Comparison of curative effects between robot-assisted laparoscopic partial nephrectomy and laparoscopic partial nephrectomy in treatment of complex renal tumors

Abstract:

Objective To compare the clinical effects of robot-assisted laparoscopic partial nephrectomy（RAPN） and laparoscopic partial nephrectomy（LPN） in patients with complex renal tumors（R.E.N.A.L score ≥7）.Methods The clinical data of patients with complex renal tumors treated by RAPN and LPN in the Department of Urology of The First Affiliated Hospital of Chongqing Medical University from January 2015 to September 2022 were collected and divided into RAPN group（n=91） and LPN group（n=92） according to different surgical methods. The clinicopathological features and perioperative results in the two groups were compared.Results All surgeries were successfully completed. There were no significant differences in operation time，percentage change in postoperative serum creatinine，blood transfusion rate，and resection margin positive rate between the RAPN group and the LPN group（P>0.05）. The total length of hospital stay[（11.3±4.3） d vs. （14.3±4.2） d]，postoperative length of hospital stay[（5.0±2.6） d vs. （7.4±2.9） d]，intraoperative blood loss[（193.0±103.2） mL vs. （231.6±105.0） mL]，and warm ischemia time[（23.9±6.0） min vs. （28.1±6.6） min] were significantly lower in the RAPN group than in the LPN group（P<0.05）.Conclusion The robot-assisted surgery system provides a three-dimensional high-definition field of vision and has a flexible robotic arm，which makes the operation more precise and accurate. RAPN can shorten warm ischemia time，reduce intraoperative blood loss，and shorten length of hospital stay in the treatment of complex renal tumors.