Impact of PDCA cycle-driven nutritional support on serum biomarkers and quality of life in nasopharyngeal carcinoma patients undergoing radiotherapy

These results suggest that PDCA cycle-based nutritional support enhances clinical efficacy and QoL, reduces nutritional risks and adverse reactions and improves overall safety in NPC patients undergoing radiotherapy. Serum markers like serum iron, ferritin, prealbumin, and CRP effectively monitored the impact of nutritional interventions on patients' nutritional and inflammatory status.