“…Since the last international consultation on BPH [1], where it was suggested that urodynamics has some but not strong predictive value for the outcome of treatment, there has been considerable activity in this field. Two recent reviews by Homma [60] and Clemens [61] reinforced the view of the last consultation. A third review [62] concluded that conventional urodynamic studies are useful in providing preoperative information about detrusor function, and in excluding patients less likely to benefit from prostate surgery.…”