How can we measure bladder volumes in women with advanced pelvic organ prolapse?

Cassadó, Jordi; Espuña‐Pons, Montserrat; Díaz-Cuervo, H.; Rebollo, Pablo

doi:10.1002/uog.14678

Cited by 8 publications

(9 citation statements)

References 9 publications

(17 reference statements)

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“…Dicuio’s formula with PC of 0.52 has been shown to underestimate volumes . This was also shown in our study, where 59% of estimated bladder volumes were less than the catheterised volume.…”

Section: Discussionsupporting

confidence: 87%

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Can we replace the catheter when evaluating urinary residuals?

Araklitis

Paganotto

Hunter

et al. 2019

Neurourology and Urodynamics

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Aims To test the different formulae to calculate the bladder volume using ultrasound; the accuracy of patients hearing/feeling “bubbles” at the end of urodynamics testing as a measure of being empty; and how good we are at estimating PVR using X‐ray at the end of video urodynamics testing. Methods This was a prospective cohort study. Using Sonosite 180 plus, bladder volumes were calculated as, height × width × depth × proportionality constant (0.52, 0.625, 0.65, and 0.7) Patients were asked whether the patient heard or felt “bubbles” at the end of the investigation. Each patient was fluoroscopically screened and the clinician estimated the volume and compared with single‐use catheter volume. Results A total of 85 patients were assessed. All four formulae were significantly correlated. The PC, 0.52, correlated best (r = 0.938, P < 0.001) with no significant difference with the actual volumes ( P = 0.275). The “bubbles test” had a positive predictive value of 93%. A video postvoid residual (PVR) estimation significantly correlated with catheterised bladder volume ( r = 0.842, P < 0.001). There was no significant difference between the estimated and actual bladder volumes ( P = 0.579). Conclusion This study showed that although all four formulae correlated significantly, the PC of 0.52 was the only formula without a significant difference from the actual volume. More work is needed to produce patient individualised PC. Our clinicians were able to accurately estimate the PVR on X‐ray. This study has identified the best formula to accurately estimate bladder volume and that video estimation along with the “bubbles” test can avoid unnecessary intervention.

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Section: Discussionsupporting

confidence: 87%

“…Errors in calculating bladder volume can be as high as 25% . 2D scans may be inaccurate because the bladder can have an irregular shape .…”

Section: Introductionmentioning

confidence: 99%

Can we replace the catheter when evaluating urinary residuals?

Araklitis

Paganotto

Hunter

et al. 2019

Neurourology and Urodynamics

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“…In the past years, many experiences on the application and utility of TL‐US in different fields of obstetrics and gynecology were published, such as intrapartum evaluations, quantification of PVR, and grade of uterine descent 26–29 . Recently, Illiano et al 30 reported results of the dynamic TL‐US evaluation performed at follow‐up after TOT procedure in order to recognize possible associated factors with failed surgery.…”

Section: Discussionmentioning

confidence: 99%

“…In the past years, many experiences on the application and utility of TL-US in different fields of obstetrics and gynecology were published, such as intrapartum evaluations, quantification of PVR, and grade of uterine descent. [26][27][28][29] Recently, Illiano et al 30 compared with continent women had the sling in a proximal or distal position, which moved discordantly with the urethra (p < 0.0001), with asymmetry arm and bladder neck funneling (P < 0.0001). 30…”

Section: Comparisons With Other Studiesmentioning

confidence: 99%

Translabial ultrasound evaluation after tension‐free transobturator tape technique: Outcomes based on the tape's position

Gugliotta

Schiattarella

Giunta

et al. 2022

Intl J Gynecology & Obste

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Stress urinary incontinence (SUI) is defined as the involuntary loss of urine upon effort or physical exertion including sporting activities, or sneezing or coughing 1 ; moreover, it is characterized by a significant negative impact on an individual's quality of life. Depending on the patient's age, its estimated prevalence ranges from 29% to 75%, with a mean of 48%. 2-4 Among the proposed surgical options for treating SUI, midurethral slings are widely defined as one of the most effective and safe surgical procedures compared with other techniques. 5

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“…For example, post-void residual (PVR) volume is utilized in the diagnosis of urinary retention, detrusor underactivity, and other bladder impairments [ 1-4 ]. In addition, measurements of both voided volume and PVR are needed for bladder training and other bladder assessments [ 5 , 6 ]. During urodynamics (UD), bladder volume during filling is assumed to be equal to the infused volume and does not typically include an estimation of urinary diuresis.…”

Section: Introductionmentioning

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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How can we measure bladder volumes in women with advanced pelvic organ prolapse?

Cited by 8 publications

References 9 publications

Can we replace the catheter when evaluating urinary residuals?

Can we replace the catheter when evaluating urinary residuals?

Translabial ultrasound evaluation after tension‐free transobturator tape technique: Outcomes based on the tape's position

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

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