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[Comment] Robot-assisted versus open cystectomy

Open radical cystectomy with pelvic lymph node dissection is an integral component of the treatment for high-risk, non-muscle-invasive, and muscle-invasive bladder cancer.1 When the surgery is done by an experienced surgeon, the approach practically guarantees patient outcomes that have remained unchanged since the 1980s.2 New surgical techniques must be compared against this standard with regard to parameters such as morbidity, quality of life, costs, and oncological outcomes. In The Lancet, Dipen J Parekh and colleagues report a multicentre, randomised controlled, phase 3, non-inferiority study3 comparing open cystectomy and robot-assisted cystectomy.