Network


Latest external collaboration on country level. Dive into details by clicking on the dots.

Hotspot


Dive into the research topics where Ryuichi Chiba is active.

Publication


Featured researches published by Ryuichi Chiba.


Urologia Internationalis | 1991

Buried Penis: A Surgical Repair

Yoko Kubota; Nobuhisa Ishii; Hiroyuki Watanabe; Chiaki Irisawa; Teruhiro Nakada; Ryuichi Chiba; Tomoaki Fujioka

From 1979 to 1983, surgical reconstruction of the buried penis was performed on 16 boys. They have been followed up for at least 5 years. In 15 boys, satisfactory appearance of the penis was gotten after the operation. In this paper, we introduced our surgical technique and reviewed the records.


Urologia Internationalis | 1987

Significance of Staging Pelvic Lymphadenectomy for Prostatic Cancer

Tomoaki Fujioka; Hiroyuki Koike; Hikaru Aoki; Tsutomu Ohhori; Ryuichi Chiba; Shigehiro Okamoto

Staging pelvic lymphadenectomy in 31 cases in stages A2-C prostatic cancer was performed. In 15 of the cases (48%) lymph node invasion was found. Metastatic tendency strengthened with an increase in Gleason scores, although no metastases were found in 38% of the cases with Gleason scores of 8-10. Percutaneous fine-needle aspiration biopsy guided by lymphography was conducted in 14 cases and 17% were false-negative. Lymph node metastases were found in the common iliac lymph nodes in 47%, external iliac lymph nodes in 67% and internal iliac obturator lymph nodes in 100%. Prolonged lymph drainage in 4 cases (13%) and wound infection in 2 cases (3%) were found as postoperative complications, but they were all treated conservatively. So it was concluded that pelvic lymphadenectomy was a reasonable adjunct to total prostatectomy since it provided an accurate assessment of the anatomic distribution of disease, which could be of help in selecting treatment. Dissection of the lymph nodes of the internal iliac obturator was considered quite sufficient to establish the presence of any lymph node metastases.


The Japanese Journal of Urology | 1986

Studies on male sexual impotence. Report 18. Therapeutic trial with prostaglandin E1 for organic impotence

Nobuhisa Ishii; Hiroyuki Watanabe; Chiaki Irisawa; Yoshihiro Kikuchi; Syunzoh Kawamura; Kiichi Suzuki; Ryuichi Chiba; Michio Tokiwa; Masafumi Shirai


The Japanese Journal of Urology | 1983

[Clinical study on chemo-embolization in malignant urogenital cancer. II. Intra-arterial injection of mitomycin C microcapsules in advanced prostatic cancer].

Ryosuke Nemoto; Hisashi Mori; Ryoetsu Abe; Tetsuro Kato; Masaoki Harada; Kohji Ishida; Ryuichi Chiba; Masaaki Shindo; Hiroaki Kato


The Japanese Journal of Urology | 1983

Studies on male sexual impotence. Report 12. A screening method of organic impotence for the penothermocurve

Nobuhisa Ishii; Tomoaki Fujioka; Ryuichi Chiba; Michio Tokiwa; Masafumi Shirai


The Japanese Journal of Urology | 1983

[Studies on male sexual impotence. Report 15. Treatment of erectile impotence by implantation of Shirai's silicone penile prosthesis].

Nobuhisa Ishii; Tomoaki Fujioka; Shindoh M; Koguchi M; Majima H; Suzuki N; Kanetoh H; Ryuichi Chiba; Tokima M; Shirai M


The Japanese Journal of Urology | 1994

Flow cytometric analysis of prostatic adenocarcinomas after hormone therapy

Takanori Hayashi; Jun Mouri; Seiichi Kurosu; Ryuichi Chiba; Takashi Yokota; Somu Yamaguchi


The Japanese Journal of Urology | 1988

Arterial microchemoembolization in the treatment of urinary bladder carcinoma

Kazunari Sato; Tetsuro Kato; Masatsugu Moriyama; Ryoetsu Abe; Seigi Tsuchida; Ryuichi Chiba


The Japanese Journal of Urology | 1988

Arterial microchemoembolization in the treatment of prostatic carcinoma

Tetsuro Kato; Kazunari Sato; Ryoetu Abe; Masatsugu Moriyama; Seigi Tsuchida; Ryuichi Chiba; Shuhei Sasaki; Shigeki Matsuo


The Japanese Journal of Urology | 1984

[An experience with Z-plasty for the cases of buried penis].

Nobuhisa Ishii; Tomoaki Fujioka; Masaaki Shindoh; Masahide Koguchi; Ryuichiroh Konda; Ikuo Maehara; Ryuichi Chiba; Juhroh Kamei; Michio Tokiwa

Collaboration


Dive into the Ryuichi Chiba's collaboration.

Top Co-Authors

Avatar
Top Co-Authors

Avatar
Top Co-Authors

Avatar
Top Co-Authors

Avatar
Top Co-Authors

Avatar
Top Co-Authors

Avatar
Top Co-Authors

Avatar
Top Co-Authors

Avatar
Top Co-Authors

Avatar
Top Co-Authors

Avatar
Researchain Logo
Decentralizing Knowledge