Evidence map›Paper›PMID 34085789›Full record

ArticleInvestigative and clinical urology2021

Post-void residual urine ratio: A novel clinical approach to the post-void residual urine in the assessment of males with lower urinary tract symptoms.

Emanuele Rubilotta, Matteo Balzarro, Nicolò Trabacchin, Rita Righetti, Antonio D'Amico, Jerry G Blaivas, Alessandro Antonelli

Abstract read
In one paragraph

Article in Investigative and clinical urology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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

12 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
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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

7 authors.

Emanuele RubilottaDepartment of Urology, AOUI Verona, Verona, Italy.ORCID 0000-0002-3490-947X
Matteo BalzarroDepartment of Urology, AOUI Verona, Verona, Italy.ORCID 0000-0003-1019-565X
Nicolò TrabacchinDepartment of Urology, AOUI Verona, Verona, Italy. Nicolo.trabacchin@gmail.com.ORCID 0000-0003-3689-1469
Rita RighettiDepartment of Urology, Mater Salutis Hospital AULSS 9 Scaligera, Legnago, Italy.ORCID 0000-0003-3139-3794
Antonio D'AmicoDepartment of Urology, AOUI Verona, Verona, Italy.ORCID 0000-0002-8054-749X
Jerry G BlaivasDepartment of Urology, Icahn School of Medicine at Mount Sinai, New York, NY, USA.ORCID 0000-0003-0410-8476
Alessandro AntonelliDepartment of Urology, AOUI Verona, Verona, Italy.ORCID 0000-0002-9557-3586

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeTo assess the correlation between post-void residual urine ratio (PVR-R) and pathological bladder emptying diagnosed by pressure-flow studies (PFS) in males with lower urinary tract symptoms (LUTS). MATERIALS AND

methodsPVR-R and PVR urine were evaluated in 410 males underwent PFS for LUTS. PVR-R was the percentage of PVR to bladder volume (voided volume+PVR). Schafer and International Continence Society (ICS) nomograms, Bladder Contractility Index (BCI) were used to diagnose bladder outlet obstruction (BOO) and detrusor underactivity (DUA). We subdivided the cohort in 4 groups: Group I, BOO+/DUA+; Group II, BOO-/DUA+; Group III, BOO+/DUA-; Group IV, BOO-/DUA- (control group). We subdivided the 4 groups according to PVR-R strata: (1) 0%-20%; (2) 21%-40%; (3) 41%-60%; (4) 61%-80%; (5) 81%-100%.

resultsGroup I had a greater median PVR-R (50%) with a >40% in 61.4% of the cohort. Median PVR-R was 16.6% in Group II, 24% in Group III, and 0% in the control Group. According to ICS nomograms and BCI, median PVR-R and PVR were significantly higher (p<0.001) in obstructed and underactive males. PVR-R threshold of 20% allowed to recognize males with voiding disorders with high sensibility, specificity, PPV, and NPV. A PVR-R cut-off of 40% identified males with associated BOO and DUA and more severe voiding dysfunction.

conclusionsA higher PVR-R is related to a more severe pathological bladder emptying, and to the association of BOO and DUA. PVR-R may have a clinical role in first assessment of males with LUTS and severe voiding dysfunction.

Indexed as

AdultAgedHumansLower Urinary Tract SymptomsMaleMiddle AgedMuscle, SmoothOrgan SizePredictive Value of TestsUrinary BladderUrinary Bladder Neck ObstructionUrinary RetentionUrinationUrineUrodynamicsBladder outlet obstructionDetrusor underactivityLower urinary tract symptomsMalesUrodynamics

Identifiers

PMID34085789
PMCPMC8246021

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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.