Evidence map›Paper›PMID 40242852›Full record

Observational studyStroke2025

Burden of Modifiable Risk Factors in Young-Onset Cryptogenic Ischemic Stroke by High-Risk Patent Foramen Ovale.

Jukka Putaala, Nicolas Martinez-Majander, Michelle Leppert, Lauri Tulkki, Jani Pirinen, Heli Tolppanen, Tomi Sarkanen, Marko Virtanen, Nina Jaakonmäki, Pekka Jäkälä and 34 more

Registry-linked trialAbstract readMulticenter StudyObservational Study
In one paragraph

Observational study in Stroke, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT01934725 (Searching for Explanations for Cryptogenic Stroke in the Young), which is not on this map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing 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.

NCT01934725 active not recruitingnot on this map

Searching for Explanations for Cryptogenic Stroke in the Young: Revealing the Etiology, Triggers, and Outcome (SECRETO)

TypeobservationalSponsorSECRETO Study ConsortiumRan2013 to 2031Enrolled1,200ConditionsBrain Infarction, Ischemic Stroke, Thrombosis, Foramen Ovale, Patent
3 · Its place in the literature

Who cites it

12 citing papers in PubMed.

  1. Article
  2. Article
  3. Review
  4. Article
  5. Article
  6. Cardiac Organ Damage in Young Adults with Cryptogenic Ischaemic Stroke: The SECRETO Study.High blood pressure & cardiovascular prevention : the official journal of the Italian Society of Hypertension · 2026
    Article
  7. Article
  8. Article
  9. ESO annual stroke evidence update 2025.European stroke journal · 2026
    Review
  10. Article
  11. Article
  12. 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

44 authors.

