When is vasa previa considered resolved?
Vasa previa was defined as a fetal vessel within 2 cm of the internal cervical os on transvaginal sonography. The primary outcome was vasa previa resolution, defined as migration of the vasa previa to >2 cm away from the internal os.
Does vasa previa require bed rest?
In some cases, a provider will recommend complete bed rest in the third trimester, and almost all women diagnosed with vasa previa should be on pelvic rest.
What do I do if I have vasa previa?
How Is Vasa Previa Treated? The goal of treatment for vasa previa is to safely prolong your pregnancy but deliver your baby early enough to avoid rupturing the blood vessels. Treatment may include: Monitoring your baby with nonstress tests twice a week, starting between 28 and 32 weeks.
How often is vasa previa missed?
Even in skilled centers specifically attempting to identify vasa previa, some cases are likely to be missed (42). In one study 1 or possibly 2 out of 11 (or 12) cases was missed, and false positive ranged from 10–16% (36, 37).
Is vasa previa rare?
Vasa previa is a rare condition where the fetal vessels run within the membranes in close proximity to the internal os. It is one of the important but rare causes of antepartum hemorrhage (APH) where the fetal distress is disproportionate to the amount of bleeding. Its incidence varies from 1:1275 to 1:.
Can vasa previa resolve after 28 weeks?
Vasa previa diagnosed during the second trimester resolves in approximately 24% of cases; however, no case of vasa previa diagnosed during the third trimester resolved by the time of delivery in our population.
Can you get vasa previa twice?
Is velamentous cord insertion likely to re-appear? There is no objective evidence of an increased likelihood of vasa previa after a first case, but your proposed risk factor comments have some potential chance of affecting future placentation. But the likelihood of a repeat is very, very low.
Can placenta previa correct itself after 32 weeks?
More than 90 percent of the time, placenta previa diagnosed in the second trimester corrects itself by term. You don’t need to restrict your activities or undergo any treatment. Your doctor will probably recommend another ultrasound at about 28 weeks, though, to make sure the placenta has moved away from the cervix.
Does prenatal diagnosis of vasa previa matter in Australia?
Our study shows a high rate of prenatal diagnosis of vasa previa in Australia and associated good outcomes. Vasa Previa Diagnosis, Clinical Practice, and Outcomes in Australia
What is box 1 of the vasa previa box?
Box 1. Suspected vasa previa on prenatal ultrasonogram at 18 weeks of gestation or greater and confirmed vasa previa on prenatal ultrasonogram at 31 weeks of gestation or greater Prenatal or intrapartum bleeding of fetal origin with pathologic cardiotocography or a positive Apt test
What is the incidence of Vasa praevia in Australia?
Although published statistics seem to vary quite widely, Sullivan et al. (2017) estimate that the incidence of patients with vasa praevia in Australia is approximately 6 to 11 cases per 10 000 pregnancies. Sutera et al. (2021) also suggest a global incidence between 1 in 500 to 1 in 5,000 pregnancies.
What are the main outcome measures in the workup of vasa previa?
The main outcome measures included stillbirth, neonatal death, cesarean delivery, and preterm birth. Box 1. Suspected vasa previa on prenatal ultrasonogram at 18 weeks of gestation or greater and confirmed vasa previa on prenatal ultrasonogram at 31 weeks of gestation or greater