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Transurethral marking incision of the bladder neck: a helpful technique in robot-assisted laparoscopic radical prostatectomy involving post-transurethral resection of the prostate and cancers protruding into the bladder neck

Satoshi Kurokawa12, Keiichi Tozawa2*, Yukihiro Umemoto2, Takahiro Yasui2, Kentaro Mizuno2, Atsushi Okada2, Noriyasu Kawai2, Yutaro Hayashi2 and Kenjiro Kohri2

Author Affiliations

1 Department of Urology, Nagoya Tokushukai General Hospital, Kasugai, Japan

2 Department of Nephro-urology, Nagoya City University Graduate School of Medical Sciences, 1, Kawasumi, Mizuho-cho, Mizuho-ku, 467-8601 Nagoya, Japan

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BMC Urology 2013, 13:40  doi:10.1186/1471-2490-13-40

Published: 17 August 2013



Bladder neck transection is one of the most difficult procedures for robot-assisted laparoscopic radical prostatectomy (RALP), particularly in patients who have undergone previous transurethral resection of the prostate (TUR-P), and in those with large median lobes or prostate cancer protruding into the bladder neck. To ensure negative surgical margins and safely preserve the ureteral orifices during bladder neck transection, we propose the use of the transurethral resectoscope for making the incision in the bladder neck before initiating RALP. Thus, we developed a technique for bladder neck transection to facilitate this operation in such patients.

Case presentation

Two Japanese men, aged 61 and 63 years, who were diagnosed with prostate cancer, received a transurethral marking incision of the bladder neck before starting RALP; prostate cancer developed in one patient after TUR-P and the other patient had cancer protruding into the bladder neck. A transurethral resectoscope was used to closely observe the ureteral orifices and bladder necks; the bladder necks were marked to indicate the depth from the mucosa to the muscular layer. During the RALP, the bladder necks were dissected to indicate the depth of the marking incision. The surgical margins were negative and perioperative complications did not occur. The Foley catheters were removed on postoperative day 6, according to the usual protocol. No urinary leakage from the anastomosis sites was observed.


This technique, involving the use of an ordinary transurethral resectoscope, may be an easy procedure to ensure negative surgical margins, safely preserve the ureteral orifices, avoid increasing the bladder neck diameter, and achieve a good quality vesicourethral anastomosis that prevents the risk of suture-related tissue tears.

Bladder neck; Prostate cancer; Robot-assisted laparoscopic radical prostatectomy; Transurethral incision; Transurethral resection of the prostate