Uroflowmetry and Post-Void Urine Volume in the Initial Evaluation of Suspected Obstructive Prostatic Enlargement

Abstract

of 150-500ml during the study; patients with previous diagnostic of benign prostatic hyperplasia and arterial systemic hypertension were excluded because drugs for the treatment of these diseases could alter the uroflowmetry results. Patients were invited to participate in the study and those who accepted signed informed consent. Patients were asked about age and urinary symptoms with IPSS questionnaire, transabdominal prostatic ultrasound was used for prostatic volume, bladder capacity and post-void residual urine volume and percentage, uroflowmetry for average flow rate, maximum flow (Qmax) rate, voiding time and flow time. It was considered non-obstructive result when patients had ultrasound≤10% post-void residual urine volume and uroflowmetry with Qmax≥15ml/min; it was considered obstructive result when post-void residual volume >10% and Qmax<15ml/min. Uroflowmetry was made with Solar MMS Medical Measurement Systems equipment and post-void residual urine volume with ultrasound Aloka Prosound Alpha 6. Results were collected by the author in Excel program and statistics made with StatCalcfor Mac. Patients were sent to medical consultation with uroflowmetry results for medical treatment. Statistical analysis was made with descriptive measurements and nominal variables with x2 and Pearson for correlation.