Presentation on theme: "The influence of ejaculation and abstinence on urinary flow rates luca cindolo cosimo de nunzio petros sountoulides athanasios bantis andrea tubaro luigi."— Presentation transcript:
the influence of ejaculation and abstinence on urinary flow rates luca cindolo cosimo de nunzio petros sountoulides athanasios bantis andrea tubaro luigi schips
background uroflowmetry : the commonest tool to evaluate LUTS reliability and sensitivity questionable possible confounders patients position menstrual phase recent catheterization level of stress and anxiety coffee intake sexual activity
question? Does the ejaculation improve the urinary flow rate in young healthy men?
methods young men, healthy, volounteers pvr, iief, ipss, suprapubic prostate US + daily uroflowmetry for 22 consecutive days !!!! ejaculations only at days 0, 6 and 22 (T0, T6 and T22) (flow measured 2-6 hours after ej)
methods adherence to the protocol: self-reported sexual intercourse vs masturbation : not investigated comparison of the changes before and after ejaculation and during the period of sexual abstinence all uroflowmetry charts were checked by LC, blinded to the subjects real sexual status all subjects were instructed to freely void without abdominal pressure and to repeat if <150 ml
results Distribution of Q max values over the time
conclusions Q max increases after ejaculation (about ~ 3 ml/sec!!! ~15% ) … decreases during the abstinence In the future men with LUTS should be studied in order to undestand if the ejaculation is a confounder especially in evaluating the results of therapies (PDE5i, alpha blockers)