Late onset IUGR
- Late onset Intra Uterine Growth Restriction occurs after 32 weeks of gestation
- It is usually caused by uteroplacental insufficiency
- The various etiologies proposed in the development of delayed onset IUGR are:
- hypertension
- pre eclampsia
- diabetes mellitus
- maternal malnutrition
- Late in pregnancy, the fetus grows mainly by cellular hypertrophy rather than hyperplasia and hence late onset IUGR is more amenable to therapy
- The abdominal circumference will be much lower than normal as the deposition of glycogen in liver is impaired
- The head circumference will be almost normal due to the brain sparing effect
