Yutaka Matsuyama

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BACKGROUND/AIMS We conducted a retrospective cohort study to investigate factors to early and late phase recurrence of hepatocellular carcinoma (HCC). METHODS The study population consisted of 249 patients including 157 with cirrhosis who underwent hepatectomy for HCC. The endpoint was time-to-recurrence. Using a Cox regression model, factors to early and(More)
OBJECTIVES To evaluate the prognostic impact of anatomic versus nonanatomic resection on the patients' survival after resection of a single hepatocellular carcinoma (HCC). SUMMARY OF BACKGROUND DATA Anatomic resection is a reasonable treatment option for HCC; however, its clinical significance remains to be confirmed. METHODS Curative hepatic resection(More)
In the 17th Nationwide Follow-up Survey of Primary Liver Cancer in Japan, 18 213 individuals were newly registered as patients with primary liver cancer at 645 medical institutions over a period of 2 years (from 1 January 2002 to 31 December 2003). Of these patients, 94.2% had hepatocellular carcinoma (HCC) and 4.1% had intrahepatic cholangiocarcinoma(More)
Background:This multicentre randomised phase III trial was designed to determine whether adjuvant chemotherapy with gemcitabine improves the outcomes of patients with resected pancreatic cancer.Methods:Eligibility criteria included macroscopically curative resection of invasive ductal carcinoma of the pancreas and no earlier radiation or chemotherapy.(More)
BACKGROUND & AIMS To elucidate the survival of the patients with unresectable hepatocellular carcinoma (HCC) who underwent transcatheter arterial lipiodol chemoembolization (TACE) and to analyze the factors affecting the survivals. METHODS During the last 8 years, a nationwide prospective cohort study was performed in 8510 patients with unresectable HCC(More)
OBJECTIVE The aims of this study were to present evidence to develop and validate the Japanese Tumor-Node-Metastasis (TNM) staging system for primary liver cancer and to compare its discriminatory ability and predictive power with those of Vauthey's simplified staging, which was adopted as the TNM staging system of the American Joint Committee on Cancer(More)
The Clinical Practice Guidelines for Hepatocellular Carcinoma (HCC), the first evidence-based guidelines for the treatment of HCC in Japan, were compiled by an expert panel supported by the Japanese Ministry of Health, Labour, and Welfare. This set of guidelines covers six research fields: prevention, diagnosis and surveillance, surgery, chemotherapy,(More)
Preoperative portal vein embolization (PVE) was performed in 84 patients before extensive liver resection for various diseases. By the criteria of liver volumetric determination, some patients were candidates for PVE, whereas others were not, even though the same surgical procedure, such as extended right lobectomy (ERL), was scheduled. PVE using gelatin(More)
BACKGROUND/AIMS The treatment of choice for HCC remains controversial. We evaluated the therapeutic impact of surgical resection, PEI, and RFA for HCC on outcomes. METHODS A database derived from a Japanese nationwide survey of 17,149 patients with HCC treated by resection, PEI, or RFA between 2000 and 2003 was used to identify 7185 patients with no more(More)