A Preterm Infant with Feeding Aspiration Diagnosed with BOR Syndrome, Confirmed Case by Whole-Genome Sequencing and Structural Variant Calling

Autor: Da Hyeon Kim, Misun Yang, Heui Seung Jo, JongHo Park, JaHyun Jang, Sunghwan Shin, SeHyung Son
Jazyk: angličtina
Rok vydání: 2022
Předmět:
Zdroj: Children, Vol 10, Iss 1, p 76 (2022)
Druh dokumentu: article
ISSN: 10010076
2227-9067
DOI: 10.3390/children10010076
Popis: Branchiootorenal (BOR) syndrome is a rare autosomal dominant inherited disease with a prevalence of approximately 1 in 40,000 newborns. This disease is characterized by hearing loss, preauricular pits, branchial fistulas or cysts, and renal dysplasia. We discovered a case of BOR syndrome in a premature 2-week-old female infant with a gestational age of 32 weeks and two days. She and her family had major symptoms and a family history of BOR. BOR syndrome was confirmed by whole-genome sequencing and structural variant calling, which revealed an EYA1 exon 5–6 deletion. The infant had recurrent sleep and feeding cyanosis with second branchial anomalies. Via videofluoroscopic swallowing study and a modified barium swallow test, penetration into the vocal cords was observed before and during swallowing when bottle feeding. This is the first report of a preterm infant early diagnosed with BOR syndrome in which deletion margin was accurately identified by whole-genome sequencing and structural variant calling in Republic of Korea.
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