intrauterine growth restriction
Condition where fetal growth is significantly below expected parameters for gestational age.
Full Definition
Intrauterine Growth Restriction (IUGR) refers to a condition in which a fetus fails to achieve its genetic growth potential, typically defined as estimated fetal weight below the 10th percentile for gestational age. IUGR can result from maternal factors (hypertension, malnutrition, substance abuse), fetal factors (genetic abnormalities, infections), or placental factors (placental insufficiency, abruption). The condition is associated with increased risks of perinatal morbidity and mortality, including stillbirth, neonatal complications, and long-term developmental issues. Diagnosis involves serial ultrasound measurements and Doppler studies to assess fetal well-being and placental function.
Usage
Usage note: Some centers prefer 'fetal growth restriction' (FGR) over IUGR; check institutional preferences.
In Context
- "Serial ultrasounds confirmed intrauterine growth restriction with estimated fetal weight below the 5th percentile." — Maternal-fetal medicine consultation
- "Doppler studies revealed abnormal umbilical artery flow in the setting of severe IUGR." — Ultrasound report