Role of poor urethral sphincter relaxation in men with voiding dysfunction refractory to α-blocker therapy: Clinical characteristics and predictive factors.

PRES was the etiology of voiding dysfunction in 23.4% of the men with LUTS refractory to α-blocker therapy. A simple scale composed of voiding volume, TPV, and urgency/UUI was useful in predicting the presence of PRES before video-urodynamic studies.