Transurethral en bloc submucosal hydrodissection versus conventional resection for resection of non-muscle invasive bladder cancer (HYBRIDBLUE): a randomized, multicentre trial.

To determine whether transurethral en bloc submucosal hydrodissection of bladder tumours (TUEB) improves the quality of the resection compared to conventional transurethral resection (TURBT) in patients with NMIBC.