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Published on: August 8, 2022
Perspectives on sudden death prevention in hypertrophic cardiomyopathy
Georgios K Efthimiadis1, Thomas Zegkos, Soultana Meditskou
1From the *Cardiomyopathies Center, 1st Cardiology Department, AHEPA University Hospital, Aristotle University of Thessaloniki, Thessaloniki, Greece; and †Laboratory of Histology and Embryology, Aristotle University of Thessaloniki, Thessaloniki, Greece.
Insights
Sudden death (SD) is a primary concern in hypertrophic cardiomyopathy (HCM), especially in young individuals. This review critically analyzes SD risk factors and prevention strategies in HCM patients.
Area of Science:
- Cardiology
- Genetics
Background:
- Hypertrophic cardiomyopathy (HCM) is a leading cause of sudden death (SD) in young individuals, including athletes.
- SD can be the initial presentation of HCM, posing significant clinical challenges.
Purpose of the Study:
- To critically appraise current knowledge on sudden death (SD) in hypertrophic cardiomyopathy (HCM).
- To analyze traditional and controversial risk factors for SD in HCM.
- To discuss the need for improved risk stratification and future research directions for SD prevention in HCM.
Main Methods:
- Comprehensive review of contemporary research findings on SD in HCM.
- Critical appraisal of challenging problems and current speculations regarding SD in HCM.
- Analysis of traditional and controversial risk factors for SD.
Main Results:
- HCM is the primary cause of SD in individuals under 35.
- Annual incidence of SD in unselected HCM populations is approximately 0.7%, with total cardiovascular mortality around 1.4%.
Conclusions:
- There is a critical need for a unique and accurate factor for SD risk stratification in HCM.
- Current understanding of SD in HCM requires further investigation to improve prevention strategies.
- Future research should focus on addressing challenging problems and current speculations to enhance patient outcomes.
Abstract:
Sudden death (SD) is the most dramatic event in hypertrophic cardiomyopathy (HCM), often representing the first clinical manifestation of the disease, and the first concern of the clinicians who take care of such patients. HCM is now recognized as the primary cause of SD in young persons (<35 years of age), including trained athletes. Current data in unselected HCM patient populations report an approximate 0.7% per year incidence of SD, with the total cardiovascular mortality being around 1.4% annually. This review, incorporating contemporary research findings, addresses the major aspects of SD and its prevention in HCM. The traditional risk factors and other controversial risk factors for SD or the arbitrators for that event are thoroughly analyzed and the need for the development of a unique and accurate factor for SD risk stratification is discussed. Rather than enumerating clinical studies and guidelines, challenging problems concerning all aspects of SD in HCM, are critically appraised, highlighting current speculations and recommending future directions.
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