Behandlung einer akuten monoblastären Leukämie bei einem Säugling mit einer Glutarazidurie Typ I

Glutaric aciduria type 1 (GA1) is caused by an inherited deficiency of the enzyme glutaryl coenzyme A dehydrogenase (GDH) involved in the degradation of lysine, hydroxylysine, and tryptophan. Affected infants develop unspecific neurological symptoms and macrocephaly. Deterioration of the neurological status, so-called encephalopathic crisis can be triggered by catabolism and is usually incompletely reversible. We report on a 4-year-old girl with GA1 who presented with acute monoblastic leukemia at the age of 8 months. She was treated with combination chemotherapy according to current standards. Despite the elevated risk of metabolic imbalance during infections in neutropenia, encephalopathy crises could be avoided by reduced intake of lysine and tryptophan, a high-energy diet, and supplementation with carnitine.