Learning Curve for Robot-Assisted Laparoscopic Radical Prostatectomy for Pathologic T2 Disease
이재원, 박성열, 나군호, 오철규, 정우주, Enrique I.S. Loreazo,
소속 상세정보
이재원 ( Lee Jae-Won )
한양대학교 의과대학 비뇨기과학교실
박성열 ( Park Sung-Yul )
한양대학교 의과대학 비뇨기과학교실
나군호 ( Rha Koon-Ho )
연세대학교 의과대학 비뇨기과학교실
오철규 ( Oh Cheol-Kyu )
연세대학교 의과대학 비뇨기과학교실
정우주 ( Jeong Woo-Ju )
연세대학교 의과대학 비뇨기과학교실
( Enrique I.S. Loreazo )
연세대학교 의과대학 비뇨기과학교실, 비뇨의과학연구소
KMID : 0358320100510010030
Abstract
Purpose: To investigate the learning curve for robot-assisted laparoscopic radical prostatectomy (RALP) for pathologic T2 disease, we examined differences in perioperative outcomes according to time period.
Materials and Methods: Between July 2005 and June 2008, a total of 307 consecutive patients underwent RALP for prostate cancer and 205 patients had pathologic T2 disease. Patients were grouped into 6-month time periods. We collected and examined the patient’s perioperative data including age, body mass index (BMI), prostate-specific antigen (PSA), operation time, estimated blood loss, and positive surgical margin.
Results: There were no significant differences among the groups in age (p=0.705), BMI (p=0.246), PSA (p=0.425), or prostate volume (p=0.380). Operation time (p＜0.001) and estimated blood loss (p＜0.001) decreased significantly with time. The positive surgical margin rate also showed a decreasing trend, but this was not significant (p=0.680).
Conclusions: Operation time and estimated blood loss had a steep learning curve during the early 24 cases and then stabilized. A positive surgical margin rate, however, did not have a significant learning curve, although the positive surgical margin decreased continuously.
키워드
Learning;Prostatectomy;Robotics;Laparoscopy;Prostatic neoplasms
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