[Congenital methaemoglobinaemia: an infrequent cause of neonatal cyanosis].
We present a case study of a newborn girl with a reduced erythrocytic nicotinamide adenine dinucleotide (NADH)-dependent methaemoglobin reductase level. Within the first days of life she developed cyanosis due to a methaemoglobin level of 21%. The hyperoxia test was characteristic, with normal increases in blood oxygen tension, whereas the oxygen saturation remained constant at 92%. Over the next months the methaemoglobin level decreased to 10%, and the girl did well without treatment.
Smith
Birgitte
B
H:S Rigshospitalet, Juliane Marie Centret, Neonatalklinikken. birgitte_smith@dadlnet.dk
Pryds
Ole Axel
OA
Christensen
Ernst
E
Lund
Allan Meldgaard
AM