Wide-field endoscopic mucosal resection versus endoscopic submucosal dissection for laterally spreading colorectal lesions: a cost-effectiveness analysis

Gut. 2018 Nov;67(11):1965-1973. doi: 10.1136/gutjnl-2017-313823. Epub 2017 Oct 7.


Objective: To compare the cost-effectiveness of endoscopic submucosal dissection (ESD) and wide-field endoscopic mucosal resection (WF-EMR) for removing large sessile and laterally spreading colorectal lesions (LSLs) >20 mm.

Design: An incremental cost-effectiveness analysis using a decision tree model was performed over an 18-month time horizon. The following strategies were compared: WF-EMR, universal ESD (U-ESD) and selective ESD (S-ESD) for lesions highly suspicious for containing submucosal invasive cancer (SMIC), with WF-EMR used for the remainder. Data from a large Western cohort and the literature were used to inform the model. Effectiveness was defined as the number of surgeries avoided per 1000 cases. Incremental costs per surgery avoided are presented. Sensitivity and scenario analyses were performed.

Results: 1723 lesions among 1765 patients were analysed. The prevalence of SMIC and low-risk-SMIC was 8.2% and 3.1%, respectively. Endoscopic lesion assessment for SMIC had a sensitivity and specificity of 34.9% and 98.4%, respectively. S-ESD was the least expensive strategy and was also more effective than WF-EMR by preventing 19 additional surgeries per 1000 cases. 43 ESD procedures would be required in an S-ESD strategy. U-ESD would prevent another 13 surgeries compared with S-ESD, at an incremental cost per surgery avoided of US$210 112. U-ESD was only cost-effective among higher risk rectal lesions.

Conclusion: S-ESD is the preferred treatment strategy. However, only 43 ESDs are required per 1000 LSLs. U-ESD cannot be justified beyond high-risk rectal lesions. WF-EMR remains an effective and safe treatment option for most LSLs.

Trial registration number: NCT02000141.

Keywords: colorectal adenomas; colorectal cancer; cost-effectiveness; endoscopic polypectomy; therapeutic endoscopy.

Publication types

  • Clinical Trial
  • Multicenter Study
  • Observational Study
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adult
  • Colon / pathology
  • Colon / surgery
  • Colonoscopy / economics*
  • Colonoscopy / methods
  • Colonoscopy / statistics & numerical data
  • Colorectal Neoplasms / economics
  • Colorectal Neoplasms / pathology
  • Colorectal Neoplasms / surgery*
  • Cost-Benefit Analysis
  • Decision Support Techniques
  • Endoscopic Mucosal Resection / economics*
  • Endoscopic Mucosal Resection / methods
  • Endoscopic Mucosal Resection / statistics & numerical data
  • Female
  • Health Care Costs / statistics & numerical data*
  • Humans
  • Intestinal Mucosa / pathology
  • Intestinal Mucosa / surgery
  • Male
  • Prevalence
  • Prospective Studies
  • Rectum / pathology
  • Rectum / surgery
  • Sensitivity and Specificity
  • Treatment Outcome

Associated data

  • ClinicalTrials.gov/NCT02000141