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Published on: January 8, 2020
Risk stratification and epidemiology of sudden death
Sri Sundaram1, Jeffrey J Goldberger
1Feinberg School of Medicine, Northwestern University, Division of Cardiac Electrophysiology, 251 East Huron, Feinberg Pavilion 8-542, Chicago, IL 60611, USA.
Insights
Sudden cardiac death is a major cause of mortality. This review examines the epidemiology of sudden cardiac death and risk stratification to identify patients who may benefit from an implantable cardioverter defibrillator (ICD).
Area of Science:
- Cardiology
- Preventive Medicine
- Public Health
Background:
- Sudden cardiac death (SCD) results in approximately 400,000 deaths annually in the United States.
- Survival rates for individuals experiencing cardiac arrest are critically low.
- There is a growing emphasis on primary prevention strategies for SCD due to low survival probabilities.
Purpose of the Study:
- To review the epidemiology of sudden cardiac death.
- To evaluate risk stratification approaches for identifying patients at high risk for SCD.
- To determine which populations are most likely to benefit from implantable cardioverter defibrillators (ICDs).
Main Methods:
- Literature review of epidemiological data on SCD.
- Analysis of various clinical trials investigating risk stratification methods.
- Assessment of the effectiveness of ICDs in preventing fatal arrhythmic episodes.
Main Results:
- SCD remains a significant public health concern with high mortality.
- Risk stratification strategies are crucial for identifying at-risk individuals.
- Implantable cardioverter defibrillators (ICDs) show promise in preventing SCD.
Conclusions:
- Effective risk stratification is essential for primary prevention of SCD.
- Identifying high-risk populations can guide the appropriate use of ICDs.
- Further research is needed to optimize SCD prevention strategies.
Abstract:
Recent data from the Centers for Disease Control and Prevention show that sudden cardiac death accounts for approximately 400,000 deaths annually in this country. The survival rate for these patients is dismal. Because of the low probability of survival from a cardiac arrest, there has been an increasing focus on primary prevention. The implantable cardioverter defibrillator (ICD) is a highly effective treatment to abort potentially fatal arrhythmic episodes. Thus, various trials have been conducted to determine methods to best identify patients at high risk for sudden arrhythmic death. This review focuses on the epidemiology of sudden cardiac death and risk stratification approaches that have been tested to determine whether they can identify populations likely to benefit from an ICD.
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