Association of preoperative prognostic nutritional index with postoperative delirium after gastric cancer surgery (opens in new tab)

BackgroundPostoperative delirium (POD) is a common complication following gastric cancer (GC) surgery, leading to increased morbidity, prolonged hospitalization, and higher healthcare costs. Although other clinical and inflammatory markers have shown promise, the prognostic nutritional index (PNI)—a marker reflecting both immune and nutritional status—has rarely been evaluated for its ability to predict POD among GC patients. This study aimed to determine whether preoperative PNI could serve ...