Remnant Gastric Cancer Surgical Management

Remnant gastric cancer arises in the residual stomach after a prior partial gastrectomy and poses distinct surgical challenges owing to altered anatomy, dense adhesions and variations in lymphatic drainage. Completion total gastrectomy with radical lymphadenectomy remains the cornerstone of curative treatment, yet achieving adequate nodal harvest can be difficult. Surgical planning hinges on thorough preoperative assessment of tumour extent and vascular involvement, with intraoperative strategies tailored to minimise blood loss and preserve function. Recent advances in minimally invasive techniques have extended the applicability of laparoscopic approaches, which offer reduced postoperative morbidity without compromising oncological radicality. Prognostic stratification—historically reliant on conventional TNM nodal staging—has evolved to include parameters such as lymph node ratio, tumour invasion depth and venous invasion. An individualised balance between surgical radicality and perioperative risk is essential to improve global outcomes and guide adjuvant therapy decisions.

Research from Nature Portfolio

Recent analyses have supported the adoption of lymph node ratio as a superior prognostic tool in remnant gastric cancer. In a multicentre cohort of over two hundred patients undergoing R0 resection with limited nodal harvest, lymph node ratio stratification outperformed conventional nodal staging in predicting five-year overall survival. Subdivision into rN0 through rN3 categories correlated closely with survival outcomes, identifying lymphovascular invasion and tumour size as additional independent prognostic indicators. This approach offers a more accurate framework for postoperative risk assignment and guiding adjuvant therapy decisions in patients with inadequate lymph node retrieval.

Remnant Gastric Cancer Surgical Management publication trend

The graph below shows the total number of articles in remnant gastric cancer surgical management across all publications each year (not limited to Nature Index journals).

Technical terms

R0 resection: Complete tumour removal with negative microscopic margins.

Lymph node ratio (NR): The proportion of metastatic to total retrieved lymph nodes.

Laparoscopic gastrectomy: Minimally invasive removal of the stomach using laparoscopic instruments.

Completion total gastrectomy: Resection of the remaining stomach following prior partial gastrectomy.

T stage: Depth of tumour invasion within the gastric wall as defined by TNM criteria.

Venous invasion: Histopathological presence of tumour cells within venous vessels.

References

1. The safety, feasibility, and oncological outcomes of laparoscopic completion total gastrectomy for remnant gastric cancer: a prospective study with 3-year follow-up (FUGES-004 study). International Journal of Surgery (2024).
2. Safety and feasibility of laparoscopic gastrectomy for remnant gastric cancer compared with open gastrectomy. Medicine (2021).
3. T stage and venous invasion are crucial prognostic factors for long-term survival of patients with remnant gastric cancer: a cohort study. World Journal of Surgical Oncology (2021).
4. Positive lymph node ratio is an index in predicting prognosis for remnant gastric cancer with insufficient retrieved lymph node in R0 resection. Scientific Reports (2021).