Hirotaka Arai

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BACKGROUND 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. METHODS From December 1995 to March 2003, 11 patients who had undergone B-RTO within 24 h after the control of gastric variceal(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)
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)
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)
BACKGROUND 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)(More)
BACKGROUND 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. METHODS PSE was performed in 30 patients with advanced hepatitis C who could not receive IFN-based therapy because of(More)
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)
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)
BACKGROUND AND AIM Bleeding from ectopic varices, including duodenal varices, is uncommon, but it can be difficult to manage. The clinical data of patients diagnosed and treated for duodenal varices were reviewed to investigate the strategy for treatment. METHODS The present study reviewed the clinical data of 10 patients with duodenal varices (mean age,(More)
We report a-55-year-old woman with spontaneous regression of simple liver cyst. The size of the cyst gradually became reduced without any treatment, and a reduction in diameter from 77 mm to 10 mm was observed after 8 years of follow-up. Spontaneous regression of congenital cysts of the liver in an adult seems to be very rare, and its mechanism is discussed.