Neonatal Hemochromatosis Diagnosis and Management

Introduction to Neonatal Hemochromatosis

• Neonatal hemochromatosis is the leading cause of acute liver failure in neonates requiring transplantation, presenting within the first days to weeks of life with severe hepatic injury and iron overload 1

Diagnostic Criteria

• The constellation of elevated alpha-fetoprotein (often 10-fold higher than normal neonatal values) is pathognomonic for neonatal hemochromatosis 2
• Coagulation studies (PT/INR, PTT) indicate hepatic synthetic failure and poor prognosis, with hypoalbuminemia confirming severe hepatic dysfunction 3, 1

Differential Diagnoses

• Tyrosinemia Type 1 would show elevated blood or urine succinylacetone levels, with AFP elevation but not as dramatically elevated as in neonatal hemochromatosis 3, 2
• Alpha-1 Antitrypsin Deficiency accounts for 7-18% of neonatal cholestasis cases, presenting with neonatal cholestasis in 11% of PI*ZZ infants, and can be diagnosed with alpha-1 antitrypsin phenotyping by isoelectric focusing 4, 1

Management and Prognosis

• The American Academy of Pediatrics recommends urgent referral to a pediatric liver transplant center for any neonate with acute liver failure 1
• Poor prognostic factors include coagulopathy (elevated PT/INR), hypoalbuminemia, hard hepatomegaly, and elevated bilirubin 3, 1