Jukka PutaalaDepartment of Neurology (J. Putaala, N.M.-M., L.T.), Helsinki University Hospital and University of Helsinki, Finland.ORCID 0000-0002-6630-6104
Nicolas Martinez-MajanderDepartment of Neurology (J. Putaala, N.M.-M., L.T.), Helsinki University Hospital and University of Helsinki, Finland.ORCID 0000-0001-8489-7051
Michelle LeppertDepartment of Neurology, University of Colorado School of Medicine, Aurora (M.L.).ORCID 0000-0002-0679-7634
Lauri TulkkiDepartment of Neurology (J. Putaala, N.M.-M., L.T.), Helsinki University Hospital and University of Helsinki, Finland.ORCID 0000-0003-2823-8574
Jani PirinenDepartment of Cardiology, Heart and Lung Center (J. Pirinen, H.T., J.S.), Helsinki University Hospital and University of Helsinki, Finland.
Heli TolppanenDepartment of Cardiology, Heart and Lung Center (J. Pirinen, H.T., J.S.), Helsinki University Hospital and University of Helsinki, Finland.ORCID 0000-0002-3364-8554
Tomi SarkanenDepartment of Neurology, Tampere University Hospital, Wellbeing Services County of Pirkanmaa, and Faculty of Medicine and Health Technology, Tampere University, Finland (T.S.).ORCID 0000-0001-8815-2807
Marko VirtanenHeart Hospital, Tampere University Hospital, Finland (M.V.).ORCID 0000-0001-9674-0772
Nina JaakonmäkiNeurocenter Neurology (N.J., P.J.), Kuopio University Hospital, Finland.ORCID 0000-0002-4965-3163
Pekka JäkäläNeurocenter Neurology (N.J., P.J.), Kuopio University Hospital, Finland.ORCID 0000-0002-8410-6915
Marja HedmanHeart Center (M.H.), Kuopio University Hospital, Finland.ORCID 0000-0003-1318-8287
Petra RedforsDepartment of Neurology, Sahlgrenska University Hospital and Department of Clinical Neuroscience, Institute of Neuroscience and Physiology (P.R., T.T.), Sahlgrenska Academy at University of Gothenburg, Sweden.ORCID 0000-0001-5956-4255
Odd Bech-HanssenDepartment of Clinical Physiology, Institute of Medicine (O.B.-H.), Sahlgrenska Academy at University of Gothenburg, Sweden.ORCID 0000-0002-9572-9819
Ulla JunttolaDepartment of Neurology, Oulu University Hospital and University of Oulu, Finland (U.J., J.H.).ORCID 0000-0002-2101-9582
Juha HuhtakangasDepartment of Neurology, Oulu University Hospital and University of Oulu, Finland (U.J., J.H.).ORCID 0000-0001-7143-519X
Pauli YlikotilaDepartment of Neurology, Turku University Hospital and University of Turku, Finland (P.Y.).
Riikka LautamäkiHeart Center, Turku University Hospital, Finland (R. Lautamäki).
Ulf SchminkeDepartment of Neurology (U.S., B.v.S.), University Medicine Greifswald, Germany.ORCID 0000-0002-7508-3176
Bettina von SarnowskiDepartment of Neurology (U.S., B.v.S.), University Medicine Greifswald, Germany.ORCID 0000-0002-1458-476X
Raila BuschDepartment of Internal Medicine B (Cardiology) (R.B.), University Medicine Greifswald, Germany.
Nilüfer YesilotDepartment of Neurology (N.Y.), Istanbul University Faculty of Medicine, Turkey.ORCID 0000-0002-9655-9487
Mine SezginDepartment of Cardiology (M.S.), Istanbul University Faculty of Medicine, Turkey.ORCID 0000-0001-6525-0658
Ulrike Waje-AndreassenDepartment of Neurology (U.W.-A.), Haukeland University Hospital, Bergen, Norway.ORCID 0000-0003-3240-6040
Sahrai SaeedDepartment of Heart Disease (S.S.), Haukeland University Hospital, Bergen, Norway.ORCID 0000-0003-4041-5019
Ana Catarina FonsecaHospital Santa Maria, Faculty of Medicine, University of Lisbon, Portugal (A.C.F., A. Paula).ORCID 0000-0001-6913-5526
André PaulaHospital Santa Maria, Faculty of Medicine, University of Lisbon, Portugal (A.C.F., A. Paula).ORCID 0000-0002-5159-0237
Laura Amaya PascasioDepartment of Neurology, Torrecardenas University Hospital, University of Almería, Spain (L.A.P., P.M.-S.).ORCID 0000-0003-1162-4209
Patricia Martínez-SánchezDepartment of Neurology, Torrecardenas University Hospital, University of Almería, Spain (L.A.P., P.M.-S.).ORCID 0000-0003-1945-4435
Janika KõrvDepartment of Neurology and Neurosurgery (J.K.), University of Tartu, Estonia.ORCID 0000-0002-6074-0727
Piibe MudaDepartment of Cardiology (P.M.), University of Tartu, Estonia.
Phillip FerdinandNeurosciences (P.F.), University Hospitals of North Midlands NHS Trust, Stoke-on-Trent, United Kingdom.
Cheryl OxleyCardiac Physiology Services (C.O.), University Hospitals of North Midlands NHS Trust, Stoke-on-Trent, United Kingdom.
Diana ZakarkaitėFaculty of Medicine, Center of Neurology, Vilnius University, Lithuania (D.Z., K.R.).ORCID 0000-0003-3299-7135
Kristina RyliškienėFaculty of Medicine, Center of Neurology, Vilnius University, Lithuania (D.Z., K.R.).ORCID 0000-0001-9596-1733
Alessandro PezziniDepartment of Medicine and Surgery, University of Parma and Stroke Care Program, Department of Emergency, Parma University Hospital, Italy (A. Pezzini).ORCID 0000-0001-8629-3315
Carlo Mario LombardiCardiology, ASST Spedali Civili Brescia and Department of Medical and Surgical Specialties, Radiological Sciences, and Public Health, University of Brescia, Italy (C.M.L.).ORCID 0000-0002-7120-5877
Radim LíčeníkNorth West Anglia NHS Foundation Trust, Acute Stroke Centre, United Kingdom (R. Licenik).
Marialuisa ZeddeNeurology Unit, Stroke Unit (M.Z.), Azienda Unità Sanitaria Locale-IRCCS Reggio Emilia, Italy.ORCID 0000-0001-7530-818X
Teresa GrimaldiCardiology Unit (T.G.), Azienda Unità Sanitaria Locale-IRCCS Reggio Emilia, Italy.
Georgios TsivgoulisSecond Department of Neurology, National & Kapodistrian University of Athens, "Attikon" University Hospital, Greece (G.T.).ORCID 0000-0002-0640-3797
Juha SinisaloDepartment of Cardiology, Heart and Lung Center (J. Pirinen, H.T., J.S.), Helsinki University Hospital and University of Helsinki, Finland.ORCID 0000-0002-0169-5137
Eva GerdtsDepartment of Clinical Science, Center for Research on Cardiac Disease in Women, University of Bergen, Norway (E.G.).ORCID 0000-0003-4109-2311
Turgut TatlisumakDepartment of Neurology, Sahlgrenska University Hospital and Department of Clinical Neuroscience, Institute of Neuroscience and Physiology (P.R., T.T.), Sahlgrenska Academy at University of Gothenburg, Sweden.ORCID 0000-0002-2430-8988
SECRETO Study Group

