Up to 20% of gastric cancer patients experience unintentional loss of their pretreatment body weight. Malnutrition contributes to increased morbidity, higher risk of perioperative complications and systemic toxicity. A standardized approach to evaluate the nutritional status of gastric cancer patients is yet to be established. Bioelectrical impedance analysis is a non-invasive technique estimating changes in body composition over time.~125 patients with locally advanced gastric adenocarcinoma scheduled for multimodal treatment will be included in the study. Four consecutive nutritional status assessments will be performed throughout the treatment.
The aim of this single-arm prospective, multicenter, cross-sectional study is to evaluate the nutritional status and body composition on tumor regression grade with bioelectrical impedance analysis in gastric cancer patients undergoing multimodal treatment. Results of this study will reveal whether nutritional status and body composition assessment based on bioelectrical impedance analysis will become a validated and objective tool to support clinical decisions in gastric cancer patients undergoing multimodal treatment.