Clinician-authored health information
This article supports informed conversations with your clinician. It does not replace an examination, diagnosis or emergency care.
Understanding Neonatal Hyperbilirubinemia
Neonatal hyperbilirubinemia, also known as jaundice, is a common condition that affects newborn babies. It is characterized by high levels of bilirubin in the blood, which can cause a yellowish discoloration of the skin and eyes.
Bilirubin is a byproduct of the breakdown of red blood cells, and it is normally removed from the body by the liver. However, in newborns, the liver may not be mature enough to process bilirubin efficiently, leading to a buildup of the substance in the blood.
Causes and Risk Factors
- Premature birth: Babies born before 37 weeks of gestation are at a higher risk of developing hyperbilirubinemia.
- Hemolysis: The breakdown of red blood cells can lead to an increase in bilirubin levels.
- Liver immaturity: Newborns' livers may not be fully developed, making it difficult for them to process bilirubin.
- Genetic disorders: Certain genetic conditions, such as glucose-6-phosphate dehydrogenase (G6PD) deficiency, can increase the risk of hyperbilirubinemia.
Symptoms and Diagnosis
The main symptom of neonatal hyperbilirubinemia is a yellowish discoloration of the skin and eyes. Other symptoms may include:
- Lethargy
- Loss of appetite
- Vomiting
- Arching of the back
Diagnosis is typically made through a physical examination and laboratory tests, including bilirubin level measurements.
Treatment and Management
Treatment for neonatal hyperbilirubinemia depends on the severity of the condition and may include:
- Phototherapy: Exposure to special lights that help break down bilirubin in the skin.
- Exchange transfusion: Replacing the baby's blood with donor blood to reduce bilirubin levels.
- Medications: Certain medications, such as phenobarbital, may be used to enhance liver function and reduce bilirubin levels.