GAIA Level 2 Vasa Previa

**Semantic type:** Classification

**Definition:** GAIA Level 2 Vasa Previa is defined by four criteria: first, vaginal bleeding during the second or third trimester at the time of ruptured amniotic membranes; second, fetal heart rate changes ultimately resulting in sinusoidal rhythm/terminal bradycardia; third, delivery of one of the following: a) a pale, anemic infant; OR b) a recent stillbirth; OR c) a neonatal death; fourth, post-delivery examination of the placental specimen that demonstrates unsupported fetal vessels within the membranes.

**Synonyms:** - Global Alignment of Immunization safety Assessment in pregnancy Level 2 Vasa Previa - Level 2 Vasa Previa