Prognostic Nutritional Index and Postoperative Complications in Oncologic Surgery

Malnutrition, anorexia, and cachexia are common in patients undergoing oncologic surgery and can negatively affect treatment outcomes. The Prognostic Nutritional Index (PNI), calculated from serum albumin levels and total lymphocyte count, is a simple and reliable marker of nutritional and immune status. Although PNI has been studied in various malignancies, its predictive value for postoperative outcomes across all oncologic surgical procedures has not been fully evaluated. This study aims to assess the role of PNI in predicting postoperative outcomes and prognosis in patients undergoing different types of oncologic surgery.