title: [Asynchronous maturation of the placenta in dependence on the parity and the age of the parturient (author's transl)].
abstract: 5143 findings of the placenta are arranged according to the ripeness of the placenta and the parturient's age and parity; the correlations between the age of the mother at her child's birth and the findings of the placenta, illustrated more exactly in the following, prove to be statistically significant in the chi2-test for primipara and multipara without exception: In the case of primiparae asynchronous maturations of the placenta are most frequently observed after the age of 34, whereas in the case of multipara an augmentation to this extent does not begin until the age of 40, slighter disturbances, however, are already stated after the age of 29, with the primiparae already after the age of 24. Complications such as premature delivery, precocious rupture of the membranes and increased mortality of newborns are possibly caused by precociously matured placentas which especially occur in the age classes of the old and the very young parturients. The diminished functional capacity of a retarded maturity of the placenta (often observed with retarded birth and overweight children) is connected with the frequent occuring of the following complications in the corresponding age groups: cephalopelvic disproportion, prolonged duration of labour, possibly caused by the latter, retarded birth, more frequent asphyxia of newborns and increased perinatal mortality. The described findings confirm the clinical experience, made up to now, and permit a prospective application for the pre-natal supervision of especially young or old pregnant women.
mesh_terms: D000293:Adolescent; D000328:Adult; D001238:Asphyxia Neonatorum / Q000209:etiology; D005260:Female; D005313:Fetal Death / Q000209:etiology; D006801:Humans; D007231:Infant, Newborn; D008423:Maternal Age; D008858:Microscopy, Phase-Contrast; D010298:Parity; D010922:Placenta Diseases / Q000209:etiology*; D010927:Placental Insufficiency / Q000150:complications / Q000473:pathology; D011247:Pregnancy
vernacular_title: Plazentareifungsstörungen in Abhängigkeit von Parität und Alter.