The merits of the prognostic nutritional index and neutrophil-to-lymphocyte ratio in predicting outcomes of coronary artery bypass grafting: a retrospective cohort study

Background

Coronary artery bypass grafting (CABG) carries a risk for serious adverse events. The Prognostic Nutritional Index (PNI) and Neutrophil-to-Lymphocyte Ratio (NLR), are simple measures of nutritional and inflammatory statuses, have been proposed as a potential predictor of postoperative outcomes. This study aimed to assess the predictive performance of preoperative PNI and NLR and their dynamic changes for post-CABG outcomes. Methods and materials: The study investigated the medical records of 327 patients who underwent CABG between February 20, 2020, and February 19, 2025.