Publications by authors named "T Kawaoka"

Background: It is not clear that antiviral therapy for hepatitis C virus (HCV) after recovery from curative treatment for hepatocellular carcinoma (HCC) has an effect on suppressing recurrence or improving survival rates.

Objectives: We analyzed the impact of eradication by interferon (IFN)-free direct-acting antiviral (DAA) therapy on clinical outcomes of patients with HCV-associated HCC who underwent curative treatment.

Design: This was a retrospective study.

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Background/aim: Surgical resection remains the only curative treatment for combined hepatocellular-cholangiocarcinoma; however, systemic therapy is the primary treatment option for unresectable cases. This multicenter retrospective study aimed to assess the efficacy of systemic therapy for unresectable combined hepatocellular-cholangiocarcinoma.

Patients And Methods: Twenty-one patients with histologically confirmed or clinically diagnosed combined hepatocellular-cholangiocarcinoma who received systemic therapy were included.

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We have previously reported laparoscopic total biopsy methods for suspected gallbladder cancer (GBC). The present prospective observational study evaluated the safety and feasibility of a novel two-stage algorithm using laparoscopic total biopsy methods. The two-stage algorithm was applied for 40 patients with suspected GBC between July 2018 and September 2022.

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Chronic liver diseases exhibit diverse backgrounds, and it is believed that numerous factors contribute to progression to cancer. To achieve effective prevention of nonviral hepatocellular carcinoma, it is imperative to identify fundamental molecular abnormalities at the patient level. Utilizing cancer-adjacent liver tissues obtained from hepatocellular carcinoma patients (chronic liver disease), we conducted RNA-Seq and metabolome analyses.

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Aim: This study aimed to investigate the efficacy of radical resection and postoperative adjuvant chemotherapy on the survival benefit in patients with pancreatic ductal adenocarcinoma (PDAC), stratified by age, frailty, and other factors in actual clinical practice.

Methods: We retrospectively analyzed the clinicopathological and follow-up data of 414 patients with PDAC who underwent surgical resection at nine institutions under the Yamaguchi Pancreat/Biliary Disease Study Group, between January 1997 and December 2016. Recurrence-free survival (RFS) and overall survival (OS) were calculated using the Kaplan-Meier method.

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