P50.0

Clinical Causes: Vasa previa occurs when fetal blood vessels from the placenta or umbilical cord run across or near the cervix instead of branching into the placenta properly. Malformations or abnormal placental attachment, such as low-lying placentas or placenta previa, may increase the risk. Vascular cord insertion abnormalities, like velamentous cord insertion, where cord vessels insert into the fetal membranes rather than the placental mass. Multiple gestation pregnancies, particularly with faster-than-usual placental development or abnormal vessel trajectories.

Key Symptoms: Sudden fetal distress or slowing of the fetal heartbeat during labor. Unexplained fetal blood loss or anemia detected after delivery. Signs of fetal hypoxia, including decreased fetal movements observed by the mother. In some cases, visible bleeding may be detected if membranes rupture before delivery.

Diagnosis Path: Diagnosing vasa previa before labor involves the use of specialized ultrasound techniques, such as transvaginal color Doppler imaging, which can reveal the location of fetal blood vessels relative to the cervix. Routine ultrasounds during pregnancy may hint at placental abnormalities or low-lying placentas, prompting further testing to confirm the presence of vasa previa. During labor, continuous fetal monitoring can detect distress signals indicative of fetal blood loss, prompting immediate medical intervention.

Treatment Protocols: Management of vasa previa typically involves planned cesarean delivery before the onset of labor to prevent vessel rupture. Prior to delivery, close monitoring during pregnancy is essential to assess fetal well-being. In some situations, hospital admission and bed rest may be recommended, especially if the condition is diagnosed early. After delivery, the newborn may require supportive care, including blood transfusions or treatment for anemia if significant blood loss has occurred.