Mottrie, Alexandre; Mazzone, Elio; Wiklund, Peter; Graefen, Markus; Collins, Justin W; De Groote, Ruben; Dell'Oglio, Paolo; ... Gallagher, Anthony G; + view all Mottrie, Alexandre; Mazzone, Elio; Wiklund, Peter; Graefen, Markus; Collins, Justin W; De Groote, Ruben; Dell'Oglio, Paolo; Puliatti, Stefano; Gallagher, Anthony G; - view fewer (2021) Objective assessment of intraoperative skills for robot-assisted radical prostatectomy (RARP): results from the ERUS Scientific and Educational Working Groups Metrics Initiative. BJU International , 128 (1) pp. 103-111. 10.1111/bju.15311.

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Abstract

Objective: To develop and seek consensus from procedure experts on the metrics that best characterise a reference robot-assisted radical prostatectomy (RARP) and determine if the metrics distinguished between the objectively assessed RARP performance of experienced and novice urologists, as identifying objective performance metrics for surgical training in robotic surgery is imperative for patient safety. / Materials and methods: In Study 1, the metrics, i.e. 12 phases of the procedure, 81 steps, 245 errors and 110 critical errors for a reference RARP were developed and then presented to an international Delphi panel of 19 experienced urologists. In Study 2, 12 very experienced surgeons (VES) who had performed >500 RARPs and 12 novice urology surgeons performed a RARP, which was video recorded and assessed by two experienced urologists blinded as to subject and group. Percentage agreement between experienced urologists for the Delphi meeting and Mann–Whitney U- and Kruskal–Wallis tests were used for construct validation of the newly identified RARP metrics. / Results: At the Delphi panel, consensus was reached on the appropriateness of the metrics for a reference RARP. In Study 2, the results showed that the VES performed ~4% more procedure steps and made 72% fewer procedure errors than the novices (P = 0.027). Phases VIIa and VIIb (i.e. neurovascular bundle dissection) best discriminated between the VES and novices. / Limitations: VES whose performance was in the bottom half of their group demonstrated considerable error variability and made five-times as many errors as the other half of the group (P = 0.006). / Conclusions: The international Delphi panel reached high-level consensus on the RARP metrics that reliably distinguished between the objectively scored procedure performance of VES and novices. Reliable and valid performance metrics of RARP are imperative for effective and quality assured surgical training.

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