Placental findings of IUGR and non-IUGR

Duygu İskender-Mazman1, Zuhal Akçören, Şule Yiğit

  • 1Neonatology Unit, Department of Pediatrics, Hacettepe University Faculty of Medicine, Ankara, Turkey. duyguiskender@gmail.com.

This study aims to define the placental findings in intrauterine growth restriction (IUGR). The study group consisted of 40 neonates without IUGR and 24 neonates with IUGR, including their placentas. The cases were separated into three groups according to gestational age. Group A (n=21): 37 ≤ weeks, Group B (n=27): 32≤ - <37 weeks, Group C (n=16): < 32 weeks. Each group had two subgroups, IUGR and non-IUGR. The placentas from the non-IUGR subgroup were heavier than the IUGR subgroup placentas in the term group (p<0.05). Infarct (over 5%), increased syncytial knots and histiocytic intervillositis were more common in the IUGR cases (p<0.05). This study shows that chronic patterns of injury are significantly increased in placentas from pregnancies complicated by IUGR. If the injury in the placenta is acute or mild, fetal adaptation can compensate and prevent fetal growth restriction.

Related Concept Videos

Teratogenicity01:07

Teratogenicity

The ability of a drug to produce structural deformations and functional abnormalities in the developing embryo or the fetus is called teratogenicity, and the drug producing this effect is known as a teratogen. Teratogenic effects include stillbirth, miscarriage, intrauterine growth restriction, and neurocognitive delay. A teratogen may affect the embryo at different stages of development, which is important in determining the type and extent of the damage. During blastocyst formation, the early...
4.6K
Fetal Circulation01:14

Fetal Circulation

Fetal circulation is a unique system that facilitates the exchange of gases, nutrients, and waste products between the developing fetus and the mother. This intricate process takes place through a special organ called the placenta.
Two umbilical arteries transport blood from the fetus to the placenta. At the placenta, the blood absorbs oxygen and nutrients while simultaneously eliminating waste products. This oxygen-enriched and nutrient-rich blood then returns to the fetus through one...
4.9K
Transcytosis of IgG01:15

Transcytosis of IgG

Transcytosis is the process in which molecules are internalized by endocytosis, transported across the cell, and released through exocytosis from the opposite end of the cell. Molecules such as insulin, immunoglobulins, and certain nutrients are transferred through the recycling endosomes by recycling and transcytosis.
IgG molecules from a mother undergo transcytosis starting around 13 weeks of gestation. The amount of IgG transferred and entering the fetal blood circulation increases with...
4.6K