Evidence map›Paper›PMID 24994722›Full record

ArticleStroke2014

Intracranial hemorrhage mortality in atrial fibrillation patients treated with dabigatran or warfarin.

Alvaro Alonso, Lindsay G S Bengtson, Richard F MacLehose, Pamela L Lutsey, Lin Y Chen, Kamakshi Lakshminarayan

Abstract read
In one paragraph

Article in Stroke, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
–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

19 citing papers in PubMed.

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  12. The Anticoagulated trauma patient in the age of the direct oral anticoagulants: a Canadian perspective.Scandinavian journal of trauma, resuscitation and emergency medicine · 2017
    Article
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  15. Review
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  18. Secondary stroke prevention: challenges and solutions.Vascular health and risk management · 2015
    Review
  19. 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

6 authors.

Alvaro AlonsoFrom the Division of Epidemiology and Community Health, School of Public Health (A.A., L.G.S.B., R.F.M., P.L.L., K.L.), University of Minnesota, Minneapolis; and Cardiovascular Division, Department of Medicine (L.Y.C.) and Department of Neurology (K.L.), University of Minnesota Medical School, Minneapolis. alonso@umn.edu.
Lindsay G S BengtsonFrom the Division of Epidemiology and Community Health, School of Public Health (A.A., L.G.S.B., R.F.M., P.L.L., K.L.), University of Minnesota, Minneapolis; and Cardiovascular Division, Department of Medicine (L.Y.C.) and Department of Neurology (K.L.), University of Minnesota Medical School, Minneapolis.
Richard F MacLehoseFrom the Division of Epidemiology and Community Health, School of Public Health (A.A., L.G.S.B., R.F.M., P.L.L., K.L.), University of Minnesota, Minneapolis; and Cardiovascular Division, Department of Medicine (L.Y.C.) and Department of Neurology (K.L.), University of Minnesota Medical School, Minneapolis.
Pamela L LutseyFrom the Division of Epidemiology and Community Health, School of Public Health (A.A., L.G.S.B., R.F.M., P.L.L., K.L.), University of Minnesota, Minneapolis; and Cardiovascular Division, Department of Medicine (L.Y.C.) and Department of Neurology (K.L.), University of Minnesota Medical School, Minneapolis.
Lin Y ChenFrom the Division of Epidemiology and Community Health, School of Public Health (A.A., L.G.S.B., R.F.M., P.L.L., K.L.), University of Minnesota, Minneapolis; and Cardiovascular Division, Department of Medicine (L.Y.C.) and Department of Neurology (K.L.), University of Minnesota Medical School, Minneapolis.
Kamakshi LakshminarayanFrom the Division of Epidemiology and Community Health, School of Public Health (A.A., L.G.S.B., R.F.M., P.L.L., K.L.), University of Minnesota, Minneapolis; and Cardiovascular Division, Department of Medicine (L.Y.C.) and Department of Neurology (K.L.), University of Minnesota Medical School, Minneapolis.

Funding

University of Minnesota Clinical and Translational Science Institute (UMN CTSI)UL1TR000114 · NCATS · UNIVERSITY OF MINNESOTA · PI BLAZAR, BRUCE R · 2012 to 2015
$35.0M
NCATS NIH HHS UL1 TR000114NCATS NIH HHS UL1TR000114
6 · The paper itself

Abstract

background and purposeIn randomized trials, patients with atrial fibrillation (AF) receiving dabigatran, a direct oral anticoagulant, had lower risk of intracranial bleeding (ICB) than those on warfarin. However, concerns exist about potential worse outcomes in dabigatran users if bleeding occurs, given the lack of approved reversal agents. Thus, we examined in-hospital mortality in AF patients with ICB being treated with dabigatran versus warfarin in a real-world population in the United States.

methodsWe analyzed healthcare utilization claims in the Truven Health Marketscan Research Databases. The study sample included patients with AF admitted to a hospital with a primary diagnosis of ICB. Information on medications, inpatient, and outpatient diagnoses was obtained from available claims. Propensity score-adjusted risk ratios and 95% confidence intervals of in-hospital mortality comparing current users of dabigatran versus warfarin were estimated using relative risk regression.

resultsAmong 2391 AF patients admitted with ICB (2290 on warfarin, 101 on dabigatran), 531 died during their admission. In-hospital mortality was similar in those treated with warfarin (22%) or dabigatran (20%). Compared with warfarin users, the propensity score-adjusted risk ratio (95% confidence interval) of mortality in dabigatran users was 0.93 (0.62-1.37). Associations were similar across different ICB subtypes (intracerebral hemorrhage, subarachnoid hemorrhage, and subdural hematoma).

conclusionsIn this sample of AF patients with ICB on oral anticoagulants, dabigatran was not associated with higher in-hospital mortality compared with warfarin. Hence, reluctance to use dabigatran because of a lack of approved reversal agents is not supported by our results.

Indexed as

AgedAged, 80 and overAnticoagulantsAtrial FibrillationBenzimidazolesbeta-AlanineDabigatranFemaleHospital MortalityHumansIntracranial HemorrhagesMaleOdds RatioRetrospective StudiesWarfarinAnticoagulantsBenzimidazolesbeta-AlanineDabigatranWarfarinatrial fibrillationdabigatranintracranial hemorrhageswarfarin

Identifiers

PMID24994722
PMCPMC4116615

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.