Evidence map›Paper›PMID 32926566›Full record

SynthesisBJOG : an international journal of obstetrics and gynaecology2021

Cranial findings detected by second-trimester ultrasound in fetuses with myelomeningocele: a systematic review.

Y Kunpalin, J Richter, N Mufti, J Bosteels, S Ourselin, P De Coppi, D Thompson, A L David, J Deprest

Open access · hybridAbstract readSystematic Review
In one paragraph

Synthesis in BJOG : an international journal of obstetrics and gynaecology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed, 2 pooled it
3.1field-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

15 citing papers in PubMed, 2 syntheses or guidelines pooled it, 28 citations in OpenAlex.

  1. Fetal myelomeningocele repair after the MOMS trial: a systematic review of neurosurgical outcomes and evolving techniques.Child's nervous system : ChNS : official journal of the International Society for Pediatric Neurosurgery · 2025
    Pooled it
  2. Pooled it
  3. Observational
  4. Interhemispheric fissure distortion in fetal open spina bifida: an under-recognized prenatal ultrasound finding.Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology · 2026
    Article
  5. Review
  6. Prevalence of epilepsy and structural brain anomalies in spina bifida aperta.Child's nervous system : ChNS : official journal of the International Society for Pediatric Neurosurgery · 2026
    Article
  7. Article
  8. Article
  9. Review
  10. Article
  11. Assessment of longitudinal brain development using super-resolution magnetic resonance imaging following fetal surgery for open spina bifida.Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology · 2023
    Article
  12. Review
  13. Article
  14. Antenatal imaging: A pictorial review.World journal of clinical cases · 2022
    Review
  15. Review
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

9 authors at 4 institutions in 2 countries.

Y KunpalinElizabeth Garrett Anderson Institute for Women's Health, University College London, London, UK.ORCID 0000-0002-7388-1414
J RichterDepartment of Development and Regeneration, Biomedical Sciences, KU Leuven, Leuven, Belgium.
N MuftiElizabeth Garrett Anderson Institute for Women's Health, University College London, London, UK.ORCID 0000-0001-9839-8085
J BosteelsDepartment of Development and Regeneration, Biomedical Sciences, KU Leuven, Leuven, Belgium.
S OurselinSchool of Biomedical Engineering & imaging Sciences, King's College London, London, UK.
P De CoppiDepartment of Development and Regeneration, Biomedical Sciences, KU Leuven, Leuven, Belgium.
D ThompsonDepartment of Paediatric Neurosurgery, Great Ormond Street Institute of Child Health, University College London, London, UK.
A L DavidElizabeth Garrett Anderson Institute for Women's Health, University College London, London, UK.ORCID 0000-0002-0199-6140
J DeprestElizabeth Garrett Anderson Institute for Women's Health, University College London, London, UK.ORCID 0000-0002-4920-945X
University College Hospital · GBGreat Ormond Street Hospital · GBKU Leuven · BEKing's College London · GB

Funding

Department of Development and Regeneration, Cluster Woman and ChildEngineering and Physical Sciences Research Council NS/A000027/1Great Ormond Street Hospital for Children's CharityNational Institute for Health Research Great Ormond Street Hospital Biomedical Research CentreNational Institute for Health Research University College London Hospitals Biomedical Research CentreWellcome TrustWellcome Trust WT101957
6 · The paper itself

Abstract

backgroundAbnormal intracranial findings are often detected at mid-trimester ultrasound (US) in fetuses with myelomeningocele (MMC). It is unclear whether these findings constitute a spectrum of the disease or are an independent finding, which should contraindicate fetal surgery.

objectiveTo ascertain the spectrum and frequency of US-detected cranial findings in fetuses with MMC. SEARCH STRATEGY: MEDLINE, Embase, Web of Science and CENTRAL were searched from January 2000 to June 2020. SELECTION CRITERIA: Study reporting incidence of cranial US findings in consecutive cases of second-trimester fetuses with MMC. DATA COLLECTION AND ANALYSIS: Publication quality was assessed by Newcastle-Ottawa Scale (NOS) and modified NOS. Meta-analysis could not be performed as a result of high clinical diversity and study heterogeneity. MAIN

resultsFourteen cranial US findings were reported in 15 studies. Findings in classic Chiari II malformation (CIIM) spectrum included posterior fossa funnelling (96%), small transcerebellar diameter (82-96%), 'banana' sign (50-100%), beaked tectum (65%) and 'lemon' sign (53-100%). Additional cranial findings were small biparietal diameter (BPD) and head circumference (HC) (<5th centile; 53 and 71%, respectively), ventriculomegaly (45-89%), abnormal pointed shape of the occipital horn (77-78%), thinning of the posterior cerebrum, perinodular heterotopia (11%), abnormal gyration (3%), corpus callosum disorders (60%) and midline interhemispheric cyst (42%).

conclusionsWe identified 14 cranial findings by second-trimester US in fetuses with MMC. The relatively high incidence of these findings and their unclear prognostic significance might not contraindicate fetal surgery in the case of normal fetal genetic testing. Some cranial findings may independently affect postnatal outcome, however. Long-term detailed follow-up is required to investigate this. TWEETABLE ABSTRACT: A high rate of cranial abnormalities found on second-trimester ultrasound in fetuses with myelomeningocele.

Indexed as

Ultrasonography, PrenatalFemaleFetal DiseasesHumansMeningomyelocelePregnancyPregnancy Trimester, SecondSkullChiari II malformationfetal surgerymyelomeningoceleprenatalspina bifidaspina bifida apertaspinal dysraphismultrasonography

Identifiers

PMID32926566
PMCPMC8436766
OpenAlexW3085206450

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.