Urinary bladder residual volume in females

INTRODUCTION: Detrusor contraction in bladder exstrophy (BE) patients following reconstruction is poorly understood as there are few published studies assessing urodynamic findings in this population. Understanding the ability of the detrusor to contract in BE patients early after closure may be able to inform the longer-term management and potential for the development of future continence in this population. OBJECTIVE: We sought to evaluate early detrusor contraction using urodynamic studies (UDS) in children who had previously undergone complete primary repair of bladder exstrophy (CPRE)...

PURPOSE: Urodynamics is the standard method of diagnosing bladder dysfunction, but involves catheters and retrograde bladder filling. With these artificial conditions, urodynamics cannot always reproduce patient complaints. We have developed a wireless, catheter-free intravesical pressure sensor, the UroMonitor, which enables catheter-free telemetric ambulatory bladder monitoring. The purpose of this study was twofold: to evaluate accuracy of UroMonitor pressure data, and assess safety and feasibility of use in humans...

OBJECTIVE: The aim of this study was to analyze the association between lower urinary tract symptoms and polycystic ovary syndrome. METHODS: A total of 180 women were enrolled in this prospective study. Demographic data, body mass index, waist circumference, modified Ferriman-Gallwey scores, biochemical parameters, ultrasonographic findings, and maximum urinary flow rate (Q max) were analyzed. In addition, the Beck Depression Inventory, Beck Anxiety Inventory, and Bristol Female Lower Urinary Tract Symptom Scored Form questionnaires were evaluated for each subject...

INTRODUCTION: Diabetic neurogenic bladder is one of the common complications in patients with diabetic neuropathy. However, studies reporting the prevalence and associated factors of urinary tract infections (UTIs) in patients with diabetic neuropathy are rare. Therefore, the present study aimed to explore the prevalence and influencing factors of UTI in patients with diabetic neuropathy. METHODS: A hospital-based cross-sectional study that recruited patients with diabetic neuropathy was conducted from January 2019 to December 2021...

Lower urinary tract dysfunction (LUTD) is becoming more common in aging societies worldwide. In patients with LUTD, the risk of urinary tract infection (UTI) rises due to several distinct mechanisms, including easy bacterial access to the urinary tract, impaired bacterial washout, and an impaired innate defense system. The pathophysiology of LUTD varies depending on whether it is neurogenic or non-neurogenic, as well as by gender; therefore, the etiology and characteristics of UTI differ according to the type of LUTD...

OBJECTIVES: This study aimed to assess the efficacy and safety of mirabegron compared with vibegron (both 50 mg once daily) in Japanese female patients with symptoms of overactive bladder (OAB). METHODS: This prospective, 12-week, two-arm, parallel-group, open-label randomized trial (UMIN000038288) was conducted at a single clinic from December 2019 to September 2022. The primary efficacy outcome measure was the change in mean total overactive bladder symptom scores (OABSSs) from baseline to end of treatment (EOT) (Week 12)...

AIMS: The Working Group (WG), initiated by the International Continence Society (ICS) Standardisation Steering Committee and supported by the Society of Urodynamics, Female Pelvic Medicine and Urogenital Reconstruction, has revised the ICS Standard for pressure-flow studies of 1997. METHODS: Based on the ICS standard for developing evidence-based standards, the WG developed this new ICS standard in the period from May 2020 to December 2022. A draft was posted on the ICS website in December 2022 to facilitate public discussion and the comments received have been incorporated into this final release...

INTRODUCTION: Elevated post void residual (PVR) is a significant risk factor for urinary tract infections (UTI). It is also a significant predictor of treatment outcomes in cases of vesicoureteral reflux, pediatric enuresis, and non-neurogenic LUT dysfunction. However, the absence of age-specific nomograms for adolescents may limit PVR's use in clinical practice. OBJECTIVE: To establish age- and gender-specific normal PVR urine volume in adolescents. MATERIAL AND METHODS: Healthy adolescents aged 12-18 years were recruited to undergo two uroflowmetry and PVR studies whenever they felt the urge to urinate...

Owing to the diverse treatment outcomes after a botulinum toxin A (BoNT-A) injection to the external sphincter, this study aimed to develop a new technique: an ultrasound-guided BoNT-A external sphincter injection. This single-center prospective cohort study was conducted at a tertiary medical center in Taichung, Taiwan. From December 2020 to September 2022, 12 women were enrolled. The patients were evaluated for lower urinary tract syndrome using patient perception of bladder condition (PPBC), international prostate symptom score (IPSS), uroflowmetry, post-void residual volume (PVR), cystometry, and external sphincter electromyography...

Normal urine residual volume (URV) in dogs has not previously been established by direct measurement. Twenty-two client-owned normal healthy dogs (8 female spayed, 12 male castrated, 2 male intact) without history of urinary abnormalities were included. Dogs were walked outside for 5 min to allow for natural voiding, immediately followed by urinary bladder ultrasound and urinary catheterization. The URV was recorded, and the ultrasound images were used to estimate URV for each dog. There was no significant difference between male and female URV; therefore, all data were pooled...

