Evidence map›Paper›PMID 34191202›Full record

SynthesisNeurosurgical review2022

Surgery for cerebral cavernous malformations: a systematic review and meta-analysis.

Lauren Harris, Michiel H F Poorthuis, Patrick Grover, Neil Kitchen, Rustam Al-Shahi Salman

Open access · greenAbstract readMeta-AnalysisSystematic Review
PubMed Publisher
In one paragraph

Synthesis in Neurosurgical review, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
1.5field-weighted citation impact, top 15% 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

11 citing papers in PubMed, 22 citations in OpenAlex.

  1. Trial
  2. The skin as the mirror of the soul: familial multiple cavernous malformation syndrome in an infant with a ruptured intracranial cavernoma and multiple skin lesions.Child's nervous system : ChNS : official journal of the International Society for Pediatric Neurosurgery · 2026
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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

5 authors at 3 institutions in 2 countries.

Lauren HarrisDepartment of Neurosurgery, National Hospital for Neurology and Neurosurgery, Queen Square, London, UK. lauren.harris7@nhs.net.ORCID http://orcid.org/0000-0003-3255-7033
Michiel H F PoorthuisDepartment of Neurology and Neurosurgery, Brain Center Rudolf Magnus, University Medical Center Utrecht, Utrecht, Netherlands.
Patrick GroverDepartment of Neurosurgery, National Hospital for Neurology and Neurosurgery, Queen Square, London, UK.
Neil KitchenDepartment of Neurosurgery, National Hospital for Neurology and Neurosurgery, Queen Square, London, UK.
Rustam Al-Shahi SalmanCentre for Clinical Brain Sciences, University of Edinburgh, Edinburgh, UK. Rustam.al-shahi@ed.ac.uk.
National Hospital for Neurology and Neurosurgery · GBUniversity Medical Center Utrecht · NLUniversity of Edinburgh · GB

Funding

Medical Research Council G1002605Medical Research Council G108/613
6 · The paper itself

Abstract

backgroundWe sought to quantify the risks of neurosurgical excision of cerebral cavernous malformations (CCMs) in a systematic review of cohort studies.

methodsWe updated our previous systematic review by searching OVID Medline, OVID EMBASE, and the Cochrane Library from 1 January 2013 to 30 April 2019. The primary outcome was a composite of death attributed to CCM or surgery, non-fatal symptomatic intracerebral haemorrhage (ICH), or new or worsened persistent non-haemorrhagic focal neurological deficit (FND).

resultsWe included 70 cohorts, 67 reporting surgery alone, and three compared surgery to conservative management. A total of 5,089 patients (median age 36 years, 52% female) underwent surgery (total follow-up 19,404 patient-years). The annual rate of the composite outcome was 4.2% (95% CI 2.9 to 5.7; 46 cohorts; I

conclusionsThe risk of death, ICH, or FND after CCM excision is ~ 4%. This risk is higher for brainstem CCM and CCM that have caused ICH but has not changed over time.

trial registrationThis systematic review was registered (PROSPERO CRD42019131246).

Indexed as

Hemangioma, Cavernous, Central Nervous SystemAdultBrain StemCerebral HemorrhageCohort StudiesConservative TreatmentFemaleHumansMaleCerebral cavernous malformationsIntracranial haemorrhageNeurological deficitSurgery

Identifiers

PMID34191202
OpenAlexW3175710054

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.