Safety and Efficacy of En Bloc Transurethral Resection With 1.9 µm Vela Laser for Treatment of Non-Muscle-invasive Bladder Cancer

En bloc transurethral resection with 1.9 µm Vela laser in the treatment of non-muscle-invasive bladder cancer demonstrates an advantage over conventional transurethral resection of bladder tumor in reducing intraoperative complications, improving the quality of the specimens admitted for pathologic assessment, and shortening the duration of postoperative continuous bladder irrigation.