What complication is most likely associated with velamentous cord insertion?

Velamentous cord insertion refers to a condition where the umbilical cord inserts into the fetal membranes (amnion and chorion) rather than directly into the placenta. This type of insertion is associated with a higher risk of certain complications due to the potential for the blood vessels that run along the membranes to be exposed and unprotected.

Hemorrhage is particularly associated with velamentous cord insertion because if these vessels rupture during labor or delivery, it can lead to significant maternal and fetal bleeding. This situation can occur because the exposed vessels may not have the same protective coverage as they would if they were inserted directly into the placenta. The risk of catastrophic hemorrhage increases, leading to a critical situation that requires immediate intervention.

While complications like retained placental tissue can occur in various circumstances, and placental abruption is a serious condition on its own, they are not directly tied to the mechanics of velamentous cord insertion. Delayed labor can occur for various reasons, but is not a complication directly associated with this specific insertion type. In contrast, the risk of hemorrhage from vessel rupture is the most prominent concern tied to this condition, emphasizing the importance of careful monitoring and management during labor and delivery for patients with velamentous cord insertion.