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Implementation of a Targeted Next-Generation Sequencing Panel for Constitutional Newborn Screening in High-Risk Neonates

 Hyunjoo Lee  ;  Joohee Lim  ;  Jeong Eun Shin  ;  Ho Sun Eun  ;  Min Soo Park  ;  Kook In Park  ;  Ran Namgung  ;  Jin-Sung Lee 
 YONSEI MEDICAL JOURNAL, Vol.60(11) : 1061-1066, 2019 
Journal Title
Issue Date
NBS ; Newborn screening ; false-positive results ; inborn errors of metabolism ; stressed infants ; targeted next-generation sequencing
PURPOSE: Newborn screening (NBS) programs are important for appropriate management of susceptible neonates to prevent serious clinical problems. Neonates admitted to neonatal intensive care units (NICU) are at a potentially high risk of false-positive results, and repetitive NBS after total parenteral nutrition is completely off results in delayed diagnosis. Here, we present the usefulness of a targeted next-generation sequencing (TNGS) panel to complement NBS for early diagnosis in high-risk neonates. MATERIALS AND METHODS: The TNGS panel covered 198 genes associated with actionable genetic and metabolic diseases that are typically included in NBS programs in Korea using tandem mass spectrometry. The panel was applied to 48 infants admitted to the NICU of Severance Children's Hospital between May 2017 and September 2017. The infants were not selected for suspected metabolic disorders. RESULTS: A total of 13 variants classified as likely pathogenic or pathogenic were detected in 11 (22.9%) neonates, including six genes (DHCR7, PCBD1, GAA, ALDOB, ATP7B, and GBA) associated with metabolic diseases not covered in NBS. One of the 48 infants was diagnosed with an isobutyl-CoA dehydrogenase deficiency, and false positive results of tandem mass screening were confirmed in two infants using the TNGS panel. CONCLUSION: The implementation of TNGS in conjunction with conventional NBS can allow for better management of and earlier diagnosis in susceptible infants, thus preventing the development of critical conditions in these sick infants.
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1. College of Medicine (의과대학) > Dept. of Pediatrics (소아과학교실) > 1. Journal Papers
Yonsei Authors
Namgung, Ran(남궁란) ORCID logo https://orcid.org/0000-0001-7182-9535
Park, Kook In(박국인) ORCID logo https://orcid.org/0000-0001-8499-9293
Park, Min Soo(박민수) ORCID logo https://orcid.org/0000-0002-4395-9938
Shin, Jeong Eun(신정은) ORCID logo https://orcid.org/0000-0002-4376-8541
Eun, Ho Seon(은호선) ORCID logo https://orcid.org/0000-0001-7212-0341
Lee, Jin-Sung(이진성) ORCID logo https://orcid.org/0000-0002-1262-8597
Lee, Hyun Joo(이현주) ORCID logo https://orcid.org/0000-0002-1432-0449
Lim, Joo Hee(임주희) ORCID logo https://orcid.org/0000-0003-4376-6607
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