Article ; Online: Three-year survival and distribution of lymph node metastases in gastric cancer following neoadjuvant chemotherapy: results from a European randomized clinical trial.
2023 Volume 37, Issue 9, Page(s) 7317–7324
Abstract: Background: Adequate lymphadenectomy is an important step in gastrectomy for cancer, with a modified D2 lymphadenectomy being recommended for advanced gastric cancers. When assessing a novel technique for the treatment of gastric cancer, lymphadenectomy ...
Abstract | Background: Adequate lymphadenectomy is an important step in gastrectomy for cancer, with a modified D2 lymphadenectomy being recommended for advanced gastric cancers. When assessing a novel technique for the treatment of gastric cancer, lymphadenectomy should be non-inferior. The aim of this study was to assess completeness of lymphadenectomy and distribution patterns between open total gastrectomy (OTG) and minimally invasive total gastrectomy (MITG) in the era of peri-operative chemotherapy. Methods: This is a retrospective analysis of the STOMACH trial, a randomized clinical trial in thirteen hospitals in Europe. Patients were randomized between OTG and MITG for advanced gastric cancer after neoadjuvant chemotherapy. Three-year survival, number of resected lymph nodes, completeness of lymphadenectomy, and distribution patterns were examined. Results: A total of 96 patients were included in this trial and randomized between OTG (49 patients) and MITG (47 patients). No difference in 3-year survival was observed, this was 57.1% in OTG group versus 46.8% in MITG group (P = 0.186). The mean number of examined lymph nodes per patient was 44.3 ± 16.7 in the OTG group and 40.7 ± 16.3 in the MITG group (P = 0.209). D2 lymphadenectomy of 71.4% in the OTG group and 74.5% in the MITG group was performed according to the surgeons; according to the pathologist compliance to D2 lymphadenectomy was 30% in the OTG group and 36% in the MITG group. Tier 2 lymph node metastases (stations 7-12) were observed in 19.6% in the OTG group versus 43.5% in the MITG group (P = 0.024). Conclusion: No difference in 3-year survival was observed between open and minimally invasive gastrectomy. No differences were observed for lymph node yield and type of lymphadenectomy. Adherence to D2 lymphadenectomy reported by the pathologist was markedly low. |
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MeSH term(s) | Humans ; Retrospective Studies ; Stomach Neoplasms/drug therapy ; Stomach Neoplasms/surgery ; Neoadjuvant Therapy ; Lymphatic Metastasis ; Lymph Node Excision/methods ; Gastrectomy/methods |
Language | English |
Publishing date | 2023-07-19 |
Publishing country | Germany |
Document type | Randomized Controlled Trial ; Journal Article ; Research Support, Non-U.S. Gov't |
ZDB-ID | 639039-0 |
ISSN | 1432-2218 ; 0930-2794 |
ISSN (online) | 1432-2218 |
ISSN | 0930-2794 |
DOI | 10.1007/s00464-023-10278-5 |
Database | MEDical Literature Analysis and Retrieval System OnLINE |
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