The accuracy of post-void residual measurement in women

Haylen, Bernard T.; Lee, Joseph

doi:10.1007/s00192-008-0568-0

Cited by 25 publications

(14 citation statements)

References 24 publications

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“…This accuracy compares favourably with the ± 20-25% for the most accurate ultrasonic techniques for PVR measurement with the potential error using urethral catheterisation being much higher [13]. Unlike PVR measurement, therefore, accuracy for uroflowmetry, subject to appropriate regular uroflowmeter calibration, should not be an issue.…”

Section: Introductionmentioning

confidence: 67%

Uroflowmetry: its current clinical utility for women

2008

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Uroflowmetry, the simple, non-invasive measurement of urine flow over time during micturition, has a long and interesting history, clear definitions, a clear purpose in screening for voiding difficulty and, most importantly, technical accuracy. Data interpretation is currently limiting its clinical utility, despite appropriate analysis being available in long-standing existing research. The main clinically important numerical parameters are the maximum and average urine flow rates and the voided volume. Urine flow rates are strongly dependent on voided volume. Reference to established (Liverpool) nomograms will most accurately correct for this dependency. Nomograms will also optimise the validation of uroflowmetry data and the accurate assessment of its normality, compared with fixed urine flow rates and "cutoffs" for voided volume. Abnormally slow urine flow (under the 10th centile Liverpool Nomograms) is the most clinically significant abnormality. Repeat uroflowmetry, concomitant post-void residual measurement and voiding cystometry studies are appropriate options for evaluating any abnormal uroflowmetry.

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Section: Introductionmentioning

confidence: 67%

Uroflowmetry: its current clinical utility for women

2008

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“…An alternative to using conventional ultrasound would be to use an automatic portable device such as the BladderScan ® [ 4 , 31-33 ]. These devices have the advantages of being very simple and quick to use.…”

Section: Discussionmentioning

confidence: 99%

Comparison of 2D and 3D ultrasound methods to measure serial bladder volumes during filling: Steps toward development of non-invasive ultrasound urodynamics

Nagle

Bernardo

Varghese

et al. 2018

Bladder

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Objectives: Non-invasive methods to objectively characterize overactive bladder (OAB) and other forms of voiding dysfunction using real-time ultrasound are currently under development but require accurate and precise serial measurements of bladder volumes during filling. This study’s objective was to determine the most accurate and precise ultrasound-based method of quantifying serial bladder volumes during urodynamics (UD).Methods: Twelve female participants with OAB completed an extended UD procedure with the addition of serial bladder ultrasound images captured once per minute. Bladder volume was measured using three ultrasound methods: (1) Vspheroid: two-dimensional (2D) method calculated assuming spheroid geometry; (2) Vbih: 2D correction method obtained by multiplying Vspheroid by a previously derived correction factor of 1.375; and (3) V3D: three-dimensional (3D) method obtained by manually tracing the bladder outline in six planes automatically reconstructed into a solid rendered volume. These volumes were compared to a control (Vcontrol) obtained by adding UD infused volume and the volume of estimated urine production.Results: Based on linear regression analysis, both Vbih and V3D were fairly accurate estimators of Vcontrol, but V3D was more precise. Vspheroid significantly underestimated Vcontrol.Conclusions: Although the Vbih and V3D methods were more accurate than the more-commonly used Vspheroid method for measuring bladder volumes during UD, the V3D method was the most precise and could best account for non-uniform bladder geometries. Therefore, the V3D method may represent the best tool required for the continued development of non-invasive methods to diagnose OAB and other forms of voiding dysfunction.

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“…Focusing on ultrasonographic parameters, the preoperative residual volume was easy to assess using standard ultrasound measures [20] [21]. In a review about ultrasonographic measurement of residual volume, Haylen considers it as a good tool for assessing bladder-emptying function [22].…”

Section: Discussionmentioning

confidence: 99%

Can We Predict De Novo Urge Incontinence by Perineal Ultrasound?

Lleberia¹,

Pubill²,

Mestre³

et al. 2018

OJOG

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Introduction: Urinary incontinence affects over 200 million people worldwide [1]. Tension free vaginal tape is the standard surgical treatment for stress urinary incontinence. De novo urge urinary incontinence is a long-term complication of this treatment with a significant impact in the quality of life of these patients. Objective: The major aim of this study is to assess the correlation between perineal ultrasonography findings and the incidence of de novo urge urinary incontinence. Material and Methods: A prospective observational study was designed. Patients with stress urinary incontinence diagnosed by clinical and urodynamic findings submitted to a tension-free vaginal tape surgery were included. International Consultation on Incontinence Questionnaire-Short Form (ICIQ-SF) and introital perineal ultrasound were performed before surgical intervention (I-STOP©). Clinical and ultrasound re-evaluation were executed six months after surgery. Stress urinary incontinence was defined according to the ICS-IUGA. Data were recorded using a Microsoft Access database and statistical analysis using SAS©. Results: Bladder thickness equal to or below 6 mm has a low positive predictive value (PPV, 0.55), but a negative predictive power (NPP) of 0.72. Following surgery, a slight increase in postvoid residue is observed. Considering demographic data, an increase of 5 points in body mass index (BMI) resulted in an odds ratio (OR) of 1.74 of presenting de novo urge urinary in continence. Conclusions: In patients submitted to a tension-free vaginal tape surgery, high BMI seems to be associated with a higher rate of de novo urge urinary incontinence. Preoperative bladder wall thickness below 6 mm seems predict absence of this complication.

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The accuracy of post-void residual measurement in women

Cited by 25 publications

References 24 publications

Uroflowmetry: its current clinical utility for women

Uroflowmetry: its current clinical utility for women

Comparison of 2D and 3D ultrasound methods to measure serial bladder volumes during filling: Steps toward development of non-invasive ultrasound urodynamics

Can We Predict De Novo Urge Incontinence by Perineal Ultrasound?

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