Learning curve for robot-assisted laparoscopic radical prostatectomy for pathologic T2 disease

Jae Won Lee, Woo Ju Jeong, Sung Yul Park, Enrique I.S. Loreazo, Cheol Kyu Oh, Koon Ho Rha

Research output: Contribution to journalArticle

6 Citations (Scopus)

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.

Original languageEnglish
Pages (from-to)30-33
Number of pages4
JournalKorean Journal of Urology
Volume51
Issue number1
DOIs
Publication statusPublished - 2010 Jan

All Science Journal Classification (ASJC) codes

  • Urology

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