Evidence map›Paper›PMID 28246253›Full record

ArticleCMAJ : Canadian Medical Association journal = journal de l'Association medicale canadienne2017

Association between statin use and ischemic stroke or major hemorrhage in patients taking dabigatran for atrial fibrillation.

Tony Antoniou, Erin M Macdonald, Zhan Yao, Simon Hollands, Tara Gomes, Mina Tadrous, Muhammad M Mamdani, David N Juurlink, Canadian Drug Safety and Effectiveness Research Network

Open access · goldAbstract read
In one paragraph

Article in CMAJ : Canadian Medical Association journal = journal de l'Association medicale canadienne, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed, 3 pooled it
5.4field-weighted citation impact, top 4% 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

26 citing papers in PubMed, 3 syntheses or guidelines pooled it, 56 citations in OpenAlex.

  1. Pooled it
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  3. Pooled it
  4. Review
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  7. Type 2 statin use increased perioperative blood loss in primary reverse total shoulder arthroplasty.European journal of orthopaedic surgery & traumatology : orthopedie traumatologie · 2025
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  12. DOAC drug interactions management resource.Canadian pharmacists journal : CPJ = Revue des pharmaciens du Canada : RPC · 2022
    Article
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  15. Prescription patterns of direct oral anticoagulants and concomitant use of interacting medications in the Netherlands.Netherlands heart journal : monthly journal of the Netherlands Society of Cardiology and the Netherlands Heart Foundation · 2021
    Article
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

9 authors at 6 institutions in 3 countries.

Tony AntoniouDepartment of Family and Community Medicine (Antoniou), St. Michael's Hospital and University of Toronto; Li Ka Shing Knowledge Institute (Gomes) and Li Ka Shing Centre for Healthcare Analytics Research and Training (Mamdani), St. Michael's Hospital; Leslie Dan Faculty of Pharmacy (Gomes, Tadrous, Mamdani) and Department of Medicine (Juurlink), University of Toronto; Institute for Clinical Evaluative Sciences (Antoniou, Macdonald, Yao, Hollands, Gomes, Tadrous, Mamdani, Juurlink); Applied Health Research Centre (Tadrous), St. Michael's Hospital; Sunnybrook Research Institute (Juurlink), Toronto, Ont. tantoniou@smh.ca.
Erin M MacdonaldDepartment of Family and Community Medicine (Antoniou), St. Michael's Hospital and University of Toronto; Li Ka Shing Knowledge Institute (Gomes) and Li Ka Shing Centre for Healthcare Analytics Research and Training (Mamdani), St. Michael's Hospital; Leslie Dan Faculty of Pharmacy (Gomes, Tadrous, Mamdani) and Department of Medicine (Juurlink), University of Toronto; Institute for Clinical Evaluative Sciences (Antoniou, Macdonald, Yao, Hollands, Gomes, Tadrous, Mamdani, Juurlink); Applied Health Research Centre (Tadrous), St. Michael's Hospital; Sunnybrook Research Institute (Juurlink), Toronto, Ont.
Zhan YaoDepartment of Family and Community Medicine (Antoniou), St. Michael's Hospital and University of Toronto; Li Ka Shing Knowledge Institute (Gomes) and Li Ka Shing Centre for Healthcare Analytics Research and Training (Mamdani), St. Michael's Hospital; Leslie Dan Faculty of Pharmacy (Gomes, Tadrous, Mamdani) and Department of Medicine (Juurlink), University of Toronto; Institute for Clinical Evaluative Sciences (Antoniou, Macdonald, Yao, Hollands, Gomes, Tadrous, Mamdani, Juurlink); Applied Health Research Centre (Tadrous), St. Michael's Hospital; Sunnybrook Research Institute (Juurlink), Toronto, Ont.
Simon HollandsDepartment of Family and Community Medicine (Antoniou), St. Michael's Hospital and University of Toronto; Li Ka Shing Knowledge Institute (Gomes) and Li Ka Shing Centre for Healthcare Analytics Research and Training (Mamdani), St. Michael's Hospital; Leslie Dan Faculty of Pharmacy (Gomes, Tadrous, Mamdani) and Department of Medicine (Juurlink), University of Toronto; Institute for Clinical Evaluative Sciences (Antoniou, Macdonald, Yao, Hollands, Gomes, Tadrous, Mamdani, Juurlink); Applied Health Research Centre (Tadrous), St. Michael's Hospital; Sunnybrook Research Institute (Juurlink), Toronto, Ont.
Tara GomesDepartment of Family and Community Medicine (Antoniou), St. Michael's Hospital and University of Toronto; Li Ka Shing Knowledge Institute (Gomes) and Li Ka Shing Centre for Healthcare Analytics Research and Training (Mamdani), St. Michael's Hospital; Leslie Dan Faculty of Pharmacy (Gomes, Tadrous, Mamdani) and Department of Medicine (Juurlink), University of Toronto; Institute for Clinical Evaluative Sciences (Antoniou, Macdonald, Yao, Hollands, Gomes, Tadrous, Mamdani, Juurlink); Applied Health Research Centre (Tadrous), St. Michael's Hospital; Sunnybrook Research Institute (Juurlink), Toronto, Ont.
Mina TadrousDepartment of Family and Community Medicine (Antoniou), St. Michael's Hospital and University of Toronto; Li Ka Shing Knowledge Institute (Gomes) and Li Ka Shing Centre for Healthcare Analytics Research and Training (Mamdani), St. Michael's Hospital; Leslie Dan Faculty of Pharmacy (Gomes, Tadrous, Mamdani) and Department of Medicine (Juurlink), University of Toronto; Institute for Clinical Evaluative Sciences (Antoniou, Macdonald, Yao, Hollands, Gomes, Tadrous, Mamdani, Juurlink); Applied Health Research Centre (Tadrous), St. Michael's Hospital; Sunnybrook Research Institute (Juurlink), Toronto, Ont.
Muhammad M MamdaniDepartment of Family and Community Medicine (Antoniou), St. Michael's Hospital and University of Toronto; Li Ka Shing Knowledge Institute (Gomes) and Li Ka Shing Centre for Healthcare Analytics Research and Training (Mamdani), St. Michael's Hospital; Leslie Dan Faculty of Pharmacy (Gomes, Tadrous, Mamdani) and Department of Medicine (Juurlink), University of Toronto; Institute for Clinical Evaluative Sciences (Antoniou, Macdonald, Yao, Hollands, Gomes, Tadrous, Mamdani, Juurlink); Applied Health Research Centre (Tadrous), St. Michael's Hospital; Sunnybrook Research Institute (Juurlink), Toronto, Ont.
David N JuurlinkDepartment of Family and Community Medicine (Antoniou), St. Michael's Hospital and University of Toronto; Li Ka Shing Knowledge Institute (Gomes) and Li Ka Shing Centre for Healthcare Analytics Research and Training (Mamdani), St. Michael's Hospital; Leslie Dan Faculty of Pharmacy (Gomes, Tadrous, Mamdani) and Department of Medicine (Juurlink), University of Toronto; Institute for Clinical Evaluative Sciences (Antoniou, Macdonald, Yao, Hollands, Gomes, Tadrous, Mamdani, Juurlink); Applied Health Research Centre (Tadrous), St. Michael's Hospital; Sunnybrook Research Institute (Juurlink), Toronto, Ont.
Canadian Drug Safety and Effectiveness Research Network
Institute for Clinical Evaluative Sciences · CA3M (United States) · USSt Michael's Hospital · GBSt Michael’s Hospital · GBSt Michaels Hospital · GBSt. Michael's Hospital · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundDabigatran etexilate is a prodrug whose absorption is opposed by intestinal P-glycoprotein and which is converted by carboxylesterase to its active form, dabigatran. Unlike other statins, simvastatin and lovastatin are potent inhibitors of P-glycoprotein and carboxylesterase, and might either increase the risk of hemorrhage with dabigatran etexilate or decrease its effectiveness.

