2308 COMPARISON OF THE OBSTRUCTIVE EFFECT OF A 6 FR CATHETER ON PRESSURE-FLOW STUDY BETWEEN MEN AND WOMEN

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You have accessJournal of UrologyUrodynamics/Incontinence/Female Urology: Urodynamic Testing1 Apr 20122308 COMPARISON OF THE OBSTRUCTIVE EFFECT OF A 6 FR CATHETER ON PRESSURE-FLOW STUDY BETWEEN MEN AND WOMEN Sangchul Lee, Jongjin Oh, ByungKi Lee, Young Min Joo, Cheol Yong Yoon, Chang Wook Jeong, Seong Jin Jeong, Sung Kyu Hong, Seok-Soo Byun, and Sang Eun Lee Sangchul LeeSangchul Lee Seongnam, Korea, Republic of More articles by this author , Jongjin OhJongjin Oh Seongnam, Korea, Republic of More articles by this author , ByungKi LeeByungKi Lee Seongnam, Korea, Republic of More articles by this author , Young Min JooYoung Min Joo Seongnam, Korea, Republic of More articles by this author , Cheol Yong YoonCheol Yong Yoon Seongnam, Korea, Republic of More articles by this author , Chang Wook JeongChang Wook Jeong Seongnam, Korea, Republic of More articles by this author , Seong Jin JeongSeong Jin Jeong Seongnam, Korea, Republic of More articles by this author , Sung Kyu HongSung Kyu Hong Seongnam, Korea, Republic of More articles by this author , Seok-Soo ByunSeok-Soo Byun Seongnam, Korea, Republic of More articles by this author , and Sang Eun LeeSang Eun Lee Seongnam, Korea, Republic of More articles by this author View All Author Informationhttps://doi.org/10.1016/j.juro.2012.02.2489AboutPDF ToolsAdd to favoritesDownload CitationsTrack CitationsPermissionsReprints ShareFacebookTwitterLinked InEmail INTRODUCTION AND OBJECTIVES Pressure-flow studies are important in assessment of the bladder outlet obstruction (BOO) in men and women. However, the use of transurethral catheters during the pressure-flow studies has brought up concerns about its potential obstructive nature which could result in false positive BOO diagnosis. We evaluated whether transurethral catheter might have potential obstructive effect in pressure-flow studies according to the gender. METHODS From June 2003 to July 2011, clinical data of 4,251 consecutive patients who underwent urodynamic studies were reviewed. We analyzed only the adult patients (n = 220) who voided a volume varying by less than 20% between the free-flow studies and pressure-flow studies using 6 Fr double lumen transurethral catheter and had no neurologic or anatomic disease affecting the bladder contraction. RESULTS The mean age of our cohort was 60.5 ±12.1 years old. Of the 220 patients, 129 (58.6%) were men. In entire cohort, the maximal flow rate (Qmax) was significantly higher in the free-flow studies than in the pressure-flow studies (20.9 vs. 18.5 ml/s, p = 0.015). In women, the free-flow studies demonstrated significantly higher Qmax than the pressure-flow studies (25.8 vs. 22.7 ml/s, p < 0.001). However, there was no significant difference between the free-flow studies and the pressure-flow studies in men (17.5 vs. 15.6 ml/s, p = 0.233). Although Qmax was significantly higher in the free-flow studies than in the pressure-flow studies in men with prostate volume < 25 ml (16.6 vs. 12.9 ml/s, p < 0.001), there was no significant difference between both studies in men with prostate volume > 25 ml (17.6 vs. 16.1 ml/s, p = 0.514). CONCLUSIONS This study showed that 6 Fr double lumen transurethral catheter could affect Qmax in the pressure-flow studies in men with small prostate and women. Thus, we should consider Qmax in the free-flow studies in addition to the pressure-flow studies in evaluating BOO in these patients. © 2012 by American Urological Association Education and Research, Inc.FiguresReferencesRelatedDetails Volume 187Issue 4SApril 2012Page: e931 Advertisement Copyright & Permissions© 2012 by American Urological Association Education and Research, Inc.MetricsAuthor Information Sangchul Lee Seongnam, Korea, Republic of More articles by this author Jongjin Oh Seongnam, Korea, Republic of More articles by this author ByungKi Lee Seongnam, Korea, Republic of More articles by this author Young Min Joo Seongnam, Korea, Republic of More articles by this author Cheol Yong Yoon Seongnam, Korea, Republic of More articles by this author Chang Wook Jeong Seongnam, Korea, Republic of More articles by this author Seong Jin Jeong Seongnam, Korea, Republic of More articles by this author Sung Kyu Hong Seongnam, Korea, Republic of More articles by this author Seok-Soo Byun Seongnam, Korea, Republic of More articles by this author Sang Eun Lee Seongnam, Korea, Republic of More articles by this author Expand All Advertisement Advertisement PDF downloadLoading ...