a mobilidade do septum primum não depende do diâmetro do forame oval em fetos normais mobility of the septum primum does not depend on the foramen ovale diameter in normal fetuses

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ID: 227997
2004
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Abstract
OBJETIVO: Testar a hipótese de que existe correlação entre o diâmetro máximo diastólico do forame oval e o índice de excursão do septum primum em fetos normais. MÉTODOS: Foram examinados, por ecocardiografia, 102 fetos normais de gestantes com idades gestacionais entre 20 e 40 semanas. O diâmetro do forame oval e a excursão máxima do septum primum foram medidos num corte de 4 câmaras. Na análise dos dados utilizou-se o coeficiente de correlação de Pearson. RESULTADOS: A média do forame oval foi de 5,06 ± 1,29 mm; a da excursão máxima do septum primum de 5,42 ± 1,41 mm; a do átrio esquerdo 11,47 ± 2,76 mm e a do índice de excursão 0,48 ± 0,09. A relação média FO/IE foi de 11,35 ± 3,94 mm. Não houve correlação FO/IE (r = -0,03) e observou-se correlação fraca do forame oval com o átrio esquerdo (r = 0,031) e com a excursão do septum primum (r = 0,21). CONCLUSÃO: A mobilidade do septum primum não depende do diâmetro do forame oval em fetos normais, sugerindo que as modificações da sua excursão diastólica não decorram do grau de abertura interatrial.
OBJECTIVE: To test the hypothesis that a correlation exists between the maximum foramen ovale diastolic diameter and the excursion index (EI) of the septum primum in normal fetuses. METHODS: One hundred and two normal fetuses with gestational ages ranging from 20 to 40 weeks were submitted to echocardiography. The foramen ovale diameter and the "maximal excursion" of the septum primum were measured in a 4-chamber view. The data were analyzed by Pearson's correlation coefficient. RESULTS: The mean foramen ovale (FO) diameter was 5.06 ± 1.29 mm; the maximal excursion of the septum primum was 5.42 ± 1.41 mm; the left atrium diameter 11.47 ± 2.76 mm; the septum primum "excursion index" was 0.48 ± 0.09. Mean FO/EI ratio was 11.35 ± 3.94 mm. No FO/EI correlation (r = -0.03) existed, and a weak foramen ovale/left atrium correlation (r = 0.31) was observed, as well as a weak foramen ovale/excursion of septum primum correlation (r = 0.21). CONCLUSION: Septum primum mobility does not depend on the foramen ovale diameter in normal fetuses, suggesting that the modifications of its diastolic displacement is not influenced by the size of the interatrial opening.
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zielinsky2004arquivosa Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors ;Paulo Zielinsky;Marcelo Sallum;Fabíola Satler;Eduardo Ioschpe Gus;Luiz Henrique Nicoloso;João Luiz Mânica;Antônio Luiz Piccoli Jr
Journal revista cubana de ciencias informáticas
Year 2004
DOI
10.1590/S0066-782X2004001600005
URL
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0066-782X2004001600005
Keywords
fetal echocardiography

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