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  • Title: Can placental surface area and neonatal weight be predicted from placental surface measurements? Preliminary observations on normal-term pregnancies.
    Author: Blickstein I, Ron A.
    Journal: Gynecol Obstet Invest; 1995; 40(4):253-6. PubMed ID: 8586307.
    Abstract:
    OBJECTIVE: To evaluate the relations between chorionic plate measurements and neonatal weight as prerequisites for possible prediction of fetal weight using antenatal placental measurements. METHODS: We examined freshly delivered placentas. The surface area (chorionic plate) was measured using millimeter paper, and the two longest diameters (at right angles to each other) were determined (L1 and L2). The mean longest diameter [Lm = (L1 + L2)/2] was calculated. The relation of these diameters to neonatal and placental weight was studied. RESULTS: We examined 57 randomly selected placentas after normal pregnancy and delivery. The three chorionic plate diameters significantly correlated with the surface area and the placental and neonatal weights. The strongest correlation (r = 0.94; p < 10(-6) was found between Lm and placental surface area. CONCLUSIONS: Our preliminary results suggest that chorionic plate measurements may be suitable to predict placental surface area and neonatal birth weight in normal-term pregnancies. Further studies to verify prospectively these relations at various gestational ages and in cases of abnormal fetal growth are required.
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