Continuous venovenous hemodialysis treatment in critically ill patients after liver transplantation

Abstract

Background. Acute renal failure (ARF) in critically ill patients is associated with a high mortality rate. Continuous renal replacement therapy (CRRT) is now widely used for the treatment of ARF in these critically ill patients. We retrospectively analyzed the role of CRRT as a prognostic parameter in patients receiving a cadaveric liver graft in 1998. Methods. We reviewed the patient records of all adult recipients of a cadaveric liver graft (N = 54) in 1998 and compared those who underwent CRRT treatment (N = 19) to those without CRRT treatment (N = 35). Results. Mortality was high in the continuous venovenous hemodialysis (CVVHD) group (58%). At the time of transplantation, creatinine (1.7 ± 0.4 vs. 1.0 ± 0.1 mg/dl), blood urea nitrogen (40 ± 13 vs. 22 ± 3 mg/dl), aspartate aminotransferase (ASAT; 585 ± 420 vs. 242 ± 97 U/liter), and bilirubin (11.6 ± 4.1 vs. 6.5 ± 1.9 mg/dl) were higher in the CVVHD group than in controls, whereas hemoglobin (10.3 ± 0.6 vs. 10.8 ± 0.4 g/dl), white blood cells (6.3 ± 0.6 vs. 7.0 ± 0.8/nl), and thrombocytes (110 ± 18 vs, 90 ± 10/nl) were similar. After transplantation, liver graft function was impaired in the CVVHD group as compared with controls. Conclusions. The necessity for CRRT in patients after liver transplantation correlates with a high risk of death. Thus, more efforts have to be made to prevent renal failure in patients after liver transplantation.