261 Identifying surgical factors predicting postoperative potency in robot-assisted radical prostatectomy (v) Was diathermy used during transection of the plexus of Santorini? (Y/N) (vi) Was diathermy used during transection of the urethra? (Y/N) (vii) Was the colliculus in sight during transection of the urethra? (Y/N) (viii) Was a bladder neck reconstruction performed? (Y/N) (ix) Was the Rocco stitch (median fibrous raphe) reconstruction used? (Y/N) (x) Was a barbed suture used for the bladder/urethra anastomosis? (Y/N) (xi) How many stitch throws were used in the anastomosis? (n) The procedure for surgical video analysis. The surgical video was assessed in three phases. First, the GEARS assessment was performed on all surgical videos by reviewing the surgical video in a normal media player. Second, the PACE assessment was performed on all surgical videos. For this assessment, the video was also shown using a normal media player. For both the GEARS and PACE assessment methods, the video was run at normal speed, and the assessment templates were filled in by hand by the rater (AB). Third, the PROTEST assessment was performed for the entire surgical video using customizable video analysis software “digital Video Coach” developed by ZEAL IT (Eindhoven, The Netherlands) (Fig. 2). The surgical video was assessed at 50% of the normal speed, since this is a more detailed assessment and running the video at normal speed proved to be too quick for the assessment. TThe video analysis software “Digital Video Coach” made it possible to measure the length of the phases of the surgery and the length of the different perioperative events. Two sets of labels were created in order to define the different phases of Figure 2 overview of the video analysis software Digital Video Coach.
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