Analyses of operative time according to procedure phases during robot-assisted laparoscopic partial nephrectomy using the iPhone application "My Intuitives".

The identified significant predictive factors associated with longer operative time were the male sex and high complexity in the dissection phase, high complexity in the resection phase, in the tumor bed suture phase as well as in the renorrhaphy and hemostasis phase. These findings may help to predict the difficulty of performing RAPN in terms of operative time.