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GRIm Score Predicts Curative Conversion Surgery in Unresectable Gastric Cancer.

Tomoyuki Nagata1, Sae Morishita1, Yuya Arimura1

  • 1Department of Surgery, Omihachiman Community Medical Center, Omihachiman, Japan.

Cancer Diagnosis & Prognosis
|May 4, 2026
PubMed
Summary
This summary is machine-generated.

The Gustave Roussy Immune (GRIm) score predicts successful conversion surgery and improves survival in patients with unresectable gastric cancer. A low GRIm score is associated with achieving R0 resection and better overall survival.

Keywords:
GRIm scoreGastric cancerR0 resectionbiomarkerconversion surgery

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Area of Science:

  • Oncology
  • Surgical Oncology
  • Gastroenterology

Background:

  • Conversion surgery offers survival benefits for initially unresectable gastric cancer if R0 resection is achieved.
  • Predictors for successful R0 conversion surgery are currently limited.
  • The Gustave Roussy Immune (GRIm) score is a potential pre-treatment biomarker.

Purpose of the Study:

  • To evaluate the Gustave Roussy Immune (GRIm) score's ability to predict R0 resection.
  • To assess the GRIm score's association with overall survival in patients undergoing conversion surgery for gastric cancer.

Main Methods:

  • Retrospective analysis of 57 patients with unresectable advanced gastric cancer treated with chemotherapy.
  • Evaluation of the GRIm score (albumin, LDH, NLR) and clinicopathological factors as predictors of R0 resection.
  • Assessment of overall survival using Kaplan-Meier analysis.

Main Results:

  • 17.5% of patients achieved R0 resection.
  • Lower GRIm scores and favorable Yoshida classifications (C1-2) were independently associated with R0 resection.
  • Patients with low GRIm scores demonstrated significantly longer overall survival.

Conclusions:

  • The GRIm score is an accessible pre-treatment biomarker for predicting R0 conversion surgery success in gastric cancer.
  • The GRIm score may enhance patient selection for conversion surgery, complementing the Yoshida classification.
  • Utilizing the GRIm score can potentially improve outcomes for patients with unresectable gastric cancer.