한국인 태반에 관한 연구 (연속 1,000예의 육안적 및 현미경적 관찰)

Abstract

With increasing concern for the study of the fetal aspects of pregnancy , the availability of normal standards of placenta becomes more and more important It is very difficult to test the functional capacity of placenta. And for this reason anatomic studies to determine the normal relationship between the placenta and the newborn infant have come to be of considerable importance. A study of morphometric features of L 000 consecutive placentas delivered at the Seoul National University Hospital during a period of 2 years, from March 1978 to April 1980, in relation to gestational age and weight of newborn was carried out The findings could be summarized as follows 1. The average weight and dimensions of term placentas were 476.96gm and 20.32 X17.73X 1. 52cm. The weight and size of placenta were progressively increased from 24 to 40 weeks of gestation. 2. The average length of umbilical cord was 57cm and the commonest site of insertion was eccentric. 3. The abnormal gross findings among 1, 000 placentas included 5 cases of single umbilical artery, 37 cases of circummarginate placenta. and 3 cases of Koreanschorioangioma. 4. The frequency of chorioamnionitis was 2% in this series. 5. Morphometric features like placental weight, dimensions, fetoplacental ratio and placental co·effcient showed a more significant co·relation with hirth weight than with gestational age.