Evidence map›Paper›PMID 31854446›Full record

SynthesisBioscience reports2020

Decompressive hemicraniectomy versus medical treatment of malignant middle cerebral artery infarction: a systematic review and meta-analysis.

Heng Wei, Fu-Min Jia, Hong-Xiang Yin, Zhen-Li Guo

Abstract readMeta-AnalysisSystematic Review
In one paragraph

Synthesis in Bioscience reports, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
12citing 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

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

  1. Surgical decompression for malignant cerebral oedema after ischaemic stroke.The Cochrane database of systematic reviews · 2022
    Pooled it
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  4. Observational
  5. NK1 tachykinin receptor antagonist treatment reduces cerebral edema and intracranial pressure in an ovine model of ischemic stroke.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2024
    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

4 authors.

Heng WeiDepartment of Neurology, Hubei Provincial Hospital of Integrated Chinese and Western Medicine, Hubei University of Chinese Medicine, Wuhan 430000, China.
Fu-Min JiaDepartment of Neurology, Hubei Provincial Hospital of Integrated Chinese and Western Medicine, Hubei University of Chinese Medicine, Wuhan 430000, China.
Hong-Xiang YinDepartment of Neurology, Hubei Provincial Hospital of Integrated Chinese and Western Medicine, Hubei University of Chinese Medicine, Wuhan 430000, China.
Zhen-Li GuoDepartment of Neurology, Hubei Provincial Hospital of Integrated Chinese and Western Medicine, Hubei University of Chinese Medicine, Wuhan 430000, China.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesTo estimate evidence for decompressive hemicraniectomy (DHC) versus medical treatment effects on survival rate and favorable functional recovery among patients of malignant middle cerebral artery infarction (MMCAI) in randomized controlled trials (RCTs).

designThe present study is a systematic review and meta-analysis of RCTs.

settingThe MEDLINE/PubMed, EMBASE, Springer, Cochrane Collaboration database, China National Knowledge Infrastructure (CNKI) database, and Wanfang database were comprehensively searched for RCTs regarding the effects of DHC versus medical treatment among patients of MMCAI in these English and Chinese electronic databases from inception to 1 June 2019. Two reviewers independently retrieved RCTs and extracted relevant information. The methodological quality of the included trials was estimated using the Cochrane risk of bias tool. Review Manager5.3.5 software was used for statistical analyses. The statistical power of meta-analysis was estimated by Power and Precision, version 4 software.

participantsNine RCTs with a total of 425 patients with MMCAI, containing 210 cases in the DHC group and 215 cases in the medical treatment group, met the inclusion criteria were included. Primary outcomes were measured by survival rate, defined as modified Rankin scale (mRS) score 0-5 and favorable functional recovery as mRS score 0-3. The follow-up time of all studies was at 6-12months.

resultsFirst, compared with the medical treatment group, DHC was associated with a statistically significant increase survival rate (RR: 1.96, 95%CI 1.61-2.38, P < 0.00001) and favorable functional recovery (RR: 1.62, 95%CI 1.11-2.37, P = 0.01). Second, subgroup analysis: (1) Compared with the medical treatment group among patients age ≤60 years, DHC was associated with a statistically significant increase survival rate (RR = 2.20, 95%CI 1.60-3.04, P < 0.00001); (2) Compared with the medical treatment group among patients of age >60 years, DHC was also associated with a statistically significant increase survival rate (RR: 1.93, 95%CI 1.45-2.59, P < 0.00001); (3) Compared with the medical treatment group, the time of DHC was preformed within 48 h from the onset of stroke that could statistically significant increase survival rate (RR: 2.16, 95%CI 1.69-2.75, P < 0.00001). Third, sensitivity analyses that measured the results were consistent, indicating that the results were stable. Fourth, the results of statistical power analysis were ≥80%. Finally, the funnel plot of the survival rate included nine RCTs showed no remarkable publication bias.

conclusionsOur study results indicated that DHC could increase survival rate and favorable functional recovery among patients age ≤60 or >60 years. The optimal time for DHC might be no more than 48 h from the onset of symptoms. However, due to the limitations of this research, it is necessary to design high quality, large-scale RCTs to further evaluate these findings.

Indexed as

Brain NeoplasmsDecompressive CraniectomyHumansInfarction, Middle Cerebral ArteryRandomized Controlled Trials as TopicSurvival RateTreatment Outcomedecompressive hemicraniectomymalignant infarction of the middle cerebral arterymedical treatmentrandomised controlled trials

Identifiers

PMID31854446
PMCPMC6944664

What OpenQuestion holds

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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.