ArticleInternational journal of general medicine2026
Restaging pN Classification in Early Gastric Cancer with Inadequate Lymph Node Retrieval: Multi-Institutional Development and Prognostic Validation of a Revised Staging System.
Article in International journal of general medicine, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Objective: This study aimed to propose and validate a new and practical lymph node (LN) staging strategy to mitigate staging migration due to examined LN (ELN) retrieval and improve the accuracy of prognostic evaluation for early gastric cancer (EGC) patients. Background: EGC patients often face staging inaccuracies due to inadequate ELNs, as there is no clear standard for ELN retrieval requirements. Methods: From an initial cohort of 7001 EGC patients across fifteen large institutions in China, 6566 eligible patients were included as the training and validation cohort after applying predefined exclusion criteria. We analyzed these data to determine the optimal cutoff value for the number of ELNs, construct a prediction model, and propose a new LN staging method distinct from that of the latest AJCC guidelines. Subsequently, 2094 patients (from 2326 with survival data available in the multicenter dataset) and 1944 patients (from 5262 initially retrieved from the SEER database after exclusions) were included as independent test cohorts to evaluate model performance, including the correlation between ELNs and metastatic LNs (MLNs) and survival differences. Results: This study found that ≤20 ELNs were inadequate for accurate LN evaluation in EGC patients. In the test cohort, MLNs was positively associated with ELNs. A model was constructed, and accurate MLNs could be displayed after correction for patients with inadequate ELNs. Survival analysis revealed significant differences between patients with different pN Conclusion: Model-corrected pN
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