Evidence map›Paper›PMID 26700104›Full record

ArticleInternational urogynecology journal2016

What is normal bladder neck anatomy?

Cristina Naranjo-Ortiz, Ka Lai Shek, Andrew James Martin, Hans Peter Dietz

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Article in International urogynecology journal, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
3.5field-weighted citation impact, top 8% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

21 citing papers in PubMed, 58 citations in OpenAlex.

  1. Review
  2. A Multimodal Ultrasound Approach Combining Transperineal and Transrectal Shear Wave Elastography for Early Prediction of Stress Urinary Incontinence in Women.Journal of ultrasound in medicine : official journal of the American Institute of Ultrasound in Medicine · 2026
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  10. Visualized Urethral Mobility Profile During Urine Leakage in Supine and Standing Positions.Ultraschall in der Medizin (Stuttgart, Germany : 1980) · 2023
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

4 authors at 2 institutions in 1 country.

Cristina Naranjo-OrtizSydney Medical School Nepean, University of Sydney, Sydney, NSW, Australia. c_naranjoortiz@outlook.com.
Ka Lai ShekSydney Medical School Nepean, University of Sydney, Sydney, NSW, Australia.
Andrew James MartinNHMRC Clinical Trials Centre, University of Sydney, Sydney, Australia.
Hans Peter DietzSydney Medical School Nepean, University of Sydney, Sydney, NSW, Australia.
University of Sydney · AUNational Health and Medical Research Council · AU

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introduction and hypothesisFunctional anatomy of the bladder neck and proximal urethra has been studied extensively because of the belief that it is important for urinary continence. The aim of this study was to explore the limits of normality for pelvic floor ultrasound parameters of bladder neck and urethral mobility associated with stress urinary incontinence (SUI) and urodynamic stress incontinence (USI).

methodsA retrospective study was conducted on 589 women seen for urodynamic testing in a tertiary urogynaecology clinic. All women were assessed following a protocol including interview, clinical examination, flowmetry, urodynamic testing and 4D pelvic floor ultrasound. Volume data sets were analysed offline to assess for bladder neck descent (BND), urethral rotation and the retrovesical angle (RVA) on maximal Valsalva.

resultsAfter excluding women with previous incontinence or prolapse surgery, 429 datasets were available. SI was significantly associated with the RVA (p = 0.033) and BND (p = 0.036); USI was associated with urethral rotation (p = 0.021) and BND (p < 0.001). On multivariate logistic regression analysis, controlling for confounders including age, BMI, parity, previous hysterectomy and maximal urethral pressure, the association between SUI and BND remained significant (OR [per 10 mm] = 1.23; 95 % CI: 1.01 to 1.51; p = 0.043), as did the association between USI and BND (OR [per 10 mm] = 1.58; 95 % CI: 1.3 to 1.91; p < 0.001). ROC statistics for BND suggested a cut-off of 25 mm in describing the limit of normality.

conclusionsMeasures of functional bladder neck anatomy are weakly associated with SUI and USI (with association between BND and USI being the strongest). It is suggested that a BND of 25 mm or higher be defined as abnormal ("hypermobile") on the basis of its association with USI.

Indexed as

AdolescentAdultAgedAged, 80 and overFemaleHumansMiddle AgedRetrospective StudiesUltrasonographyUrethraUrinary BladderUrinary Incontinence, StressYoung AdultBladder neck descentFunctional anatomyStress incontinenceUrethral mobilityUrinary incontinenceUrodynamic stress incontinence

Identifiers

PMID26700104
OpenAlexW2233045739

What OpenQuestion holds

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Read underepoch 390

Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.