title: [Congenital methaemoglobinaemia: an infrequent cause of neonatal cyanosis].
abstract: 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.
authors.affiliation: H:S Rigshospitalet, Juliane Marie Centret, Neonatalklinikken. birgitte_smith@dadlnet.dk
authors.forename: Birgitte
authors.initials: B
authors.lastname: Smith
authors.forename: Ole Axel
authors.initials: OA
authors.lastname: Pryds
authors.forename: Ernst
authors.initials: E
authors.lastname: Christensen
authors.forename: Allan Meldgaard
authors.initials: AM
authors.lastname: Lund