[The effect of prostatectomy on nocturia in patients with benign prostatic hyperplasia].

Objective: To explore the effect of prostatectomy on nocturia in patients with benign prostatic hyperplasia (BPH).

Methods: The data of patients who had received prostatectomy for BPH between June 2006 and December 2007 were collected. Nocturia severity was assessed preoperatively and 3 to 6 months after prostatectomy by the number of nocturia events, the time from falling sleep to the first awakening to void (hours of undisturbed sleep, HUS), the score of the nocturia quality of life (N-QOL) questionnaire, the International Prostatic Symptom Score (IPSS) and the quality of life (QOL) score.