Cryptogenic Stroke and Patent Foramen Ovale: Matched Cohorts in Observational Studies Remain Matched | Zendy

David HildickSmith | Zendy; Bernhard Meier | Zendy

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Cryptogenic Stroke and Patent Foramen Ovale: Matched Cohorts in Observational Studies Remain Matched

Author(s) -

David HildickSmith,

Bernhard Meier

Publication year - 2009

Publication title -

stroke

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 3.397

H-Index - 319

eISSN - 1524-4628

pISSN - 0039-2499

DOI - 10.1161/strokeaha.109.552638

Subject(s) - patent foramen ovale , medicine , observational study , stroke (engine) , cohort , cohort study , population , pediatrics , surgery , migraine , mechanical engineering , environmental health , engineering

To the Editor:Serena et al1 are to be congratulated on a comprehensively and carefully conducted trial of the incidence of stroke recurrence in cryptogenic stroke patients with and without patent foramen ovale (PFO). The study showed equal recurrent stroke rates at 2-years follow-up (≈6% in each group).Unfortunately, however, the conclusion they draw from their study, that patent foramen ovale is not a risk factor …

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