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Last Posted: Aug 18, 2022
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Diagnostic yield and clinical relevance of expanded genetic testing for cancer patients.
Ceyhan-Birsoy Ozge et al. Genome medicine 2022 8 (1) 92

Genetic testing (GT) for hereditary cancer predisposition is traditionally performed on selected genes based on established guidelines for each cancer type. Recently, expanded GT (eGT) using large hereditary cancer gene panels uncovered hereditary predisposition in a greater proportion of patients than previously anticipated. We sought to define the diagnostic yield of eGT and its clinical relevance in a broad cancer patient population over a 5-year period.

Experiences of individuals with a variant of uncertain significance on genetic testing for hereditary cancer risks: a mixed method systematic review.
Gould Danielle et al. Journal of community genetics 2022 7

A total of 18 studies met the inclusion criteria. Studies included in this review identified a range of emotional reactions to a VUS result, a general lack of understanding of a VUS result and its implications, frustration with a lack of healthcare provider knowledge, and a need for clear communication with healthcare providers.

Cost-effectiveness frameworks for comparing genome and exome sequencing versus conventional diagnostic pathways: A scoping review and recommended methods.
Ferket Bart S et al. Genetics in medicine : official journal of the American College of Medical Genetics 2022 7

We recommend the following considerations for each clinical scenario. For prenatal testing, performing comparative analyses of costs of ES strategies and postpartum care, as well as genetic diagnoses and pregnancy outcomes. For early diagnosis in pediatrics, modeling quality-adjusted life years (QALYs) and costs over =20 years for rapid turnaround GS/ES. For hereditary cancer syndrome testing, modeling cumulative costs and QALYs for the individual tested and first/second/third-degree relatives. For tumor profiling, not restricting to treatment uptake or response and including QALYs and costs of downstream outcomes. For screening, modeling lifetime costs and QALYs and considering consequences of low penetrance and GS/ES reanalysis.

Point/Counterpoint: Is It Time for Universal Germline Genetic Testing for all GI Cancers?
Hampel Heather et al. Journal of clinical oncology : official journal of the American Society of Clinical Oncology 2022 6 JCO2102764

Herein, we debate the pros and cons of offering germline multigene panel testing to all patients diagnosed with any GI cancer. The authors agree that it may just be a matter of time before germline multigene panel testing is offered to all patients with cancer; however, this article will highlight some of the benefits, risks, and limitations of this approach so that research can help fill some of the gaps to ensure that genetic medicine continues to be implemented in ways that improve real-world patient care and outcomes.

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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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