[Effect of early sonographic placental maturity on birth weight]

Dependence of birth weight from placental maturity could be demonstrated by sonographic judgement of placental structure during pregnancy in 784 pregnant women. Early was children in with low birth weight generally seen placental maturity. In children with birth weight over 3500 grs first findings of placental maturity were in 81.8% after 35 weeks gestation. There may be possible correlations between placental maturity and risk factors typical for low placental perfusion with the consequence of fetal growth retardation as hypertension, hypotension, stress and smoking.