Background and objective The first-line surgical treatment for female stress urinary incontinence (SUI) involves midurethral slings (MUS), including the transobturator tape (TOT) and the retropubic tension-free vaginal tape (TVT). However, whether offering these procedures to older and comorbid women could lead to increased complications is a question that needs to be seriously addressed. In this retrospective cohort study, we aimed to compare the two procedures and evaluate the impact of age, BMI, and comorbidities on complications...

AIM: This study evaluated the long-term effectiveness of transurethral incision of the bladder neck (TUI-BN) with or without an additional procedure for female voiding dysfunction. METHODS: Women with voiding difficulty who underwent TUI-BN in the last 12 years were included. All patients underwent a videourodynamics study (VUDS) at baseline and after TUI-BN. A successful outcome was defined as having a voiding efficiency (VE) increase by ≥50% after treatment...

Intravesical botulinum toxin type A (BoNT-A) injection has been recognized as the standard treatment for refractory overactive bladder (OAB). However, its therapeutic efficacy and safety have not been thoroughly reviewed in elderly patients. This study aims to provide treatment outcomes for patients aged ≥75 years, and to identify factors associated with unfavorable outcomes. Patients receiving intradetrusor injections of 100 U onabotulinumtoxinA for refractory OAB between 2011 and 2021 were retrospectively reviewed...

OBJECTIVE: To assess the role of bladder emptying on outcomes of males undergoing transurethral resection of the prostate (TURP). MATERIALS AND METHODS: This prospective study involved candidates for TURP (January 2017-January 2018) with a follow-up of 3 yrs. Preoperative and follow-up evaluation comprised: UF, simple PVR (S-PVR), PVR-Ratio (PVR-R) as the ratio of PVR to bladder volume (BV: voided volume (VV) + PVR), Bladder voiding efficiency (BE) as the ratio between VV and BV -(voided volume/total bladder capacity) X 100 - and the IPSS...

PURPOSE OF REVIEW: Recently, several trials as well as registry-data analyses investigating the role of robot-assisted radical cystectomy with extra or intracorporal urinary diversion were completed and follow up matured. This review aims to comment on the current evidence-based findings and interpret the future role of the robotic approach as a part of the treatment of bladder cancer. RECENT FINDINGS: Numerous trials and registry-data analyses revealed no significant differences in progression-free and overall survival after open radical cystectomy or robot-assisted radical cystectomy irrespective of urinary diversion...

OBJECTIVE: To evaluate perioperative outcomes related to sexual and urinary function in patients who underwent a holmium laser enucleation of the prostate (HoLEP) with selective laser enucleation of the median lobe. MATERIALS AND METHODS: We retrospectively reviewed the first 450 HoLEP cases by a single surgeon from April 2019 to March 2022. Fifty-five patients with intravesical-prostatic protrusion or high bladder neck without obstructing lateral lobes underwent selective enucleation of the median lobe of the prostate...

OBJECTIVE: To create a reference curve for postvoid residual volume (PVRV) in asymptomatic postpartum women who are at low risk of developing postpartum urinary retention (PUR), a well-known complication in the immediate postpartum period. METHODS: This is a prospective observational study measuring PVRV after uncomplicated vaginal delivery. PVRV was assessed by transabdominal ultrasound using a portable ultrasound scanner within the first 26 h after delivery (PVRV 1) and on the day of discharge (day 2 or 3 postpartum) (PVRV 2)...

IMPORTANCE: OnabotulinumtoxinA (BTX-A) injection is a third-line therapy for overactive bladder (OAB). Patients undergoing treatment have a 6.5% chance of requiring clean intermittent catheterization (CIC) due to postoperative urinary retention (POUR). OBJECTIVE: The aim of this study was to evaluate risk factors for retention after BTX-A injections for OAB to decrease treatment hesitancy and enhance shared decision-making. STUDY DESIGN: This is a retrospective review of patients who underwent BTX-A injection for OAB at an urban university hospital between November 2015 and January 2021...

INTRODUCTION AND HYPOTHESIS: Urinary incontinence (UI) and overactive bladder (OAB) are common conditions worldwide. These conditions significantly affect the quality of life (QoL) of patients with limited mobility. Total knee arthroplasty (TKA) is one of the most commonly performed orthopedic procedures, resulting in pain relief, as well as improved function and QoL. This study was aimed at evaluating changes in patients' mobility as a result of TKA surgery and the effect of these changes on their OAB and UI symptoms...

INTRODUCTION: Nocturia negatively impacts the quality of life and is associated with poor general health, but our understanding of its etiologies is incomplete. Urodynamic studies (UDS) findings in patients with nocturia are not well described and may help guide management. Our objective was to compare UDS findings with age-matched patients with and without nocturia. MATERIALS AND METHODS: We retrospectively reviewed UDS findings of 1124 patients (2010-2017). A total of 484 (43%) presented with nocturia and 821 (73%) were female...