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Published on: August 8, 2022
Genetic Testing and Counselling in Hypertrophic Cardiomyopathy: Frequently Asked Questions
Francesca Girolami1, Alessia Gozzini1, Eszter Dalma Pálinkás2,3
1Pediatric Cardiology Unit, Meyer Children's Hospital IRCCS, 50139 Florence, Italy.
Insights
Genetic testing and counseling are crucial for diagnosing hypertrophic cardiomyopathy (HCM) and guiding treatment. Cardiologists and geneticists must collaborate to interpret complex genetic data and address patient concerns effectively.
Area of Science:
- Cardiovascular Genetics
- Medical Diagnostics
Background:
- Genetic testing and counseling are essential components of the hypertrophic cardiomyopathy (HCM) diagnostic process.
- These tools aid in confirming the diagnosis, differentiating HCM from similar conditions, and personalizing treatment strategies.
- Genetic testing facilitates cascade testing within families to identify at-risk relatives.
Purpose of the Study:
- To highlight the integral role of genetic counseling and testing in the diagnosis and management of HCM.
- To discuss the complexities introduced by Next Generation Sequencing (NGS) in interpreting genetic alterations.
- To present and address frequently asked questions from HCM patients based on extensive clinical experience.
Main Methods:
- Review of genetic counseling and testing protocols for hypertrophic cardiomyopathy.
- Discussion of the collaborative role between cardiologists and geneticists in evaluating genetic variants.
- Analysis of patient-reported questions and concerns over a 20-year period.
Main Results:
- Next Generation Sequencing (NGS) has increased the complexity of genetic data interpretation in HCM.
- Effective collaboration between cardiologists and geneticists is vital for accurate pathogenicity assessment.
- Patient communication and addressing concerns are critical for realizing the benefits of genetic testing.
Conclusions:
- Genetic counseling and testing are indispensable for comprehensive HCM management.
- Interdisciplinary collaboration and clear patient communication are paramount for successful genetic testing outcomes.
- Addressing patient questions and concerns enhances the utility of genetic information in HCM care.
Abstract:
Genetic counselling and genetic testing in hypertrophic cardiomyopathy (HCM) represent an integral part of the diagnostic algorithm to confirm the diagnosis, distinguish it from phenocopies, and suggest tailored therapeutic intervention strategies. Additionally, they enable cascade genetic testing in the family. With the implementation of Next Generation Sequencing technologies (NGS), the interpretation of genetic data has become more complex. In this regard, cardiologists play a central role, aiding geneticists to correctly evaluate the pathogenicity of the identified genetic alterations. In the ideal setting, geneticists and cardiologists must work side by side to diagnose HCM as well as convey the correct information to patients in response to their many questions and concerns. After a brief overview of the role of genetics in the diagnosis of HCM, we present and discuss the frequently asked questions by HCM patients throughout our 20-year genetic counselling experience. Appropriate communication between the team and the families is key to the goal of delivering the full potential of genetic testing to our patients.
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