AUA 2017: The Superior Preservation of Postoperative Renal Function in Robotic Partial Nephrectomy, Compared with Laparoscopy, is Associated with Reduced Parenchymal Volume Loss and Not Shorter Renal Ischemia Time: A Propensity Scored-Matched Analysis
In total, 254 patients with small renal masses and normal contralateral kidneys, who underwent either LPN or RPN were examined. Variables such as sex, age, body mass index, preoperative eGFR, RENAL-NS, and WIT were adjusted anc compared between the groups. For volumetric analysis, contrast enhanced CT was performed 3 months preoperatively and 6 months postoperatively. Rates of decrease in eGFR at 3 and 6 months after surgery was compared, and renal parenchymal volumes before and 6 months after surgery were also calculated.
The results of their study revealed the postoperative decrease in GFR was significantly associated with the surgical procedure but not with WIT. The rate of decrease in eGFR at 3 and 6 months were significantly lower in the RPN group. The parenchymal reduction rate was lower in the RPN group than the LPN group (-23% vs 9.3%, p<0.0001).
In conclusion, renal parenchymal volume was better presented in the RPN group than in the LPN group after adjustments. The multivariate analysis showed that WIT did not reach statiscally significant in the association with post-operative decrease in the renal function. The authors noted the superiority of RPN and compared to LPN, and recommend the use of RPN for future procedures of preserving renal function.
Presented by: Hidekazu Tachibana, MD
Authors: Hidekazu Tachibana, Toshio Takagi, Tsunemori Kondo, Jumpei Lizuka, Kazunari Tanabe
Affiliation:Tokyo’s Women’s Medical University, Department of Urology
Written By: Nobel Nguyen for UroToday.com
at the 2017 AUA Annual Meeting - May 12 - 16, 2017 – Boston, Massachusetts, USA