Abstract

Cause of acute liver failure (ALF) in children remains elusive in almost 50% cases. It is caused by viral hepatitis, hemophagocytic lymphohistiocytosis, autoimmune diseases, drugs, and metabolic diseases. Recurrent ALF with intermittent recovery is caused by metabolic disorders such as fatty acid oxidation defects, respiratory chain disorders, or unknown repeat insult from diet, toxins, or viruses. Biallelic mutations in the neuroblastoma amplified sequence (NBAS) gene have recently been associated with infantile liver failure syndrome type 2. It is associated with ALF during intercurrent febrile illness and complete recovery with conservative management. A 12-year-old boy presented with history of recurrent ALF since infancy with complete recovery and no etiological clue. He was detected to have homozygous pathogenic variation in NBASgene which has been recently described in the literature to be associated with recurrent ALF. This is the first such case report from India. During the episode of ALF, when he presented to us, he had acute kidney injury and status epilepticus. The association of other organs with NBAS protein deficiency-associated ALF needs to be established.

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