Patient's question:
What is neonatal hemolytic disease? Please ask the expert for a quick answer.Doctor's answer:
Analysis of the condition: Neonatal hemolytic disease is caused by blood type incompatibility between mother and child, leading to an antigen-antibody reaction between the mother and fetus. This results in the destruction of fetal red blood cells, causing a homologous passive immune disease, hence the name neonatal hemolytic disease due to blood type incompatibility between mother and child. The blood type incompatibility between mother and child primarily refers to the Rh system and ABO system.Advice: Babies suffering from neonatal hemolytic disease may exhibit various symptoms, primarily manifested as jaundice, hepatosplenomegaly, and anemia. Mild symptoms progress slowly with minimal impact on overall condition, while severe cases progress rapidly, leading to symptoms such as lethargy, poor appetite, and even bilirubin encephalopathy or death.
1. Prenatal examination: The mother's antibody levels should be measured at the first visit during pregnancy to establish a baseline value, followed by regular monitoring. If the titer rises, it suggests that the fetus may be affected. Amniotic fluid bilirubin testing; B ultrasound to check for fetal edema and ascites.
2. The goal of prenatal treatment is to correct anemia and alleviate the condition. Plasma exchange uses fresh frozen plasma or albumin as the replacement fluid, often requiring multiple exchanges. Intrauterine blood transfusion involves administering Rh-negative "O" type blood into the fetal peritoneum, with the amount of blood transfused determined by gestational age. Early delivery may be performed to prevent the fetus's condition from worsening.
3. Rh-negative women who give birth to Rh-positive infants should receive intramuscular injections of anti-D immunoglobulin (e.g., 300 micrograms) within 24 hours after delivery. This can destroy fetal red blood cells with antigenic properties and suppress the production of maternal antibodies, but it is ineffective for those who have already been sensitized.