MP71-20 INTRAVESICAL PROSTATIC PROTRUSION CAN BE THE GOOD PREDICTING FACTOR ON STORAGE FUNCTION IN PATIENTS WITH BENIGN PROSTATIC ENLARGEMENT FROM THE PERSPECTIVE OF URODYNAMIC STUDY

Abstract

You have accessJournal of UrologyBenign Prostatic Hyperplasia: Evaluation and Symptoms1 Apr 2015MP71-20 INTRAVESICAL PROSTATIC PROTRUSION CAN BE THE GOOD PREDICTING FACTOR ON STORAGE FUNCTION IN PATIENTS WITH BENIGN PROSTATIC ENLARGEMENT FROM THE PERSPECTIVE OF URODYNAMIC STUDY Yoshihisa Matsukawa, Shun Takai, Kazuna Matsuo, Shohei Ishida, Tokunori Yamamoto, and Momokazu Gotoh Yoshihisa MatsukawaYoshihisa Matsukawa More articles by this author , Shun TakaiShun Takai More articles by this author , Kazuna MatsuoKazuna Matsuo More articles by this author , Shohei IshidaShohei Ishida More articles by this author , Tokunori YamamotoTokunori Yamamoto More articles by this author , and Momokazu GotohMomokazu Gotoh More articles by this author View All Author Informationhttps://doi.org/10.1016/j.juro.2015.02.2633AboutPDF ToolsAdd to favoritesDownload CitationsTrack CitationsPermissionsReprints ShareFacebookTwitterLinked InEmail INTRODUCTION AND OBJECTIVES Urodynamic studies (UDS) are required to evaluate precisely the voiding and storage function in patients with symptomatic benign prostatic enlargement (BPE). However, UDS are invasive because catheterization is required to measure detrusor pressure. Recently, some studies have reported on noninvasive parameters predicting bladder outlet obstruction (BOO) and that the intravesical prostatic protrusion (IPP) can be measured noninvasively by ultrasonography and can predict voiding parameters for determining BOO in men with BPE. In contrast, there was no report on noninvasive parameters predicting storage function. Can the IPP predict the storage function? On the basis of urodynamic study results, the present study examined the correlation between the IPP and the storage function in patients with BPE. METHODS We prospectively evaluated 206 untreated patients with lower urinary tract syndrome (LUTS) caused by BPE. Each patient underwent UDS, the IPSS, the OABSS, and ultrasound examination for estimation of prostate volume and IPP. In this UDS, we assessed the first desire to void (FDV), maximum cystometric capacity (MCC), and the frequency of detrusor overactivity (DO) as parameters of storage function. Patients were divided into two groups according to the degree of IPP: group A ≤ 10mm; group B>10mm. We checked the difference of storage function and symptom between the two groups. RESULTS Ultimately, 201 patients were analyzed, with a mean age and mean prostate volume of 68.9 years and 54.9 mL, respectively. The final study sample consisted of 85 in group A (42.3%) and 116 in group B (57.7%). The mean IPP was 15.7mm in in group A and 7.8mm in group B. Although there was no significant difference in age and total IPSS between the two groups, The OABSS and prostate volume in the group B were significantly higher than that in the group A. Comparison of UDS results revealed that The frequency of DO in the group B (63.3%) was significantly higher than that in the group A (37.6%). A significant positive correlation was observed between the frequency of DO and the IPP (r=0.63, p=0.002). On multivariate linear regression analysis, the IPP was independently associated with the OABSS, and the frequency of DO. CONCLUSIONS The result of our study has shown that the IPP is significantly associated with the storage symptom and function in men with LUTS. Our findings suggest that the IPP can be the good and non-invasive predicting factor on storage function in patients with LUTS. © 2015 by American Urological Association Education and Research, Inc.FiguresReferencesRelatedDetails Volume 193Issue 4SApril 2015Page: e920 Advertisement Copyright & Permissions© 2015 by American Urological Association Education and Research, Inc.MetricsAuthor Information Yoshihisa Matsukawa More articles by this author Shun Takai More articles by this author Kazuna Matsuo More articles by this author Shohei Ishida More articles by this author Tokunori Yamamoto More articles by this author Momokazu Gotoh More articles by this author Expand All Advertisement Advertisement PDF downloadLoading ...