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- Title
Expanded Newborn Screening in Italy Using Tandem Mass Spectrometry: Two Years of National Experience.
- Authors
Ruoppolo, Margherita; Malvagia, Sabrina; Boenzi, Sara; Carducci, Carla; Dionisi-Vici, Carlo; Teofoli, Francesca; Burlina, Alberto; Angeloni, Antonio; Aronica, Tommaso; Bordugo, Andrea; Bucci, Ines; Camilot, Marta; Carbone, Maria Teresa; Cardinali, Roberta; Carducci, Claudia; Cassanello, Michela; Castana, Cinzia; Cazzorla, Chiara; Ciatti, Renzo; Ferrari, Simona
- Abstract
Newborn screening (NBS) for inborn errors of metabolism is one of the most advanced tools for secondary prevention in medicine, as it allows early diagnosis and prompt treatment initiation. The expanded newborn screening was introduced in Italy between 2016 and 2017 (Law 167/2016; DM 13 October 2016; DPCM 12-1-2017). A total of 1,586,578 infants born in Italy were screened between January 2017 and December 2020. For this survey, we collected data from 15 Italian screening laboratories, focusing on the metabolic disorders identified by tandem mass spectrometry (MS/MS) based analysis between January 2019 and December 2020. Aminoacidemias were the most common inborn errors in Italy, and an equal percentage was observed in detecting organic acidemias and mitochondrial fatty acids beta-oxidation defects. Second-tier tests are widely used in most laboratories to reduce false positives. For example, second-tier tests for methylmalonic acid and homocysteine considerably improved the screening of CblC without increasing unnecessary recalls. Finally, the newborn screening allowed us to identify conditions that are mainly secondary to a maternal deficiency. We describe the goals reached since the introduction of the screening in Italy by exchanging knowledge and experiences among the laboratories.
- Subjects
ITALY; NEWBORN screening; HOMOCYSTEINE; GLUCOSE metabolism disorders; MASS spectrometry; DIAGNOSTIC errors; INBORN errors of metabolism; FATTY acids
- Publication
International Journal of Neonatal Screening (IJNS), 2022, Vol 8, Issue 3, pN.PAG
- ISSN
2409-515X
- Publication type
Article
- DOI
10.3390/ijns8030047