Yoshinori Mizumoto

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BACKGROUND Through-the-scope (TTS) stents facilitate palliative enteral stent placement. However, most TTS stents are braided, a characteristic that has been associated with significant foreshortening and relatively frequent migration. OBJECTIVES To evaluate clinical experience with a new woven enteral stent in the treatment of gastric outlet obstruction.(More)
BACKGROUND Usually, uncovered self-expandable metallic stents (SEMS) are used for palliation of malignant gastric outlet obstruction (GOO). A triple-layered covered SEMS is reported to be efficacious, but its performance has not been compared with uncovered SEMS. The present study is the first to compare the efficacy and safety of a triple-layered covered(More)
INTRODUCTION There have been few reports on the prognosis of patients with intraductal papillary neoplasms of the bile duct (IPNB). Here we report a case of IPNB in a patient with early-stage carcinoma who had multicentric recurrence in the remnant hepatic bile duct after curative resection. CASE PRESENTATION A 78-year-old man with hepatic dysfunction and(More)
A 57 year-old woman was admitted for focal accumulation of 18F-fluorodeoxyglucose (FDG) in the liver detected by positron emission tomography (PET). A 25- mm hypovascular tumor was detected by computed tomography. Tumor biopsy revealed many atypical cells with positive staining for factor VIII-related-antigen in sinusoids. Right lobectomy was performed and(More)
In the present study, the usefulness of the resistance-associated variant (RAV) analysis to select direct acting antiviral (DAA) drugs for patients with hepatitis C virus (HCV) genotype/serotype discrepancy was evaluated. The core-genotype and serotype were determined in the 559 patients recruited in the study. The RAV analysis and NS5B-genotype(More)
We experienced two cases of shock secondary to colonic diverticular bleeding. Both patients showed signs of shock after each episode of melena; however, the bleeding site could not be initially identified because multiple diverticula were present and the bleeding spontaneously ceased during each examination. Therefore, we subsequently performed planned(More)
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