589 A PROSPECTIVE STUDY ON THE CONSISTENCY AND REPRODUCIBILITY OF UROFLOWMETRY STUDIES AND POST VOID RESIDUAL MEASUREMENTS AT A BLADDER VOLUME OF 50-100% ESTIMATED BLADDER CAPACITY IN CHILDREN

Abstract

You have accessJournal of UrologyPediatrics: Bladder Dysfunction - Myelodysplasia, Voiding Dysfnction, Enuresis1 Apr 2012589 A PROSPECTIVE STUDY ON THE CONSISTENCY AND REPRODUCIBILITY OF UROFLOWMETRY STUDIES AND POST VOID RESIDUAL MEASUREMENTS AT A BLADDER VOLUME OF 50-100% ESTIMATED BLADDER CAPACITY IN CHILDREN Ma. Fluorence Flores and David Bolong Ma. Fluorence FloresMa. Fluorence Flores Manila, Philippines More articles by this author and David BolongDavid Bolong Manila, Philippines More articles by this author View All Author Informationhttps://doi.org/10.1016/j.juro.2012.02.666AboutPDF ToolsAdd to favoritesDownload CitationsTrack CitationsPermissionsReprints ShareFacebookTwitterLinked InEmail INTRODUCTION AND OBJECTIVES Uroflowmetry and post void residual studies are considered fundamental, noninvasive diagnostic tools in Pediatric Urology. Parameters are frequently used in the evaluation and reassessment of children with lower urinary tract dysfunction. Often the therapeutic decisions are based on a single or on a few determinations.Therefore, it is crucial to know whether these tests are reproducible to a clinically acceptable degree. Since current nomograms have been constructed from 1 to 2 voids per child, variability of flow parameters is unknown. This leads us to the question of “How many times should uroflowmetry and post void residual urine measurements be done to a single patient in order to get a reliable and consistent result?” In this study, we set the prevoid volume at 50 to 100% of the estimated bladder capacity of each child. OBJECTIVE To assess the repeatability and consistency of uroflowmetry and post void residual urine (PVR) determination in children at a bladder volume of 50-100% of the estimated bladder capacity (EBC). METHODS From April 2011- September 2011, twenty-five (25) children, ages 3-8 years, underwent uroflowmetry and post void urine measurements. Values were taken for 3 consecutive micturitions at a bladder volume of 50-100% of the estimated bladder capacity, as measured by transabdominal ultrasound. A total of 75 micturitions were studied. Uroflowmetry parameters and PVR were recorded and analyzed. RESULTS There were no significant differences in the measurements across three trials for maximum flow rate (Qmax) and prevoid urine volume. There were significant differences in the measurements of PVR and uroflowmetry curves. PVR urine volumes were not related to prevoid urine volumes. Age, height and weight were related to the prevoid volumes. CONCLUSIONS Uroflowmetry and post void residual tests will give informative and reliable values at a bladder volume of 50-100% estimated bladder capacity. In cases of any abnormal flow curve or pattern at this bladder capacity, a repeat examination is prudent; despite normal maximum flow rate (Qmax) and negligible post void residual urine. © 2012 by American Urological Association Education and Research, Inc.FiguresReferencesRelatedDetails Volume 187Issue 4SApril 2012Page: e240 Advertisement Copyright & Permissions© 2012 by American Urological Association Education and Research, Inc.MetricsAuthor Information Ma. Fluorence Flores Manila, Philippines More articles by this author David Bolong Manila, Philippines More articles by this author Expand All Advertisement Advertisement PDF downloadLoading ...