Kenichi Hata

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Extracorporeal shock wave lithotripsy (ESWL) by EDAP LT-01 was used to treat 77 patients with upper urinary tract stones. A total of 218 sessions were performed for 111 stones in 52 kidney units and 41 stones in 37 upper ureter units, and 77% of the 52 kidney stone units and 62% of the 37 ureter units were completely disintegrated. The success of(More)
Background : On 11 March 2011, the Great East Japan Earthquake followed by a powerful tsunami hit the Pacific Coast of Northeast Japan and damaged Tokyo Electric Power Company’s Fukushima Daiichi Nuclear Power Plant, causing a radiation hazard in Fukushima Prefecture. The objective of this report is to describe some results of a questionnaire-based(More)
The objective of the present study was to investigate whether patient age is associated with vascular access failure during maintenance hemodialysis. Thus, patients who had a successful permanent hemodialysis vascular access installed (Group N: 314 cases), and those who required vascular access revision (Group R: 108 patients) were studied. To assess the(More)
BACKGROUND On 11 March 2011, the Great East Japan Earthquake followed by a powerful tsunami hit the Pacific Coast of Northeast Japan and damaged Tokyo Electric Power Company's Fukushima Daiichi Nuclear Power Plant, causing a radiation hazard in Fukushima Prefecture. The objective of this report is to describe some results of a questionnaire-based pregnancy(More)
BACKGROUND To investigate retrospectively whether the eight-core biopsy method improves the prostate cancer detection rate when compared with the standard sextant biopsy method in patients with prostate specific antigen (PSA) levels of 4.1-10 ng/mL. MATERIAL AND METHODS Of 437 patients whose PSA levels ranged from 4.1 to 10 ng/mL, 237 underwent a(More)
About 3million men have been reported to have osteoporosis in Japan. One of known causes of osteoporosis in men is late-onset-hypogonadism. Androgen replacement therapy has been reporte to be effective in seveal literatures, however, patitiets should be excluded if prostate cancer is suspected. Addition of bisphosphpnate and active vitain D derivatives are(More)
BACKGROUND Vesicourethral anastomotic stricture (VAS) is a rare but serious complication following radical prostatectomy (RP), and various types of managements for VAS have been proposed. We investigated the efficacy of transurethral balloon dilation in the management of VAS after RP. METHODS A total of 128 consecutive patients underwent open RP at our(More)
Small cell carcinoma of the prostate is known to have a poor prognosis. We report a case of a large pelvic tumor with small cell carcinoma, which responded well to docetaxel. A 72-year-old man who was receiving androgen-deprivation therapy for prostatic adenocarcinoma presented with constipation. Although the prostate specific antigen level had decreased, a(More)
Reviews of the CT scans of percutaneous nephrostomy, lithotomy and lithotripsy disclosed 14 out of 78 cases (17.9%) with evidence of complications. Renal and perirenal hematomas were detected in five cases and the other five cases showed collections of contrast material in the retroperitoneum except for the anterior pararenal space. CT demonstrated clearly(More)
We report a case of meningitis-retention syndrome followed by urodynamic tests. A 48-year-old man was admitted to the hospital for an undiagnosed fever with headache and urinary retention. Aseptic meningitis was suspected according to cerebrospinal fluid analyses, and urodynamic test showed an underactive detrusor, leading to inadequate contraction of the(More)