Robot-assisted radical prostatectomy: Modified ultradissection reduces pT2 positive surgical margins on the bladder neck

Motoo Araki, Wooju Jeong, Sung Yul Park, Young Hoon Lee, Yasutomo Nasu, Hiromi Kumon, Sung Joon Hong, KoonHo Rha

Research output: Contribution to journalArticle

Abstract

The purpose of this study was to compare the positive surgical margin (PSM) rates of 2 techniques of robot-assisted radical prostatectomy (RARP) for pT2 (localized) prostate cancer. A retrospective analysis was conducted of 361 RARP cases, performed from May 2005 to September 2008 by a single surgeon (KHR) at our institution (Yonsei University College of Medicine). In the conventional technique, the bladder neck was transected first. In the modified ultradissection, the lateral border of the bladder neck was dissected and then the bladder neck was transected while the detrusor muscle of the bladder was well visualized. Perioperative characteristics and outcomes and PSM rates were analyzed retrospectively for pT2 patients (n = 217), focusing on a comparison of those undergoing conventional (n = 113) and modified ultradissection (n = 104) techniques. There was no difference between the conventional and modified ultradissection group in mean age, BMI, PSA, prostate volume, biopsy Gleason score, and D'Amico prognostic criteria distributions. The mean operative time was shorter (p < 0.001) and the estimated blood loss was less (p < 0.01) in the modified ultradissection group. The PSM rate for the bladder neck was significantly reduced by modified ultradissection, from 6.2% to 0% (p < 0.05). In conclusion, modified ultradissection reduces the PSM rate for the bladder neck.

Original languageEnglish
Pages (from-to)35-41
Number of pages7
JournalActa Medica Okayama
Volume68
Issue number1
Publication statusPublished - 2014 Mar 3

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Prostatectomy
Urinary Bladder
Robots
Biopsy
Medicine
Muscle
Blood
Neoplasm Grading
Operative Time
Margins of Excision
Prostate
Prostatic Neoplasms
Muscles

All Science Journal Classification (ASJC) codes

  • Biochemistry, Genetics and Molecular Biology(all)

Cite this

Araki, Motoo ; Jeong, Wooju ; Park, Sung Yul ; Lee, Young Hoon ; Nasu, Yasutomo ; Kumon, Hiromi ; Hong, Sung Joon ; Rha, KoonHo. / Robot-assisted radical prostatectomy : Modified ultradissection reduces pT2 positive surgical margins on the bladder neck. In: Acta Medica Okayama. 2014 ; Vol. 68, No. 1. pp. 35-41.
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abstract = "The purpose of this study was to compare the positive surgical margin (PSM) rates of 2 techniques of robot-assisted radical prostatectomy (RARP) for pT2 (localized) prostate cancer. A retrospective analysis was conducted of 361 RARP cases, performed from May 2005 to September 2008 by a single surgeon (KHR) at our institution (Yonsei University College of Medicine). In the conventional technique, the bladder neck was transected first. In the modified ultradissection, the lateral border of the bladder neck was dissected and then the bladder neck was transected while the detrusor muscle of the bladder was well visualized. Perioperative characteristics and outcomes and PSM rates were analyzed retrospectively for pT2 patients (n = 217), focusing on a comparison of those undergoing conventional (n = 113) and modified ultradissection (n = 104) techniques. There was no difference between the conventional and modified ultradissection group in mean age, BMI, PSA, prostate volume, biopsy Gleason score, and D'Amico prognostic criteria distributions. The mean operative time was shorter (p < 0.001) and the estimated blood loss was less (p < 0.01) in the modified ultradissection group. The PSM rate for the bladder neck was significantly reduced by modified ultradissection, from 6.2{\%} to 0{\%} (p < 0.05). In conclusion, modified ultradissection reduces the PSM rate for the bladder neck.",
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Araki, M, Jeong, W, Park, SY, Lee, YH, Nasu, Y, Kumon, H, Hong, SJ & Rha, K 2014, 'Robot-assisted radical prostatectomy: Modified ultradissection reduces pT2 positive surgical margins on the bladder neck', Acta Medica Okayama, vol. 68, no. 1, pp. 35-41.

Robot-assisted radical prostatectomy : Modified ultradissection reduces pT2 positive surgical margins on the bladder neck. / Araki, Motoo; Jeong, Wooju; Park, Sung Yul; Lee, Young Hoon; Nasu, Yasutomo; Kumon, Hiromi; Hong, Sung Joon; Rha, KoonHo.

In: Acta Medica Okayama, Vol. 68, No. 1, 03.03.2014, p. 35-41.

Research output: Contribution to journalArticle

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AU - Araki, Motoo

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AU - Lee, Young Hoon

AU - Nasu, Yasutomo

AU - Kumon, Hiromi

AU - Hong, Sung Joon

AU - Rha, KoonHo

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