USG examination of a 28-week pregnant primigravida shows vasa pre. All of the following are true, EXCEPT:
**Core Concept**
The vasa previa is a rare but life-threatening condition in pregnancy, where fetal blood vessels are exposed and unsupported between the amniotic sac and the placenta or cervix. This condition is associated with an increased risk of antepartum hemorrhage and fetal death.
**Why the Correct Answer is Right**
Vasa previa is often associated with placental abnormalities, such as velamentous cord insertion, where the umbilical cord inserts into the membranes rather than the placental mass. This increases the risk of fetal blood vessel exposure and rupture. The condition is typically diagnosed by ultrasound, which reveals the presence of fetal blood vessels unsupported by Wharton's jelly between the amniotic sac and the placenta or cervix.
**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect because vasa previa is indeed associated with an increased risk of antepartum hemorrhage due to the rupture of exposed fetal blood vessels.
**Option B:** This option is incorrect because velamentous cord insertion is a known risk factor for vasa previa, increasing the likelihood of fetal blood vessel exposure.
**Option C:** This option is incorrect because early diagnosis and delivery are often the recommended management strategies for vasa previa to prevent fetal loss.
**Clinical Pearl / High-Yield Fact**
Vasa previa is a rare but life-threatening condition in pregnancy, and early diagnosis by ultrasound is critical to prevent fetal loss. Clinicians should be aware of the risk factors, including velamentous cord insertion and placental abnormalities, to optimize patient care.
**Correct Answer:** D