Evidence map›Paper›PMID 25052322›Full record

ArticleStroke2014

P-wave morphology and the risk of incident ischemic stroke in the Multi-Ethnic Study of Atherosclerosis.

Hooman Kamel, Elsayed Z Soliman, Susan R Heckbert, Richard A Kronmal, W T Longstreth, Saman Nazarian, Peter M Okin

Open access · bronzeAbstract 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 98 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
98citing papers in PubMed, 3 pooled it
6.9field-weighted citation impact, top 2% 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

98 citing papers in PubMed, 3 syntheses or guidelines pooled it, 158 citations in OpenAlex.

  1. Pooled it
  2. Electrocardiographic Predictors of Atrial Fibrillation.Medical sciences (Basel, Switzerland) · 2023
    Pooled it
  3. Predictive value of P wave terminal force in lead V1 for atrial fibrillation: A meta-analysis.Annals of noninvasive electrocardiology : the official journal of the International Society for Holter and Noninvasive Electrocardiology, Inc · 2020
    Pooled it
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  6. Effect of intensive blood pressure lowering on left atrial remodeling in the SPRINT.Hypertension research : official journal of the Japanese Society of Hypertension · 2021
    Trial
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  11. Article
  12. Histological evaluation of clinically defined atrial cardiomyopathy stages and their association with atrial fibrillation burden under continuous monitoring for a 2.5-year follow-up.Europace : European pacing, arrhythmias, and cardiac electrophysiology : journal of the working groups on cardiac pacing, arrhythmias, and cardiac cellular electrophysiology of the European Society of Cardiology · 2026
    Article
  13. Article
  14. Article
  15. Electrocardiographic Markers of Atrial Cardiomyopathy: Strengths and Limits of P-Wave-Based Assessment.Annals of noninvasive electrocardiology : the official journal of the International Society for Holter and Noninvasive Electrocardiology, Inc · 2026
    Article
  16. Association of P-Wave Parameters With Left Atrial Hemodynamics in Atrial Cardiomyopathy.Annals of noninvasive electrocardiology : the official journal of the International Society for Holter and Noninvasive Electrocardiology, Inc · 2026
    Article
  17. Article
  18. Article
  19. Electrocardiogram markers predicting ischemic stroke after acute coronary syndrome.International journal of cardiology. Cardiovascular risk and prevention · 2025
    Article
  20. Prevalence, associated factors, and prognostic value of P wave abnormality in patients with coronary artery disease.International journal of cardiology. Cardiovascular risk and prevention · 2025
    Article

38 more citing papers are in PubMed but not listed here.

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

7 authors at 2 institutions in 1 country.

