Search results for: Rikiya Taoka

Items from 1 to 20 out of 34 results

article

Oncological outcomes of prophylactic urethrectomy at the time of radical cystectomy for bladder cancer: A nationwide multi‐institutional study

Jun Miki, Wataru Fukuokaya, Rikiya Taoka, Ryoichi Saito, more

International Journal of Urology > 31 > 9 > 1009 - 1016

Objectives To determine the effects of prophylactic urethrectomy (PU) on oncological and perioperative outcomes in patients with bladder cancer (BC) undergoing radical cystectomy (RC). Methods This retrospective study analyzed data on 1976 evaluable patients with BC who underwent RC. Patients were drawn from 36 institutions within the Japanese Urological Oncology Group. Oncological outcomes were...

article

Impact of the coronavirus disease pandemic on robot‐assisted radical prostatectomy and urologists' treatment behaviors: A single tertiary center retrospective study

Yoichiro Tohi, Yu Osaki, Takuma Kato, Tomoko Honda, more

International Journal of Urology > 31 > 8 > 899 - 905

Objectives To assess whether the coronavirus disease (COVID‐19) pandemic affected the outcomes of robot‐assisted radical prostatectomy (RARP) and urologists' treatment behaviors. Methods We retrospectively examined the medical records of 208 patients who had undergone RARP between August 2017 and December 2022. We compared the rate of preoperative androgen deprivation therapy (ADT), waiting period...

article

A surgical checklist for optimizing the quality and outcomes of transurethral resection of bladder tumors: A literature review

Rikiya Taoka, Mikio Sugimoto

International Journal of Urology > 31 > 8 > 846 - 851

To preserve the bladder without compromising survival, further treatments need to be optimized to prevent the recurrence and progression of non‐muscle invasive bladder cancer. In clinical practice, transurethral resection of bladder tumors is essential for bladder cancer management. The primary goal of surgery is to achieve accurate pathological evaluation and complete resection of bladder cancer;...

article

Editorial Comment on Variant histology is associated with more non‐urothelial tract recurrence but less intravesical recurrence for upper tract urothelial carcinoma after radical nephroureterectomy

Rikiya Taoka, Mikio Sugimoto

International Journal of Urology > 31 > 4 > 418 - 419

article

A national questionnaire survey of Japanese urologists on treatment perspectives for elderly prostate cancer patients

Takuma Kato, Yoichiro Tohi, Tomoko Honda, Iori Matsuda, more

International Journal of Urology > 30 > 8 > 672 - 680

Objective This study conducted a national questionnaire survey of Japanese urologists from a treatment perspective for older patients with prostate cancer. Methods A questionnaire was distributed to 922 teaching hospitals of the Japanese Urological Association. Questionnaire items included years of urologist experience, gender, workplace, treatment equipment owned, daily specialty practice area,...

article

A national questionnaire survey of Japanese urologists on active surveillance for low‐ and intermediate‐risk prostate cancer

Takuma Kato, Yoichiro Tohi, Tomoko Honda, Iori Matsuda, more

International Journal of Urology > 30 > 3 > 289 - 297

Objective To conduct a national questionnaire survey of Japanese urologists on active surveillance (AS) for low‐ and intermediate‐risk prostate cancer (PCa). Methods A questionnaire was sent to 922 Japanese Urological Association Teaching Base Hospitals. The items included were years of experience as a urologist, sex, workplace, treatment equipment owned, specialty area of daily practice, specialty...

article

C‐reactive protein as a prognostic predictor for non‐muscle invasive bladder cancer after intravesical bacillus Calmette‐Guérin therapy: A Japan Urological Oncology Group study analysis

Ryoma Nishikawa, Makito Miyake, Shuichi Morizane, Ryutaro Shimizu, more

International Journal of Urology > 30 > 3 > 299 - 307

Objective To investigate the involvement of pretreatment C‐reactive protein (CRP) and neutrophil‐to‐lymphocyte ratio (NLR) in the prognosis of patients who underwent intravesical bacillus Calmette‐Guérin (BCG) therapy for non‐muscle invasive bladder cancer (NMIBC). Methods The clinicopathological data of 1709 patients with NMIBC who underwent initial intravesical BCG therapy after transurethral...

article

Real‐world treatment patterns and oncological outcomes in early relapse and refractory disease after bacillus Calmette‐Guérin failure in non‐muscle‐invasive bladder cancer

Yasukiyo Murakami, Kazumasa Matsumoto, Makito Miyake, Noriyuki Amano, more

International Journal of Urology > 29 > 10 > 1195 - 1203

Objective To assess real‐world oncological outcomes between the radical cystectomy (RC) group and non‐RC group for early relapse and refractory disease. Methods We retrospectively analyzed 953 patients with recurrent non‐muscle‐invasive bladder cancer (NMIBC) who received bacillus Calmette‐Guérin (BCG) at 31 affiliated hospitals from 2000 to 2019. Patients with missing data on the timing of failure...

