Evidence map›Paper›PMID 36995462›Full record

SynthesisPediatric nephrology (Berlin, Germany)2023

Non-surgical management in children with non-refluxing primary megaureter: a systematic review and meta-analysis.

Kathrin Buder, Kathrin Opherk, Sara Mazzi, Katharina Rohner, Marcus Weitz

Open access · hybridAbstract readMeta-AnalysisSystematic Review
In one paragraph

Synthesis in Pediatric nephrology (Berlin, Germany), 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
5.2field-weighted citation impact, top 5% 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

5 citing papers in PubMed, 9 citations in OpenAlex.

  1. Giant megaureter presenting as femoral hernia: case report.International journal of surgery case reports · 2026
    Article
  2. Article
  3. Article
  4. Article
  5. Primary Nonrefluxing Megaureter: Does Ureter Diameter Really Matter?Journal of Indian Association of Pediatric Surgeons
    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

5 authors at 2 institutions in 2 countries.

Kathrin BuderDepartment of General Pediatrics and Hematology/Oncology, University Hospital Tübingen, University Children's Hospital, Hoppe-Seyler-Str. 1, D - 72076, Tübingen, Germany. kathrin.buder@med.uni-tuebingen.de.ORCID http://orcid.org/0000-0002-5425-0772
Kathrin OpherkDepartment of General Pediatrics and Hematology/Oncology, University Hospital Tübingen, University Children's Hospital, Hoppe-Seyler-Str. 1, D - 72076, Tübingen, Germany.
Sara MazziPediatric Nephrology Department, University Children's Hospital Zurich, Steinwiesstr. 75, CH - 8032, Zurich, Switzerland.
Katharina RohnerPediatric Nephrology Department, University Children's Hospital Zurich, Steinwiesstr. 75, CH - 8032, Zurich, Switzerland.
Marcus WeitzDepartment of General Pediatrics and Hematology/Oncology, University Hospital Tübingen, University Children's Hospital, Hoppe-Seyler-Str. 1, D - 72076, Tübingen, Germany.
University Children's Hospital Tübingen · DEUniversity Children's Hospital Zurich · CH

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundChildren with non-refluxing primary megaureter are mostly managed by a watchful approach with close follow-up and serial imaging.

objectivesThis systematic review and meta-analysis aimed to determine whether there is sufficient evidence to support the current non-surgical management strategy in these patients. DATA SOURCES: A comprehensive search including electronic literature databases, clinical trial registries, and conference proceedings was performed. DATA SYNTHESIS

methodsOutcomes were estimated as pooled prevalence. If meta-analytical calculations were not appropriate, outcomes were provided in a descriptive manner.

resultsData from 8 studies (290 patients/354 renal units) were included. For the primary outcome, differential renal function estimated by functional imaging, meta-analysis was impossible due to reported data not being precise. Pooled prevalence for secondary surgery was 13% (95% confidence interval: 8-19%) and for resolution 61% (95% confidence interval: 42-78%). The risk of bias was moderate or high in most studies. LIMITATIONS: This analysis was limited by the low number of eligible studies with few participants and high clinical heterogeneity, and the poor quality of the available data.

conclusionsThe low pooled prevalence of secondary surgical intervention and high pooled prevalence of resolution may support the current non-surgical management in children with non-refluxing primary megaureter. However, these results should be interpreted cautiously due to the limited available body of evidence. Future studies should overcome existing limitations of imaging methods by using standardized, comparable criteria and report outcome parameters in a quantitative manner. This would allow more sufficient data synthesis to provide evidence-based recommendations for clinical decision-making and counseling. SYSTEMATIC REVIEW REGISTRATION: The protocol was registered on PROSPERO under CRD42019134502.

Indexed as

KidneyChildHumansKidney Function TestsDifferential renal functionNon-surgical managementPelvicalyceal dilatationPrimary megaureterUretero-vesical junction obstruction

Identifiers

PMID36995462
PMCPMC10514100
OpenAlexW4361281725

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

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.