Prediction of Postoperative Complications and Survival in Gastric Cancer Using Preoperative Blood Markers

Gastric cancer is one of the most common cancers worldwide, especially in East Asia. Although surgery remains the main treatment, patients may experience postoperative complications and have varying long-term survival outcomes. Early identification of high-risk patients before surgery is important for improving treatment decisions and patient management. This study aims to develop a prediction model based on routinely available preoperative blood test results and clinical characteristics to estimate the risk of postoperative complications and long-term survival in patients with gastric cancer. The model will be developed and validated using data from multiple medical centers. By using easily accessible clinical information, this study seeks to provide a practical tool to help clinicians better assess patient risk before surgery, support personalized treatment planning, and improve overall patient outcomes.