Single-Molecule Counting for Noninvasive Prenatal Diagnosis of Autosomal Recessive Hearing Loss in at-Risk Families: A Proof-of-Concept Study
A noninvasive prenatal test using advanced DNA sequencing can accurately detect hereditary hearing loss genes, avoiding the need for invasive diagnostic procedures.
This Chinese proof-of-concept study demonstrated that NIPT using single-molecule counting NGS technology can detect autosomal recessive hereditary hearing loss genotypes from cell-free DNA with 99.67% consistency and 96% diagnostic accuracy in 50 at-risk pregnancies. The technology avoids invasive prenatal procedures, though the small validation cohort limits assessment of false-negative and false-positive rates.
What the study was
- Study design
- Proof-of-concept validation study
- Population
- 50 singleton pregnancies at risk for fetal hereditary sensorineural hearing loss
- Sample size
- 50
- Category
- Diagnostics
- Maturity
- Exploratory
- Journal
- The Journal of Molecular Diagnostics
Why it surfaced
Unsolicited find from cfDNA/sentinel scan; proof-of-concept only; small n=50; outside primary watchlist but relevant to cfDNA diagnostics space; low priority for current pipeline.
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