Role of Preoperative Inflammatory Blood Cell Indexes as a Postoperative Risk Predictor Among Patients Undergoing On-Pump Cardiac Surgery

Estimating patient risk before heart surgery (HS) is crucial. Perioperative inflammation is associated with several complications and mortality. This study investigated blood cell count inflammatory indices (BCCII) to predict risks, including neutrophil-to-lymphocyte ratio (NLR), derivate NLR (DNLR), neutrophil-to-platelet-lymphocyte ratio (NLPR), lymphocyte-to-monocyte ratio, platelet-to-lymphocyte ratio (PLR), Systemic Inflammatory Index (SII), Systemic Inflammatory Reaction Index (SIRI), and Aggregate Index of Systemic Inflammation (AISI). Data from a cohort of patients undergoing on-pump HS at a single center in Brazil were retrospectively analyzed. Data were obtained from medical records and a laboratory analyzer, and SPSS version 20.0 was used for index calculations and statistical analyses. In total, 444 surgeries were performed, and 40 in-hospital deaths occurred. Except for PLR, all other indexes were independent predictors of death after multivariate adjustment (all p 0.7; all p