Evidence map›Paper›PMID 34155533›Full record

SynthesisChild's nervous system : ChNS : official journal of the International Society for Pediatric Neurosurgery2021

Association between cerebral perfusion and paediatric postoperative cerebellar mutism syndrome after posterior fossa surgery-a systematic review.

Narjes Ahmadian, K M van Baarsen, P A J T Robe, E W Hoving

Open access · hybridAbstract readSystematic Review
In one paragraph

Synthesis in Child's nervous system : ChNS : official journal of the International Society for Pediatric Neurosurgery, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed, 1 pooled it
1.1field-weighted citation impact, top 23% 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

6 citing papers in PubMed, 1 synthesis or guideline pooled it, 12 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Article
  5. Review
  6. Cerebellar mutism syndrome in pediatric head trauma with cerebellar injury.Child's nervous system : ChNS : official journal of the International Society for Pediatric Neurosurgery · 2022
    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

4 authors at 2 institutions in 2 countries.

Narjes AhmadianDepartment of Neurology and Neurosurgery, Rudolf Magnus Brain Institute, University Medical Center of Utrecht, 100 Heidelberglaan, G03.126, 3584 CX, Utrecht, The Netherlands. n.ahmadian786@gmail.com.ORCID http://orcid.org/0000-0001-5365-9659
K M van BaarsenDepartment of Neurology and Neurosurgery, Princess Maxima Center for Pediatric Oncology, Heidelberglaan 25, 3584 CS, Utrecht, The Netherlands.
P A J T RobeDepartment of Neurology and Neurosurgery, Rudolf Magnus Brain Institute, University Medical Center of Utrecht, 100 Heidelberglaan, G03.126, 3584 CX, Utrecht, The Netherlands.
E W HovingDepartment of Pediatric Neurosurgery, Princess Maxima Center for Pediatric Oncology, Heidelberglaan 25, 3584 CS, Utrecht, The Netherlands.
Heidelberg University · DEPrincess Máxima Center · NL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundPaediatric postoperative cerebellar mutism syndrome (ppCMS) is a common complication following the resection of a cerebellar tumour in children. It is hypothesized that loss of integrity of the cerebellar output tracts results in a cerebello-cerebral "diaschisis" and reduced function of supratentorial areas of the brain.

methodsWe performed a systematic review of the literature according to the PRISMA guidelines, in order to evaluate the evidence for hypoperfusion or hypofunction in the cerebral hemispheres in patients with ppCMS. Articles were selected based on the predefined eligibility criteria and quality assessment.

resultsFive studies were included, consisting of three prospective cohort studies, one retrospective cohort study and one retrospective case control study. Arterial spin labelling (ASL) perfusion MRI, dynamic susceptibility contrast (DSC) perfusion MRI and single photon emission computed tomography (SPECT) were used to measure the cerebral and cerebellar tissue perfusion or metabolic activity. Reduced cerebral perfusion was predominantly demonstrated in the frontal lobe.

conclusionsThis systematic review shows that, after posterior fossa tumour resection, cerebral perfusion is reduced in ppCMS patients compared to patients without ppCMS. Well-powered prospective studies, including preoperative imaging, are needed to ascertain the cause and role of hypoperfusion in the pathophysiology of the syndrome.

Indexed as

Cerebellar DiseasesMutismCase-Control StudiesCerebellumCerebrovascular CirculationChildHumansPerfusionPostoperative ComplicationsProspective StudiesRetrospective StudiesArterial spin labelling (ASL)Cerebral perfusionDynamic susceptibility contrast (DSC)Paediatric postoperative cerebellar mutism syndrome (ppCMS)Posterior fossa syndromeSingle photon emission tomography (SPECT)

Identifiers

PMID34155533
PMCPMC8423702
OpenAlexW3175819768

What OpenQuestion holds

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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.