Hirotaka Arai

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AIM To evaluate the effect of three interventional treatments involving transvenous obliteration for the treatment of gastric varices, and to compare the efficacy and adverse effects of these methods. METHODS From 1995 to 2004, 93 patients with gastric fundal varices underwent interventional radiologic embolotherapy at our hospital. Of the 93 patients, 75(More)
Hepatocellular carcinoma (HCC) is one of the most common cancers worldwide. However, HCC is rare in young Japanese patients and the clinical features of young patients with HCC have not yet been fully studied. This study was designed to determine the clinical characteristics and prognosis of patients with HCC who are younger than aged 40 years. A(More)
Hepatocellular carcinoma (HCC) with portal vein tumor thrombosis (PVTT) is associated with a poor prognosis. New therapeutic modalities, such as continuous hepatic arterial infusion chemotherapy (CHAIC), have recently been reported to be promising strategies. The aim of this study was to evaluate the clinical characteristics, prognosis, and survival of(More)
We evaluated the efficacy of emergency balloon-occluded retrograde transvenous obliteration (B-RTO) performed within 24 h after initial hemostasis for the prevention of rebleeding from ruptured gastric varices. From December 1995 to March 2003, 11 patients who had undergone B-RTO within 24 h after the control of gastric variceal bleeding at Maebashi Red(More)
AIM Balloon-occluded transcatheter arterial chemoembolization (B-TACE) using a microballoon catheter was performed to administrate miriplatin, and the early therapeutic efficacy and safety of the procedure were evaluated. METHODS Out of 158 patients who received miriplatin using B-TACE for hepatocellular carcinoma, 49 patients with a single lesion at(More)
Although partial splenic embolization (PSE) is reportedly effective prior to interferon (IFN)-based therapy, the number of subjects in these studies is small, and the appropriate candidates and disease prognosis remain unknown. PSE was performed in 30 patients with advanced hepatitis C who could not receive IFN-based therapy because of thrombocytopenia,(More)
Although spleen stiffness has recently been identified as potential surrogate marker for portal hypertension, the relationship between spleen stiffness and portal hypertension has not been fully elucidated. We attempted to determine the relationship between the liver or spleen stiffness and the presence of ascites or esophageal varices by acoustic radiation(More)
AIM To identify the clinical and prognostic features of patients with hepatocellular carcinoma (HCC) aged 80 years or more. METHODS A total of 1310 patients with HCC were included in this study. Ninety-one patients aged 80 years or more at the time of diagnosis of HCC were defined as the extremely elderly group. Two hundred and thirty-four patients aged >(More)
The term "ectopic varices" is used to describe dilated portosystemic collateral veins in unusual locations other than the gastroesophageal region. We recently experienced a rare case of ectopic varices that developed in the gastroduodenal anastomosis after subtotal gastrectomy. A 70-year-old male with liver cirrhosis due to hepatitis C virus infection was(More)
The incidence of acute hepatitis A infection in Japan peaked 10 years ago and has been decreasing since then. However, an increase in severe cases of the disease has been documented recently. We experienced an outbreak in 1998–1999, and compared the clinical features of the disease in 1998–1999 (recent outbreak) and in 1987–1988 (past outbreak) in our(More)