Pediatric Acute Liver Failure in Sickle Cell Disease

Abstract

<b><i>Introduction:</i></b> Sickle cell intrahepatic cholestasis (SCIC) is one of the rarest and the most severe acute hepatic manifestations of sickle cell disease (SCD) and it can rapidly progress to acute liver failure. It is associated with a high mortality rate, demanding prompt recognition and management. <b><i>Case Presentation:</i></b> We report a case of a 7-year-old boy with a history of homozygous HbS SCD who presented to the emergency department with fever, increasing abdominal pain, and jaundice. His course was complicated by acute liver injury (AST 9,472 IU/L, ALT 2,683 IU/L, total bilirubin 15.4 mg/dL; conjugated bilirubin 8.69 mg/dL, hypoalbuminemia 2.6 g/dL, and persistent hypoglycemia), with acute liver failure (coagulopathy not corrected by vitamin K administration with INR 3.26, decreased factors V 10% and VII 28%, and West Haven grade I hepatic encephalopathy associated with mild hyperammonemia of 71 µmol/L). After excluding other causes of acute liver failure, the patient was diagnosed as having SCIC and was successfully treated with manual exchange transfusion. <b><i>Conclusion:</i></b> This case reinforces that exchange transfusion is an effective treatment for SCIC and that it should be introduced promptly to prevent fulminant and potentially fatal liver failure.

Principais manifestações hepáticas na doença falciforme

“…(Praharaj & Anand, 2021;Shah et al, 2017) O tratamento pode englobar transfusão simples, exsanguineotransfusão e em casos de falha, pode-se pensar em transplante hepático (Alkhayyat et al, 2020). Mas, vale ressaltar que a compreensão sobre o transplante hepático na colestase intra-hepática falciforme ainda é limitada, uma vez que na literatura só foram descritos 23 casos (Rodrigues et al, 2020). Além disso, nos casos em que há lesão renal aguda, pode ser necessário realizar terapia de substituição renal.…”