The Effect of Prolonged Antenatal IVIG Treatment on the Development of Gestational Alloimmune Liver Disease in the Neonate
Authors: Afridi Faraz A , Gomes Janine , Mysore Sukrita A , Ahmed Rafat , Kushnir Alla A 
Published: November 2020

Introduction: Gestational Alloimmune Liver Disease (GALD) is a rare disease characterized by subacute fetal liver injury and often accompanied by hepatic and extrahepatic iron deposition. Findings include hypoglycemia, coagulopathy, hypoalbuminemia, elevated serum ferritin, elevated alpha-fetoprotein, and ascites. Extrahepatic hemosiderin deposition is often seen in salivary glands. Previously, the mortality rate was close to 80% with all patients needing liver transplantation. With maternal IVIG treatment and changes in neonatal treatment, there is now less than 20% mortality with infrequent need for liver transplantation. Diagnosis of GALD is typically done on a postmortem analysis.

Case Description: A term female infant was born via scheduled c-section to a 32 year old G2P1000 mother who had been receiving weekly IVIG during this pregnancy due to the death of her first child at 4 days of life. Autopsy of that female baby demonstrated extensive neuropathological changes, liver steatosis, iron depletion, and ascites, consistent with GALD. Following delivery of our current patient, there was an elevated alpha-fetoprotein (greater than 80,000), decreased fibrinogen, and coagulopathy with peak international normalized ratio of 1.6. The patient received fresh frozen plasma and IVIG on day of life 1 with improvement of these levels. Complete blood count, liver function tests, and ammonia were within normal limits. An MRI of the liver demonstrated normal size, morphology, and normal iron levels based on T2 relaxometry. A buccal biopsy did not demonstrate extrahepatic iron deposition. MRI of the brain showed significant stenosis of the right transverse and sigmoid sinus relating to dural venous sinus thrombosis. There was no evidence of parenchymal infarction and no evidence of iron deposition. At this time, enoxaparin was initiated. The patient was discharged home on day of life nine on enoxaparin therapy.

Discussion: There are few reported cases of patients with GALD, especially after maternal IVIG treatment. This case report exemplifies the effect of antenatal IVIG infusions during subsequent pregnancies in women with a history of GALD in prior children. This effect is protective, evidenced by lack of liver injury noted in this patient. This supports the use of immunotherapy during pregnancy to prevent recurrence of alloimmune injury.

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Image: (A) MRI liver showing normal appearance without evidence of hemochromatosis (B) MRI brain showing no evidence of iron deposition within the brain parenchyma (C) MRV head showing right transverse and sigmoid venous sinus thrombosis

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Disclosures

No relevant conflicts of interest to declare.