Fetal acidemia prediction through short-term variation assessed by antepartum computerized cardiotocography in pregnant women with hypertension syndrome

Fetal acidemia prediction through short-term variation assessed by antepartum computerized cardiotocography in pregnant women with hypertension syndrome

Autor Garcia, Guaraci Silveira Autor UNIFESP Google Scholar
Neto, Corintio Mariani Google Scholar
Araujo, Edward Autor UNIFESP Google Scholar
Garcia, Ricardo Lima Autor UNIFESP Google Scholar
Machado Nardozza, Luciano Marcondes Autor UNIFESP Google Scholar
Moron, Antonio Fernades Autor UNIFESP Google Scholar
Instituição Hosp & Maternity Leonor Mendes Barros
Universidade Federal de São Paulo (UNIFESP)
Resumo Objective To establish a cut-off value for short-term variation (STV) assessed by computerized cardiotocography (CTG) as a single parameter in the prediction of acidemia at birth.Methods Cross-sectional study performed on 41 single gestations with diagnosis of hypertension syndrome after the 27th week and delivered by elective cesarean. Computerized CTG examinations were 20-min long at most, and were performed up to 24 before delivery. Immediately after delivery, blood samples were collected from the umbilical cord vessels to determine pH. To establish a cut-off value, a receiver operator characteristics (ROC) curve was created with STV as independent variable and umbilical artery pH as dependent variable. Later, sensitivity (S), specificity (E), positive predictive value (PPV), and negative predictive value (NPV) were calculated for the cut-off value obtained.Results A significant correlation was found between STV and acidemia at birth, and STV values <= 5.25 ms were significantly capable of predicting acidemia (pH < 7.20) (S = 57.1%; E = 85.2%; PPV = 66.6%; NPV = 79.3%; P < 0.05).Conclusions STV values of <= 5.25 ms could predict acidemia at birth in pregnant women with hypertension syndrome.
Palavra-chave cardiotocography
acid-base equilibrium
gestational hypertension
Idioma Inglês
Data de publicação 2008-08-01
Publicado em Archives of Gynecology and Obstetrics. Heidelberg: Springer Heidelberg, v. 278, n. 2, p. 125-128, 2008.
ISSN 0932-0067 (Sherpa/Romeo, fator de impacto)
Publicador Springer
Extensão 125-128
Fonte http://dx.doi.org/10.1007/s00404-007-0537-8
Direito de acesso Acesso restrito
Tipo Artigo
Web of Science WOS:000256318300005
Endereço permanente http://repositorio.unifesp.br/handle/11600/30815

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