Evidence map›Paper›PMID 26270948›Full record

ArticleBMJ open2015

Antiepileptic drugs and the risk of ischaemic stroke and myocardial infarction: a population-based cohort study.

Christel Renoux, Sophie Dell'Aniello, Olli Saarela, Kristian B Filion, Jean-François Boivin

Open access · goldAbstract read
In one paragraph

Article in BMJ open, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
8.0field-weighted citation impact, top 3% 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

16 citing papers in PubMed, 51 citations in OpenAlex.

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  16. The causes of new-onset epilepsy and seizures in the elderly.Neuropsychiatric disease and treatment · 2016
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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 1 country.

Christel RenouxCentre for Clinical Epidemiology, Lady Davis Institute for Medical Research, Jewish General Hospital, Montréal, Québec, Canada Department of Neurology and Neurosurgery, McGill University, Montréal, Québec, Canada Department of Epidemiology and Biostatistics, McGill University, Montréal, Québec, Canada.
Sophie Dell'AnielloCentre for Clinical Epidemiology, Lady Davis Institute for Medical Research, Jewish General Hospital, Montréal, Québec, Canada.
Olli SaarelaDalla Lana School of Public Health, University of Toronto, Toronto, Ontario, Canada.
Kristian B FilionCentre for Clinical Epidemiology, Lady Davis Institute for Medical Research, Jewish General Hospital, Montréal, Québec, Canada Department of Epidemiology and Biostatistics, McGill University, Montréal, Québec, Canada Division of Clinical Epidemiology, Department of Medicine, McGill University, Montréal, Québec, Canada.
Jean-François BoivinCentre for Clinical Epidemiology, Lady Davis Institute for Medical Research, Jewish General Hospital, Montréal, Québec, Canada Department of Epidemiology and Biostatistics, McGill University, Montréal, Québec, Canada.
Jewish General Hospital · CAMcGill University · CAPublic Health Ontario · CA

Funding

Canadian Institutes of Health Research DRB-126643
6 · The paper itself

Abstract

objectivesHepatic enzyme-inducing antiepileptic drugs (AEDs) increase serum lipid levels and other atherogenic markers via the induction of cytochrome P450 and may therefore increase the risk of vascular events. We sought to assess the risk of ischaemic stroke and myocardial infarction (MI) according to AED enzymatic properties.

designPopulation-based cohort study with nested case-control analysis.

setting650 general practices in the UK contributing to the Clinical Practice Research Datalink.

participantsA cohort of 252,407 incident AED users aged 18 or older between January 1990 and April 2013. For each case of ischaemic stroke or MI, up to 10 controls were randomly selected among the cohort members in the risk sets defined by the case and matched on age, sex, indication for AED, calendar time and duration of follow-up.

interventionsCurrent use of enzyme-inducing and enzyme-inhibiting AEDs compared with non-inducing AEDs. PRIMARY OUTCOME MEASURES: Incidence rate ratios (RRs) of ischaemic stroke and MI.

results5069 strokes and 3636 MIs were identified during follow-up. Inducing AEDs use was associated with a small increased risk of ischaemic stroke (RR=1.16, 95% CI 1.02 to 1.33) relative to non-inducing AEDs, most likely due to residual confounding. However, current use of inducing AEDs for ≥ 24 months was associated with a 46% increased risk of MI (RR=1.46, 95% CI 1.15 to 1.85) compared with the same duration of non-inducing AED, corresponding to a risk difference of 1.39/1000 (95% CI 0.33 to 2.45) persons per year. Current use of inhibiting AED was associated with a decreased risk of MI (RR=0.81, 95% CI 0.66 to 1.00).

conclusionsThe use of enzyme-inducing AEDs was not associated with an increased risk of ischaemic stroke; a small increase of MI with prolonged use was observed. In contrast, use of inhibiting AEDs was associated with a decreased risk of MI.

Indexed as

AgedAged, 80 and overAnticonvulsantsCase-Control StudiesFemaleHumansMaleMiddle AgedMyocardial InfarctionResearch DesignRetrospective StudiesRisk FactorsStrokeUnited KingdomAnticonvulsantsAntiepileptic DrugsEPIDEMIOLOGY

Identifiers

PMID26270948
PMCPMC4538287
OpenAlexW1947904890

What OpenQuestion holds

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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 OpenQuestion graph.