Robotic-assisted radical cystectomy: the first multicentric Brazilian experience

Robot-assisted radical cystectomy with intracorporeal neobladder: impact of learning curve and long-term assessment of functional outcomes

BACKGROUND

There is paucity of data about functional outcomes of Robot-assisted Radical Cystectomy (RARC) with intracorporeal orthotopic neobladder (ICON), and the impact of learning curve (LC) on those outcomes remains to be addressed. The aim of this study was to report long-term functional outcomes of our single center series of RARC with ICON, assessing the role of LC in their achievement.

METHODS

Patients treated with Robot assisted radical cystectomy with intracorporeal orthotopic neobladder in our center between January 2012 and August 2019 were retrospectively analyzed. Preoperative, clinical, perioperative, pathologic and functional data were reported. The first cases were divided in tertiles, for assessing the impact of learning curve on the outcomes evaluated. Long-term functional outcomes of the whole cohort were evaluated.

RESULTS

Overall, 167 patients were included. Concerning tertiles analysis, operative time (P<0.001), incidence of low (P=0.002) and high grade (P=0.001) complications and hospital stay (P=0.04) decreased significantly over time. Day-time continence recovery probability was significantly lower in the initial case series (1-yr rate 68.4%, 87% and 89.8 for I, II and III tertile, respectively; P=0.04;). Accordingly, Trifecta achievement was significantly higher in II and III tertiles (P=0.01). At a median follow- up of 34 months, the incidence of significant renal function deterioration of the whole cohort was 16.7%. Overall, 12, 24 and 60-mo day-time continence rates were 74.8%, 82.7% and 82.7%.

CONCLUSIONS

Patients treated at the beginning of the learning curve show worse perioperative and functional results. Once standardized the procedure, complications rates, hospital stay, and day-time continence recovery experienced a significant improvement. At a long-term analysis of functional outcomes of our patients, renal function preservation and continence recovery results are encouraging.

Robtic-assisted radical cystectomy: Literature review

Radical cystectomy (RC) with pelvic lymph node dissection (PLND) is the standard treatment for localized muscle-invasive bladder cancer (MIBC) and non-muscle-invasive bladder cancer (NMIBC) with recurrence or high risk of progression. Also, the robotic approach to this type of surgery is well established in the literature. Our objective is to summarize in this manuscript the most relevant articles related to the robotic-assisted radical cystectomy for prostate cancer. We performed a literature review of articles describing the robotic approach to RC in patients with bladder cancer. Also, we described the procedure since the patient selection until the bladder removal. The reconstructive techniques were not included in this review. Twenty-five articles were used to divide our manuscript into key points such as preoperative patient selection and protocols, surgical technique, pathology report, oncological outcomes, complication rates, and quality of life after the procedure. Robotic-assisted radical cystectomy is feasible and safe with satisfactory oncological outcomes. The robotic approach is related to lower blood loss and fewer transfusion rates. However, when compared to open surgery, the use of this technology increases the operative time.