Journal
PRENATAL DIAGNOSIS
Volume 41, Issue 11, Pages 1460-1466Publisher
WILEY
DOI: 10.1002/pd.6033
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Funding
- NIH NHLBI grant [K08HL1469630-02]
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Expanded genetic carrier screening can identify individuals with personal health implications, but many patients are not counseled before or after testing. Developing guidelines for practitioners about expanded carrier screening counseling and follow-up is important based on these findings.
Objective Preconception and prenatal carrier screening is designed to provide reproductive risk information, but carriers for some autosomal recessive or X-linked conditions also have personal health risks. This study investigated the prevalence of and inclusion of personal health implications in pre- and post-test counseling. Methods Twelve genetic conditions with personal health risks for carriers included on carrier screening panels but not otherwise screened routinely were identified (e.g., Gaucher disease with Parkinson's disease risk). A retrospective review was performed of patients with a positive carrier screen for one of these conditions at our center from 2012 to 2019. Results Of 6147 individuals that had carrier screening for one of the twelve conditions, 96 (1.56%) did not report a known family history and screened positive for one of the conditions. Testing was ordered largely by reproductive endocrinologists (51.0%) and genetic counselors (35.4%). Most individuals did not receive pre- (96.8%) or post-test (64.6%) counseling about personal health risks. Post-test counseling was performed principally by genetic counselors (97.1%). For carriers of conditions with guidelines for specialist referral, most individuals (75.9%) were referred. Conclusion Expanded genetic carrier screening increasingly identifies individuals with personal health implications, but patients are frequently not counseled before or after testing. These findings stress the importance of developing guidelines for practitioners about expanded carrier screening counseling and follow-up.
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