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Results 101 - 150 of 1915
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Arnolds Michiel - - 2009
PURPOSE OF REVIEW: To provide evidence of promising tests to noninvasively diagnose bladder outlet obstruction (BOO) in men with benign prostatic hyperplasia. RECENT FINDINGS: Pressure-flow studies are usually performed to prove BOO prior to prostatectomy. However, pressure-flow studies are invasive, expensive, time consuming, and potentially harmful to the patient due ...
Tanaka Yoshinori - - 2009
PURPOSE: In women who reported a weak urinary stream, the efficacy of treatment chosen according to the urodynamic findings on pressure-flow study was prospectively evaluated. MATERIALS AND METHODS: Twelve female patients with maximum flow rates of 10 mL/sec or lower were analyzed in the present study. At baseline, all underwent ...
Ronchi Piero - - 2009
AIMS: To describe the changes in urodynamic parameters and to assess patients' perceptions of voiding difficulties and improvements in symptom bother after solifenacin treatment in men with overactive bladder (OAB) and detrusor underactivity (DUA). METHODS: In this prospective study, 49 neurologically intact men were enrolled. DUA was defined as a ...
Ibis Cem - - 2009
AIM: To find out the potential benefit of bladder pressure (BP) measurement as a diagnostic tool for acute abdomen. BACKGROUND: Acute abdomen is one of the most important clinical entities among general surgical clinics. The diagnosis can be achieved by considering the patient's history, physical examination, laboratory analysis or by ...
Crivellaro S - - 2009
INTRODUCTION: We compared the functional and anatomical differences among three different orthotopic neobladders, utilizing video urodynamics and 3D CT to determine what parameters, if any, correlate to function. MATERIALS AND METHODS: Thirty-four patients were able to participate in the evaluation of their neobladder by 3D CT and video urodynamics. Three ...
Lowenstein Lior - - 2009
AIMS: To describe the temporal relationship between increases in lower urinary tract (LUT) sensation and changes in detrusor and/or urethral pressures measured in real time. METHODS: We reviewed 33 multichannel urodynamic tracings that included a continuous recording of LUT sensation and that demonstrated detrusor overactivity incontinence (DOI) or detrusor overactivity ...
Jiang Chong-He - - 2009
AIMS: To determine whether C afferents can modify the gating of the Adelta micturition reflex in order to identify the neuronal site of interaction of the two afferent systems. METHODS: Adult female cats, anaesthetized with alpha-chloralose, had their bladder and urethra catherized through a slit in the proximal urethra. Micturition ...
Griffiths C J - - 2009
This article defines the need for objective measurements to help diagnose the cause of lower urinary tract symptoms (LUTS). It describes the conventional techniques available, mainly invasive, and then summarizes the emerging range of non-invasive measurement techniques. This is a narrative review derived form the clinical and scientific knowledge of ...
van Mastrigt R - - 2009
A non-invasive method to measure the bladder pressure in males using a condom catheter has been developed. The measurement technique, its validation and limitations, a diagnostic nomogram to non-invasively diagnose bladder outlet obstruction (BOO), and results of large-scale application are discussed. Modified incontinence condoms are attached to the penis. During ...
Walter James S - - 2009
Better methods are needed for recording urethral function for complex urologic problems involving the bladder, urethra, and pelvic floor. To evaluate a balloon catheter for recording urethral pressure and function using bench-top testing and evaluation in an animal model. Balloon pressure-recording methods included slightly inflating the balloon with water and ...
Reis Leonardo O - - 2009
Objectives. Using a urethral device at the fossa navicularis, bladder pressure during voiding can be estimated by a minimal invasive technique. This study purposes a new diagnostic index for patients with lower urinary tract symptoms (LUTSs). Methods. Fifty one patients presenting with LUTSs were submitted to a conventional urodynamic and ...
Wyndaele J J - - 2009
Investigational technique evaluation. To evaluate the clinical value and limitations of one-channel cystometry as a method for urodynamic testing in patients with spinal cord lesion (SCL). Spinal Cord Injury Centers Asia. Protocol, equipment and practical performance of the one-channel cystometry as used in Ho Chi Minh City and Chiang Mai ...
Aoba Takeshi - - 2008
INTRODUCTION: We have previously shown that a vesico-amniotic shunt (V-A shunt) produces fibrotic bladders with poor compliance in normal fetal lambs. We hypothesized that using a ventriculo-peritoneal shunt (V-P shunt) as a V-A shunt in normal bladders may preserve the filling/emptying cycle and normal bladder development. MATERIALS AND METHODS: The ...
