Placental pathology and fetal growth outcomes in pregnancies complicated by maternal obesity.

Presence of obesity in pregnancy is associated with increased rates of placental patterns of injury, decreased placental efficiency, and increased birthweight percentiles. While placental lesions, such as CV, have the potential to negatively impact fetal growth, the resulting birthweight percentiles demonstrate a more complex relationship between maternal obesity and fetal growth, that likely involves placental and fetal adaptation to the altered in utero environment.