📋 Paediatrics
Neonatal Jaundice in Pediatrics Causes Pathophysiology Clinical Features Diagnosis and Management
Comprehensive guide to neonatal jaundice in pediatrics including definition, bilirubin metabolism, causes, clinical features, investigations, diagnosis, complications such as kernicterus, and detailed management with phototherapy and exchange transfusion.
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Frequently Asked Questions
❓ What is neonatal jaundice?
Neonatal jaundice is the yellow discoloration of the skin and sclera in newborns caused by elevated bilirubin levels in the blood during the first 28 days of life.
❓ What causes neonatal jaundice in newborn babies?
Neonatal jaundice is commonly caused by increased breakdown of red blood cells, immature liver enzymes responsible for bilirubin conjugation, increased enterohepatic circulation, hemolytic diseases such as ABO or Rh incompatibility, infections, and metabolic disorders.
❓ When does physiological jaundice usually appear in newborns?
Physiological jaundice typically appears after 24 hours of life, peaks around day 3 to 5 in term infants, and usually resolves within 7 to 10 days.
❓ What are the warning signs of pathological neonatal jaundice?
Warning signs include jaundice appearing within the first 24 hours, rapidly rising bilirubin levels greater than 5 mg per dL per day, bilirubin levels exceeding 15 mg per dL, prolonged jaundice beyond 14 days in term infants, or the presence of conjugated hyperbilirubinemia.
❓ What is kernicterus in neonatal jaundice?
Kernicterus is a severe form of bilirubin-induced brain damage caused by high levels of unconjugated bilirubin crossing the blood brain barrier and depositing in brain tissues, particularly the basal ganglia.
❓ How is neonatal jaundice diagnosed?
Diagnosis is made through clinical examination and laboratory tests including total serum bilirubin levels, direct and indirect bilirubin measurement, blood group testing of mother and infant, direct Coombs test, and complete blood count.
❓ What is the main treatment for neonatal jaundice?
The primary treatment is phototherapy, which uses blue light to convert unconjugated bilirubin into water soluble forms that can be excreted without liver conjugation.
❓ When is exchange transfusion required in neonatal jaundice?
Exchange transfusion is indicated when bilirubin levels are dangerously high, when there are signs of acute bilirubin encephalopathy, or when phototherapy fails to reduce bilirubin levels.
❓ What is the difference between breastfeeding jaundice and breast milk jaundice?
Breastfeeding jaundice occurs due to inadequate milk intake leading to dehydration and increased enterohepatic circulation, while breast milk jaundice occurs due to substances in breast milk that inhibit bilirubin conjugation and usually appears after the first week of life.
❓ Can neonatal jaundice be prevented?
Prevention includes early and frequent breastfeeding, monitoring bilirubin levels in newborns, identifying risk factors such as blood group incompatibility, and administering anti-D immunoglobulin to Rh-negative mothers when indicated.