Blue vs white light for transurethral resection of non-muscle-invasive bladder cancer: an abridged Cochrane Review.

Our findings suggest a favourable impact of BL TURBT on the risk of disease recurrence and progression; however, whether this risk reduction is clinically relevant greatly depends on the baseline risk of patients. We did not find an increase in severe surgical complications with BL cystoscopy, and we did not find any trial evidence on other, non-surgical adverse events.