Discordant growth
Significant difference in fetal size between twins, typically defined as >20% weight difference, indicating potential complications.
Full Definition
Discordant growth refers to a significant disparity in fetal weight between twins in multiple pregnancies, usually defined as a difference of 20% or greater between the estimated fetal weights. This condition can indicate twin-to-twin transfusion syndrome, selective intrauterine growth restriction, or other placental abnormalities. Discordant growth requires enhanced monitoring through serial ultrasounds and may necessitate early delivery or specialized interventions. The condition is more common in monochorionic twins due to shared placental circulation.
Usage
Usage note: Hyphenate when used as compound adjective. Do not confuse with general growth restriction affecting singletons.
In Context
- "Serial ultrasounds revealed discordant growth with a 25% weight difference between the twins." — Maternal-fetal medicine consultation
- "Discordant growth in monochorionic twins warrants evaluation for twin-to-twin transfusion syndrome." — Clinical protocol