Evidence map›Paper›PMID 40748526›Full record

Trial reportWorld journal of urology2025

Postoperative urinary stone analysis-influence of the hydrogel retrieval method on stone analysis.

C Jacobs, F I Winterhagen, M Ritter, P Lossin, I Grunwald, J Stein, S Latz

Abstract readRandomized Controlled Trial
PubMed Full text at PMC Publisher
In one paragraph

Trial report in World journal of urology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–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

1 citing paper in PubMed.

  1. Article
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.

C Jacobs *Urinary Stone Analysis Center, Urologie Bonn-Rhein-Sieg, Bonn, Germany.
F I Winterhagen *Department of Urology, University Hospital Bonn, Venusberg Campus 1, 53127, Bonn, Germany. Franziska.Winterhagen@ukbonn.de.
M RitterDepartment of Urology, University Hospital Bonn, Venusberg Campus 1, 53127, Bonn, Germany.
P LossinUrinary Stone Analysis Center, Urologie Bonn-Rhein-Sieg, Bonn, Germany.
I GrunwaldIndustrial and Environmental Biology, Hochschule Bremen-City University of Applied Sciences, Neustadtswall 30, 28199, Bremen, Germany.
J Stein *Department of Urology, University Hospital Bonn, Venusberg Campus 1, 53127, Bonn, Germany.
S Latz *Urinary Stone Analysis Center, Urologie Bonn-Rhein-Sieg, Bonn, Germany.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeStone analysis is crucial in patients with urolithiasis in order to initiate specific metaphylaxis in patients with high risk of recurrence. Hydrogel (mediNik

methodsThis randomized prospective blinded study was based on a total of 78 urinary stone analyses, the composition of which was measured before and after treatment with hydrogel. Samples were washed according to the manufacturer's instructions (group 1), with EDTA only (group 2) or not washed after treatment with hydrogel (group 3). The samples were analyzed using Fourier transform infrared spectroscopy (ATR technique).

resultsIn group 1 (100%, 63) and group 2 (100%, 5), the same urinary stone findings were recorded before and after application of the hydrogel. In group 3, the composition of none of the stones could be determined due to additional bands. DISCUSSION: Postoperative urinary stone analysis using IR spectroscopy is not impaired by the hydrogel if the hydrogel is washed out as recommended by the manufacturer. After regular washing, the stone analysis remains the same in 100% of cases with and without the use of hydrogel.

Indexed as

HydrogelsUrinary CalculiAdultFemaleHumansMaleMiddle AgedPostoperative PeriodProspective StudiesSpectroscopy, Fourier Transform InfraredHydrogelsHydrogelMetaphylaxisStone analysisUrolithiasis

Identifiers

PMID40748526
PMCPMC12316718

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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.