Infections remain an important cause of morbidity and mortality early after liver transplantation. The aim of this prospective longitudinal study was to evaluate clinical utility of c-reactive protein (CRP), procalcitonin, and neutrophil-to-lymphocyte ratio (NLR) in surveillance of infections early after liver transplantation in intensive care setting. A total of 60 liver transplant recipients were included. CRP, procalcitonin, and NLR assessed at 12-hour intervals were primary variables of interest. Infections and severe complications during postoperative intensive care unit stay were the primary and secondary end-points, respectively. Infections and severe complications were diagnosed in 9 and 17 patients, respectively. Only peak CRP beyond first 48 hours was associated with infections (p = 0.038) with AUC, positive and negative predictive value of 0.728, 42.9% and 92.2%, respectively (cut-off: 142.7 mg/L). Peak procalcitonin over first 60 hours was the earliest predictor (p = 0.050) of severe complications with AUC, positive and negative predictive value of 0.640, 53.3% and 80.0%, respectively (cut-off: 42.8 ng/mL). In conclusion, while CRP, procalcitonin, and NLR cannot be used for accurate diagnosis of infections immediately after liver transplantation, peak CRP beyond 48 hours and peak procalcitonin over first 60 hours may be used for initial exclusion of infections and prediction of severe complications, respectively.Despite remarkable improvement of outcomes of patients after liver transplantation over past decades, infections remain one of the most important threats and most common causes of death in a population of liver transplant recipients 1-3 . In the early post-transplant period, they are the most common cause of morbidity 4 . Even 70% of liver transplant recipients develop bacterial infections, with vast majority occurring during the first post-transplant month 5,6 . These complications remain an important cause of death in the early post-transplant period with overall infection-related mortality rates varying between 0-30% depending on etiology, timing, and site 7-10 . Particularly high mortality rates, in the range of approximately 35-70%, are reported for patients developing infections with multiple drug resistant microorganisms, such as extended spectrum beta-lactamase-producing or carbapenem-resistant Enterobacteriaceae 11-13 . Improvements in prevention, early diagnosis and management of infections in the early period after liver transplantation are thus undoubtedly necessary to further improve patient outcomes. Several preventive measures, such as perioperative use of probiotics or implementation of bundled strategies, were recently proven effective in major reduction of post-transplant burden of infections [14][15][16] . However, early diagnosis of infectious complications after liver transplantation, a prerequisite for timely initiation of antimicrobial therapy, remains a major clinical challenge, particularly in the immediate postoperative period 17 .Serum procalcitonin and C-reactive pr...