Congenital chloride diarrhoea in a Chinese infant with a compound heterozygous SLC26A3 mutation
Congenital chloride diarrhoea in a Chinese infant with a compound heterozygous SLC26A3 mutation

Congenital chloride diarrhoea in a Chinese infant with a compound heterozygous SLC26A3 mutation

BMC Pediatr. 2024 May 4;24(1):305. doi: 10.1186/s12887-024-04788-x.

ABSTRACT

INTRODUCTION: Congenital chloride diarrhoea (CCD) is an autosomal recessive condition that causes secretory diarrhoea and potentially deadly electrolyte imbalances in infants because of solute carrier family 26 member 3 (SLC26A3) gene mutations.

CASE PRESENTATION: A 7-month-old Chinese infant with a history of maternal polyhydramnios presented with frequent watery diarrhoea, severe dehydration, hypokalaemia, hyponatraemia, failure to thrive, metabolic alkalosis, hyperreninaemia, and hyperaldosteronaemia. Genetic testing revealed a compound heterozygous SLC26A3 gene mutation in this patient (c.269_270dup and c.2006 C > A). Therapy was administered in the form of oral sodium and potassium chloride supplements, which decreased stool frequency.

CONCLUSIONS: CCD should be considered when an infant presents with prolonged diarrhoea during infancy, particularly in the context of maternal polyhydramnios and dilated foetal bowel loops.

PMID:38704545 | DOI:10.1186/s12887-024-04788-x