A newborn Screening Programme for Inborn errors of metabolism in Galicia: 22 years of evaluation and follow-up

Autor: María L. Couce, María-Dolores Bóveda, Daisy E. Castiñeiras, María-Eugenia Vázquez-Mosquera, Sofía Barbosa-Gouveia, María-José De Castro, Agustin J. Iglesias-Rodríguez, Cristóbal Colón, José A. Cocho, Paula Sánchez
Jazyk: angličtina
Rok vydání: 2024
Předmět:
Zdroj: Orphanet Journal of Rare Diseases, Vol 19, Iss 1, Pp 1-11 (2024)
Druh dokumentu: article
ISSN: 1750-1172
DOI: 10.1186/s13023-024-03204-y
Popis: Abstract Background There is a notable lack of harmonisation in newborn screening (NBS) programmes worldwide. The Galician programme for early detection of inborn errors of metabolism (IEM) was one of the first NBS programmes in Europe to incorporate mass spectrometry (July 2000). This programme currently screens for 26 IEMs in dried blood and urine samples collected 24–72 h after birth. Results In its 22-year history, this programme has analysed samples from 440,723 neonates and identified 326 cases of IEM with a prevalence of 1:1351. The most prevalent IEMs were hyperphenylalaninaemia (n = 118), followed by medium chain acyl-CoA dehydrogenase deficiency (MCADD, n = 26), galactosaemia (n = 20), and cystinurias (n = 43). Sixty-one false positives and 18 conditions related to maternal pathologies were detected. Urine samples have been identified as a useful secondary sample to reduce the rate of false positives and identify new defects. There were 5 false negatives. The overall positive value was 84.23%. The fatality rate over a median of 12.1 years of follow-up was 2.76%. The intelligence quotient of patients was normal in 95.7% of cases, and school performance was largely optimal, with pedagogic special needs assistance required in
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