Jun Nakashima

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OBJECTIVE Preoperative prognostic factors in bladder cancer patients have not been fully established. This study was undertaken to investigate preoperative prognostic factors, including neutrophil-to-lymphocyte ratio (NLR), and to develop a novel prognostic factors-based risk stratification model for disease-specific survival (DSS) in bladder cancer(More)
PURPOSE We investigated the prognostic significance of the neutrophil-to-lymphocyte ratio to predict recurrence in patients with nonmetastatic renal cell carcinoma. MATERIALS AND METHODS We retrospectively reviewed the records of 192 patients with nonmetastatic renal cell carcinoma (T1-4N0M0) who underwent nephrectomy between 1986 and 2000. Mean followup(More)
The objective of this study was to evaluate the efficacy and toxicity of combination chemotherapy with gemcitabine and paclitaxel as a second-line regimen in patients with advanced urothelial carcinoma. Twenty patients with advanced urothelial carcinoma who were resistant to an M-VAC (methotrexate, vinblastine, doxorubicin, and cisplatin) chemotherapy(More)
PURPOSE We investigated the prognostic impact of lymphovascular invasion (LVI) and traditional prognostic factors for survival in a large series of patients treated surgically for upper tract transitional cell carcinoma (TCC). We also developed a prognostic factors-based model for risk stratification of upper tract TCC. MATERIALS AND METHODS We identified(More)
PURPOSE To evaluate the clinical value of diffusion-weighted imaging (DWI) and dynamic MRI in combination with T2-weighted imaging (T2W) for the detection of prostate cancer. MATERIALS AND METHODS A total of 83 patients with elevated serum prostate specific antigen (PSA) levels (>4.0 ng/mL) were evaluated by T2W, DWI, and dynamic MRI at 1.5 T prior to(More)
BACKGROUND Angiotensin II (AII) type 1 receptor (AT1R) antagonists are used widely as antihypertensive agents, and long-term AT1R blockade may have a protective effect against cancer. We previously demonstrated that specific AT1R blockade with candesartan, an AT1R antagonist, inhibited vascular endothelial growth factor (VEGF) production and dramatically(More)
The aim of this study was to investigate prognostic factors and develop a prognostic factor-based risk stratification model for disease-specific survival (DSS) in a radical cystectomy (RC) series. The patient cohort comprised 194 consecutive patients with bladder cancer treated with RC. Univariate and multivariate Cox proportional hazard model analyses were(More)
We aimed to calculate the frequency and features of the development of a prostate-specific antigen (PSA) bounce after prostate brachytherapy alone, to correlate the bounce with clinical and dosimetric factors and to identify factors that predict PSA bounce. PSA bounce was evaluated in 86 patients with T1-T2 prostate cancer who underwent radioactive seed(More)
OBJECTIVES To assess the value of endorectal magnetic resonance imaging (MRI) for detecting the tumor site, tumor size, and disease extent in patients with localized prostate cancer. METHODS The MRI findings were compared with the histopathologic findings of radical prostatectomy specimens in 95 patients. RESULTS The histologic examination revealed 186(More)
PURPOSE Extracorporeal shock wave lithotripsy is currently accepted as a first line treatment modality for urolithiasis. In obtaining informed consent it is important to inform patients of the stone-free rate with extracorporeal shock wave lithotripsy before surgery. The present study was performed to develop preoperative nomograms for predicting stone-free(More)