The recent incorporation of medium chain acyl-CoA dehydrogenase deficiency (MCADD) in newborn screening programs has facilitated the expansion of epidemiologic knowledge of this treatable disorder.

pyruvate carboxylase deficiency; VLCADD, very long chain acyl-CoA dehydrogenase deficiency. Adapted with permission from Ward JC. Inborn errors of metabolism of acute onset in infancy. Pediatr Rev ...