article

Editorial Comment from Dr Taoka and Dr Sugimoto to Real‐world treatment patterns and clinical outcomes of Japanese patients with non‐muscle invasive bladder cancer receiving intravesical bacillus Calmette–Guérin treatment

Rikiya Taoka, Mikio Sugimoto

International Journal of Urology > 29 > 10 > 1130 - 1130

article

Editorial Comment from Dr Taoka and Dr Sugimoto to Substratification of patients with highest‐risk non‐muscle invasive bladder cancer helps to identify the candidates for immediate radical cystectomy: A two‐center study

Rikiya Taoka, Mikio Sugimoto

International Journal of Urology > 29 > 9 > 936 - 937

article

Impact of histological variants on outcomes in patients with urothelial carcinoma treated with pembrolizumab: a propensity score matching analysis

Mizuki Kobayashi, Shintaro Narita, Yoshiyuki Matsui, Souhei Kanda, more

BJU International > 130 > 2 > 226 - 234

Objectives To assess the impact of histological variants on survival and response to treatment with pembrolizumab in patients with chemo‐resistant urothelial carcinoma (UC). Patients and Methods The medical records of 755 patients with advanced UC who received pembrolizumab were reviewed retrospectively. Patients were classified into pure UC (PUC) and each variant. Best overall response (BOR) and...

article

Prognostication in Japanese patients with bacillus Calmette‐Guérin‐unresponsive non‐muscle‐invasive bladder cancer undergoing early radical cystectomy

Nobutaka Nishimura, Makito Miyake, Kota Iida, Tatsuki Miyamoto, more

International Journal of Urology > 29 > 3 > 242 - 249

Objectives The US Food and Drug Administration recently defined the clinical term “bacillus Calmette‐Guérin‐unresponsive non‐muscle‐invasive bladder cancer” as a disease state resistant to adequate bacillus Calmette‐Guérin therapy. There is a significant lack of prognostication for this disease even in patients who have undergone early radical cystectomy. This study aimed to identify the clinical...

article

Impact of the objective response to and number of cycles of platinum‐based first‐line chemotherapy for metastatic urothelial carcinoma on overall survival of patients treated with pembrolizumab

Minoru Kato, Takashi Kobayashi, Yoshiyuki Matsui, Katsuhiro Ito, more

International Journal of Urology > 28 > 12 > 1261 - 1267

Objectives To investigate the impact of the number of cycles and objective response to chemotherapy on overall survival in patients with metastatic urothelial carcinoma treated with pembrolizumab. Methods This multicenter, retrospective study included 755 patients from 59 institutions with advanced, chemoresistant urothelial carcinoma who received pembrolizumab. The associations of the overall...

article

Use of surgical checklist during transurethral resection increases detrusor muscle collection rate and improves recurrence‐free survival in patients with non‐muscle‐invasive bladder cancer

Rikiya Taoka, Hiroyuki Tsunemori, Yuki Matsuoka, Kana Kohashiguchi, more

International Journal of Urology > 28 > 7 > 727 - 732

Objective To elucidate the therapeutic benefits of using a surgical checklist during transurethral resection for non‐muscle‐invasive bladder cancer. Methods A nine‐item surgical checklist was established in January 2016 to assess disease risk and resection adequacy, and it was prospectively implemented into clinical practice. Patients diagnosed with non‐muscle‐invasive bladder cancer who underwent...

article

Impact of second transurethral resection on recurrence in patients with high‐grade Ta bladder cancer

Rikiya Taoka, Yuki Matsuoka, Kana Kohashiguchi, Takayoshi Miura, more

International Journal of Urology > 27 > 12 > 1130 - 1135

Objectives To clarify the potential therapeutic benefit of a second transurethral resection for high‐grade Ta bladder cancer. Methods From January 2009 to August 2019, 521 patients with bladder tumors underwent initial transurethral resection procedures at Kagawa University Hospital. Patients diagnosed with high‐grade Ta bladder cancer considered to have been resected completely were included in...

article

A phosphodiesterase 5 inhibitor, tadalafil, suppresses stromal predominance and inflammation in a rat model of nonbacterial prostatitis

Mikio Sugimoto, Xia Zhang, Nobufumi Ueda, Hiroyuki Tsunemori, more

BMC Urology > 2019 > 19 > 1 > 1-7

Background Chronic inflammation is thought to be a major causative factor for the development of benign prostatic hyperplasia (BPH) and lower urinary tract symptoms (LUTS). Tadalafil, a phosphodiesterase type 5 inhibitor (PDE5-I), which has been used for the treatment of BPH-LUTS in daily practice, is known to act at several urinary organs. In this study, focused on the prostate, we examined the effect...

article

Genital elephantiasis possibly caused by chronic inguinal eczema with streptococcal infection

