In TRAP syndrome, what birthweight ratio indicates an increased risk of preterm delivery?

In TRAP syndrome, what birthweight ratio indicates an increased risk of preterm delivery?

• A. Less than 50%
• B. Between 50% and 70%
• C. More than 70%
• D. Greater than 90%

Answer: (C)

In TRAP (Twin Reversed Arterial Perfusion) syndrome, the relationship between the weights of the twins is critical, particularly in assessing the risk for preterm delivery. The birthweight ratio that indicates an increased risk of preterm delivery is one that exceeds 70%. This is because, in TRAP syndrome, one twin (the donor) is often growth-restricted due to its reliance on the other twin’s circulation (the recipient). When the weight ratio is more than 70%, it signals that the donor twin is facing significant challenges that could lead to complications. This higher ratio indicates a greater disparity between the sizes of the two twins, which is often associated with increased vascular stress and hemodynamic instability that can contribute to early labor. Monitoring weight ratios is crucial in the management of pregnancies complicated by TRAP syndrome, as interventions might be necessary to improve outcomes for both twins. In summary, a birthweight ratio greater than 70% serves as a crucial indicator of the risk for preterm delivery in cases of TRAP syndrome, highlighting the importance of careful monitoring and management in these pregnancies.

In TRAP (Twin Reversed Arterial Perfusion) syndrome, the relationship between the weights of the twins is critical, particularly in assessing the risk for preterm delivery. The birthweight ratio that indicates an increased risk of preterm delivery is one that exceeds 70%. This is because, in TRAP syndrome, one twin (the donor) is often growth-restricted due to its reliance on the other twin’s circulation (the recipient).

When the weight ratio is more than 70%, it signals that the donor twin is facing significant challenges that could lead to complications. This higher ratio indicates a greater disparity between the sizes of the two twins, which is often associated with increased vascular stress and hemodynamic instability that can contribute to early labor. Monitoring weight ratios is crucial in the management of pregnancies complicated by TRAP syndrome, as interventions might be necessary to improve outcomes for both twins.

In summary, a birthweight ratio greater than 70% serves as a crucial indicator of the risk for preterm delivery in cases of TRAP syndrome, highlighting the importance of careful monitoring and management in these pregnancies.