Evidence map›Paper›PMID 42663055›Full record

SynthesisStroke2026

Prevalence and Clinical Relevance of Antiphospholipid Antibodies in Ischemic Stroke: A Systematic Review and Meta-Analysis.

Nathan W Watson, Syed Bukhari, Sina Rashedi, Mariana Pfeferman, Francisco Ujueta, Bassil Bacare, Brittany N Weber, Mehrdad Zarghami, Yogendra Kanthi, Eric A Secemsky and 12 more

Abstract readSystematic ReviewMeta-Analysis
In one paragraph

Synthesis in Stroke, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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

0 citing papers in PubMed.

No citing paper in PubMed yet.

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

22 authors.

Nathan W Watson *Department of Medicine (N.W.W.), Brigham and Women's Hospital, Harvard Medical School, Boston, MA.
Syed Bukhari *Division of Cardiology, Department of Medicine, Johns Hopkins University, Baltimore, MD (S.B.).ORCID 0000-0002-0244-3716
Sina RashediDivision of Cardiovascular Medicine, Department of Medicine (S.R., M.P., S.Z.G., G.P., B. Bikdeli), Brigham and Women's Hospital, Harvard Medical School, Boston, MA.ORCID 0000-0003-0146-5611
Mariana PfefermanDivision of Cardiovascular Medicine, Department of Medicine (S.R., M.P., S.Z.G., G.P., B. Bikdeli), Brigham and Women's Hospital, Harvard Medical School, Boston, MA.ORCID 0000-0002-7486-4915
Francisco UjuetaDivision of Cardiovascular Medicine, Vanderbilt University Medical Center, Nashville, TN (F.U.).ORCID 0000-0002-5346-7996
Bassil BacareDivision of Cardiology, Thrombosis Research Group, Brigham and Women's Hospital, Harvard Medical School, Boston, MA (S.R., M.P., B. Bacare, S.Z.G., G.P., B. Bikdeli).
Brittany N WeberDivision of Cardiology, UT Southwestern Medical Center, Dallas, TX (B.N.W.).ORCID 0000-0002-0177-2091
Mehrdad ZarghamiDepartment of Internal Medicine, Jamaica Hospital Medical Center, Queens, NY (M.Z.).ORCID 0000-0003-0549-951X
Yogendra KanthiSection of Vascular Thrombosis & Inflammation, Division of Intramural Research, National Heart, Lung, and Blood Institute, Bethesda, MD (Y.K.).ORCID 0000-0002-5660-5194
Eric A SecemskyRichard A. and Susan F. Smith Center for Outcomes Research in Cardiology, Department of Medicine, Beth Israel Deaconess Medical Center, Boston, MA (E.A.S.).ORCID 0000-0003-3861-3163
Jean M ConnorsDivision of Hematology (J.M.C.), Brigham and Women's Hospital, Harvard Medical School, Boston, MA.ORCID 0000-0001-6445-582X
Geoffrey D BarnesDivision of Cardiovascular Medicine, Frankel Cardiovascular Center, University of Michigan, Ann Arbor (G.D.B.).ORCID 0000-0002-6532-8440
Sacha UljonDepartment of Pathology, Massachusetts General Hospital, Mass General Brigham, Boston (S.U.).ORCID 0000-0001-5190-6652
Samuel Z GoldhaberDivision of Cardiovascular Medicine, Department of Medicine (S.R., M.P., S.Z.G., G.P., B. Bikdeli), Brigham and Women's Hospital, Harvard Medical School, Boston, MA.ORCID 0000-0002-6450-0448
Jeffrey I WeitzMcMaster University, Thrombosis and Atherosclerosis Research Institute, Hamilton Health Sciences, ON, Canada (J.I.W.).ORCID 0000-0002-1092-7550
Karen H CostenbaderDivision of Rheumatology, Inflammation and Immunity, Department of Medicine (K.H.C.), Brigham and Women's Hospital, Harvard Medical School, Boston, MA.ORCID 0000-0002-8972-9388
Harlan M KrumholzYNHH/Yale Center for Outcomes Research and Evaluation (CORE), New Haven, CT (H.M.K., B. Bikdeli).ORCID 0000-0003-2046-127X
Gregory PiazzaDivision of Cardiovascular Medicine, Department of Medicine (S.R., M.P., S.Z.G., G.P., B. Bikdeli), Brigham and Women's Hospital, Harvard Medical School, Boston, MA.ORCID 0000-0002-1722-2983
Mary CushmanDivision of Hematology and Oncology, Department of Medicine, Larner College of Medicine at the University of Vermont, Burlington, VT (M.C.).ORCID 0000-0002-7871-6143
Christopher D AndersonDepartment of Neurology (C.D.A.), Brigham and Women's Hospital, Harvard Medical School, Boston, MA.ORCID 0000-0002-0053-2002
Mitchell S V ElkindDepartment of Neurology, Vagelos College of Physicians and Surgeons, Columbia University, NY (M.S.V.E.).ORCID 0000-0003-2562-1156
Behnood BikdeliDivision of Cardiovascular Medicine, Department of Medicine (S.R., M.P., S.Z.G., G.P., B. Bikdeli), Brigham and Women's Hospital, Harvard Medical School, Boston, MA.ORCID 0000-0003-1428-879X

Funding

Human Translational Studies of Vascular Thrombosis and InflammationZIAHL006262 · NHLBI · NATIONAL HEART, LUNG, AND BLOOD INSTITUTE · PI KANTHI, YOGENDRA · 2021 to 2025
$4.7M
Intramural NIH HHS ZIA HL006262
6 · The paper itself

Abstract

backgroundAntiphospholipid antibodies (aPL) are associated with an increased risk of thrombosis. However, individual studies have reported conflicting findings regarding the prevalence of aPL in patients with ischemic stroke and their association with first or recurrent events.

methodsSystematic searches of PubMed and Embase through May 13, 2025 were conducted to identify case-control, cohort, or cross-sectional studies investigating 3 questions related to aPL seropositivity (defined as positivity for either immunoglobulin G/immunoglobulin M anticardiolipin antibody, immunoglobulin G/immunoglobulin M anti-β2 glycoprotein I antibody, or a lupus anticoagulant): (1) the prevalence of aPL seropositivity among individuals with ischemic stroke; (2) the association between aPL seropositivity and the risk of first ischemic stroke; and (3) the association between aPL seropositivity and the risk of recurrent ischemic stroke. Random-effects models with inverse weighting were used to calculate pooled prevalences and odds ratios (OR) with 95% CIs. Risk of bias was assessed using the ROBINS-I tool.

resultsA total of 52 studies were included (40 case-control, 12 cohort). The pooled prevalence of seropositivity for any aPL among patients with ischemic stroke (51 studies, 9438 patients) was 19.1% (95% CI, 15.4%-23.0%;

conclusionsSeropositivity for any aPL was present in nearly 1-in-5 patients with ischemic stroke and was associated with increased odds of ischemic stroke at presentation.

Indexed as

Antibodies, AntiphospholipidBrain IschemiaIschemic StrokeAntibodies, AnticardiolipinClinical RelevanceHumansAntibodies, AnticardiolipinAntibodies, Antiphospholipidantibodies, antiphospholipidantiphospholipid syndromeischemic strokeprevalencethrombosis

Identifiers

PMID42663055
PMCPMC13528693

What Socratic 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 Socratic graph.