PD11-03 NEW APPROACH AND SET OF REFERENCE VALUES FOR QUANTITATIVE ELECTROMYOGRAPHIC ANALYSIS OF THE EXTERNAL URETHRAL SPHINCTER IN MEN

You have accessJournal of UrologyUrodynamics/Incontinence/Female Urology: Incontinence Evaluation1 Apr 2014PD11-03 NEW APPROACH AND SET OF REFERENCE VALUES FOR QUANTITATIVE ELECTROMYOGRAPHIC ANALYSIS OF THE EXTERNAL URETHRAL SPHINCTER IN MEN Francesca Bianchi, Matteo Ferrari, Giovanni La Croce, Marco Cursi, Andrea Salonia, Cristophe Germann, Giancarlo Comi, Ubaldo Del Carro, Hansjörg Danuser, and Agostino Mattei Francesca BianchiFrancesca Bianchi More articles by this author , Matteo FerrariMatteo Ferrari More articles by this author , Giovanni La CroceGiovanni La Croce More articles by this author , Marco CursiMarco Cursi More articles by this author , Andrea SaloniaAndrea Salonia More articles by this author , Cristophe GermannCristophe Germann More articles by this author , Giancarlo ComiGiancarlo Comi More articles by this author , Ubaldo Del CarroUbaldo Del Carro More articles by this author , Hansjörg DanuserHansjörg Danuser More articles by this author , and Agostino MatteiAgostino Mattei More articles by this author View All Author Informationhttps://doi.org/10.1016/j.juro.2014.02.536AboutPDF ToolsAdd to favoritesDownload CitationsTrack CitationsPermissionsReprints ShareFacebookTwitterLinked InEmail INTRODUCTION AND OBJECTIVES Aim of the present study is to evaluate the external urethral sphincter (EUS) function using a new approach to measure quantitative electromyography (EMG) in neurologically healthy men with prostatic pathology and to set reference values of EUS-EMG for men. METHODS 66 continent and neurologically healthy men (mean age: 64 range 51-86) were studied. With the patient in lithotomy position a concentric EMG needle was introduced transperineally in the EUS under triple guidance (transrectal ultrasound (TRUS), oscilloscopic and auditory). Motor Unit Potentials (MUPs) and Interference Pattern (IP) analysis were obtained using multi-MUP and turns/amplitude analysis. MUPs were collected at slight voluntary and reflex activation and only EUS with 15 or more MUPs sampled were included. IP samples were recorded from different sites in both parts of EUS, at different level of voluntary and reflex muscle activation. Patients, after prostate biopsies, were divided in benign prostatic hypertrophy (BPH) and Prostate cancer (PC). The mean values for individual MUP and IP parameters and the turn/amplitude cloud, obtained using the Stalberg's method, were determined for the 2 groups. RESULTS A mean of 22 (range: 15-40) different MUPs was collected from each EUS, for a total of 1290. No statistical differences were found between the 2 groups, therefore values from the BPH and PC groups have been joined to create a reference pool of data. A mean of 33 (range: 15-50) different IP samples were obtained from each patient, for a total of 2086. The regression analysis on log-transformed turns and amplitude values was performed for the 2 groups. The resulting regression lines had slope and intercept: bBPH=0.234, aBPH=1.962 and bPC=0.233, aPC=1.956 respectively. The statistical comparison between the 2 regression lines was not significant, so the distribution of the 2 clouds can be considered identical (Fig1). CONCLUSIONS Using a new approach, the largest consecutive series of male quantitative EUS-EMG is reported. Our data could be considered a valid reference to compare EMG parameters of patients developing urinary incontinence after prostatic surgery, in order to verify a possible involvement of EUS on continence status. © 2014FiguresReferencesRelatedDetails Volume 191Issue 4SApril 2014Page: e287 Advertisement Copyright & Permissions© 2014MetricsAuthor Information Francesca Bianchi More articles by this author Matteo Ferrari More articles by this author Giovanni La Croce More articles by this author Marco Cursi More articles by this author Andrea Salonia More articles by this author Cristophe Germann More articles by this author Giancarlo Comi More articles by this author Ubaldo Del Carro More articles by this author Hansjörg Danuser More articles by this author Agostino Mattei More articles by this author Expand All Advertisement Advertisement PDF downloadLoading ...