Abdulkadir Adekunle Yisau - - 2009
BACKGROUND: Radiological imaging is paramount for defining the genitourinary fistulae commonly associated with anorectal malformations prior to definitive surgery. The imaging options are resource-limited in many parts of the world. Nonfluoroscopic pressure colostography after colostomy is a cheap method for the evaluation of anorectal malformations. OBJECTIVE: To describe our experience ...
Cucchi Antonio - - 2009
PURPOSE: We sought a sufficiently comprehensive urodynamic definition of idiopathic detrusor underactivity in men with nonneurological conditions and no obstruction who had mainly voiding lower urinary tract symptoms. MATERIALS AND METHODS: In 75 such patients and 40 age matched controls we retrospectively analyzed intrinsic detrusor contraction strength and contraction speed ...
Keshtkar A - - 2008
There are a number of studies using electrical impedance spectroscopy, a minimally invasive technique, as a tissue characterizing method with different probe sizes (usually with larger probe diameters than that used in this work). In urinary bladder studies the probe size are limited to 2 mm diameter, in order to ...
De Stefani S - - 2008
INTRODUCTION: Bladder catheterization is a common practice after several surgical procedures; a wrong trans-urethral catheter position can affect the outcomes of some urological maneuvers. We assess with a physical model the variation of intra-vesical pressures due to different locations of the catheter. MATERIALS AND METHODS: Using a plastic bag fulfilled ...
Mirabile Gabriella - - 2008
PURPOSE: Proximal stone migration during ureteroscopic procedures increases operative time and risk. This study was designed to evaluate the ability of a new temperature-sensitive polymer to prevent proximal stone migration during ureteroscopic procedures. MATERIALS AND METHODS: Porcine urinary systems were harvested en bloc. The volume of gel needed to occlude ...
Chen Sung-Lang SL Department of Urology, Chung Shan Medical University Hospital, Taichung City, - - 2008
To evaluate the effect of a single cystoscopic injection of botulinum toxin to the external urethral sphincter in treating detrusor external sphincter dyssynergia. An open treatment trial with pre- and post-treatment evaluations. A total of 20 suprasacral spinal cord injured patients with pure detrusor external sphincter dyssynergia. A single dose ...
Lemack Gary E - - 2008
PURPOSE: Urodynamic studies have been proposed as a means of identifying patients at risk for voiding dysfunction after surgery for stress urinary incontinence. We determined if preoperative urodynamic findings predict postoperative voiding dysfunction after pubovaginal sling or Burch colposuspension. MATERIALS AND METHODS: Data were analyzed from preoperative, standardized urodynamic studies ...
Karnak Ibrahim - - 2008
BACKGROUND/PURPOSE: Increased intraabdominal pressure (IAP) causes impairment of urine flow by compressing the urine-transporting structures and leads to development of various types of anatomical and functional abnormalities in the urinary system. An intrauterine experiment was conducted to determine the relationship between IAP and intraamniotic pressure (IAMNP) and the effects of ...
Cheatham Michael L - - 2008
Intra-abdominal pressure measurement is essential to the diagnosis of patients with intraabdominal hypertension or abdominal compartment syndrome. The most common method for measuring intra-abdominal pressure (IAP) is the intravesicular or "bladder" technique, which requires electronic monitoring technology not available on the typical surgical ward. Herein we describe and validate a ...
Huang Yu-Hui - - 2008
OBJECTIVE: To evaluate the urodynamic responses to anal stretch in patients with detrusor sphincter dyssynergia (DSD). DESIGN: Descriptive study. SETTING: Rehabilitation hospital affiliated with a medical university. PARTICIPANTS: Patients (N=36) with suprasacral spinal cord injury who had DSD confirmed on cystometrography. INTERVENTIONS: Not applicable. MAIN OUTCOME MEASURES: Detrusor pressure, urethral ...
Karazindiyano─člu Sinan - - 2008
OBJECTIVE: To prospectively investigate the effect of testosterone therapy on lower urinary tract symptoms (LUTS)/bladder and sexual functions in men with symptomatic late-onset hypogonadism (SLOH). METHODS: The study included 25 men (age range 38 to 73 years) presented with sexual dysfunction, having SLOH, at a single university hospital. All men ...
