Evidence mapPaperPMID 31384308Full record

ArticleTherapeutic advances in neurological disorders2019

Does statin increase the risk of intracerebral hemorrhage in stroke survivors? A meta-analysis and trial sequential analysis.

Ru Jian Jonathan Teoh, Chi-Jung Huang, Chi Peng Chan, Li-Yin Chien, Chih-Ping Chung, Shih-Hsien Sung, Chen-Huan Chen, Chern-En Chiang, Hao-Min Cheng

Open access · goldAbstract read
In one paragraph

Article in Therapeutic advances in neurological disorders, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed, 2 pooled it
1.9field-weighted citation impact, top 14% 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

12 citing papers in PubMed, 2 syntheses or guidelines pooled it, 29 citations in OpenAlex.

  1. Pooled it
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  3. Review
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  11. Stroke Risk Factors of Stroke Patients in China: A Nationwide Community-Based Cross-Sectional Study.International journal of environmental research and public health · 2022
    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

9 authors at 3 institutions in 2 countries.

Ru Jian Jonathan TeohInternational Health Program, National Yang-Ming University, Taipei.
Chi-Jung HuangCenter for Evidence-based Medicine, Taipei Veterans General Hospital, Taipei.
Chi Peng ChanRoyal Infirmary of Edinburgh, NHS Lothian, Edinburgh, UK.
Li-Yin ChienInternational Health Program, National Yang-Ming University, Taipei.
Chih-Ping ChungDepartment of Neurology, National Yang-Ming University, Taipei.
Shih-Hsien SungDepartment of Medicine, National Yang-Ming University, Taipei.
Chen-Huan ChenDepartment of Internal Medicine, Taipei Veterans General Hospital, Taipei.
Chern-En ChiangDepartment of Medicine, National Yang-Ming University, Taipei.
Hao-Min ChengCenter for Evidence-based Medicine, Taipei Veterans General Hospital, No. 201, Sec. 2, Shih-Pai Road, Beitou District, Taipei 11217.ORCID https://orcid.org/0000-0002-3885-6600
National Yang Ming Chiao Tung University · TWTaipei Veterans General Hospital · TWNHS Lothian · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundIt remains debatable whether statin increases the risk of intracerebral hemorrhage (ICH) in poststroke patients.

methodsWe systematically searched PubMed, EMBASE, and CENTRAL for randomized controlled trials. Trial sequential analysis (TSA) was conducted to assess the reliability and conclusiveness of the available evidence in the meta-analysis. To evaluate the overall effectiveness, the net composite endpoints were derived by totaling ischemic stroke, hemorrhagic stroke, transient ischemic attack (TIA), myocardial infarction, and cardiovascular mortality.

resultsA total of 17 trials with 11,576 subjects with previous ischemic stroke, TIA, or ICH were included, in which statin therapy increased the risk of hemorrhagic stroke (risk ratio [RR], 1.42; 95% confidence interval [CI], 1.07-1.87), but reduced the risk of ischemic stroke (RR, 0.85; 95% CI, 0.75-0.95). For the net composite endpoints, statin therapy was associated with a 17% risk reduction (95% CI, 12-21%; number needed to treat = 6). With a control event rate 2% and RR increase 40%, the TSA suggested a conclusive signal of an increased risk of hemorrhagic stroke in stroke survivors taking statin. However, with the sensitivity analysis by changing assumptions, the conclusions about hemorrhagic stroke risk were less robust.

conclusionsStatin therapy in poststroke patients increased the risk of hemorrhagic stroke but effectively reduced ischemic stroke risk. Weighing the benefits and potential harms, statin has an overall beneficial effect in patients with previous stroke or TIA. However, more studies are required to investigate the conclusiveness of the increased hemorrhagic stroke risk revealed in our study.

Indexed as

cardiovascular eventscerebrovascular diseasemeta-analysissecondary stroke preventionstatintrial sequential analysis

Identifiers

PMID31384308
PMCPMC6657129
OpenAlexW2962965609

What Socratic holds

Textmetadata
LicenceCC BY-NC
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 Socratic graph.