Is robot-assisted radical cystectomy justified in the elderly? A comparison of robotic versus open radical cystectomy for bladder cancer in elderly ≥75 years old.

BACKGROUND AND PURPOSE

Open radical cystectomy (ORC) or minimally invasive radical cystectomy with pelvic lymph node (LN) dissection carries significant morbidity to the elderly because they often have several medical comorbidities that make a surgical approach more challenging. The objective of this study is to compare robot-assisted radical cystectomy (RARC) and ORC in elderly patients.

PATIENTS AND METHODS

A prospective bladder cancer cystectomy database was queried to identify all patients age ≥75 years. A total of 20 patients were identified for each of the RARC and ORC cohorts. A retrospective analysis was performed on these 40 patients undergoing radical cystectomy for curative intent.

RESULTS

Patients in both groups had comparable preoperative characteristics and demographics. Patients had significant medical comorbidities with 80% in each cohort having American Society of anesthesiologists classification of 3 and 50% having had previous abdominal surgery. Complete median operative times for RARC was 461 (interquartile range [IQR] 331, 554) vs 370 minutes for ORC (IQR 294, 460) (P=0.056); however, median blood loss for RARC was 275 mL (IQR 150, 450) vs 600 mL for ORC (IQR 500, 1925). The median hospital stay for RARC was 7 days (IQR 5, 8) vs 14.5 days for ORC (IQR 8, 22) (P<0.001). The major complication (Clavien≥III) rate for RARC was 10% compared with 35% for ORC (P=0.024). There were two positive margins in the ORC group compared with one in the RARC group with median LN yields of 15 nodes (IQR 11, 22) and 17 nodes (IQR 10, 25) (P=0.560) respectively.

CONCLUSIONS

In a comparable cohort of elderly patients, RARC can achieve similar perioperative outcomes without compromising pathologic outcomes, with less blood loss and shorter hospital stays. For an experienced robotic team, RARC should be considered in elderly patients because it may offer significant advantage with respect to perioperative morbidity over ORC.