Reality of nerve sparing and surgical margins in surgeons’ early experience with robot‐assisted radical prostatectomy in Japan

Objective To analyze nerve sparing performance at an early stage of robot‐assisted radical prostatectomy, and the correlation between the surgeons’ experience and the risk of a positive surgical margin in patients treated with robot‐assisted radical prostatectomy. Methods Patients’ records from Janu...

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Bibliographic Details
Published in:International journal of urology 2017-03, Vol.24 (3), p.191-196
Main Authors: Tatsugami, Katsunori, Yoshioka, Kunihiko, Shiroki, Ryoichi, Eto, Masatoshi, Yoshino, Yasushi, Tozawa, Keiichi, Fukasawa, Satoshi, Fujisawa, Masato, Takenaka, Atsushi, Nasu, Yasutomo, Kashiwagi, Akira, Gotoh, Momokazu, Terachi, Toshiro
Format: Article
Language:English
Subjects:
Aged
Biopsy
Cancer surgery
Clinical Competence - statistics & numerical data
Early experience
Humans
Japan
Logistic Models
Male
Margins of Excision
Middle Aged
Multivariate Analysis
Neoplasm Grading
nerve sparing
Organ Sparing Treatments
Propensity Score
Prostate - innervation
Prostate - surgery
Prostate cancer
Prostate-specific antigen
Prostatectomy
Prostatic Neoplasms - surgery
Retrospective Studies
Robotic surgery
Robotic Surgical Procedures
robotics
Robots
Surgeons
surgical margin
Trauma, Nervous System - prevention & control
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Summary:Objective To analyze nerve sparing performance at an early stage of robot‐assisted radical prostatectomy, and the correlation between the surgeons’ experience and the risk of a positive surgical margin in patients treated with robot‐assisted radical prostatectomy. Methods Patients’ records from January 2009 to March 2013 were retrospectively reviewed, and 3469 patients with localized prostate cancer were identified at 45 institutions. Individual surgeon's experience with nerve sparing was recorded as the number of nerve sparing cases among total robot‐assisted radical prostatectomies beginning with the first case during which nerve sparing was carried out. Patients were selected by propensity score matching for nerve sparing, and predictive factors of positive surgical margins were analyzed in patients with and without positive surgical margins. Results A total of 152 surgeons were studied, and the median number of robot‐assisted radical prostatectomy cases for all surgeons was 21 (range 1–511). In all, 54 surgeons (35.5%) undertook nerve sparing during their first robot‐assisted radical prostatectomy case. For 2388 patients selected with (1194) and without (1194) nerve sparing, predictive factors for positive surgical margin were high initial prostate‐specific antigen level (P 
ISSN:0919-8172
1442-2042
DOI:10.1111/iju.13281