Evidence map›Paper›PMID 34097175›Full record

ArticleNeurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology2022

Diagnosis and treatment of Chiari malformation type 1 in children: the International Consensus Document.

Luca Massimi, Paola Peretta, Alessandra Erbetta, Alessandra Solari, Mariangela Farinotti, Palma Ciaramitaro, Veronica Saletti, Massimo Caldarelli, Alexandre Casagrande Canheu, Carlo Celada and 27 more

Open access · hybridAbstract readConsensus Statement
In one paragraph

Article in Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
30citing papers in PubMed, 3 pooled it
8.0field-weighted citation impact, top 2% 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

30 citing papers in PubMed, 3 syntheses or guidelines pooled it, 55 citations in OpenAlex.

  1. Intraoperative ultrasonography in the surgical management of Chiari I malformation: A systematic review and meta-analysis of outcomes and applications.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2026
    Pooled it
  2. Pooled it
  3. The management of Chiari malformation type 1 and syringomyelia in children: a review of the literature.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2021
    Pooled it
  4. The role of tonsillar manipulation in posterior fossa decompression for Chiari I malformation: a 26-year institutional experience.Child's nervous system : ChNS : official journal of the International Society for Pediatric Neurosurgery · 2026
    Article
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  6. Review
  7. Pediatric complex Chiari I Malformation-how complex is it?Child's nervous system : ChNS : official journal of the International Society for Pediatric Neurosurgery · 2026
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  16. Neurological outcome following delayed traction and fixation in severe tetraparesis consecutive to posterior decompression for Chiari malformation: a case report.Child's nervous system : ChNS : official journal of the International Society for Pediatric Neurosurgery · 2024
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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

37 authors at 19 institutions in 8 countries.

