Publications by authors named "O Yasui"

A 77-year-old man underwent a right hemihepatectomy for hepatocellular carcinoma in 2002. The patient remained alive without recurrence for 17 years after surgery. In September 2019, he was diagnosed with a tumor in the lower lobe of the right lung by follow-up CT.

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An 80-year-old woman presented to our hospital complaining of nausea and abdominal distention. An abdominal computed tomography scan revealed wall thickening of the small intestine, a dilated oral intestinal tract, swollen intra-abdominal lymph nodes, and splenomegaly. Moreover, the soluble interleukin-2 receptor level was increased at 2,120 U/mL.

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Key Points: Plasmapheresis is recommended for treating ANCA-associated vasculitis with severe renal and/or lung involvement. We established the cohort being admitted for ANCA-associated vasculitis with active kidney involvement from the 2016–2020 National Inpatient Sample. We described characteristics, inpatient procedures, lengths of stay, hospital costs, and disposition for patients treated with plasmapheresis.

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Background: PEComa is a mesenchymal tumor that can occur in various organs including the uterus and soft tissues. PEComas are composed of perivascular epithelioid cells, and angiomyolipoma (AML), clear cell sugar tumor (CCST), and lymphangiomyomatosis (LAM) are considered lesions of the same lineage as tumors of the PEComa family. Histologically, a common PEComa shows solid or sheet-like proliferation of epithelioid cells.

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Introduction: TheTADAlafil treatment for Fetuses with early-onset growth Restriction: multicentrer, randomizsed, phase II trial (TADAFER II) study showed the possibility of prolonging the pregnancy period in cases of early-onset fetal growth restriction; however, it was an open-label study. To establish further evidence for the efficacy of tadalafil in this setting, we planned a multicentre, randomised, placebo-controlled, double-blind trial.

Methods And Analysis: This trial will be conducted in 180 fetuses with fetal growth restriction enrolled from medical centres in Japan; their mothers will be randomised into three groups: arm A, receiving two times per day placebo; arm B, receiving one time per day 20 mg tadalafil and one time per day placebo and arm C, receiving 20 mg two times per day tadalafil.

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