Doppler evaluation of the posterior cerebral artery in normally grown and growth restricted fetuses

Jesus Andres Benavides-Serralde, Edgar Hernandez-Andrade, Rogelio Cruz-Martinez, Mónica Cruz-Lemini, Matthias Scheier, Francesc Figueras, Javier Mancilla, Eduard Gratacos

Producción científica: Contribución a una revistaArtículorevisión exhaustiva

13 Citas (Scopus)

Resumen

Objective: To evaluate Doppler parameters of the two segments of the posterior cerebral artery (PCA) in normally grown and growth restricted (IUGR) fetuses. Methods: Normal reference values of the pulsatility index (PI), peak systolic velocity, end-diastolic velocity, and time-averaged maximum velocity from the two segments of the PCA (segment one, PCA-S1; segment two, PCA-S2) were constructed in 350 pregnant women from 20 to 40weeks of gestation. The association of the two PCA segments with the middle cerebral artery (MCA), and with the umbilical artery was evaluated in 50 IUGR fetuses. Results: In normal fetuses, Doppler parameters from PCA-S1 and PCA-S2 showed similar behavior throughout gestation. In IUGR fetuses, the PI of the two PCA segments was significantly reduced with no differences between them. PCA-S2 PI showed a higher correlation with the MCA-PI (r=0.73) than PCA-S1 PI (r=0.63; p=0.001). IUGR fetuses showed vasodilatation in the PCA earlier than in the MCA disregarding the umbilical artery-PI value. Conclusion: In IUGR fetuses, the two segments of the PCA show signs of vasodilatation earlier than the MCA. As IUGR fetuses deteriorate, the two segments of the PCA and the MCA behave similarly.

Idioma originalInglés
Páginas (desde-hasta)115-120
Número de páginas6
PublicaciónPrenatal Diagnosis
Volumen34
N.º2
DOI
EstadoPublicada - feb. 2014
Publicado de forma externa

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