Liver and Gastrointestinal Transplant Division, Department of Gastroenterology, University of São Paulo School of Medicine, São Paulo, Brazil.
Liver and Gastrointestinal Transplant Division, Department of Gastroenterology, University of São Paulo School of Medicine, São Paulo, Brazil.
Transplant Proc. 2022 Jun;54(5):1320-1323. doi: 10.1016/j.transproceed.2022.04.010. Epub 2022 May 7.
Living donor liver transplant (LDLT) is a valuable therapeutic option for overcoming the deceased donor shortage. Modified right lobe graft (MRLG) keeps the middle hepatic vein (MHV) trunk with the remnant liver to improve donor safety. Hemostasis in the MHV tributary reconstruction can be tricky; surgical stitches and energy coagulation are ineffective. Fibrin glues are excellent vascular sealants but are poor in maintaining hemostasis in an active hemorrhage or preventing resection surface-related complications after liver resection. We propose applying fibrin sealant during back table graft preparation to seal the hepatic edge and MHV reconstruction to avoid bleeding after graft revascularization.
Our retrospective cohort study included all adult patients undergoing LDLT between August 2017 and December 2021. During the back table procedure, we performed the reconstruction of the inferior right hepatic vein and/or MHV tributaries from segment 5 (V5) and segment 8 (V8) using a vein harvested from a nonrelated deceased donor. Before initiating the hepatic graft implantation, we applied fibrin sealant in the resected parenchyma, especially in the V5 and V8 anastomosis, to seal the hepatic edge and hepatic vein reconstruction.
No bleeding was identified in the hepatic edge, and blood product transfusion was unnecessary for any recipients after reperfusion.
In LDLT using MRLG with MHV reconstruction, the fibrin sealant, when applied on the raw hepatic surface, and vascular reconstruction during back table graft preparation avoided bleeding after graft revascularization.
活体肝移植(LDLT)是克服已故供体短缺的宝贵治疗选择。改良右叶移植物(MRLG)保留中肝静脉(MHV)干与残余肝脏,以提高供体安全性。在 MHV 属支重建中的止血可能很棘手;手术缝线和电凝无效。纤维蛋白胶是出色的血管密封剂,但在活跃性出血中保持止血或防止肝切除后与切除面相关的并发症方面效果不佳。我们建议在后台准备移植物时应用纤维蛋白胶来密封肝边缘和 MHV 重建,以避免在移植物再灌注后出血。
我们的回顾性队列研究包括 2017 年 8 月至 2021 年 12 月期间所有接受 LDLT 的成年患者。在后台程序中,我们使用从非亲缘已故供体中获取的静脉来重建来自 5 段(V5)和 8 段(V8)的下右肝静脉和/或 MHV 属支。在开始进行肝移植物植入之前,我们在切除的肝实质中应用纤维蛋白胶,特别是在 V5 和 V8 吻合处,以密封肝边缘和肝静脉重建。
在肝边缘未发现出血,并且在再灌注后任何受者均无需输血。
在使用 MHV 重建的 MRLG 进行 LDLT 中,纤维蛋白胶在后台准备移植物时应用于未处理的肝表面和血管重建,可以避免在移植物再灌注后出血。