Dutch Gastrointestinal Endoscopy Audit: automated extraction of colonoscopy data for quality assessment and improvement

Gastrointest Endosc. 2020 Jul;92(1):154-162.e1. doi: 10.1016/j.gie.2020.01.052. Epub 2020 Feb 11.


Background and aims: The importance of having quality assessment, assurance, and improvement tools in health care is increasingly recognized. However, the additional associated administration burden progressively interferes with the structural implementation and adoption of such tools, especially when it concerns high-volume procedures such as colonoscopies. The development of the Dutch Gastrointestinal Endoscopy Audit (DGEA), a registry with automated extraction of colonoscopy quality data, and its first results are described.

Methods: In close cooperation with commercial endoscopy reporting systems and a national histopathology database, healthcare professionals performing colonoscopies initiated a quality registry that extracts data from its core hospital resource or histology database without manual interference of the healthcare providers. Data extracted consisted of patient age, gender, indication of the colonoscopy, American Society of Anesthesiologists score, Boston Bowel Preparation Score, and cecal intubation; for the colonoscopy after a positive fecal immunochemical test in the colorectal cancer screening program, other data were polyp detection rate, which was available for all 48 hospitals or endoscopy centers, and adenoma detection rate, which was available for 26 hospitals or endoscopy centers.

Results: Between January 1, 2016 and March 31, 2019, 48 hospitals or endoscopy centers voluntarily participated in the DGEA, and 275,017 unique patients with 313,511 colonoscopies were registered. Overall missing values were limited to <1%.

Conclusions: The results of this study demonstrate that it is feasible to deploy a quality registry collecting uniform data without additional administration burden for healthcare professionals.

MeSH terms

  • Adenoma
  • Cecum
  • Colonoscopy
  • Colorectal Neoplasms* / diagnosis
  • Early Detection of Cancer
  • Humans
  • Occult Blood