Luca MassimiPediatric Neurosurgery, Fondazione Policlinico Universitario A. Gemelli IRCCS, Largo A. Gemelli, 8, 00168, Rome, Italy. lucamax30@hotmail.com.ORCID http://orcid.org/0000-0003-3088-0822
Paola PerettaPediatric Neurosurgery, AOU Citta' della Salute e della Scienza di Torino, Torino, Italy.
Alessandra ErbettaDepartment of Neuroradiology, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy.
Alessandra SolariNeuroepidemiology Unit - Scientific Directorate, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy.
Mariangela FarinottiNeuroepidemiology Unit - Scientific Directorate, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy.
Palma CiaramitaroDepartment of Neuroscience, AOU Citta' della Salute e della Scienza di Torino, Torino, Italy.
Veronica SalettiDepartment of Pediatric Neurology, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy.
Massimo CaldarelliPediatric Neurosurgery, Fondazione Policlinico Universitario A. Gemelli IRCCS, Largo A. Gemelli, 8, 00168, Rome, Italy.
Alexandre Casagrande CanheuPediatric Neurosurgery Division, Universidade Estadual de Londrina, Londrina, Brazil.
Carlo Celada"Associazione Italiana Siringomielia e Arnold Chiari", Garino, Italy.
Luisa ChiappariniDepartment of Neuroradiology, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy.
Daniela ChieffoClinical Psychology Unit, Fondazione Policlinico Universitario A Gemelli IRCCS and UCSC, Rome, Italy.
Giuseppe CinalliPediatric Neurosurgery, Santobono-Pausilipon Children's Hospital, Naples, Italy.
Federico Di RoccoPediatric Neurosurgery Department, Université de Lyon, INSERM U1033, Hopital Femme Mère Enfant, Lyon, France.
Marika FurlanettoDepartment of Neurosurgery, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy.
Flavio GiordanoDepartment of Neurosurgery, Meyer Pediatric Hospital, Florence, Italy.
George JalloInstitute for Brain Protection Sciences, Johns Hopkins All Children's Hospital, St. Petersburg, FL, USA.
Syril JamesDepartment of Pediatric Neurosurgery, Necker Enfants Malades Hospital, Paris, France.
Paola LanteriDepartment of Diagnostic and Technology, Neurophysiopathology Unit, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy.
Christian LemarchandConseil Scientifique APAISER S&C, Treillières, France.
Martina Messing-JüngerPädiatrische Neurochirurgie, Asklepios Kinderklinik, Sankt Augustin, Germany.
Cecilia ParazziniDepartment of Pediatric Radiology and Neuroradiology, Children Hospital V. Buzzi, Milan, Italy.
Giovanna PaternosterDepartment of Pediatric Neurosurgery, Necker Enfants Malades Hospital, Paris, France.
Gianluca PiatelliDepartment of Neurosurgery, Gaslini Children's Hospital, Genoa, Italy.
Maria A PocaNeurosurgery and Pediatric Neurosurgery, Vall d'Hebron Hospital Universitari, Neurotrauma and Neurosurgery Research Unit, and Universitat Autònoma de Barcelona, Barcelona, Spain.
Prab PrabahkarDepartment of Neurology, Great Ormond Street Hospital for Children, London, UK.
Federica RicciPediatric Neuropsychiatric Unit, AOU Citta' della Salute e della Scienza di Torino, Torino, Italy.
Andrea RighiniDepartment of Pediatric Radiology and Neuroradiology, Children Hospital V. Buzzi, Milan, Italy.
Francesco SalaSection of Neurosurgery, Department of Neurosciences, Biomedicine and Movement Sciences, University Hospital, Verona, Italy.
Juan SahuquilloNeurosurgery and Pediatric Neurosurgery, Vall d'Hebron Hospital Universitari, Neurotrauma and Neurosurgery Research Unit, and Universitat Autònoma de Barcelona, Barcelona, Spain.
Marcus StoodleyDepartment of Clinical Medicine, Macquarie University Clinical Associates, Sidney, Australia.
Giuseppe TalamontiDepartment of Neurosurgery, ASST Niguarda, Milan, Italy.
Dominic ThompsonDepartment of Neurosurgery, Great Ormond Street Hospital for Children, London, UK.
Fabio TriulziDepartment of Pathophysiology and Transplantation, Neuroradiology Unit, University of Milan, Fondazione IRCCS Cà Granda, Ospedale Maggiore Policlinico, Milan, Italy.
Mino ZucchelliNeurochirurgia Pediatrica, IRCCS Istituto delle Scienze Neurologiche di Bologna, Bologna, Italy.
Laura ValentiniDepartment of Neurosurgery, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy.
International Experts - Jury of the Chiari & Syringomyelia Consensus Conference, “Milan, November 11–13, 2019”
Fondazione IRCCS Istituto Neurologico Carlo Besta · ITAgostino Gemelli University Polyclinic · ITAzienda Ospedaliera Citta' della Salute e della Scienza di Torino · ITGreat Ormond Street Hospital · GBOspedale dei Bambini Vittore Buzzi · ITUniversitat Autònoma de Barcelona · ESAsklepios Klinik Sankt Augustin · DEAssociazione Italiana Arbitri · ITAzienda Socio Sanitaria Territoriale Grande Ospedale Metropolitano Niguarda · ITIstituto delle Scienze Neurologiche di Bologna · ITIstituto Giannina Gaslini · ITJohns Hopkins University · USMacquarie University · AUMeyer Children's Hospital · ITSantobono Children's Hospital · ITUniversidade Estadual de Londrina · BRUniversité Claude Bernard Lyon 1 · FRUniversity of Milan · ITUniversity of Verona · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundChiari malformation type 1 (CM1) is a rare condition where agreed classification and treatment are still missing. The goal of this study is to achieve a consensus on the diagnosis and treatment of CM1 in children.

methodsA multidisciplinary panel formulated 57 provisional statements based on a review of the literature. Thirty-four international experts (IE) participated in a Delphi study by independently rating each statement on a 4-point Likert scale ("strongly disagree," "disagree," "agree," "strongly agree"). Statements that were endorsed ("agree" or "strongly agree") by < 75% of raters were re-formulated, or new statements were added, and another Delphi round followed (up to a maximum of three).

resultsThirty-five IE were contacted and 34 agreed to participate. A consensus was reached on 30/57 statements (52.6%) after round 1. Three statements were added, and one removed. After round 2, agreement was reached on 56/59 statements (94.9%). Finally, after round 3, which took place during the 2019 Chiari Consensus Conference (Milan, Italy), agreement was reached on 58/59 statements (98.3%) about four main sections (Definition and Classification, Planning, Surgery, Isolated Syringomyelia). Only one statement did not gain a consensus, which is the "definition of radiological failure 24 month post-surgery."

conclusionsThe consensus document consists of 58 statements (24 on diagnosis, 34 on treatment), serving clinicians and researchers following children with CM1. There is a clear need for establishing an international network and registry and to promote collaborative studies to increase the evidence base and optimize the long-term care of this patient population.

Indexed as

Arnold-Chiari MalformationSyringomyeliaChildDelphi TechniqueHumansItalyChiari 1 malformationChildrenConsensusCraniovertebral decompressionManagementSyringomyelia

Identifiers

PMID34097175
PMCPMC8789635
OpenAlexW3172229357

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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.