Abstract
Glucose-6-phosphate dehydrogenase (G6PD) deficiency is the most common human erythrocyte enzyme defect, estimated to affect approximately 4million people worldwide. It is associated with severe neonatal hyperbilirubinemia, which may lead to bilirubin encephalopathy and kernicterus, and with hemolytic crisis. G6PD deficiency is an X-linked enzymopathy affecting hemizygous males, homozygous females, and also a subset of heterozygous females via chromosome X inactivation. We report four cases of female newborns with neonatal hyperbilirubinemia related to a G6PD deficiency and followed by the Centre national de référence en hémobiologie périnatale (CNRHP) from November 2013to July 2014. Clinical and biological characteristics suggested G6PD deficiency (jaundice observed within the first 24h, severe hyperbilirubinemia, associated with regenerative hemolytic anemia, low response to phototherapy, ethnic origin of the parents from high-incident geographical regions). The family investigations revealed a deficit in G6PD in one of the parents who was unaware of this deficit until then. This article aims to make neonatologists and pediatricians aware of the need to search for an etiology for any severe hyperbilirubinemia and to raise G6PD deficiency in male and female newborns in case of hyperbilirubinemia with hemolysis.
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