Reconstruction of Inferior Vena Cava by Autologous Great Saphenous Vein Grafts in Liver Surgery.

BACKGROUND: To secure surgical margin for hepatic lesion with involvement of the inferior vena cava (IVC), combined radical liver resection and IVC replacement are required. A novel method of replacing IVC by newly customized autologous great saphenous vein (GSV) grafts was introduced by this study. This study aimed at reporting the feasibility and outcome of this novel technique. METHODS: From January 2014 to January 2021, all consecutive patients who underwent concomitant hepatectomy and IVC replacement by autogenous GSV graft were enrolled in this study. Technical insights, intraoperative details, demographic data, postoperative complication, graft patency and survival data were collected and analyzed. RESULTS: Concomitant hepatectomy/autotransplantation (ERAT) with IVC replacement by autogenous GSV graft was successful in 47 patients and there was no 30-day mortality. There were 8 out of the 47 patients whose retrohepatic venae cavae were completely invaded by the lesion and their reconstructed IVCs were totally made from GSV grafts. The other 39 patients whose IVCs were partially invaded had their IVCs reconstructed by both the unaffected part of the IVC wall and newly customized GSV graft. Postoperative complications classified as Clavien-Dindo grade II, III A and III B were observed in 10, 7 and 3 patients, respectively. The median follow-up months were 35 months (29-80 months). No patient developed thrombosis of the graft and 100% patency of the IVC was observed throughout the study. CONCLUSION: In selected patients, hepatectomy/ERAT with IVC replacement by autogenous GSV graft is safe and feasible. The newly customized autologous GVS graft was ideal for reconstruction of the IVC in liver surgery.