You have accessJournal of UrologyUrodynamics/Lower Urinary Tract Dysfunction/Female Pelvic Medicine: Non-neurogenic Voiding Dysfunction II (MP63)1 Sep 2021MP63-17 DOES ARTIFICIAL URINARY SPHINCTER GENERATE BLADDER OUTLET OBSTRUCTION? Mehdi El Akri, Imad Bentellis, Juliette Hascoet, Quentin Alimi, Romain Mathieu, Lucas Freton, Caroline Voiry, Gregory Verhoest, Karim Bensalah, Andrea Manunta, and Benoît Peyronnet Mehdi El AkriMehdi El Akri More articles by this author , Imad BentellisImad Bentellis More articles by this author , Juliette HascoetJuliette Hascoet More articles by this author , Quentin AlimiQuentin Alimi More articles by this author , Romain MathieuRomain Mathieu More articles by this author , Lucas FretonLucas Freton More articles by this author , Caroline VoiryCaroline Voiry More articles by this author , Gregory VerhoestGregory Verhoest More articles by this author , Karim BensalahKarim Bensalah More articles by this author , Andrea ManuntaAndrea Manunta More articles by this author , and Benoît PeyronnetBenoît Peyronnet More articles by this author View All Author Informationhttps://doi.org/10.1097/JU.0000000000002103.17AboutPDF ToolsAdd to favoritesDownload CitationsTrack CitationsPermissionsReprints ShareFacebookLinked InTwitterEmail Abstract INTRODUCTION AND OBJECTIVE: AMS 800 artificial urinary sphincter (AUS) might be, at least theoretically, the only anti-incontinence surgery preserving the normal function of the lower urinary tract increasing the urethral resistance during bladder filling but with low outlet resistance during the voiding phase thanks to the cuff opening. However, the existing literature suggest that patients may develop post void residual (PVR) or report voiding symptoms after AUS implantation. The aim of our study was to examine the possible bladder outlet obstruction created by AUS implantation. METHODS: All patients who underwent an AUS implantation at a single academic center between 2006 and 2018 were included in a retrospective study. We excluded patients who had a neurogenic intrinsic sphincter deficiency. The primary endpoint was the maximum flow rate (Qmax) variation on free uroflowmetry and the PVR variation 3 months after AUS implantation. We also assessed the rates of clean intermittent catheterization and acute urinary retention postoperatively? We used the McNemar test to compare Qmax and PVR before and after surgery. RESULTS: Ninety-six patients were included. Six (6.3%) of them had acute urinary retention after postoperatively. None of the patients required CIC after surgery. Mean PVR decreased from 22 ml before surgery to 17.5 ml 3 months after surgery (p=0.66) and to 3.1 ml at the last follow-up visit (p =0.11). Mean Qmax decreased from 20.3 ml/s to 17.3ml/s, 3 months after surgery, and reincreased to to 25.2 ml/s at the last follow-up visit (p=0.55). None of the five Patients who underwent a pressure-flow analysis, met the ICS criteria for bladder outlet obstruction (i.e. bladder outlet obstruction <40 in all cases). Mean bladder outlet obstruction index was 31.5. Mean USP voiding symptoms sub-score was 1.9/9 before surgery and 1.2/9 after surgery. CONCLUSIONS: AMS 800 AUS implantation in male patients does not seem to generate bladder outlet obstruction according to noninvasive urodynamic tests. Study of bladder outlet obstruction index by pressure flow analysis should be performed to confirm those preliminary data and formally exclude bladder outlet obstruction after AUS implantation. Source of Funding: None © 2021 by American Urological Association Education and Research, Inc.FiguresReferencesRelatedDetails Volume 206Issue Supplement 3September 2021Page: e1108-e1108 Advertisement Copyright & Permissions© 2021 by American Urological Association Education and Research, Inc.MetricsAuthor Information Mehdi El Akri More articles by this author Imad Bentellis More articles by this author Juliette Hascoet More articles by this author Quentin Alimi More articles by this author Romain Mathieu More articles by this author Lucas Freton More articles by this author Caroline Voiry More articles by this author Gregory Verhoest More articles by this author Karim Bensalah More articles by this author Andrea Manunta More articles by this author Benoît Peyronnet More articles by this author Expand All Advertisement Loading ...