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Unconjugated congenital hyperbilirubinaemias


Gilbert’s syndrome:

Common familial hyperbilirubinaemia

Affects 2-7% of the population

Asymptomatic – usually detected as an incidental finding of a slightly raised bilirubin (17-102mmol/L) on a routine blood test

NO signs of liver disease are seen

Family history of jaundice in 5-15% of pts

Most pts have reduced levels of UDP-glucuronosyl transferase activity


Crigler-Najjar syndrome:

Very rare

Two types:

Type I (autosomal recessive, absence of glucuronosyl transferase)

Type II (autosomal dominant, decreased glucuronosyl transferase activity)

Only those with type II can survive into adult life

Transplantation is the only effective treatment






 


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