Publications by authors named "Chizuru Arisawa"

Background: The prognostic significance of tumor location for patients with upper urinary tract urothelial carcinoma (UUT-UC) has been disputed. Several papers have reported that ureteral cancer is associated with worse prognosis.

Objective: To investigate the prognostic significance of the presence of ureteral tumors in UUT-UC patients who underwent radical nephroureterectomy (RNU).

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Objectives: To investigate longitudinal changes in renal function after radical nephrectomy, and to explore risk factors of postoperative severe renal impairment in a Japanese multicenter cohort.

Methods: The present retrospective study included 701 patients who had no metastasis, end-stage kidney disease or bilateral kidney cancer, who underwent radical nephrectomy and who were followed up for at least 1 year. The longitudinal change in postoperative renal function during a 10-year follow-up period was evaluated according to the presence or absence of potential risk factors including greater age, chronic kidney disease, hypertension, diabetes mellitus and cardiovascular disease.

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Aim: To clarify how body mass index (BMI) affects the risk of death from upper urinary tract urothelial carcinoma (UUTUC) we investigated the impact of BMI on UUTUC using a Japanese multicenter database.

Patients And Methods: Between January 1995 and December 2010, 1,329 patients with upper urinary tract tumors were treated in 13 institutions in Japan. From this group, a cohort of 1,014 patients treated with radical nephroureterectomy was retrospectively reviewed.

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Objectives: To investigate the oncological and functional outcome of distal ureterectomy compared with nephroureterectomy in the management of distal ureteral urothelial carcinoma.

Methods: Using a database including upper urinary tract urothelial carcinoma patients (n = 1329), 282 patients were identified with urothelial carcinoma localized in the distal ureter on clinical evaluation. To adjust for potential baseline differences between groups, 43 patients undergoing distal ureterectomy were matched with 86 patients undergoing nephroureterectomy using propensity scoring.

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Objectives: To identify risk factors and develop a model for predicting recurrence of upper urinary tract urothelial carcinoma (UTUC) in the bladder in patients without a history of bladder cancer after radical nephroureterectomy (RNU).

Patients And Methods: We retrospectively reviewed 754 patients with UTUC without prior or concurrent bladder cancer or distant metastasis at 13 institutions in Japan. Univariate and multivariate Fine and Gray competing risks proportional hazards models were used to examine the cumulative incidence of bladder recurrence of UTUC.

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Objectives: To develop and validate predictive models for postoperative estimated glomerular filtration rate and risk of chronic kidney disease after radical nephrectomy in Japanese patients.

Methods: The present retrospective study included a development cohort of 209 patients without preoperative chronic kidney disease who underwent radical nephrectomy between 1994 and 2008, and were followed up for longer than 3 years, and a validation cohort of 144 similar such patients. Univariate and multivariate linear regression or logistic regression analyses were carried out to identify the independent predictors of estimated glomerular filtration rate or chronic kidney disease 3 years after radical nephrectomy.

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Objectives: To evaluate the prognostic effect of age in patients with localized renal cell carcinoma (RCC) and investigate the incidence of Xp11 translocation RCC in young patients who developed recurrence.

Methods: From 1990 to 2007, 2403 Japanese patients underwent nephrectomy for presumed RCC at 9 institutions. Of those, 1143 patients had localized RCC (Stage pT1-2N0M0).

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The medical records of 8 consecutive patients with terminal urological cancers who were treated with implanted venous reservoirs between October 2001 and July 2004 were retrospectively reviewed. All 8 devices were placed safely in the 8 patients, and fluids and drugs were easily administered via the reservoirs. The devices were utilized for a mean of 40.

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A 48-year-old woman was referred to our hospital with a bladder mass which was detected by a general practitioner. Ultrasonography showed a small bladder tumor and right renal mass. Cystoscopy revealed a solitary, non papillary tumor at the right side of the retro-trigone.

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Objectives: To evaluate whether three-dimensional 26-core (3D26) prostate biopsy improves the accuracy in predicting the presence of Gleason pattern 4/5 cancer compared with extended transrectal 12-core (TR12) or transperineal 14-core (TP14) biopsy schemes.

Methods: We studied 143 consecutive men in whom prostate cancer was diagnosed by the 3D26 biopsy and who underwent radical prostatectomy (RP) without neoadjuvant treatment. All histologic grading was reevaluated by a single pathologist according to the 2005 International Society of Urological Pathology Consensus Conference on Gleason Grading.

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Vesicouterine fistula is a rare complication of cesarean section. Although surgical repair was mandatory for the management of the fistula previously, a recent review showed high efficacy of hormonal manipulation by the induction of amenorrhea. Herein, we report a new case of vesicouterine fistula secondary to cesarean section successfully treated by luteinizing hormone-releasing hormone analog for 6 months.

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We evaluated the usefulness of our original all-in-one clinical pathway for transurethral resection of the prostate (TUR-P) on 86 consecutive patients. There were 27 consecutive patients treated before introduction of the clinical pathway (group 1). Twenty-nine consecutive patients were treated just after the introduction of the clinical pathway (group 2) and 30 consecutive patients were treated one year after the introduction of the clinical pathway (group 3).

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A 67-year-old woman underwent abdominal ultrasonography as part of a general health examination and was incidentally found to have a mass 5 cm in diameter in the left adrenal gland. She had no experience of abdominal trauma. Computerized tomography (CT) revealed a 5.

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Background: We have previously shown that both sialyl-Lewis A (sLe(a)) and sialyl-Lewis X (sLe(x)) antigens are involved in E-selectin-mediated adhesion of some urothelial cancer cells to the endothelium in vitro. The present study was undertaken to determine whether these antigens could serve as prognostic parameters.

Materials And Methods: We immunohistochemically examined the expression of sLe(a) and sLe(x) in 90 human upper urinary tract urothelial tumours.

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A 47-year-old male patient underwent surgery for a 10-cm adrenal cortical carcinoma. A large invasive adrenal mass was surgically removed en bloc with the right kidney and the lower lobe of the liver. Two months postoperatively, a 7-cm recurrent mass developed in the right psoas muscle.

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We examined effects of TNP-470 with or without nicardipine on in vivo or in vitro growth of a hormone-independent human prostate carcinoma cell line, PC-3. TNP-470 (30 mg/kg, daily) or nicardipine (25 microg/kg, daily) alone had little effects on in vivo growth of PC-3 cells in nude mice, whereas simultaneous administration of both agents significantly inhibited the growth of the xenografts. In vitro proliferation of PC-3 was not affected by TNP-470 and/or nicardipine.

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