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Retrospective analysis of stored dried blood spots from children with cystic fibrosis and matched controls to assess the performance of a proposed newborn screening protocol in Switzerland

Authors :
Matthias R. Baumgartner
Juerg Barben
Toni Torresani
Ralph Fingerhut
Martin H. Schoeni
Sabina Gallati
University of Zurich
Barben, Juerg
Source :
Journal of Cystic Fibrosis. (4):332-336
Publisher :
European Cystic Fibrosis Society. Published by Elsevier B.V.

Abstract

Background Newborn screening (NBS) for Cystic Fibrosis (CF) has been introduced in many countries, but there is no ideal protocol suitable for all countries. This retrospective study was conducted to evaluate whether the planned two step CF NBS with immunoreactive trypsinogen (IRT) and 7 CFTR mutations would have detected all clinically diagnosed children with CF in Switzerland. Methods IRT was measured using AutoDELFIA Neonatal IRT-Kit in stored NBS cards. Results Between 2006 and 2009, 66 children with CF were reported, 4 of which were excluded for various reasons (born in another country, NBS at 6months, no informed consent). 98% (61/62) had significantly higher IRT compared to matched control group. There was one false negative IRT result in an asymptomatic child with atypical CF (normal pancreatic function and sweat test). Conclusions All children but one with atypical CF would have been detected with the planned two step protocol.

Details

Language :
English
ISSN :
15691993
Issue :
4
Database :
OpenAIRE
Journal :
Journal of Cystic Fibrosis
Accession number :
edsair.doi.dedup.....21d65c064cf20b3e3ba4426c0252f363
Full Text :
https://doi.org/10.1016/j.jcf.2012.01.001