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Occurrence of Colorectal Cancer After a Negative Colonoscopy in Patients With Inflammatory Bowel Disease: A Systematic Review and Meta-analysis

  • 0Department of Surgery, Sapienza University of Rome, Rome, Italy giorgiabs90@libero.it.
In Vivo +

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February 28, 2024

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February 28, 2024

View abstract on PubMed

Summary

This summary is machine-generated.

Patients with inflammatory bowel disease (IBD) face a higher risk of developing post-colonoscopy colorectal cancer (PCCRC). One-third of colorectal cancers in IBD patients were detected after colonoscopy, significantly more than in non-IBD individuals.

Area Of Science

  • Gastroenterology and Oncology
  • Inflammatory Bowel Disease Research
  • Colorectal Cancer Screening

Background

  • Early detection of neoplastic lesions in inflammatory bowel disease (IBD) patients can be challenging despite current colorectal cancer (CRC) surveillance guidelines.
  • Understanding the risk of post-colonoscopy CRC (PCCRC) in IBD patients is crucial for refining surveillance strategies.

Approach

  • A systematic review and meta-analysis was conducted to evaluate the prevalence of 3-year PCCRC (PCCRC-3y) in IBD and non-IBD patients.
  • Data were extracted from three retrospective observational cohort studies adhering to World Endoscopy Organization (WEO)-endorsed definitions.
  • The primary outcome was the pooled PCCRC-3y prevalence and odds ratio (OR) comparing IBD and non-IBD cohorts.

Key Points

  • The pooled PCCRC-3y rate was significantly higher in IBD patients (30.8%) compared to non-IBD patients (6.8%), with an OR of 6.04.
  • Ulcerative colitis (UC) patients exhibited a higher PCCRC prevalence (30.9%) than Crohn's Disease (CD) patients (22.3%).
  • High heterogeneity was noted among studies evaluating PCCRC in IBD patients.

Conclusions

  • Approximately one-third of CRC cases in IBD patients are identified as PCCRC, a rate substantially exceeding that in the general population.
  • The prevalence of PCCRC is notably higher in UC patients than in CD patients.
  • Further prospective studies are warranted to elucidate specific risk factors for PCCRC development in IBD populations.

Keywords:

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