Placental weight in human foeto-maternal incompatibility.
Year: 1970
Type: article
Study design: Observational Study
Abstract: Foeto-maternal ABO incompatibility is associated with increased placental weight; the observation, however, was valid only in the male placentas of primigravidas. It is suggested that a cumulative effect of two incompatibilities, Y chromosome-dependent incompatibility and ABO incompatibility, is needed for this influence on placental weight to be manifested, since male placentas were heavier than female placentas in ABO incompatible cases but not in ABO compatible cases. Also, this effect was found only in the first pregnancy. It is concluded that in later pregnancies the effect of multiparity masks the influence of ABO incompatibility and foetal sex. Different foeto-maternal Rh combinations were not found to have any effect on placental weight.
Source: PubMed
Authors: P Toivanen, T Hirvonen
Language: English
Topic: Blood groups and transfusion
Subfield: Hematology
Field: Medicine
Domain: Health Sciences
Open Access status: green
OpenAlex ID: W44726080