Fluxometria umbilical na gravidez gemelar. Um método de identificação de crescimento fetal discordante?

Autor: N Clode, E Casal, L M Graça
Jazyk: English<br />Portuguese
Rok vydání: 1992
Předmět:
Zdroj: Acta Médica Portuguesa, Vol 5, Iss 9 (1992)
Druh dokumentu: article
ISSN: 0870-399X
1646-0758
DOI: 10.20344/amp.4509
Popis: Umbilical artery velocimetry was performed in 33 twin gestations to evaluate the predictivity of the test (umbilical artery S/D difference between the pair > 0.4) in the screening of discordant fetal growth. Four out of 10 cases of discordant fetal growth were identified by the test and it was abnormal in 1 out of 23 concordant twins. The sensitivity was 40%, specificity 95%, positive predictive value 80% and negative predictive value of 79%. In spite of its low sensitivity the test can be useful in detecting discordant fetal growth in twin pregnancies.
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