AB026. Relationship between post-voided dribbling and erectile dysfunction in men with lower urinary tract symptoms

BACKGROUND: Post voided dribbling (PVD) in men is the symptom of experiencing involuntary loss of urine immediately after a person has finished passing urine, usually after leaving the toilet which distinguished from terminal dribbling. Researches on the PVD are very limited because no proper tool to evaluate PVD. This study was to assess the correlation between PVD and erectile dysfunction (ED) in men with lower urinary tract symptoms (LUTS). METHODS: A total of 205 patients with LUTS were enrolled. Patients filled in international prostate symptom score (IPSS) and Hayllm PVD questionnaire (HPVDQ) that was made by authors. Prostate size, prostate specific antigen, uroflowmetry including Q(max) & post voided residual urine, IPSS, and international index for erectile function-5 (IIEF-5) were also assessed. RESULTS: Patients were classified as ED (129 patients) and non-ED (76 patients) groups. HPVDQ was inversely well correlated with IIEF-5 (r=-0.244, P<0.001). Prevalence of ED was related to PVD severity (P=0.002). Predictive accuracy of HPVDQ for ED was not superior to that of other LUTS (each P>0.05). However, incorporation of HPVDQ into IPSS increased predictive accuracy of LUTS for ED (56.3% to 65.1%). CONCLUSIONS: In men with LUTS, PVD was inversely well correlated with erectile function, and its severity was related with prevalence of ED.