The maximum systolic velocity increases in middle cerebral artery of normal fetus from 22nd to 38th week of gestation.

Authors

  • A Gadelha-Costa Departamento de Obstetrícia e Ginecologia, Faculdade de Medicina de Ribeirão Preto da Universidade de São Paulo, Brasil.
  • P Spara-Gadelha
  • F Mauad-Filho
  • E B Gadelha

DOI:

https://doi.org/10.20344/amp.922

Abstract

To assess peak systolic velocity values in middle cerebral artery (PSMCA) of normal fetuses from 22nd to 38th week of gestation.We made a prospective study of 33 healthy fetuses from 22nd to 38th to determine peak systolic velocity by Doppler velocimetry. Doppler ultrasound was performed by a single observer, always using the same apparatus. The Doppler tracing was obtained with a sample volume of 1 mm; placement was on the anterior middle cerebral artery, as close as possible to the skullcap. The insonation angle was kept below 20 degrees and the wall filter was adjusted to a frequency of 50-100 Hz. The PSMCA increases from 26.3 cm/s to 57.7 cm/s in middle cerebral artery from 22nd to 38th week of gestation (p < 0.05). There was a significant positive correlation between PSMCA and the gestational values (p < 0.001, r2 = 60.5%).In normal fetuses, the PSMCA increases from 22nd to 38th week of gestation. The Doppler velocimetry values for normal fetuses could be compared with those obtained during fetal anemia.

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How to Cite

1.
Gadelha-Costa A, Spara-Gadelha P, Mauad-Filho F, Gadelha EB. The maximum systolic velocity increases in middle cerebral artery of normal fetus from 22nd to 38th week of gestation. Acta Med Port [Internet]. 2006 Aug. 18 [cited 2022 Dec. 10];19(2):105-8. Available from: https://www.actamedicaportuguesa.com/revista/index.php/amp/article/view/922

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Arquivo Histórico