Evidence map›Paper›PMID 32113729›Full record

ArticlePediatric neurology2020

Prevalence and Impact of Underlying Diagnosis and Comorbidities on Chiari 1 Malformation.

Brooke Sadler, Timothy Kuensting, Jennifer Strahle, Tae Sung Park, Matthew Smyth, David D Limbrick, Matthew B Dobbs, Gabe Haller, Christina A Gurnett

Open access · greenAbstract read
In one paragraph

Article in Pediatric neurology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 33 papers.

0numbers the graph read from it
0cells of the map it votes in
33citing papers in PubMed
6.5field-weighted citation impact, top 3% 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

33 citing papers in PubMed, 66 citations in OpenAlex.

  1. Chiari I malformation.Nature reviews. Disease primers · 2026
    Review
  2. Article
  3. Article
  4. Article
  5. Diagnostic utility of additional spine imaging for syrinx detection in the pre-operative assessment of pediatric Chiari malformation type 1.Child's nervous system : ChNS : official journal of the International Society for Pediatric Neurosurgery · 2025
    Article
  6. Posterior fossa decompression in syndromic children with chiari-like posterior fossa crowding: a nationwide US-based study.Child's nervous system : ChNS : official journal of the International Society for Pediatric Neurosurgery · 2025
    Article
  7. Article
  8. Article
  9. Article
  10. Review
  11. A test of the ArchaicEvolution, medicine, and public health · 2025
    Article
  12. Review
  13. Article
  14. Article
  15. The Genetics of Chiari 1 Malformation.Journal of clinical medicine · 2024
    Review
  16. Article
  17. Complication Avoidance in Chiari Malformation Surgery.Advances and technical standards in neurosurgery · 2024
    Review
  18. Article
  19. CMAJ : Canadian Medical Association journal = journal de l'Association medicale canadienne · 2023
    Article
  20. Hiccups due to Chiari type I malformation.CMAJ : Canadian Medical Association journal = journal de l'Association medicale canadienne · 2023
    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

9 authors at 1 institution in 1 country.

Brooke SadlerDepartment of Neurology, Washington University in St. Louis, St Louis, Missouri.
Timothy KuenstingDepartment of Neurology, Washington University in St. Louis, St Louis, Missouri.
Jennifer StrahleDepartment of Neurosurgery, Washington University in St. Louis, St. Louis, Missouri.
Tae Sung ParkDepartment of Neurosurgery, Washington University in St. Louis, St. Louis, Missouri.
Matthew SmythDepartment of Neurosurgery, Washington University in St. Louis, St. Louis, Missouri.
David D LimbrickDepartment of Neurosurgery, Washington University in St. Louis, St. Louis, Missouri.
Matthew B DobbsDepartment of Orthopedic Surgery, Washington University in St. Louis, St. Louis, Missouri.
Gabe HallerDepartment of Neurosurgery, Washington University in St. Louis, St. Louis, Missouri.
Christina A GurnettDepartment of Neurology, Washington University in St. Louis, St Louis, Missouri. Electronic address: gurnettc@wustl.edu.
Washington University in St. Louis · US

Funding

WU INSTITUTE OF CLINICAL AND TRANSLATIONAL SCIENCESUL1TR002345 · NCATS · WASHINGTON UNIVERSITY · PI William G. Powderly · 2017 to 2026
$97.8M
Washington University Institute of Clinical and Translational SciencesUL1TR000448 · NCATS · WASHINGTON UNIVERSITY · PI EVANOFF, BRADLEY A · 2012 to 2016
$41.4M
Washington University Intellectual and Developmental Disabilities Research Center-Administrative Down Syndrome SupplementU54HD087011 · NICHD · WASHINGTON UNIVERSITY · PI CONSTANTINO, JOHN N. · 2015 to 2019
$7.1M
Genetic Risk Factors for Severe ScoliosisR01AR067715 · NIAMS · WASHINGTON UNIVERSITY · PI DOBBS, MATTHEW BARRETT, GURNETT, CHRISTINA · 2015 to 2024
$6.0M
NCATS NIH HHS UL1 TR000448NCATS NIH HHS UL1 TR002345NIAMS NIH HHS R01 AR067715NICHD NIH HHS U54 HD087011
6 · The paper itself

Abstract

backgroundChiari malformation type 1 affects approximately one in 1,000 people symptomatically, although one in 100 meet radiological criteria, making it a common neurological disorder. The diagnosis of underlying conditions has become more sophisticated, and new radiological markers of disease have been described. We sought to determine the prevalence and impact of additional comorbidities and underlying diagnoses in patients with Chiari malformation type 1 on symptomatology and surgical treatment.

methodsA retrospective review of 612 pediatric patients with a Chiari malformation type 1 diagnosis and imaging data evaluated between 2008 and 2018 was performed. Because of extensive clinical heterogeneity, patients were separated into four categories based on their primary comorbidities (nonsyndromic, central nervous system, skeletal, and multiple congenital anomalies) to identify associations with age of onset, radiographic measurements, syringomyelia, and surgical treatment.

resultsThe largest group had nonsyndromic Chiari malformation type 1 (70%) and the latest age at diagnosis of any group. In the syndromic group, 6% were diagnosed with a known genetic abnormality, with overgrowth syndromes being the most common. Patients with multiple congenital anomalies had the earliest Chiari malformation type 1 onset, the most severe tonsillar ectopia and obex position, and were overrepresented among surgical cases. Although there were no statistically significant differences between groups and rates of syrinx, we observed differences in individual diagnoses.

conclusionThe underlying diagnoses and presence of comorbidities in patients with Chiari malformation type 1 impacts rates of syringomyelia and surgery. Although most Chiari malformation type 1 cases are nonsyndromic, clinical evaluation of growth parameters, scoliosis, and joint hypermobility should be routine for all patients as they are useful to determine syringomyelia risk and may impact treatment.

Indexed as

Abnormalities, MultipleAdolescentAge of OnsetArnold-Chiari MalformationCentral Nervous System DiseasesChildComorbidityConnective Tissue DiseasesFemaleGenetic Diseases, InbornHumansIncidenceJoint DiseasesJoint InstabilityMagnetic Resonance ImagingMaleChiari 1 malformationComorbiditiesEpidemiologyObexSyringomyelia

Identifiers

PMID32113729
PMCPMC7156318
OpenAlexW2998957188

What OpenQuestion holds

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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.