Relationship between fetal weight and placenta. Westermark (Berich. ü. d. ges. Gyn., Bd. XI)
Kazan medical journal ›› 1927, Vol. 23 ›› Issue (2) : 250 -250.
Relationship between fetal weight and placenta. Westermark (Berich. ü. d. ges. Gyn., Bd. XI)
The relation of fetal and placental weight under different conditions was studied by Westermark on a material of 20,000 cases, using mathematical formulas, and he came to the following conclusions: fetal weight is less at first birth than at subsequent birth and is independent of the age of the mother; the placenta of full-term fetuses weighs on average 644.0 in boys and 657.0 in girls; the ratio of placental to fetal weight in boys is 1: 5.47, in girls 1:5.17; fetal weight arrives faster than placenta weight; the number determining the proportion between fetal weight and placenta weight increases with maternal age, but is independent of the number of former pregnancies; it is greater in twins.
Board E.
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