Portal Vein Embolization Followed by Right-Side Hemihepatectomy for Hepatocellular Carcinoma Patients: A Japanese Multi-Institutional Study
2016
Background Portal vein embolization (PVE) is useful to expand the indications of major hepatectomy; however, its oncologic effects are not fully understood. This study aimed to confirm the efficacy of preoperative PVE for hepatocellular carcinoma patients. Study Design Between 2000 and 2012, five hundred and ten patients with hepatocellular carcinoma undergoing right-side hemihepatectomy were enrolled (PVE group, n = 162 and non-PVE group, n = 348). To equalize background factors, one-to-one propensity case-matched analysis and multivariate analysis were performed. Short- and long-term outcomes were evaluated. Results Propensity score-matched patients, 148 in each group, were selected. The percentage of resected liver volume on admission was significantly greater in the PVE group (60.5% vs 48.3%; p Conclusions Even though hepatocellular carcinoma patients who underwent preoperative PVE and right-side hemihepatectomy had a significantly larger resected liver volume on admission, they have a comparable long-term prognosis as patients with up front hepatectomy. In addition, PVE might decrease extrahepatic recurrences.
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