Development of a prognostic oxidative stress-immune-inflammation score and online calculators for predicting survival and recurrence in gastric cancer: a multicenter study.
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Abstract
Background: Oxidative stress, immune response, and inflammation play an important role in the occurrence and progression of gastric cancer (GC). This study is to develop a novel prognostic oxidative stress-immune-inflammation score (POSII score) and to explore the clinical value of the novel nomograms incorporating this factor in survival and recurrence risk.
Methods: This study included 3612 GC patients who underwent radical gastrectomy at three tertiary hospitals from 2009 to 2020. One hospital formed the training and internal validation cohorts, while the other two constituted the external validation cohort. Twelve hematological markers were collected and analyzed to develop the POSII score via LASSO regression. Two online calculators were developed and validated.
Results: The POSII score categorized patients into low and high POSII groups, with the low POSII group showing significantly improved 5-year overall survival (OS) and disease-free survival (DFS) rates, as well as a markedly reduced risk of recurrence (all P < 0.05). Multivariate COX regression showed that the POSII score was an independent prognostic factor. Based on the POSII score, two nomograms (OS: AUC = 0.837; DFS: AUC = 0.834, respectively) for individualized prognostic prediction were constructed. To enhance clinical usability, we further developed two user-friendly online calculators. The high-risk group had an earlier, more persistent peak of recurrence and a high incidence of multiple recurrence patterns.
Conclusion: Two novel online calculators based on the POSII score can be used as reliable tools for predicting survival and recurrence after radical gastrectomy. Our findings provide new insights into the role of cancer-related immune dysregulation, inflammation, and oxidative stress imbalances.
期刊介绍：
Uniquely positioned at the interface between various medical and surgical disciplines, Surgical Endoscopy serves as a focal point for the international surgical community to exchange information on practice, theory, and research.
Topics covered in the journal include:
-Surgical aspects of:
Interventional endoscopy,
Ultrasound,
Other techniques in the fields of gastroenterology, obstetrics, gynecology, and urology,
-Gastroenterologic surgery
-Thoracic surgery
-Traumatic surgery
-Orthopedic surgery
-Pediatric surgery
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