Publications by authors named "Yasuhiko Hirose"

We report a rare case of a primary renal neuroendocrine tumor. The patient was a 64-year-old woman. The patient's chief complaint was gross hematuria.

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Article Synopsis
  • This study analyzed how the length of the membranous urethra and other pelvic anatomical features affect urinary continence recovery after robotic-assisted radical prostatectomy.
  • The review included data from 73 patients who underwent MRI imaging post-surgery, observing their recovery rate and identifying significant differences between early and late continence recovery groups.
  • Results showed that a longer membranous urethral length and wider bladder neck were linked to quicker recovery of urinary continence, with substantial improvements noted over the first year post-surgery.
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There are few reports of the long-term outcomes of elderly patients with prostate cancer. We analyzed data from our institution from the past 12 years, including the patient history, treatment methods, and prognosis of patients with prostate cancer aged 80 years or more. A total of 179 cases of prostate cancer in patients aged 80 years or more were retrospectively evaluated.

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To reduce the incidence of surgical site infection (SSI) after radical cystectomy, a new closing method using subcutaneous continuous aspiration drain was developed and compared to the conventional closing method. The new method involved (a) closed aspiration with an indwelling aspiration drain without suture of the subcutaneous fat and (b) covering with hydrocolloid wound dressing after suture of the dermis with 4-0 absorbable thread and reinforcement using strips. The incidence of SSI was significantly improved by using the new method.

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Objectives: To experimentally evaluate the clinical application of N-methyl-4-isoleucine cyclosporin, a novel selective inhibitor of cyclophilin D activation.

Methods: In vitro, cultured renal tubular cells were exposed to calcium oxalate monohydrate crystals and treated with N-methyl-4-isoleucine cyclosporin. The mitochondrial membrane was stained with tetramethylrhodamine ethyl ester perchlorate and observed.

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Purpose: We developed an in vitro system composed of renal tubular cells, adipocytes and macrophages to simulate metabolic syndrome conditions. We investigated the molecular communication mechanism of these cells and their involvement in kidney stone formation.

Materials And Methods: Mouse renal tubular cells (M-1) were cocultured with adipocytes (3T3-L1) and/or macrophages (RAW264.

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To evaluate the efficacy of company-initiated training of urologists on shock wave lithotripsy (SWL) treatment results, we retrospectively assessed 602 patients who underwent SWL in Nagoya City University Hospital between January 2004 and June 2011 using Lithotripter S (Dornier MedTech, Japan). Training-provided by a training specialist of the company in June 2010-focused on the targeting of renal and proximal ureter stones with a combination of radiography and ultrasonography (US). The stretcher wedges were positioned in the semi-prone position or the semi-supine position for middle and distal ureter stones, respectively.

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Renal tubular cell injury induced by oxalate plays an important role in kidney stone formation. Water containing oxygen nano-bubbles (nanometer-sized bubbles generated from oxygen micro-bubbles; ONB) has anti-inflammatory effects. Therefore, we investigated the inhibitory effects of ONB water on kidney stone formation in ethylene glycol (EG)-treated rats.

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In 2002, speedy elimination of ureterolithiasis in the lower part of ureter was first reported with the alpha 1 blocker. Thereafter, there are a lot of reports including meta-analysis about tamsulosin. In 2011 EAU Guidelines on Urolithiasis, it is the most important to establish effective MET (medical expulsive therapy) to facilitate spontaneous stone passage.

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Objective: Tamsulosin is often administered at a dose of 0.2 mg in Japan, Korea, and elsewhere in Asia, while a dose of 0.4 mg is more common in the West.

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A 20-year-old man was admitted to our hospital with persistent cough and dyspnea. He had bilateral distention of the jugular veins, and swollen lymph nodes were palpable in the right subclavicular region. Plain X-ray and computed tomography (CT) of the chest showed a solid soft tissue mass in the upper mediastinum, with leftward displacement of the trachea and complete obstruction of the superior vena cava.

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