Considerations for whole exome sequencing unique to prenatal care

Area of Science:

• Genetics
• Prenatal Diagnostics
• Genomic Medicine

Background:

• Whole exome sequencing (WES) is gaining traction in prenatal diagnostics.
• Existing data suggest significant clinical utility and diagnostic yield, particularly when combined with ultrasound findings.

Purpose of the Study:

• To review current literature and summarize recent findings on prenatal WES.
• To provide a resource for specialists and genetic laboratorians regarding prenatal WES.
• To highlight emerging technologies for non-invasive prenatal WES.

Main Methods:

• Literature review of existing studies and expert opinions on prenatal WES.
• Analysis of diagnostic yield and clinical utility data.
• Exploration of emerging technologies in prenatal genetic testing.

Main Results:

• Prenatal WES demonstrates a diagnostic yield up to 80% for specific ultrasound abnormalities.
• There is a lack of comprehensive guidelines for prenatal WES indications, interpretation, and counseling.
• Emerging technologies aim to reduce risks associated with invasive prenatal testing.

Conclusions:

• Prenatal WES is a valuable tool with high diagnostic potential.
• Development of standardized guidelines is crucial for widespread and ethical adoption.
• Future advancements promise safer, non-invasive prenatal genetic analysis.