • Colorectal Neoplasms* / diagnosis
  • Humans
  • Incidence