Hooman KamelDepartment of Neurology (H.K.) and Division of Cardiology (P.M.O.), Weill Cornell Medical College, New York, NY; Epidemiological Cardiology Research Center, Wake Forest University School of Medicine, Winston-Salem, NC (E.Z.S.); Departments of Epidemiology (S.R.H., W.T.L.), Biostatistics (R.A.K.), and Neurology (W.T.L.), University of Washington, Seattle; and Division of Cardiology, Johns Hopkins University, Baltimore, MD (S.N.). hok9010@med.cornell.edu.
Elsayed Z SolimanDepartment of Neurology (H.K.) and Division of Cardiology (P.M.O.), Weill Cornell Medical College, New York, NY; Epidemiological Cardiology Research Center, Wake Forest University School of Medicine, Winston-Salem, NC (E.Z.S.); Departments of Epidemiology (S.R.H., W.T.L.), Biostatistics (R.A.K.), and Neurology (W.T.L.), University of Washington, Seattle; and Division of Cardiology, Johns Hopkins University, Baltimore, MD (S.N.).
Susan R HeckbertDepartment of Neurology (H.K.) and Division of Cardiology (P.M.O.), Weill Cornell Medical College, New York, NY; Epidemiological Cardiology Research Center, Wake Forest University School of Medicine, Winston-Salem, NC (E.Z.S.); Departments of Epidemiology (S.R.H., W.T.L.), Biostatistics (R.A.K.), and Neurology (W.T.L.), University of Washington, Seattle; and Division of Cardiology, Johns Hopkins University, Baltimore, MD (S.N.).
Richard A KronmalDepartment of Neurology (H.K.) and Division of Cardiology (P.M.O.), Weill Cornell Medical College, New York, NY; Epidemiological Cardiology Research Center, Wake Forest University School of Medicine, Winston-Salem, NC (E.Z.S.); Departments of Epidemiology (S.R.H., W.T.L.), Biostatistics (R.A.K.), and Neurology (W.T.L.), University of Washington, Seattle; and Division of Cardiology, Johns Hopkins University, Baltimore, MD (S.N.).
W T LongstrethDepartment of Neurology (H.K.) and Division of Cardiology (P.M.O.), Weill Cornell Medical College, New York, NY; Epidemiological Cardiology Research Center, Wake Forest University School of Medicine, Winston-Salem, NC (E.Z.S.); Departments of Epidemiology (S.R.H., W.T.L.), Biostatistics (R.A.K.), and Neurology (W.T.L.), University of Washington, Seattle; and Division of Cardiology, Johns Hopkins University, Baltimore, MD (S.N.).
Saman NazarianDepartment of Neurology (H.K.) and Division of Cardiology (P.M.O.), Weill Cornell Medical College, New York, NY; Epidemiological Cardiology Research Center, Wake Forest University School of Medicine, Winston-Salem, NC (E.Z.S.); Departments of Epidemiology (S.R.H., W.T.L.), Biostatistics (R.A.K.), and Neurology (W.T.L.), University of Washington, Seattle; and Division of Cardiology, Johns Hopkins University, Baltimore, MD (S.N.).
Peter M OkinDepartment of Neurology (H.K.) and Division of Cardiology (P.M.O.), Weill Cornell Medical College, New York, NY; Epidemiological Cardiology Research Center, Wake Forest University School of Medicine, Winston-Salem, NC (E.Z.S.); Departments of Epidemiology (S.R.H., W.T.L.), Biostatistics (R.A.K.), and Neurology (W.T.L.), University of Washington, Seattle; and Division of Cardiology, Johns Hopkins University, Baltimore, MD (S.N.).
University of Washington · USWake Forest University · US