Kozo Nakai, Rikiya Taoka, Mikio Sugimoto, Yasuo Kubota

The Journal of Dermatology > 46 > 6 > e196 - e198

article

Evidenced‐based clinical practice guideline for prostate cancer (summary: Japanese Urological Association, 2016 edition)

Yoshiyuki Kakehi, Mikio Sugimoto, Rikiya Taoka, the committee for establishment of the evidenced‐based clinical practice guideline for prostate cancer of the Japanese Urological Association

International Journal of Urology > 24 > 9 > 648 - 666

These guidelines cover a wide range of topics from prostate cancer epidemiology to palliative care. Questions arising in daily clinical practice have been extracted and formulated as clinical questions. In the 4 years since the previous edition, there have been major changes – for example, robot‐assisted prostatectomy has rapidly come into widespread use, and new hormones and anticancer drugs have...

article

The influence of asymptomatic inflammatory prostatitis on the onset and progression of lower urinary tract symptoms in men with histologic benign prostatic hyperplasia

Rikiya Taoka, Yoshiyuki Kakehi

Asian Journal of Urology > 2017 > 4 > 3 > 158-163

Benign prostatic hyperplasia (BPH) is a condition that greatly affects the quality of life of middle-aged and elderly men. Histopathologically, hyperplastic changes frequently occur in the prostate tissue of elderly men, the incidence of which has been reported to reach approximately 80% in men in their 70s. In clinical practice, approximately 25% of men with histologic BPH are assumed to experience...

article

CF₃DODA-Me induces apoptosis, degrades Sp1, and blocks the transformation phase of the blebbishield emergency program

Rikiya Taoka, Goodwin G. Jinesh, Wenrui Xue, Stephen Safe, more

Apoptosis > 2017 > 22 > 5 > 719-729

Cancer stem cells are capable of undergoing cellular transformation after commencement of apoptosis through the blebbishield emergency program in a VEGF-VEGFR2-dependent manner. Development of therapeutics targeting the blebbishield emergency program would thus be important in cancer therapy. Specificity protein 1 (Sp1) orchestrates the transcription of both VEGF and VEGFR2; hence, Sp1 could act as...

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INFONA - science communication portal

Search results for: Rikiya Taoka

Oncological outcomes of prophylactic urethrectomy at the time of radical cystectomy for bladder cancer: A nationwide multi‐institutional study

Impact of the coronavirus disease pandemic on robot‐assisted radical prostatectomy and urologists' treatment behaviors: A single tertiary center retrospective study

A surgical checklist for optimizing the quality and outcomes of transurethral resection of bladder tumors: A literature review

Editorial Comment on Variant histology is associated with more non‐urothelial tract recurrence but less intravesical recurrence for upper tract urothelial carcinoma after radical nephroureterectomy

A national questionnaire survey of Japanese urologists on treatment perspectives for elderly prostate cancer patients

A national questionnaire survey of Japanese urologists on active surveillance for low‐ and intermediate‐risk prostate cancer

C‐reactive protein as a prognostic predictor for non‐muscle invasive bladder cancer after intravesical bacillus Calmette‐Guérin therapy: A Japan Urological Oncology Group study analysis

Real‐world treatment patterns and oncological outcomes in early relapse and refractory disease after bacillus Calmette‐Guérin failure in non‐muscle‐invasive bladder cancer

Editorial Comment from Dr Taoka and Dr Sugimoto to Real‐world treatment patterns and clinical outcomes of Japanese patients with non‐muscle invasive bladder cancer receiving intravesical bacillus Calmette–Guérin treatment

Editorial Comment from Dr Taoka and Dr Sugimoto to Substratification of patients with highest‐risk non‐muscle invasive bladder cancer helps to identify the candidates for immediate radical cystectomy: A two‐center study

Impact of histological variants on outcomes in patients with urothelial carcinoma treated with pembrolizumab: a propensity score matching analysis

Prognostication in Japanese patients with bacillus Calmette‐Guérin‐unresponsive non‐muscle‐invasive bladder cancer undergoing early radical cystectomy

Impact of the objective response to and number of cycles of platinum‐based first‐line chemotherapy for metastatic urothelial carcinoma on overall survival of patients treated with pembrolizumab

Use of surgical checklist during transurethral resection increases detrusor muscle collection rate and improves recurrence‐free survival in patients with non‐muscle‐invasive bladder cancer

Impact of second transurethral resection on recurrence in patients with high‐grade Ta bladder cancer

A phosphodiesterase 5 inhibitor, tadalafil, suppresses stromal predominance and inflammation in a rat model of nonbacterial prostatitis

Genital elephantiasis possibly caused by chronic inguinal eczema with streptococcal infection

Evidenced‐based clinical practice guideline for prostate cancer (summary: Japanese Urological Association, 2016 edition)

The influence of asymptomatic inflammatory prostatitis on the onset and progression of lower urinary tract symptoms in men with histologic benign prostatic hyperplasia

CF₃DODA-Me induces apoptosis, degrades Sp1, and blocks the transformation phase of the blebbishield emergency program

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