Predictors of operative time during radical retropubic prostatectomy and robot-assisted laparoscopic prostatectomy.

Journal Article (Journal Article)


To better predict operative time using patient/surgical characteristics among men undergoing radical retropubic prostatectomy or robot-assisted laparoscopic prostatectomy in order to achieve more efficient operative scheduling and potentially decrease costs in the Veterans Health System.


We analyzed 2619 men treated with radical retropubic prostatectomy (n = 2005) or robot-assisted laparoscopic prostatectomy (n = 614) from 1993 to 2013 from six Veterans Affairs Hospitals in the Shared Equal Access Regional Cancer Hospital database. Age, body mass index, race, biopsy Gleason, prostate weight, undergoing a nerve-sparing procedure or lymph node dissection, and hospital surgical volume were analyzed in multivariable linear regression to identify predictors of operative time and to quantify the increase/decrease observed.


In men undergoing radical retropubic prostatectomy, body mass index, black race, prostate weight and a lymph node dissection all predicted longer operative times (all P ≤ 0.004). In men undergoing robot-assisted laparoscopic prostatectomy, biopsy Gleason score and a lymph node dissection were associated with increased operative time (P ≤ 0.048). In both surgical methods, a lymph node dissection added 25-40 min to the operation. Also, in both, each additional operation per year per center predicted a 0.80-0.89-min decrease in operative time (P ≤ 0.001).


Overall, several factors seem to be associated with quantifiable changes in operative time. If confirmed in future studies, these findings can allow for a more precise estimate of operative time, which could decrease the overall cost to the patient and hospital by aiding in operating room time management.

Full Text

Duke Authors

Cited Authors

  • Simon, RM; Howard, LE; Moreira, DM; Terris, MK; Kane, CJ; Aronson, WJ; Amling, CL; Cooperberg, MR; Freedland, SJ

Published Date

  • August 2017

Published In

Volume / Issue

  • 24 / 8

Start / End Page

  • 618 - 623

PubMed ID

  • 28697533

Electronic International Standard Serial Number (EISSN)

  • 1442-2042

International Standard Serial Number (ISSN)

  • 0919-8172

Digital Object Identifier (DOI)

  • 10.1111/iju.13393


  • eng