AI Article Synopsis

  • The study investigated the risks of lymph node metastasis (LNM) and treatment outcomes in patients with early esophago-gastric (EG) adenocarcinoma, focusing on the effectiveness of endoscopic resection (ER) versus radical surgery.
  • A retrospective analysis was conducted using data from 1,601 patients across 26 UK centers, revealing that the overall LNM rate was 13.5% and highlighting certain tumor characteristics that may indicate higher risks, although these factors did not predict LNM rates or survival outcomes significantly.
  • The findings suggest a need to reevaluate the predictive factors for LNM in early EG adenocarcinoma and emphasize the importance of further research to better identify patients suitable for either organ-preserving

Article Abstract

Objective: The aim of this study was to quantify LNM risk and outcomes following treatment of early esophago-gastric (EG) adenocarcinoma.

Background: The standard of care for early T1N0 EG cancer is endoscopic resection (ER). Radical surgical resection is recommended for patients perceived to be at risk of lymph node metastasis (LNM). Current models to select organ-preserving vs. surgical treatment are inconsistent.

Methods: CONGRESS is a UK-based multicentre retrospective cohort study. Patients diagnosed with clinical or pathological T1N0 EG adenocarcinoma from 2015-2022 were included. Outcomes and rates of LNM were assessed. Cox regression was performed to assess the impact of prognostic and treatment factors on overall survival.

Results: 1,601 patients from 26 centres were included, with median follow-up 32 months(IQR 14-53). 1285/1612(80.3%) underwent ER, 497/1601(31.0%) underwent surgery. Overall rate of LNM was 13.5%. On ER staging, tumour depth (T1bsm2-3 17.6% vs. T1a 7.1%), lymphovascular invasion (17.2% vs. 12.6%), or signet cells (28.6% vs. 13.0%) were associated with LNM. In multivariable regression analysis, these were not significantly associated with LNM rates or survival. Adjusting for demographic and tumour variables, surgery after ER was associated with significant survival benefit, HR 0.33(0.15-0.77),P=0.010.

Conclusion: This large multicentre dataset suggests that early EG adenocarcinoma is associated with significant risk of LNM. This data is representative of current real clinical practice with ER-based staging, and suggests previously held beliefs regarding reliability of predictive factors for LNM may need to be reconsidered. Further research to identify patients who may benefit from organ-preserving vs. surgical treatment is urgently required.

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http://dx.doi.org/10.1097/SLA.0000000000006496DOI Listing

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