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe incidence of young-onset ischemic stroke is rising, driven by cryptogenic ischemic stroke (CIS) and patients without vascular risk factors. This study examines the burden and associations of modifiable traditional, nontraditional, and female sex-specific risk factors with young-onset CIS, stratified by clinically relevant patent foramen ovale (PFO), defined by high-risk features of atrial septal aneurysm or large right-to-left shunt.

methodsWe enrolled consecutive patients aged 18 to 49 years with recent CIS and frequency-matched stroke-free controls of the same age and sex from 19 European sites. Logistic regression assessed the association of risk factor counts (12 traditional, 10 nontraditional, 5 female sex-specific) and individual risk factors, stratified by PFO. Analyses were stratified by sex and age (18-39 and 40-49 years), with computation of population-attributable risk.

resultsWe included 523 patients (median age, 41 years; 47.3% women; 196 [37.5%] with PFO) and 523 controls. In patients with CIS without PFO, each additional traditional (odds ratio, 1.417 [95% CI, 1.282-1.568]), nontraditional (odds ratio, 1.702 [95% CI, 1.338-2.164]), and female sex-specific risk factor (odds ratio, 1.700 [95% CI, 1.107.1-2.611]) increased CIS risk. For patients with CIS with PFO, each traditional risk factor increased the risk (odds ratio, 1.185 [1.057-1.328]), but only nontraditional risk factors remained significant when fully adjusted (odds ratio, 2.656 [2.036-3.464]). Population-attributable risks for CIS without PFO were 64.7%, 26.5%, and 18.9% for traditional, nontraditional, and female sex-specific risk factors. For CIS with PFO, population-attributable risks were 33.8%, 49.4%, and 21.8%, respectively. Migraine with aura was the most significant contributor, with population-attributable risks of 45.8% for CIS with PFO and 22.7% for CIS without PFO, showing a stronger impact in women.

conclusionsDespite the initial cryptogenic label of these strokes, traditional risk factors significantly contribute to CIS without PFO, while nontraditional factors seem more critical for CIS with PFO. Migraine with aura plays a prominent role in young-onset CIS development, particularly in women. REGISTRATION: URL: https://www.clinicaltrials.gov; Unique identifier: NCT01934725.

Indexed as

Foramen Ovale, PatentIschemic StrokeAdolescentAdultAge of OnsetFemaleHumansMaleMiddle AgedRisk FactorsYoung Adultforamen ovale, patentheart septal defectsischemic strokemigraine with aurarisk factors

Identifiers

PMID40242852
PMCPMC12101884

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Registered trials

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