Opisso E - - 2008
PURPOSE: We investigated whether patients with neurogenic detrusor overactivity can sense the onset of bladder contraction and in turn suppress the contraction by electrical stimulation of the dorsal penile-clitoral nerve. MATERIALS AND METHODS: A total of 67 patients with different neurological disorders were recruited to undergo 3 filling cystometries. The ...
Beltrán M A - - 2008
BACKGROUND: Intestinal obstruction (IO) leads to increased intra-abdominal pressure and abdominal compartment syndrome. The purpose of this study was to investigate the characteristics of abdominal compartment syndrome in patients with IO secondary to strangulated hernia. METHODS: We studied 81 consecutive unselected patients presenting complicated hernias and IO. We measured intra-abdominal ...
Zehnder Pascal - - 2008
PURPOSE: We determined and compared urethral pressure measurements using air charged and microtip catheters in a prospective, single-blind, randomized trial. MATERIALS AND METHODS: A consecutive series of 64 women referred for urodynamic investigation underwent sequential urethral pressure measurements using an air charged and a microtip catheter in randomized order. Patients ...
Lee Sang Don - - 2008
OBJECTIVE: We studied the effect of increased hydrostatic pressure on muscarinic (M) receptor expression in isolated human bladder smooth muscle cells (HBSMCs) and in an in vivo model of acute bladder outlet obstruction (BOO). We evaluated additionally whether acetylcholine functions as BSMCs mitogen. METHODS: HBSMCs were exposed to sustained levels ...
Kuhn Annette - - 2008
For bulking agents used for female stress urinary incontinence, the recommendation for the anatomical placement varies as some injectables are to be placed close to the bladder neck and others midurethrally. Aim of the study was to determine if there are differences concerning the outcome after transurethral collagen injections depending ...
Vidal Maria Gabriela - - 2008
OBJECTIVE: The objective of this study was to determine the epidemiology and outcomes of intra-abdominal hypertension in a heterogeneous intensive care unit population. DESIGN: This was a prospective cohort study. SETTING: This study was conducted at a medical-surgical intensive care unit in a university hospital. PATIENTS: Study patients included all ...
Uluocak Nihat - - 2008
OBJECTIVES: To investigate the effect of certain positions on voiding dynamics in children with non-neurogenic bladder dysfunction. METHODS: A total of 29 patients (10 male, 19 female) with non-neurogenic overactive bladder were enrolled. None of the patients had voiding phase dysfunction. Male patients were told to urinate in three positions ...
Fritel Xavier - - 2008
PURPOSE: We determined whether urinary leakage in some circumstances is associated with intrinsic sphincter deficiency, defined by a low maximum urethral closure pressure of 30 cm H(2)O or less, in women presenting for urinary incontinence. MATERIALS AND METHODS: We retrospective analyzed the records of 100 consecutive women who underwent complete ...
DeLancey John O L JO Department of Obstetrics and Gynecology, Pelvic Floor Research Group, University of Michigan, Ann Arbor, Michigan, USA. - - 2008
Treatment strategies for stress incontinence are based on the concept that urethral mobility is the predominant causal factor with sphincter function a secondary contributor. To our knowledge the relative importance of these 2 factors has not been assessed in properly controlled studies. The Research on Stress Incontinence Etiology project is ...
Hijaz Adonis A Department of Urology, Case Western Reserve University, Cleveland, Ohio, - - 2008
Urinary incontinence affects 40% of women in the United States and stress urinary incontinence accounts for a large portion of affected patients. As defined by the International Continence Society, stress urinary incontinence is the involuntary leakage of urine upon effort, exertion, sneezing or coughing. Since the ultimate success of long-term ...
Liu Ji-Bin - - 2008
To prospectively evaluate in a canine model contrast material-enhanced ultrasonography (US) for guiding and monitoring radiofrequency (RF) ablation of the entire prostate, with urethral and vascular cooling to protect the surrounding structures. After approval by the institutional animal use and care committee, an RF electrode was used to ablate the ...
Lovasz Sandor - - 2008
OBJECTIVES: To define an exact pressure-flow correlation in the upper urinary tract using an improved measurement method, to quantitatively characterize the degree of postrenal obstruction and to find a simple way of calculating it in everyday urological practice. METHODS: The data of 112 cases were included in the analysis. The ...
Whiteside James L - - 2008
OBJECTIVE: To determine if pelvic organ prolapse reduction decreases cystometric leak point pressure. STUDY DESIGN: A retrospective review was performed of women with pelvic organ prolapse points Aa, Ba or C > or = -1 cm that leaked with and without vaginal support (barrier testing) during multichannel urodynamic investigation (N=44). ...
