Question
Hello. A pregnant woman asks: What is the risk of twin-twin transfusion syndrome? Are there any prevention methods? I am pregnant with twins, and the two fetuses are a bit different in size. I am worried about the risk. How should I avoid twin-twin transfusion syndrome?
Answer
Twin-twin transfusion syndrome is a severe complication of twin pregnancy with a high perinatal mortality rate. The mortality rate without treatment is approximately 70% to 100%. Currently, laser coagulation of placental vascular communications (TTTs) has become the preferred method in many international fetal medicine centers, raising the survival rate of at least one fetus to 75% to 80%. Additionally, extending the pregnancy also plays a certain role in preventing twin-twin transfusion syndrome. Therefore, it is recommended that you try to extend your pregnancy to reduce the risk.