Single‐Position Robot‐Assisted Laparoscopic Nephroureterectomy for Duplicated Kidneys and Ureters: Technique and Outcomes

Introduction Robot‐assisted laparoscopic nephroureterectomy has reached a high level of maturity. The necessity of repositioning constitutes the primary surgical challenge in duplex kidney resection, which is further complicated by the extensive resection margins required. This study aims to elaborate on the technique and outcomes of single‐position robot‐assisted nephroureterectomy for duplicated kidneys and ureters. Materials and Methods In our department, 23 patients diagnosed with duplicated renal collecting systems were selected. Ten patients received single‐position robot‐assisted laparoscopic nephroureterectomy (single‐position group), while 13 underwent conventional robot‐assisted laparoscopic nephroureterectomy (nonsingle‐position group). We systematically collected their demographic data, surgical indications, and perioperative variables and meticulously evaluated the surgical outcomes. Results All 23 patients underwent successful surgeries without conversion to open procedures. No significant differences were observed in the baseline clinical characteristics. The single‐position group had a shorter operation time (166.20 ± 21.29 min vs. 208.31 ± 23.30 min, p < 0.001) and drainage tube indwelling time (3.50 ± 0.53 days vs. 4.15 ± 0.69 days, p = 0.017 < 0.05). Additionally, a statistically significant disparity in estimated blood loss (EBL) was noted between the two groups (136.00 ± 18.14 mL vs. 165.77 ± 40.72 mL, p = 0.031 < 0.05). There were no differences in postoperative hospital stays and pre‐ and postoperative estimated glomerular filtration rate (eGFR), and no recurrence was observed. Conclusion Single‐position robot‐assisted nephroureterectomy is both a reliable and secure surgical treatment for duplicated renal collecting systems. This technique demonstrates significant advantages, including reduced operative time, decreased blood loss, fewer complications, and high success rates.