methodsWe conducted 2 population-based, nested case-control studies involving Ontario residents 66 years of age and older who started dabigatran etexilate between May 1, 2012, and Mar. 31, 2014. In the first study, cases were patients with ischemic stroke; in the second, cases were patients with major hemorrhage. Each case was matched with up to 4 controls by age and sex. All cases and controls received a single statin in the 60 days preceding the index date. We determined the association between each outcome and the use of simvastatin or lovastatin, relative to other statins.

resultsAmong 45 991 patients taking dabigatran etexilate, we identified 397 cases with ischemic stroke and 1117 cases with major hemorrhage. After multivariable adjustment, use of simvastatin or lovastatin was not associated with an increased risk of stroke (adjusted odds ratio [OR] 1.33, 95% confidence interval [CI] 0.88 to 2.01). In contrast, use of simvastatin and lovastatin were associated with a higher risk of major hemorrhage (adjusted OR 1.46, 95% CI 1.17 to 1.82).

interpretationIn patients receiving dabigatran etexilate, simvastatin and lovastatin were associated with a higher risk of major hemorrhage relative to other statins. Preferential use of the other statins should be considered in these patients.

Indexed as

AgedAged, 80 and overAntithrombinsAtrial FibrillationCase-Control StudiesConfidence IntervalsDabigatranDrug Therapy, CombinationFemaleHemorrhageHumansHydroxymethylglutaryl-CoA Reductase InhibitorsMaleOdds RatioOntarioRisk FactorsAntithrombinsDabigatranHydroxymethylglutaryl-CoA Reductase Inhibitors

Identifiers

PMID28246253
PMCPMC5224945
OpenAlexW2550259650

What OpenQuestion holds

Textmetadata
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.