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Root-cause analysis of 762 Danish post-colonoscopy colorectal cancer patients
Publikation: Bidrag til tidsskrift/Konferencebidrag i tidsskrift /Bidrag til avis › Tidsskriftartikel › Forskning › peer review
- Frederikke Schønfeldt Troelsen ,
- Henrik Toft Sørensen
- Lars Pedersen
- Lone Dragnes Brix
- Louise Bang Grode
- Evelien Dekker, Amsterdam UMC ,
- Rune Erichsen
Background & aims: The term post-colonoscopy colorectal cancer (PCCRC) refers to colorectal cancer (CRC) diagnosed after a negative colonoscopy. Using the root-cause algorithm proposed by the World Endoscopy Organization (WEO), we aimed to investigate plausible explanations for PCCRCs and potential changes in plausible explanations for PCCRCs over time in a Danish Region.
Methods: During 1995-2021, we used national health registries and electronic medical records in the Central Denmark Region to identify PCCRC cases, defined as CRCs recorded within 6-48 months after a colonoscopy. We then applied the WEO algorithm to categorize explanations for PCCRC as follows: A) possible missed lesion, prior examination adequate; B) possible missed lesion, prior examination inadequate; C) detected lesion, not resected; or D) likely incomplete resection of previously identified lesion. PCCRCs were identified before (1995-2013) and after (2014-2021) implementation of nationwide FIT-based CRC screening and quality indicators for colonoscopy.
Results: We identified 762 PCCRCs, 53.5% among males and 57% among individuals ≥ 70 years. Forty-five percent were located in the proximal colon. We identified 616 (80.8% (95% confidence interval [CI]: 74.6%-87.5%)) category A PCCRCs; 36 (4.7% [95% CI: 3.3-6.5]) category B PCCRCs; 26 (3.4% [95% CI: 2.2-4.9] category C PCCRCs; and 84 (11% [95% CI: 8.8-13.6]) category D PCCRCs. Similar patterns were observed during the early (1995-2013) and late (2014-2021) study periods.
Conclusions: Most PCCRCs originate from possible missed lesions and incompletely resected lesions during the complete study period. These findings indicate the importance of quality assurance of colonoscopy procedures and polypectomy techniques.
Methods: During 1995-2021, we used national health registries and electronic medical records in the Central Denmark Region to identify PCCRC cases, defined as CRCs recorded within 6-48 months after a colonoscopy. We then applied the WEO algorithm to categorize explanations for PCCRC as follows: A) possible missed lesion, prior examination adequate; B) possible missed lesion, prior examination inadequate; C) detected lesion, not resected; or D) likely incomplete resection of previously identified lesion. PCCRCs were identified before (1995-2013) and after (2014-2021) implementation of nationwide FIT-based CRC screening and quality indicators for colonoscopy.
Results: We identified 762 PCCRCs, 53.5% among males and 57% among individuals ≥ 70 years. Forty-five percent were located in the proximal colon. We identified 616 (80.8% (95% confidence interval [CI]: 74.6%-87.5%)) category A PCCRCs; 36 (4.7% [95% CI: 3.3-6.5]) category B PCCRCs; 26 (3.4% [95% CI: 2.2-4.9] category C PCCRCs; and 84 (11% [95% CI: 8.8-13.6]) category D PCCRCs. Similar patterns were observed during the early (1995-2013) and late (2014-2021) study periods.
Conclusions: Most PCCRCs originate from possible missed lesions and incompletely resected lesions during the complete study period. These findings indicate the importance of quality assurance of colonoscopy procedures and polypectomy techniques.
| Originalsprog | Engelsk |
|---|---|
| Tidsskrift | Clinical Gastroenterology and Hepatology |
| Vol/bind | 21 |
| Nummer | 12 |
| Sider (fra-til) | 3160-3169.e5 |
| ISSN | 1542-3565 |
| DOI | |
| Status | E-pub ahead of print - apr. 2023 |
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