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Forame oval patente e acidente vascular cerebral isquêmico em jovens: associação causal ou estatística? / Patent foramen ovale and ischemic stroke in young people: statistical association or causal relation?
Negrão, Edson Marcio; Brandi, Ivar Viana; Nunes, Simone Vilela; Távora, Daniel Gurgel Fernandes; Nakayama, Mauro; Beraldo, Paulo Sergio Siebra.
Affiliation
  • Negrão, Edson Marcio; Hospital SARAH. Brasília. BR
  • Brandi, Ivar Viana; Hospital SARAH. Belo Horizonte. BR
  • Nunes, Simone Vilela; Hospital SARAH. Fortaleza. BR
  • Távora, Daniel Gurgel Fernandes; Hospital SARAH. Fortaleza. BR
  • Nakayama, Mauro; Hospital SARAH. Fortaleza. BR
  • Beraldo, Paulo Sergio Siebra; Hospital SARAH. Brasília. BR
Arq. bras. cardiol ; 88(5): 514-520, maio 2007. tab
Article in Portuguese | LILACS | ID: lil-453040
Responsible library: BR1.1
RESUMO

OBJETIVOS:

Determinar se há evidências de uma relação causal entre forame oval patente (FOP) e acidente vascular cerebral isquêmico (AVCI) criptogênico em jovens. Analisar essa relação à luz dos critérios de causalidade.

MÉTODOS:

Avaliaram-se, retrospectivamente, 168 pacientes jovens com AVCI, divididos em dois grupos criptogênico e de causa definida. Como parte da rotina, os pacientes foram submetidos a pesquisa de FOP por ecocardiograma transesofágico e/ou Doppler transcraniano, ambos associados ao teste de bolhas. Demonstrada a associação estatística univariada entre FOP e AVCI, procedeu-se a análise multivariada.

RESULTADOS:

Após análise multivariada, a associação FOP e AVCI criptogênico mostrou-se ainda estatisticamente significante, com razão de chance (RCajustada de 3,3 (IC95 por cento 1,5-7,4). O número total de lesões no encéfalo também apresentou associação significativa com o AVCI criptogênico (RCajustada= 0,4 IC95 por cento 0,2-0,9). A associação FOP e AVCI criptogênico satisfez todos os critérios de causalidade.

CONCLUSÃO:

A relação causal entre o FOP e o AVCI criptogênico em jovens é altamente provável. Esse fato deve ser considerado na decisão terapêutica.
ABSTRACT

OBJECTIVES:

To determine if there are evidences of a causal relation between patent foramen ovale (PFO) x cryptogenic ischemic stroke (IS) in the young population and to analyze this relation in terms of causal criteria.

METHODS:

A total of 168 young patients with IS was retrospectively evaluated and divided into two groups cryptogenic and with a defined cause. As a routine procedure, the patients underwent investigation of the PFO by means of transesophageal echocardiogram and/or transcranial Doppler sonography, both of them associated with the bubble test. Multivariate analysis was performed after demonstration of univariate statistical association between PFO x IS.

RESULTS:

After multivariate analysis, the association between PFO x cryptogenic IS was still statistically significant with odds ratio (adjusted OR = 3.3; 95 percent CI 1.5-7.4). The total number of cerebral lesions also presented a significant association with cryptogenic IS (adjusted OR = 0.4; 95 percent CI 0.2-0.9). The association between PFO and cryptogenic IS met all the causality criteria.

CONCLUSION:

The causal relation between PFO and cryptogenic IS in the young population is highly probable. This fact should be considered in the therapeutic decision.
Subject(s)
Full text: Available Collection: International databases Database: LILACS Main subject: Stroke / Foramen Ovale, Patent Type of study: Diagnostic study / Etiology study / Observational study / Prognostic study Limits: Adolescent / Adult / Female / Humans / Male Language: Portuguese Journal: Arq. bras. cardiol Journal subject: Cardiology Year: 2007 Document type: Article Affiliation country: Brazil Institution/Affiliation country: Hospital SARAH/BR
Full text: Available Collection: International databases Database: LILACS Main subject: Stroke / Foramen Ovale, Patent Type of study: Diagnostic study / Etiology study / Observational study / Prognostic study Limits: Adolescent / Adult / Female / Humans / Male Language: Portuguese Journal: Arq. bras. cardiol Journal subject: Cardiology Year: 2007 Document type: Article Affiliation country: Brazil Institution/Affiliation country: Hospital SARAH/BR
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