IUGR

Intrauterine growth resrtriction

(IUGR)
2015-2016

SGA fetuses is those below a certain defined centile of weight (less than the10th percentile) for a particular gestational age

IUGR is failure of the fetus to achieve its normal growth potential or fetuses whose growth velocity slows down or stops.

Aetiology

Maternal factors

1-maternal disease (chronic respiratory dis.)

2-malnutrition
3-ethinic & socio-economic factors
4-maternal hypoxemia
5-low pre-pregnancy weight
6-primigravida
7-drugs


Fetal factors

1-genetic disease

2-structural abnormalities
3-chromosomal abnormalities (trisomy 13،18، 21)
4-cardiovascular disease
5-congenital infection (TORCH )
6-multiple pregnancy

Placental factors

1-reduced utero-placental perfusion (inadequate trophoblastic invasion, APS., DM, multiple gestation, placental infarction or thrombosis).

2-reduced feto-placental perfusion ( single umbilical artery, twin-twin transfusion syndrome).