Related Experiment Video
Updated: May 19, 2026
Laparoscopic Radical Gastrectomy for Remnant Gastric Cancer
Published on: October 31, 2025
Short- and Long-Term Outcomes of Subtotal Gastrectomy for Remnant Gastric Cancer: A Multicenter Study
Kensuke Kudou1,2,3, Mitsuhiko Ota4, Kippei Ogaki5
1Department of Surgery and Science, Graduate School of Medical Sciences Kyushu University Fukuoka Japan.
Background:
Remnant gastric cancer (RGC) is an entity for which completion gastrectomy (CG) is considered the standard treatment. However, subtotal resection of the remnant stomach (SR) may preserve postoperative nutritional status while maintaining oncologic safety. Comparative data between these two procedures in RGC remain limited.
Methods:
A retrospective multicenter cohort study was conducted involving 133 patients who underwent surgery for RGC at five institutions. Patients were categorized into SR (n = 17) and CG (n = 116) groups, and perioperative characteristics, postoperative outcomes, and long-term survival were compared.
Results:
Operative time was significantly shorter in the SR group than in the CG group (236.4 vs. 317.3 min; p = 0.001). There were no significant differences in lymph node dissection, resection margins, or overall postoperative complication rates between the groups. The postoperative body weight loss rate was significantly lower in the SR group compared with the CG group (5.02% vs. 9.96%; p = 0.016). Overall survival and recurrence-free survival did not differ significantly between the groups.
Conclusions:
Subtotal gastrectomy for RGC was associated with reduced operative time and minimized postoperative weight loss without compromising oncologic safety. These findings suggest that SR may be a feasible alternative to CG in selected patients with RGC.
