Higher risk of intraoperative bleeding in right-sided renal tumors compared to left-sided tumors in robot-assisted partial nephrectomy.

Right-sided tumors had a significantly larger EBL than left-sided tumors in RAPN. The difference was evident in the most experienced surgeon who performed RAPN for larger and complicated cases. This information may help surgeons decide whether to clamp the renal artery and vein during tumor resection in large and complicated right-sided tumors.