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Correlation between umbilical arterial flow and placental morphology

A Kreczy1, L Fusi, J S Wigglesworth

  • 1Department of Pathology, University of Innsbruck, Austria.

International Journal of Gynecological Pathology : Official Journal of the International Society of Gynecological Pathologists
|October 1, 1995
PubMed

Umbilical artery blood velocity waveforms were compared with the morphological aspects of the vascular bed of 30 placentas using quantitative methods. An abnormal pulsatility index was found to be highly correlated with a lower number of arteries in the tertiary stem villi as well as a lower placental weight and birth weight. The reduction in the number of arteries seems to be due to an early developmental arrest of placental angiogenesis and is partly compensated for by increased formation of capillaries in the terminal villi, since the number of capillaries is independent of the number of arteries.

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