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Perioperative Changes in Platelet Counts During Adult Liver Transplantation.

OBJECTIVES
Thrombocytopenia is a common problem among liver transplant recipients. However, various patterns of change in platelet counts during adult liver transplant have been reported in the literature. This study aimed to evaluate alterations in platelet count according to the surgical phase (preanhepatic, anhepatic, after reperfusion) and during the early postoperative period of liver transplant.


MATERIALS AND METHODS
Perioperative data from 100 patients undergoing deceased donor liver transplant were reviewed, including platelet count-related data. Platelet counts were measured at predefined time points throughout the procedure: immediately before induction of anesthesia, at the early neo-hepatic stage (10 min after graft reperfusion), immediately after admission to the intensive care unit posttransplant, and 6 hours posttransplant. Platelet counts were then measured daily during stay in the intensive care unit.


RESULTS
Mean baseline platelet count before transplant and anesthesia was 97.92 × 109/L. A peak platelet count was seen in the early neo-hepatic stage. Platelet counts then decreased sharply in the first 6 hours after transplant. A slight decrease in platelet counts continued until the third day after the surgery; finally, on day 6 posttransplant, platelet counts increased significantly.


CONCLUSIONS
Our study showed a significant sudden increase in platelet counts during the early neo-hepatic phase in many liver transplant recipients. Therefore, our results suggest that it is reasonable to avoid platelet transfusion for most liver transplant recipients during transplant surgery.