PD34-09 THE UTILITY OF UROFLOWMETRY PARAMETERS IN URETHROPLASTY SURVEILLANCE IS LIMITED

Abstract

You have accessJournal of UrologyTrauma/Reconstruction/Diversion: Urethral Reconstruction (including Stricture, Diverticulum) III1 Apr 2017PD34-09 THE UTILITY OF UROFLOWMETRY PARAMETERS IN URETHROPLASTY SURVEILLANCE IS LIMITED Yooni Yi, Paholo Barboglio Romo, and Bahaa Malaeb Yooni YiYooni Yi More articles by this author , Paholo Barboglio RomoPaholo Barboglio Romo More articles by this author , and Bahaa MalaebBahaa Malaeb More articles by this author View All Author Informationhttps://doi.org/10.1016/j.juro.2017.02.1532AboutPDF ToolsAdd to favoritesDownload CitationsTrack CitationsPermissionsReprints ShareFacebookTwitterLinked InEmail INTRODUCTION AND OBJECTIVES Limited data supports the use of uroflowmetry parameters (Qmax:max flow; Qave: average flow; VV: voided volume) to assess for urethral patency and rule out stricture recurrence in post-urethroplasty surveillance. METHODS From years 2012-2015, data were collected on 125 patients who underwent anterior and posterior urethroplasties and had follow-up at 3 and 12 months with cystoscopy, International Prostate Symptom Score (I-PSS) and uroflowmetry parameters. The ability to pass a 17 French flexible cystoscope was defined as a successful repair. Analyzing the receiver operating characteristics we calculated the area under the curve (AUC) to compare uroflowmetry parameters and I-PSS against cystoscopy. RESULTS There were 208 encounter visits within the first 12 months, of which there were 164 cystoscopy procedures. Success was determined in 147/164 (90%). Uroflowmetry parameters were provided in 105 patients and 103 subjects were not able to void or had a VV < 100 mL. I-PSS data was available for 136 patients. Qmax of ≥10 ml/sec has a high positive predictive (92%) value and our study confirmed a significant AUC of 0.75 (p=0.002). However, the NPV is limited and cystoscopy showed that half of these subjects with a low flow (<10 ml/sec) won't have a stricture. The AUC for Qmax ≥15 mL was 0.705 (p = 0.002) with a sensitivity of 92% and specificity of 34%. When comparing (Qmax-Qave) > 8 to cystoscopy, the AUC was 0.691 (p = 0.018) with a 93% sensitivity and 29% specificity. When assessing the AUC of I-PSS Weakness score of <3, the AUC was found to not be significant. No significance was found when completing a univariate analysis of I-PSS total score and quality of life score to cystoscopy. CONCLUSIONS Uroflowmetry parameters of Qmax >10 mL, Qmax >15 mL, Qmax-Qave > 8 mL are not specific enough to determine recurrences of urethral stricture. The I-PSS total score, weakness score or QOL are neither sensitive nor specific enough to detect recurrences. © 2017FiguresReferencesRelatedDetails Volume 197Issue 4SApril 2017Page: e660 Advertisement Copyright & Permissions© 2017MetricsAuthor Information Yooni Yi More articles by this author Paholo Barboglio Romo More articles by this author Bahaa Malaeb More articles by this author Expand All Advertisement Advertisement PDF downloadLoading ...