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Last Posted: Feb 22, 2024
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Heart Disease Risk Higher with Genetic Variant Plus Even Slightly Elevated Cholesterol
Inside Precision Medicine, February 2, 2023

From the article: " Even people with moderately elevated low-density lipoprotein cholesterol (LDL-C) have higher risk of heart disease if they also had a variant for familial hypercholesterolemia (FH), according to new research. The long-term study included over 20,000 patients and reinforces the value of genetic testing for this condition."

Familial Hypercholesterolemia Variant and Cardiovascular Risk in Individuals With Elevated Cholesterol
Y Zhang et al, JAMA Cardio, January 31, 2023

From the abstract: "How do familial hypercholesterolemia (FH) genetic variants modify coronary heart disease (CHD) risk among adults with moderate (LDL-C 130-189 mg/dL) and severe (LDL-C=190 mg/dL) hypercholesterolemia? In this pooled cohort study of 21?426 participants followed up with for a median of 18 years, FH variants were associated with a 2-fold higher CHD risk, even among individuals with moderately elevated LDL-C. The increased CHD risk appeared to be largely explained by the substantially higher lifetime cumulative LDL-C exposure in those with an FH variant vs those without. The findings suggest that genetic testing for FH may help refine risk stratification beyond LDL-C alone; clinical research is needed to assess the value of adding genetic testing to traditional phenotypic FH screening. "

Cost-Effectiveness of Screening Strategies for Familial Hypercholesterolaemia: An Updated Systematic Review.
Clara Marquina et al. Pharmacoeconomics 2024 1

From the abstract: "A total of 21 studies evaluating 62 strategies were included in this review, most of the studies (95%) adopted a healthcare perspective in the base case, and majority were set in high-income countries. Strategies analysed included cascade screening (23 strategies), opportunistic screening (13 strategies), systematic screening (11 strategies) and population-wide screening (15 strategies). Most of the strategies relied on genetic diagnosis for case ascertainment. Based on reported willingness to pay thresholds for each setting, most CEA studies concluded that screening for FH compared with no screening was cost-effective, regardless of the screening strategy. Cascade screening resulted in the largest health benefits per person tested. "

Secondary (additional) findings from the 100,000 Genomes Project: disease manifestation, healthcare outcomes and costs of disclosure
J Nolan et al, Genetics in Medicine, December 19, 2023

From the abstract: "The UK 100,000 Genomes Project offered participants screening for additional findings (AFs) in genes associated with familial hypercholesterolemia (FH) or hereditary cancer syndromes including breast/ovarian cancer (HBOC), Lynch, familial adenomatous polyposis, MYH-associated polyposis, multiple endocrine neoplasia, von Hippel-Lindau. Here we report disclosure processes, manifestation of AF-related disease, outcomes and costs. "


Disclaimer: Articles listed in the Public Health Genomics and Precision Health Knowledge Base are selected by the CDC Office of Public Health Genomics to provide current awareness of the literature and news. Inclusion in the update does not necessarily represent the views of the Centers for Disease Control and Prevention nor does it imply endorsement of the article's methods or findings. CDC and DHHS assume no responsibility for the factual accuracy of the items presented. The selection, omission, or content of items does not imply any endorsement or other position taken by CDC or DHHS. Opinion, findings and conclusions expressed by the original authors of items included in the update, or persons quoted therein, are strictly their own and are in no way meant to represent the opinion or views of CDC or DHHS. References to publications, news sources, and non-CDC Websites are provided solely for informational purposes and do not imply endorsement by CDC or DHHS.

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