Pyruvate kinase (PK) deficiency in newborns: the pitfalls of diagnosis.

Pissard, Serge; de Montalembert, Mariane; Bachir, Dora; Max-Audit, Isabelle; Goossens, Michel; Wajcman, Henri; Bader-Meunier, Brigitte · J Pediatr · 2007

case_report · Level V

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Abstract

Pyruvate kinase (PK) deficiency is asymptomatic in heterozygotes, but it can lead in homozygous neonates to a severe neonatal hemolysis, sometimes life-threatening. We report five cases, with a 1- to 17-month delayed diagnosis, highlighting the need to measure PK activity in neonates and parents in case of an hemolysis at birth.

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