Evidence map›Paper›PMID 32943418›Full record

ReviewAJNR. American journal of neuroradiology2020

The Perplexity Surrounding Chiari Malformations - Are We Any Wiser Now?

S B Hiremath, A Fitsiori, J Boto, C Torres, N Zakhari, J-L Dietemann, T R Meling, M I Vargas

Abstract readReview
In one paragraph

Review in AJNR. American journal of neuroradiology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
19citing 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

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

  1. Redefining Chiari Malformation Type III: a systematic review of prognostic stratification based on a three-tier MRI-based anatomical classification.Child's nervous system : ChNS : official journal of the International Society for Pediatric Neurosurgery · 2025
    Pooled it
  2. Article
  3. Hidden Hollows of the Fetal Cranium-Lacunar Skull in Isolation.Case reports in obstetrics and gynecology · 2026
    Article
  4. Article
  5. [Congenital brain malformations].Radiologie (Heidelberg, Germany) · 2024
    Article
  6. Article
  7. Article
  8. Review
  9. Review
  10. Article
  11. Article
  12. Article
  13. Chiari Malformation Type 1 in Adults.Advances and technical standards in neurosurgery · 2023
    Article
  14. Review
  15. Pediatric Chiari I malformation: novel and traditional measurements associated with syrinx and surgery.Child's nervous system : ChNS : official journal of the International Society for Pediatric Neurosurgery · 2022
    Article
  16. Review
  17. New Association between Idiopathic Scoliosis and Luckenschadel Skull (Lacunar Skull).Medical principles and practice : international journal of the Kuwait University, Health Science Centre · 2022
    Article
  18. Article
  19. 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

8 authors.

S B HiremathFrom the Division of Diagnostic and Interventional Neuroradiology (S.B.H., A.F., J.B., M.I.V.).ORCID 0000-0003-4600-6662
A FitsioriFrom the Division of Diagnostic and Interventional Neuroradiology (S.B.H., A.F., J.B., M.I.V.).ORCID 0000-0002-4540-1428
J BotoFrom the Division of Diagnostic and Interventional Neuroradiology (S.B.H., A.F., J.B., M.I.V.).ORCID 0000-0003-1448-861X
C TorresDivision of Neuroradiology (S.B.H., C.T., N.Z.), Department of Radiology, University of Ottawa, The Ottawa Hospital Civic Campus, Ottawa, Ontario, Canada.ORCID 0000-0003-4104-7115
N ZakhariDivision of Neuroradiology (S.B.H., C.T., N.Z.), Department of Radiology, University of Ottawa, The Ottawa Hospital Civic Campus, Ottawa, Ontario, Canada.ORCID 0000-0002-9990-2420
J-L DietemannUniversity of Strasbourg (J.-L.D.), Strasbourg, France.ORCID 0000-0002-6846-5096
T R MelingDivision of Neurosurgery (T.R.M.), Department of Clinical Neurosciences, Geneva University Hospitals, Geneva, Switzerland.ORCID 0000-0001-6595-0873
M I VargasFrom the Division of Diagnostic and Interventional Neuroradiology (S.B.H., A.F., J.B., M.I.V.) maria.i.vargas@hcuge.ch.ORCID 0000-0002-6571-5336

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Chiari malformations are a diverse group of abnormalities of the brain, craniovertebral junction, and the spine. Chiari 0, I, and 1.5 malformations, likely a spectrum of the same malformation with increasing severity, are due to the inadequacy of the para-axial mesoderm, which leads to insufficient development of occipital somites. Chiari II malformation is possibly due to nonclosure of the caudal end of the neuropore, with similar pathogenesis in the rostral end, which causes a Chiari III malformation. There have been significant developments in the understanding of this complex entity owing to insights into the pathogenesis and advancements in imaging modalities and neurosurgical techniques. This article aims to review the different types and pathophysiology of the Chiari malformations, along with a description of the various associated abnormalities. We also highlight the role of ante- and postnatal imaging, with a focus on the newer techniques in the presurgical evaluation, with a brief mention of the surgical procedures and the associated postsurgical complications.

Indexed as

Arnold-Chiari MalformationHumans

Identifiers

PMID32943418
PMCPMC7658834

What OpenQuestion holds

Textmetadata
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.