Background: The Japanese guideline for therapeutic strategy in HCC does not recognize any benefit of preoperative chemotherapy for potentially resectable hepatocellular carcinoma (HCC), and only upfront resection is recommended even for an advanced HCC. Data on preoperative chemotherapy for advanced HCC is still limited. Poor prognostic factors of HCC after resection are tumor more than 5 cm in diameter, multiple lesions, and gross tumor thrombosis, which constitute UICC7 Stage IIIA and IIIB HCC. There are no prospective studies about preoperative chemotherapy in these patients. Aim: To evaluate the benefit of preoperative chemotherapy for UICC7 Stage IIIA and IIIB potentially resectable HCC. Discussion: Our recent study demonstrated that the 5-year overall survival rate (OS) of patients diagnosed as UICC7 Stage IIIA and IIIB who had received upfront resection was only 16.5%. In contrast, the 5-year OS of UICC7 Stage IIIA and IIIB initially unresectable patients who had achieved conversion from unresectable to resectable status under successful hepatic infusion chemotherapy prior to resection was as high as 61.3%. Additionally, recent studies reported transarterial chemoembolization achieved outcomes comparable with those of resection. Therefore, we believe that patients with UICC7 Stage IIIA and IIIB should be considered borderline resectable. To evaluate this hypothesis we registered the present phase II clinical trial to assess the benefit of preoperative chemotherapy followed by hepatectomy in potentially resectable UICC7 Stage IIIA and IIIB HCC patients.
Background/Aim: Right hepatectomy and extended right hepatectomy (Rt-Hr) are identified as risk factors for the development of post-hepatectomy liver failure (PHLF). Although portal vein embolization (PVE) has made it possible to safely perform extended hepatectomy, to ensure safety, in our department, PVE is performed prior to Rt-Hr for hepatocellular carcinoma (HCC) regardless of the resection rate. This study aimed to retrospectively investigate the clinical course of PVE prior to Rt-Hr for HCC cases resected in our department and the appropriateness of our policy by clarifying complications and deaths. Patients and Methods: The target period was from 2005 to 2020. Among the HCC cases resected at our hospital, those in which PVE was performed prior to Rt-Hr were included in this study. For PHLF, the definition of the International Study Group of Liver Surgery was used. The Clavien-Dindo classification was used for postoperative complications. Perioperative mortality was defined as the overall mortality within 30 days following surgery and surgery-related deaths within 90 days following surgery. Results: A total of 79 cases were included. Rt-Hr was possible in all cases after PVE and there were no cases in which serious complications occurred after PVE. PHLF was found in 14 cases (17.7%)/5 cases (6.4%)/0 cases (0%) of Grade A/B/C, respectively. Regarding postoperative complications, there were no Grade IV, and Grade IIIa/IIIb were found in 13 cases (16.5%). There were no perioperative deaths. Conclusion: Our department's policy of performing PVE prior to all Rt-Hr was considered to be a safe and reasonable treatment strategy.
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