Comparison of right-to-left shunt characteristics in cryptogenic embolic ischemic stroke and non-cardioembolic ischemic stroke

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MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade Federal do Paraná (UFPR)-
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.contributorUniversidade Federal de Mato Grosso do Sul (UFMS)-
Autor(es): dc.creatorScavasine, Valeria Cristina-
Autor(es): dc.creatorChamma, Jamileh Ferreira-
Autor(es): dc.creatorBazan, Rodrigo-
Autor(es): dc.creatorBraga, Gabriel Pereira-
Autor(es): dc.creatorLange, Marcos Christiano-
Autor(es): dc.creatorde Hiroki Flumignan Zétola, Viviane-
Data de aceite: dc.date.accessioned2025-08-21T17:04:09Z-
Data de disponibilização: dc.date.available2025-08-21T17:04:09Z-
Data de envio: dc.date.issued2022-04-29-
Data de envio: dc.date.issued2022-04-29-
Data de envio: dc.date.issued2020-12-31-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1590/0004-282X-ANP-2020-0430-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/229906-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/229906-
Descrição: dc.descriptionBackground: Patent foramen ovale (PFO) has been considered a potential mechanism of embolic stroke of undetermined origin. Objective: The aim of the present study was to identify the features of the right-to-left shunt (RLS) in patients with undetermined embolic ischemic stroke and compare them with those of patients with non-cardioembolic ischemic stroke. Methods: A retrospective study was conducted with 168 patients with stroke and RLS separated into the following two groups: the undetermined embolic stroke group (UES group) and non-cardioembolic stroke group (NCES group). All patients were assessed by transcranial Doppler to evaluate the presence and quantification of microembolic signals (MES) at rest and under Valsalva maneuver. Results: Of all patients evaluated in the current study, 96 were included in the UES group and 72 in the NCES group. In the UES group, 65 patients had RLS with ≥10 MES (67.7%), which was higher than that observed in the NCES group (51.4%, p=0.038). According to the moment of the cardiac cycle, 75 patients (78.1%) in the UES group had a positive test at rest compared to 42 (58.3%) in the NCES group (p=0.007). Conclusions: The current study demonstrated that almost 70% of patients with undetermined embolic stroke and PFO presented a large RLS and more than 75% had RLS at rest. These findings suggest that the size of the shunt should be taken into account when evaluating whether PFO could be a possible mechanism underlying cryptogenic stroke.-
Descrição: dc.descriptionUniversidade Federal do Paraná Hospital de Clínicas Departamento de Neurologia, PR-
Descrição: dc.descriptionUniversidade Estadual Paulista “Júlio de Mesquita Filho” Departamento de Neurologia, SP-
Descrição: dc.descriptionUniversidade Federal de Mato Grosso do Sul Departamento de Neurologia, MS-
Descrição: dc.descriptionUniversidade Estadual Paulista “Júlio de Mesquita Filho” Departamento de Neurologia, SP-
Formato: dc.format859-863-
Idioma: dc.languageen-
Relação: dc.relationArquivos de Neuro-Psiquiatria-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectDoppler-
Palavras-chave: dc.subjectEmbolism-
Palavras-chave: dc.subjectForamen ovale-
Palavras-chave: dc.subjectIschemic stroke-
Palavras-chave: dc.subjectParadoxical-
Palavras-chave: dc.subjectPatent-
Palavras-chave: dc.subjectStroke-
Palavras-chave: dc.subjectTranscranial-
Palavras-chave: dc.subjectUltrasonography-
Título: dc.titleComparison of right-to-left shunt characteristics in cryptogenic embolic ischemic stroke and non-cardioembolic ischemic stroke-
Título: dc.titleComparação das características do shunt direita-esquerda em pacientes com AVC isquêmico criptogênio e AVC não cardioembólico-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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