Positive cfDNA screening results for 22q11.2 deletion syndrome-Clinical and laboratory considerations.

ABSTRACT: Introduction: Non-invasive prenatal screening (NIPS) via cell-free DNA (cfDNA) screens for fetal chromosome disorders using maternal plasma, including 22q11.2 deletion syndrome (22q11.2DS). While it is the commonest microdeletion syndrome and has potential implications for perinatal management, prenatal screening for 22q11.2DS carries some inherent technical, biological, and counseling challenges, including varying deletion sizes/locations, maternal 22q11.2 deletions, confirmatory test choice, and variable phenotype. Materials and methods: This study addresses these considerations utilizing a retrospective cohort of 307 samples with screen-positive 22q11.2 NIPS results on a massively parallel sequencing (MPS) platform. Results: Approximately half of the cases re

SUBMITTER: Soster E 

PROVIDER: S-EPMC10036386 | biostudies-literature | 2023

REPOSITORIES: biostudies-literature