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Familial cardiomyopathies: significant causes of heart failure
1Kaiser Sunnyside Medical Center, Cardiology Department, 10180 SE Sunnyside Road, Clackamas, OR 97015-9303, USA. kathy.a.crispell@kp.org
Insights
Familial dilated cardiomyopathies (FDCMs) are under-recognized and cause significant heart failure. This review highlights genetic insights and screening strategies for inherited heart conditions.
Area of Science:
- Cardiology
- Genetics
- Molecular Biology
Background:
- Familial dilated cardiomyopathies (FDCMs) represent a substantial portion of idiopathic dilated cardiomyopathies, yet their clinical significance is often underestimated.
- FDCMs are a leading cause of heart failure and related complications among inherited cardiomyopathies.
Purpose of the Study:
- To update clinicians on the latest molecular-genetic findings in inherited cardiomyopathies.
- To emphasize the clinical manifestations and the critical role of screening for FDCMs.
- To provide practical guidance on implementing screening protocols for inherited cardiomyopathies.
Main Methods:
- Review of significant molecular-genetic data related to inherited cardiomyopathies.
- Discussion of clinical presentations of major inherited cardiomyopathies.
- Analysis of the importance and methods of clinical and genetic screening.
Main Results:
- FDCMs are a significant cause of heart failure, often overlooked by clinicians.
- Molecular-genetic advancements have elucidated key pathways involved in FDCMs.
- Effective screening strategies can identify at-risk individuals and families.
Conclusions:
- Increased awareness and application of genetic screening are crucial for managing FDCMs.
- Early detection through genetic and clinical screening can mitigate the burden of heart failure.
- Clinicians should integrate current evidence on inherited cardiomyopathies into their practice.
Abstract:
Familial dilated cardiomyopathies (FDCMs) account for about one third of idiopathic dilated cardiomyopathies, yet clinicians under-appreciate their prevalence. Among the inherited cardiomyopathies, FDCMs account for the greatest burden of heart failure and its associated morbidities. This paper summarizes significant molecular-genetic data, and discusses clinical manifestations of the major inherited cardiomyopathies, and the importance of clinical and genetic screening. Suggestions are provided as to how to proceed with screening. The purpose of this paper is to update clinicians about this rapidly growing scientific field, and to encourage application of current evidence to their practices.