Evidence map›Paper›PMID 26305879›Full record

SynthesisPloS one2015

The Role of Hemosiderin Excision in Seizure Outcome in Cerebral Cavernous Malformation Surgery: A Systematic Review and Meta-Analysis.

Di Ruan, Xiao-Bo Yu, Sudeep Shrestha, Lin Wang, Gao Chen

Open access · goldAbstract readMeta-AnalysisSystematic Review
In one paragraph

Synthesis in PloS one, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed, 3 pooled it
3.3field-weighted citation impact, top 8% 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

22 citing papers in PubMed, 3 syntheses or guidelines pooled it, 49 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Article
  5. Article
  6. Article
  7. Review
  8. Review
  9. Article
  10. Treatment of Brain Arteriovenous Malformations.Advances and technical standards in neurosurgery · 2024
    Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Paediatric giant cavernomas: report of three cases with a review of the literature.Child's nervous system : ChNS : official journal of the International Society for Pediatric Neurosurgery · 2021
    Review
  17. Review
  18. Article
  19. Review
  20. 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

5 authors at 1 institution in 1 country.

Di RuanDepartment of Neurosurgery, the Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, the People's Republic of China.
Xiao-Bo YuDepartment of Neurosurgery, the Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, the People's Republic of China.
Sudeep ShresthaDepartment of Neurosurgery, the Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, the People's Republic of China.
Lin WangDepartment of Neurosurgery, the Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, the People's Republic of China.
Gao ChenDepartment of Neurosurgery, the Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, the People's Republic of China.
Second Affiliated Hospital of Zhejiang University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

background and purposeWhether the excision of hemosiderin surrounding cerebral cavernous malformations (CCMs) is necessary to achieve a seizure-free result has been the subject of debate. Here, we report a systematic review of related literature up to Jan 1, 2015 including 594 patients to assess the effect of hemosiderin excision on seizure outcome in patients with CCMs by meta-analysis.

methodsTen studies comparing extended hemosiderin excision with only lesion resection were identified by searching the English-language literature. Meta-analyses, subgroup analyses and sensitivity analysis were conducted to determine the association between hemosiderin excision and seizure outcome after surgery.

resultsSeizure outcome was significantly improved in the patients who underwent an extended excision of the surrounding hemosiderin (OR, 0.62; 95% CI: 0.42-0.91; P = 0.01). In subgroup analysis, studies from Asia (OR, 0.42; 95% CI: 0.25-0.71; P = 0.001), male-majority (female ratio < 50%) studies (OR, 0.56; 95% CI: 0.33-0.96; P = 0.04), low occurrence rate of multiple CCMs (OR, 0.37; 95% CI: 0.20-0.71; P = 0.003), cohort studies (OR, 0.44; 95% CI: 0.28-0.68; P = 0.78), longer duration of seizure symptoms (> 1 year) before surgery (OR, 0.43; 95% CI: 0.22-0.84; P = 0.01), lesion diameter > 2 cm (OR, 0.41; 95% CI: 0.19-0.87; P = 0.02) and short-term (< 3 years) follow-up (OR, 0.48; 95% CI: 0.29-0.80; P = 0.005) tended to correlate with a significantly favorable outcome.

conclusionPatients who underwent extended surrounding hemosiderin excision could exhibit significantly improved seizure outcomes compared to patients without hemosiderin excision. However, further well-designed prospective multiple-center RCT studies are still needed.

Indexed as

AsiaEpilepsyHemangioma, Cavernous, Central Nervous SystemHemosiderinHumansRetrospective StudiesSeizuresTreatment OutcomeHemosiderin

Identifiers

PMID26305879
PMCPMC4548944
OpenAlexW2234944462

What OpenQuestion holds

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LicenceCC BY
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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.