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Dive into the research topics where Takuji Shibahara is active.

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Featured researches published by Takuji Shibahara.


International Journal of Urology | 2005

Papillary adenocarcinoma of the renal pelvis and ureter producing carcinoembryonic antigen, carbohydrate antigen 19-9 and carbohydrate antigen 125

Takehisa Onishi; Omar E. Franco; Takuji Shibahara; Kiminobu Arima; Yoshiki Sugimura

Abstract  We report a case of advanced renal pelvis and ureter adenocarcinoma producing carcinoembryonic antigen (CEA), carbohydrate antigen 19‐9 (CA19‐9) and carbohydrate antigen 125 (CA125). A 72‐year‐old woman was diagnosed with right renal pelvic and ureter tumor with para‐aortic lymph node swelling. Biopsy of the ureteral mass revealed papillary adenocarcinoma. Serum levels of CEA, CA19‐9 and CA125 were extremely elevated. The patient was successfully treated with paclitaxel/carboplatin chemotherapy followed by surgery.


Urologia Internationalis | 1999

Paravesical granuloma after inguinal herniorrhaphy. Case report and review of the literature.

Hideaki Kise; Takuji Shibahara; Norio Hayashi; Kiminobu Arima; Yanagawa M; Kawamura J

Paravesical granuloma after herniorrhaphy is an unusual complication due to infected suture material and often mimics bladder or urachal malignancy. We present 3 cases of this disease and reviewed 21 previously reported cases. Our patients underwent hernial repair 2–7 years before examination and presented urinary symptoms. They were treated with antibiotics and underwent exploration of the inguinal wound infection but the symptoms did not resolve. En bloc excision and partial cystectomy were performed and resulted in complete resolution of the symptoms. It is important to consider paravesical granuloma in patients who had undergone herniorrhaphy in the differential diagnosis of bladder or urachal tumors.


BJUI | 2017

Randomized controlled study of the efficacy and safety of continuous saline bladder irrigation after transurethral resection for the treatment of non-muscle-invasive bladder cancer.

Takehisa Onishi; Yusuke Sugino; Takuji Shibahara; Satoru Masui; Tadashi Yabana; Takeshi Sasaki

To evaluate the efficacy and safety of continuous saline bladder irrigation (CSBI) after transurethral resection of bladder tumour (TURBT) in patients with low‐ to intermediate‐risk non‐muscle invasive bladder cancer (NMIBC).


Anticancer Research | 2018

A Combination of Findings Obtained from Pre- and Postoperative Imaging Predict Recovery of Urinary Continence After Non-nerve-sparing Laparoscopic Radical Prostatectomy

Takehisa Onishi; Sho Sekito; Takeshi Terabe; Takuji Shibahara

Background/Aim: The aim of the study was to identify the reliable predictor for early recovery of urinary continence (UC) after non-nerve-sparing laparoscopic radical prostatectomy (NNS-LRP) according to the findings of pre- and postoperative imaging. Materials and Methods: A retrospective analysis of 215 patients who underwent NNS-LRP was carried out. Early recovery of UC was defined as using no pads or one security pad per day within 3 months. Preoperative membranous urethral length (MUL) measured on MRI and postoperative bladder neck angle (BNA) identified by cystography were analyzed to evaluate the relationship with recovery of UC. Patients were divided into three groups based on MUL and BNA (Group A: MUL ≥12.1 mm and BNA ≥103°, Group B: either MUL ≥12.1 mm or BNA ≥103°, Group C: MUL <12.1 mm and BNA <103°. Results: Early recovery rates were 80.3% in patients with MUL ≥12.1 mm, 37.5% in patients with MLU<12.1 (p<0.001), and 77.8% in patients with BNA ≥103°, 50% in patients with BNA <103°(p<0.001). In the combination of the two parameters, early recovery rates were 90.4%, 58%, and 36.1% in group A, B and C respectively (p<0.001). Kaplan–Meier curve of the time to recovery of UC showed significant differences among the three groups (log rank test: p<0.001). Conclusion: A combination of preoperative MUL and postoperative BNA was the reliable predictor of recovery of UC after NNS-LRP. Longer MUL with wider BNA is significantly and positively associated with an early recovery of UC.


