MP10-01 ASSOCIATION BETWEEN VAGINAL PRESSURE AND TRANSVERSUS ABDOMINIS MUSCLE THICKNESS IN PATIENTS WITH PELVIC ORGAN PROLAPSE

Abstract

You have accessJournal of UrologyUrodynamics/Lower Urinary Tract Dysfunction/Female Pelvic Medicine: Pelvic Prolapse1 Apr 2016MP10-01 ASSOCIATION BETWEEN VAGINAL PRESSURE AND TRANSVERSUS ABDOMINIS MUSCLE THICKNESS IN PATIENTS WITH PELVIC ORGAN PROLAPSE Tomohiro Matsuo, Akihiro Asai, Kojiro Ohba, Yasuyoshi Miyata, and Hideki Sakai Tomohiro MatsuoTomohiro Matsuo More articles by this author , Akihiro AsaiAkihiro Asai More articles by this author , Kojiro OhbaKojiro Ohba More articles by this author , Yasuyoshi MiyataYasuyoshi Miyata More articles by this author , and Hideki SakaiHideki Sakai More articles by this author View All Author Informationhttps://doi.org/10.1016/j.juro.2016.02.2331AboutPDF ToolsAdd to favoritesDownload CitationsTrack CitationsPermissionsReprints ShareFacebookTwitterLinked InEmail INTRODUCTION AND OBJECTIVES Decreased vaginal pressure (VP) due to weakened pelvic floor muscles caused by parturition, aging, and decreased female hormone production is a major factor of urinary incontinence and pelvic organ prolapse (POP). It is suggested that transversus abdominis muscle thickness (TAMT) may be used as a marker to estimate pelvic floor muscle strength. However few study has investigated the association between VP and TAMT in patients with POP, which our study aims to do. METHODS The subjects were assigned to two groups: POP (Group P, n = 56, mean age 71.4±7.2 years) and non-POP (controls; Group C, n = 52, mean age 70.1±6.8 years). TAMT was measured in the supine position with an ultrasound system (HITACHI Aloka Medical, Ltd. HI VISION Avius®, 7.5MHz, B mode). The measurement position was the middle of the costal margin and the iliac crest on the right anterior axillary line, with reference to previous reports. TAMT was measured at four time points: at rest; at the peak inspiratory flow; at the peak expiratory flow (PEF); and at the maximum TAM contraction. We examined the association between POP and the TAMT. VP was measured with a perineometer (PERITRON®, Cardio Design Pty Ltd, Oakleigh, Victoria, Australia). RESULTS In Group P, the TAMT was significantly less at the PEF and the maximum TAM contraction (3.6±1.2 mm in Group P and 4.2±1.2 mm in Group C at the PEF; P = 0.021, 3.8±1.2 mm in Group P and 5.3±1.3 mm in Group C at the maximum TAM contraction). In addition, Group P showed a significantly lower vaginal contraction pressure (9.5±4.5 cmH2O in Group P; 20.3±7.5 cmH2O in Group C; P < 0.001) and significantly shorter duration of vaginal contraction (4.3±1.7 seconds in Group P; 6.9±2.9 seconds in Group C; P < 0.001). For the association between the TAMT and VP, only the TAMT at the maximum TAM contraction showed a significantly positive correlation with VP (P < 0.001; r = 0.441). Similarly, during vaginal contraction, only the TAMT at the maximum TAM contraction showed a significant positive correlation with VP (P < 0.001; r = 0.328). There was no correlation of the stage of POP with VP or with the TAMT. CONCLUSIONS In patients with POP, VP is lower and there is a correlation between VP and the TAMT at the maximum TAM contraction. Recently, drawing in the abdominal muscles is being regarded as a method to strengthen the pelvic floor muscles. The measurement of VP and the TAMT may be a predictor for POP and be useful to determine the therapeutic effect of rehabilitation. © 2016FiguresReferencesRelatedDetails Volume 195Issue 4SApril 2016Page: e102 Advertisement Copyright & Permissions© 2016MetricsAuthor Information Tomohiro Matsuo More articles by this author Akihiro Asai More articles by this author Kojiro Ohba More articles by this author Yasuyoshi Miyata More articles by this author Hideki Sakai More articles by this author Expand All Advertisement Advertisement PDF downloadLoading ...