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Updated: Aug 12, 2026
Intraoperative Gastroscopy for Tumor Localization in Laparoscopic Surgery for Gastric Adenocarcinoma
Published on: August 9, 2016
Stage migration influences on stage-specific survival comparison between D1 and D3 gastric cancer surgeries
1Department of Surgery, Taipei Veterans General Hospital, and National Yang-Ming University, ShiPai Road, Taipei 112, Taiwan, ROC. cwwu@vghtpe.gov.tw
Aims:
We evaluate the influency stage migration in a randomised trial comparing D1 (N 1 lymphadenectomy) and D3 (N 1, 2 and 3 lymphadenectomy) dissections.
Methods:
Two hundred and thirteen curatively resected patients were analysed, with this TNM data.
Results:
After applying D3 patients' data according to simulated D1 staging, D3 resections were associated with up-staging to N2-3 levels in 8% of patients according to the N stage. The likelihood of N-status migration increased with increasing depth of invasion into the gastric wall. The increases in the calculated survival rate after stage migration on known 5-year survival rates were: 2% in stage IB, 1% in stage II, 4% in stage IIIA, and 1% in stage IIIB.
Conclusions:
Stage migration secondary to meticulous lymph node dissection affects stage-specific survival rates. True therapeutic survival benefit of D3 resection can only be assessed in this context.