The Journal of Urology | 2017

PD19-05 THE BENEFIT OF CONTINUOUS SALINE BLADDER IRRIGATION AFTER TRANSURETHRAL RESECTION IN HIGH GRADE NON-MUSCULAR INVASIVE BLADDER CANCER - A SINGLE CENTER RANDOMIZED PROSPECTIVE STUDY

Takehisa Onishi; Takuji Shibahara; Masahiko Nishii; Masaki Yoshikawa; Tadashi Yabana; Katunori Utida

INTRODUCTION AND OBJECTIVES: The use of intravesical chemotherapy (IC) immediately following transurethral resection of bladder tumor (TURBT) for low grade (LG) non muscle invasive bladder cancer (NMIBC) has been well demonstrated to reduce local recurrence and is supported by current guidelines. We sought to demonstrate patterns of uptake for this practice as well as its impact on outcomes at a population level as an initial step in developing quality improvement initiates in NMIBC. METHODS: Incident cases of LG Ta or T1 NMIBC diagnosed between 2005 and 2012 were identified from the California Cancer Registry and linked to hospital records of the Office of Statewide Health Planning and Development. Tumor, patient, and hospital characteristics were included in the analysis. We determined rates of IC utilization following TURBT in patients with LG Ta or T1 NMIBC. Multivariable logistic regression models were utilized to determine predictors of IC utilization. Cumulative incidence functions and Cox Proportional Hazards (PH) models were used to determine predictors of recurrence-free survival (RFS), bladder cancer-specific survival (CSS), and overall survival (OS) with utilization of IC as the primary effector variable. RESULTS: The final cohort consisted of 10,031 patients with LG NMIBC diagnosed in California between 2005 and 2012, with initial TURBT 45 days from diagnosis. The overall rate of IC utilization was 5.1%, but demonstrated an increase from 1.7% (2005-2006) to 9.6% (2011-2012). On multivariable logistic regression analysis, variables associated with increased odds of immediate IC instillation included more recent year of diagnosis (OR 1.74, CI 1.60-1.90 for 2 year increments). Factors associated with lower odds of receiving IC included Hispanic race (OR 0.62, CI 0.43-0.88) and Asian/Pacific Islander race (OR 0.58, CI 0.37-0.91). The cumulative incidence of recurrence at 24 months for patients who received IC was 25.2% compared to 30.2% among those that did not receive IC. On multivariable Cox PH analysis, use of IC was significantly associated with an 18% improvement in RFS (HR 0.82, CI 0.70-0.97). CONCLUSIONS: Utilization of IC for LG NMIBC remains dismally low in routine practice, with less than 10% of patients receiving this standard of care even in more recent years. Poor utilization of this practice is associated with increased rates of recurrence. Strategies utilizing robust implementation of scientific methods should be studied as a means to overcome a major shortcoming in the quality of care provided to patients with LG NMIBC.


Anticancer Research | 2005

Down-regulation of Skp2 is correlated with p27-associated cell cycle arrest induced by phenylacetate in human prostate cancer cells.

Takuji Shibahara; Takehisa Onishi; Omar E. Franco; Kiminobu Arima; Yoshiki Sugimura


Anticancer Research | 2006

A G/A polymorphism in the androgen response element 1 of prostate-specific antigen gene correlates with the response to androgen deprivation therapy in Japanese population.

Takuji Shibahara; Takehisa Onishi; Omar E. Franco; Kiminobu Arima; Kohei Nishikawa; Yanagawa M; Hioki T; Masatoshi Watanabe; Yoshifumi Hirokawa; Taizo Shiraishi; Yoshiki Sugimura


Anticancer Research | 2016

Efficacy of Ethinylestradiol Re-challenge for Metastatic Castration-resistant Prostate Cancer

Takehisa Onishi; Takuji Shibahara; Satoru Masui; Yusuke Sugino; Shinichiro Higashi; Takeshi Sasaki


The Journal of Urology | 2018

MP05-03 A COMBINATION OF PREOPERATIVE MEMBRANOUS URETHRAL LENGTH AND POSTOPERATIVE BLADDER NECK ANGLE IS A RELIABLE PREDICTIVE FACTOR FOR EARLY RECOVERY OF URINARY CONTINENCE AFTER LAPAROSCOPIC RADICAL PROSTATECTOMY

Takehisa Onishi; Takuji Shibahara; Syou Sekito; Takeshi Sasaki


The Journal of Urology | 2016

PD11-01 RANDOMIZED CONTROLLED STUDY OF THE EFFICACY AND SAFETY OF CONTINUOUS SALINE BLADDER IRRIGATION AFTER TRANSURETHRAL RESECTION FOR THE TREATMENT OF NON-MUSCLE INVASIVE BLADDER CANCER

Takehisa Onishi; Takuji Shibahara; Satoru Masui; Yusuke Sugino; Takeshi Sasaki

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Omar E. Franco

NorthShore University HealthSystem

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Justin D. Harmon

Albert Einstein Medical Center

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Michelle L. Persun

Albert Einstein Medical Center

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Phillip C. Ginsberg

Albert Einstein Medical Center

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