Purpose: To study coagulation of live liver donors with standard coagulation tests (SCT) and rotational thromboelastometry (ROTEM) and investigate their relationship.
Methods: A descriptive prospective study involving 50 right hepatotomy donors with epidural catheters. ROTEM (EXTEM, INTEM, and FIBTEM represent extrinsic and intrinsic pathways of coagulation and fibrinogen activity, respectively) was measured perioperatively and on days 1, 3, 5, 10, and 30. SCTs include prothrombin time (PT), international normalized ratio (INR) of PT, activated partial thromboplastin time (aPPT), fibrinogen, and platelets.
Results: PT and INR reflect hypocoagulability reaching maximum on day one (16.9 ± 2.5 s, 1.4 ± 0.2, p < 0.05 compared with baseline). ROTEM was in normal ranges till day 30 with no hypercoagulability. Fibrinogen showed no correlation with maximum clot firmness (MCF) of FIBTEM (r = 0.35, p > 0.05). CFT of EXTEM was not in significant correlation with PT and INR (r = 0.16, 0.19, p > 0.05), respectively. Significant correlation between platelets and both MCF (EXTEM; r = 0.59, p = 0.004) and MCF (INTEM; r = 0.48, p = 0.027).
Conclusion: ROTEM disagreed with SCTs and did not show the temporary hypocoagulability suggested by SCTs. Both ROTEM and SCTs showed no signs of hypercoagulability. Future studies involving ROTEM could help develop new guidelines for coagulation monitoring.
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