Robot-assisted nephroureterectomy for upper tract urothelial carcinoma: the Taiwan Robot Urological Surgery Team (TRUST) experience

Background: To report Taiwan's experience in robot-assisted laparoscopic nephroureterectomy (RANU) for upper tract urothelial carcinoma (UTUC). Methods: Twenty patients with a diagnosis of renal pelvic or ureteral urothelial carcinoma underwent RANU at three medical centers. We performed RANU by re-docking the robot after the nephrectomy with or without repositioning for excision of the distal ureter and bladder cuff. Results: From November 2010 to July 2013, a total of 20 patients with a mean age of 70.1 +/- 9.9 years (range 43 to 92 years) and mean body mass index (BMI) of 22.9 +/- 3.8 kg/m(2) underwent RANU for renal pelvic or ureteral urothelial carcinoma. Mean operative time was 251.6 +/- 126.7 minutes (range 110 to 540 minutes), estimated blood loss was 50.0 +/- 42.9 mL (range 10 to 200 mL), and mean length of hospital stay was 6.7 +/- 2.4 days (range 4 to 12 days). Pathology data revealed 19 high and one low-grade urothelial carcinoma and staged Ta for three, T1 for five, T2 for five and T3 for seven. With a mean follow-up of 14.7 months (range 2 to 34 months), three intravesical recurrences developed in the bladder, and four of them also developed metastatic disease. Conclusions: The TRUST early experience showed that RANU is a safe and feasible minimally invasive procedure for UTUC.