TABLE 21Summary of learning curve measures in case series

StudyReported outcomes/measuresNumber of casesRoboticLaparoscopicOther information reported in study
Secin 2010158Margin rate6274Case 1: 24%
Case 250: 9%
Hong 2010155Margin rate469Case 1: 27%Linear trend
Case 200: 25%
Case 400: 21%
Tewari 2010154Margin rate1340Case 1: 9%
Case 100: 7%
McNeill 2010156Margin rate300Case 1–50: 27%Log-linear trend
Case 251–300: 14.7%
Operation timeCase 1: 200 minutes
Case 200: 140 minutes
ComplicationsCase 1: 29%
Case 250: < 1%
Samadi 2010159Margin rate1181Case 1: 8.5%
Case 590: 4.3%
Rodriguez 2010160Margin rate400Case 1: 32%
Case 400: 13.3%
Jaffe 2009161Margin rate278Case 1–12: 58%
Case 12–189: 23%
Case 278: 9%
Operation timeCase 1–12: 250 minutes
Case 12–189: 165 minutes
Case 278: 134 minutes
Eden 2009157Margin rate1000Series average: 13.3%No trend noted
ComplicationsNo trend noted
Blood lossSeries average: 200 mlStabilised after 200 cases
PotencyCase 1: 23%Stabilised after 700 cases
Case 1000: 86%
Operation timeSeries average: 177 minutesStabilised after 200 cases
Vickers 2009162Biochemical recurrence4702Case 10: 16%
Case 250: 15.5%
Case 750: 8.2%
Martinez-Pineiro 2006163Margin rate604Decreased significantly by 101 cases
Blood transfusionCase 1: 25%Stabilised by 200 cases
Case 600: 7%
Operation timeSeries average: 201 minutes

From: 4, Clinical effectiveness of robotic compared with laparoscopic techniques

Cover of Systematic Review and Economic Modelling of the Relative Clinical Benefit and Cost-Effectiveness of Laparoscopic Surgery and Robotic Surgery for Removal of the Prostate in Men with Localised Prostate Cancer
Systematic Review and Economic Modelling of the Relative Clinical Benefit and Cost-Effectiveness of Laparoscopic Surgery and Robotic Surgery for Removal of the Prostate in Men with Localised Prostate Cancer.
Health Technology Assessment, No. 16.41.
Ramsay C, Pickard R, Robertson C, et al.
Southampton (UK): NIHR Journals Library; 2012 Nov.
© 2012, Crown Copyright.

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