Liver Involvement in Neuroblastoma Amplified Sequence Gene Deficiency is Not Limited to Acute Injury: Fibrosis Silently Continues
Liver international(2021)
摘要
Biallelic mutations in neuroblastoma amplified sequence gene (NBAS) is a rare disease which is characterized by recurrent liver failure (RALF). We reported the novel mutations, clinical characteristics and long-term outcomes of 5 patients with novel biallelic NBAS variants. Four patients (80%) had acute, episodic liver crises (LC) triggered by fever, with a median age of onset of 8.5 months. The median age in the last episode was 34 months. Median number of liver episodes was 4. The course of ALF was complicated by hepatic encephalopathy and hypoglycaemia in all patients with ALF. Two patients recovered with conservative treatment, 2 required liver transplantation (LT) and 1 died during the fourth episode. Long-term post-transplant follow-up showed normal liver function and histology. There is no hepatic or extrahepatic recurrence after LT. Non-transplanted patients exhibited fibrosis in either biopsy or elastography. Despite a reduction in the frequency of clinically significant episodes, patients may exhibit ongoing liver injury and fibrosis. An acute on chronic liver failure with predominant cholestasis can be an alternative presentation.
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关键词
acute liver failure,fibrosis,ILFS2,liver transplantation,whole-exome sequencing
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