Hodges Steve J - - 2008
Previous study has shown that the absence of uroplakin II can cause urinary tract dysfunction, including vesicoureteral reflux and renal abnormalities, as well as micturition pattern changes. We developed a simple surrogate measure of bladder function using ultraviolet visualization of urinary voiding patterns in a uroplakin II knockout mouse animal ...
Shishido Keiichi - - 2008
PURPOSE: We characterized the vaginal pressure profile as a representation of closure forces along the length and circumference of the vaginal wall. Vaginal pressure profile data were used to test the hypothesis that the strength of pelvic floor muscle contractions differs significantly between continent women and women with stress urinary ...
Wallis M Chad - - 2008
We have devised a bioreactor to simulate normal urinary bladder dynamics. The design permits a cell-seeded scaffold made from a modified porcine acellular matrix to be placed between 2 closed chambers filled with culture medium and be mechanically stimulated in a physiologically relevant manner. Specifically designed software increased hydrostatic pressure ...
McBeth P B - - 2008
INTRODUCTION: Intra-abdominal pressure (IAP) is increasingly being considered as an important physiologic parameter to be measured in critically ill patients. Traditional methods of monitoring IAP rely on intermittent IAP (IIAP) measurements using indwelling bladder catheters. Recently, a method of continuous IAP (CIAP) monitoring has been developed using a three-way bladder ...
Ibrahim, A I; ;
Objectives: 1. To study the feasibility and safety of localization of radiolucent urinary stones during ESWL utilising the refluxing intravesically injected contrast medium along indwelling ureteral stents. 2. To identify the optimum volume of contrast medium and the intravesical pressure at which adequate vesicoureteral reflux sufficient for collecting system opacification ...
Rahmanou Philip - - 2008
Urodynamic studies which included cough leak point pressure (CLPP) and pressure flow studies were performed at two visits 2 weeks apart. Reproducibility between the two visits and also between the two diagnostic groups, urodynamic stress incontinence (USI) and urodynamic mixed incontinence (UMI) were analysed. Thirty-one women completed both visits, of ...
Whitson Jared M - - 2008
PURPOSE: Controversy exists regarding continence mechanisms in patients who undergo posterior urethral reconstruction after pelvic fracture. Some evidence suggests that continence after posterior urethroplasty is maintained by the bladder neck or proximal urethral mechanism without a functioning distal mechanism. We studied distal urethral sphincter activity in patients who have undergone ...
Apostolidis A - - 2008
The use of Botulinum neurotoxin type A (BoNT/A) in the lower urinary tract was pioneered as early as 20 years ago with injections into the urethral sphincter reducing bladder voiding pressures, urethral pressures, and post-void residual urine. Over the past 9 years, the use of BoNT/A has revolutionised the treatment ...
Souza Ana Beatriz Gomes de - - 2008
PURPOSE: Urodynamic studies in small animals can be performed through urethral sounding or cystostomy. OBJECTIVE: To compare the two methods of urodynamic evaluation in female rats. METHODS: Ten female rats weighing on average 250 g, under anesthesia with urethane (1.25 mg/kg) were submitted in three repeats to an urethal catheter ...
Parsak Cem Kaan - - 2008
BACKGROUND: Abdominal compartment syndrome (ACS) is a difficult entity with two main problems during its course: (1) survival of the patient during the early period and (2) closure of the open wounds during the late period. In this study we evaluated the decision to decompress according to the level of ...
Addington W Robert - - 2008
ABSTRACT: BACKGROUND: Involuntary coughing such as that evoked from the larynx, the laryngeal cough reflex (LCR), triggers a coordinated contraction of the thoracic, abdominal and pelvic muscles, which increases intra-abdominal pressure (IAP), displaces the diaphragm upwards and generates the expiratory force for cough and airway clearance. Changes in the IAP ...
Klarskov Niels - - 2008
AIMS: Urethral pressure reflectometry (UPR) is a novel reliable method for simultaneous measurement of pressure and cross-sectional area in the female urethra. The aim of this study was to report values for UPR parameters in healthy and stress urinary incontinent (SUI) women and compare UPR with urethral pressure profilometry (UPP) ...
Marti Florian - - 2008
A simulation system that generates dynamic bladder pressures for the use of testing and examining artificial urinary sphincters is designed, implemented, and compared to in-vivo measurements of Valsalva and coughing profiles. Cylinder and piston, which are integrated into the universal testing machine, simulating the bladder are connected with explanted sow ...
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