Funding

Institute for Clinical and Translational Research (UL1)UL1RR025005 · NCRR · JOHNS HOPKINS UNIVERSITY · PI FORD, DANIEL ERNEST · 2007 to 2011
$75.8M
Institute for Clinical and Translational ResearchUL1TR001079 · NCATS · JOHNS HOPKINS UNIVERSITY · PI FORD, DANIEL ERNEST · 2013 to 2017
$60.1M
CTSA INFRASTRUCTURE FOR PEDIATRIC RESEARCHUL1RR024156 · NCRR · COLUMBIA UNIVERSITY HEALTH SCIENCES · PI GINSBERG, HENRY N · 2006 to 2011
$53.0M
Cigarette Smoke and Susceptibility to Influenza InfectionR01HL095163 · NHLBI · UNIV OF NORTH CAROLINA CHAPEL HILL · PI JASPERS, ILONA, NOAH, TERRY L · 2009 to 2013
$2.0M
Adjunctive Use of Apyrase to Fibrinolytic TherapyR44HL095169 · NHLBI · APT THERAPEUTICS, INC. · PI CHEN, RIDONG · 2012 to 2013
$1.3M
Atrial Fibrillation Precursors May Be Novel Stroke Risk FactorsK23NS082367 · NINDS · WEILL MEDICAL COLL OF CORNELL UNIV · PI KAMEL, HOOMAN · 2013 to 2017
$937k
SUBCLINICAL CARDIOVASCULAR DISEASE STUDYN01HC095166 · HC · UNIVERSITY OF VERMONT &ST AGRIC COLLEGE · PI TRACY, RUSSELL P · 1999 to 2001
$758k
SUBCLINICAL CARDIOVASCULAR DISEASE STUDY-FIELD CENTERN01HC095162 · HC · JOHNS HOPKINS UNIVERSITY · PI SZKLO, MOYSES A · 1999 to 2000
$694k
SUBCLINICAL CARDIOVASCULAR DISEASE STUDY--FIELD CENTERN01HC095161 · HC · COLUMBIA UNIVERSITY HEALTH SCIENCES · PI SHEA, STEVEN · 1999 to 2001
$642k
SUBCLINICAL CARDIOVASCULAR DISEASE STUDY--FIELD CENTERN01HC095165 · HC · WAKE FOREST UNIVERSITY · PI BURKE, GREGORY L · 1999 to 2001
$616k
SUBCLINICAL CARDIOVASCULAR DISEASE STUDY--FIELD CENTERN01HC095160 · HC · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI SAAD, MOHAMMED F · 1999 to 2001
$592k
SUBCLINICAL CARDIOVASCULAR DISEASE STUDY-FIELD CENTERN01HC095164 · HC · NORTHWESTERN UNIVERSITY · PI LIU, KIANG JOHN · 1999 to 2001
$511k
NCATS NIH HHS UL1 TR001079NCRR NIH HHS UL1 RR024156NCRR NIH HHS UL1RR024156NCRR NIH HHS UL1 RR025005NCRR NIH HHS UL1RR025005NHLBI NIH HHS N01 HC095159NHLBI NIH HHS N01 HC095160NHLBI NIH HHS N01 HC095161NHLBI NIH HHS N01 HC095162NHLBI NIH HHS N01 HC095163NHLBI NIH HHS N01 HC095164NHLBI NIH HHS N01 HC095165NHLBI NIH HHS N01 HC095166NHLBI NIH HHS N01 HC095167NHLBI NIH HHS N01 HC095168NHLBI NIH HHS N01 HC095169NINDS NIH HHS K23 NS082367NINDS NIH HHS K23NS082367
6 · The paper itself

Abstract

background and purposeEmerging data suggest that left atrial disease may cause ischemic stroke in the absence of atrial fibrillation or flutter (AF). If true, this condition may provide a cause for many strokes currently classified as cryptogenic.

methodsAmong 6741 participants in the Multi-Ethnic Study of Atherosclerosis who were free of clinically apparent cerebrovascular or cardiovascular disease (including AF) at baseline, we examined the association between markers of left atrial abnormality on a standard 12-lead ECG-specifically P-wave area, duration, and terminal force in lead V1-and the subsequent risk of ischemic stroke while accounting for incident AF.

resultsDuring a median follow-up of 8.5 years, 121 participants (1.8%) had a stroke and 541 participants (8.0%) were diagnosed with AF. In Cox proportional hazards models adjusting for potential baseline confounders, P-wave terminal force in lead V1 was more strongly associated with incident stroke (hazard ratio per 1 SD increase, 1.21; 95% confidence interval, 1.02-1.44) than with incident AF (hazard ratio per 1 SD, 1.11; 95% confidence interval, 1.03-1.21). The association between P-wave terminal force in lead V1 and stroke was robust in numerous sensitivity analyses accounting for AF, including analyses that excluded those with any incident AF or modeled any incident AF as having been present from baseline.

conclusionsWe found an association between baseline P-wave morphology and incident stroke even after accounting for AF. This association may reflect an atrial cardiopathy that leads to stroke in the absence of AF.

Indexed as

AgedAged, 80 and overAlgorithmsAtherosclerosisElectrocardiographyEthnicityFemaleFollow-Up StudiesHumansIncidenceIschemiaMaleMiddle AgedProportional Hazards ModelsProspective StudiesRisk Factorselectrocardiographyembolismstroke

Identifiers

PMID25052322
PMCPMC4146624
OpenAlexW2061546208

What OpenQuestion holds

Textmetadata
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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.