Abstract
Purpose
In Japan, gastrectomy with D2 lymph node dissection and postoperative adjuvant chemotherapy are the standard treatments for locally advanced gastric cancer. Neoadjuvant chemotherapy (NAC) is not affected by postgastrectomy syndromes or postoperative complications. This multicenter retrospective study investigated the prognostic factors and significance of postoperative adjuvant chemotherapy in patients with advanced gastric cancer who underwent NAC followed by gastrectomy.
Methods
Consecutive patients (n = 221) with advanced gastric cancer who underwent NAC followed by curative surgery were enrolled in this study. Prognostic factors including postoperative adjuvant chemotherapy were investigated using univariate and multivariate analyses.
Results
A multivariate analysis revealed that pathological lymph node metastasis (ypN) status and postoperative adjuvant chemotherapy were independent prognostic factors for the overall and relapse-free survival. Forty-five patients (20.4%) did not receive postoperative adjuvant chemotherapy. There were no significant differences between patients with and without adjuvant chemotherapy for all factors, except age. The most common reason for not undergoing postoperative adjuvant chemotherapy was a poor condition (n = 23).
Conclusions
ypN status and postoperative adjuvant chemotherapy were independent prognostic factors in gastric cancer patients who underwent NAC followed by curative gastrectomy. It is important to maintain the patient’s condition during NAC and the perioperative period so that they can receive postoperative adjuvant chemotherapy.
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This study was supported by a grant from the Japanese Gastric Cancer Association.
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Yukinori Kurokawa has received lecture fees from Taiho Pharmaceutical, Ono Pharmaceutical, Daiichi Sankyo, Lilly, Nippon Kayaku, and Kaken Pharmaceutical and research grants from Taiho Pharmaceutical, Yakult Honsha, AstraZeneca, Ono Pharmaceutical, and MSD Oncology outside of the submitted work.
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Motoori, M., Kishi, K., Yamamoto, K. et al. Prognostic factors and significance of postoperative adjuvant chemotherapy in patients with advanced gastric cancer undergoing neoadjuvant chemotherapy followed by gastrectomy. Surg Today (2024). https://doi.org/10.1007/s00595-024-02853-7
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DOI: https://doi.org/10.1007/s00595-024-02853-7