Evidence map›Paper›PMID 34859226›Full record

ReviewNeuro-oncology advances

Leptomeningeal disease in neurosurgical brain metastases patients: A systematic review and meta-analysis.

Ishaan Ashwini Tewarie, Charissa A C Jessurun, Alexander F C Hulsbergen, Timothy R Smith, Rania A Mekary, Marike L D Broekman

Abstract readReview
In one paragraph

Review in Neuro-oncology advances. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
27citing 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

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

  1. Pooled it
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  16. The path to leptomeningeal metastasis.Nature reviews. Cancer · 2024
    Review
  17. The anatomic basis of leptomeningeal metastasis.The Journal of experimental medicine · 2024
    Review
  18. Article
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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

6 authors.

Ishaan Ashwini TewarieDepartment of Neurosurgery, Computational Neuroscience Outcomes Center (CNOC), Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA.
Charissa A C JessurunDepartment of Neurosurgery, Computational Neuroscience Outcomes Center (CNOC), Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA.
Alexander F C HulsbergenDepartment of Neurosurgery, Computational Neuroscience Outcomes Center (CNOC), Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA.
Timothy R SmithDepartment of Neurosurgery, Computational Neuroscience Outcomes Center (CNOC), Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA.
Rania A MekaryDepartment of Neurosurgery, Computational Neuroscience Outcomes Center (CNOC), Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA.
Marike L D BroekmanDepartment of Neurosurgery, Computational Neuroscience Outcomes Center (CNOC), Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA.ORCID https://orcid.org/0000-0003-2205-5179

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundLeptomeningeal disease (LMD) is a complication distinguished by progression of metastatic disease into the leptomeninges and subsequent spread via cerebrospinal fluid (CSF). Although treatments for LMD exist, it is considered fatal with a median survival of 2-4 months. A broader overview of the risk factors that increase the brain metastasis (BM) patient's risk of LMD is needed. This meta-analysis aimed to systematically review and quantitatively assess risk factors for LMD after surgical resection for BM.

methodsA systematic literature search was performed on 7 May 2021. Pooled effect sizes were calculated using a random-effects model for variables reported by three or more studies.

resultsAmong 503 studies, thirteen studies met the inclusion criteria with a total surgical sample size of 2105 patients, of which 386 patients developed LMD. The median incidence of LMD across included studies was 16.1%. Eighteen unique risk factors were reported as significantly associated with LMD occurrence, including but not limited to: larger tumor size, infratentorial BM location, proximity of BM to cerebrospinal fluid spaces, ventricle violation during surgery, subtotal or piecemeal resection, and postoperative stereotactic radiosurgery. Pooled results demonstrated that breast cancer as the primary tumor location (HR = 2.73, 95% CI: 2.12-3.52) and multiple BMs (HR = 1.37, 95% CI: 1.18-1.58) were significantly associated with a higher risk of LMD occurrence.

conclusionBreast cancer origin and multiple BMs increase the risk of LMD occurrence after neurosurgery. Several other risk factors which might play a role in LMD development were also identified.

Indexed as

brain metastasesleptomeningeal diseasepredictive factorsresection

Identifiers

PMID34859226
PMCPMC8633671

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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.