RESUMO
INTRODUCTION: Heterozygous defects in genes implicated in Progressive Familial Intrahepatic Cholestasis have been described in milder forms of cholestatic diseases. Our aim is to describe clinical, laboratory and imaging characteristics as well as treatment and outcome of a cohort of pediatric patients with heterozygous mutations in ATP8B1, ABCB11 or ABCB4. PATIENTS AND METHODS: We present a retrospective descriptive study including pediatric patients with at least one heterozygosis defect in ATP8B1, ABCB11 or ABCB4 diagnosed after a cholestatic episode. Clinical, diagnostic and outcome data were collected including gene analysis (panel of PFIC NextGeneDx®). RESULTS: 7 patients showed a heterozygous mutation: 3 patients in ABCB4, 1 in ABCB11, 2 in ABCB4 and ABCB11 and 1 in ATP8B1. The median onset age was 5.5 years with a median time of follow-up of 6 years. The initial presentation was pruritus followed by asymptomatic hypertransaminasemia and persistent cholestasis. Two patients had family history of gallbladder stones and mild hepatitis. All showed elevated transaminases and bile acids, high gamma glutamyl-transferase (GGT) in 3 and conjugated bilirubin in 2 patients. Liver biopsy showed inflammatory infiltrate or mild fibrosis with normal immunohistochemistry. All patients were treated with ursodeoxycholic acid, two patients requiring the addition of resincholestyramine. During follow-up, 3 patients suffered limited relapses of pruritus. No disease progression was observed. CONCLUSION: Heterozygous mutations in genes coding proteins of the hepatocellular transport system can cause cholestatic diseases with great phenotypic variability. The presence of repeated episodes of hypertransaminasemia or cholestasis after a trigger should force us to rule out the presence of these heterozygous mutations in genes involved in CIFP.
Assuntos
Colestase Intra-Hepática , Colestase , Subfamília B de Transportador de Cassetes de Ligação de ATP , Membro 11 da Subfamília B de Transportadores de Cassetes de Ligação de ATP/genética , Adenosina Trifosfatases/genética , Ácidos e Sais Biliares , Bilirrubina , Criança , Pré-Escolar , Colestase Intra-Hepática/diagnóstico , Colestase Intra-Hepática/genética , Humanos , Mutação , Prurido/genética , Estudos Retrospectivos , Transaminases/genética , Ácido Ursodesoxicólico/uso terapêutico , gama-GlutamiltransferaseRESUMO
La invaginación intestinal es la causa más frecuente de obstrucción intestinal entre los 6 y los 36 meses de edad. La mayoría son idiopáticas. Se ha descrito la asociación entre la enfermedad celíaca y la invaginación intestinal en la población pediátrica. Se presenta el caso de un varón de 23 meses ingresado por estancamiento ponderal en cuyo estudio ecográfico se observaron invaginaciones íleo-ileales asintomáticas repetidas.
Intestinal intussusception is the most frequent cause of intestinal obstruction between 6 and 36 months of age, the majority being idiopathic. The association between celiac disease and intestinal intussusception in the pediatric population has been described. We present the case of a 23-month-old male admitted due to a failure to thrive. In his ultrasound study recurrent asymptomatic ileo-ileal invaginations were found
Assuntos
Humanos , Masculino , Lactente , Doença Celíaca/diagnóstico , Intussuscepção/diagnóstico por imagem , Doença Celíaca/dietoterapia , Insuficiência de Crescimento , Dieta Livre de Glúten , Intussuscepção/dietoterapiaRESUMO
Intestinal intussusception is the most frequent cause of intestinal obstruction between 6 and 36 months of age, the majority being idiopathic. The association between celiac disease and intestinal intussusception in the pediatric population has been described. We present the case of a 23-month-old male admitted due to a failure to thrive. In his ultrasound study recurrent asymptomatic ileo-ileal invaginations were found.
La invaginación intestinal es la causa más frecuente de obstrucción intestinal entre los 6 y los 36 meses de edad. La mayoría son idiopáticas. Se ha descrito la asociación entre la enfermedad celíaca y la invaginación intestinal en la población pediátrica. Se presenta el caso de un varón de 23 meses ingresado por estancamiento ponderal en cuyo estudio ecográfico se observaron invaginaciones íleo-ileales asintomáticas repetidas.