[Omega-3 fatty acids in cardiology. Latest developments]

Area of Science:

• Cardiology
• Nutritional Science
• Preventive Medicine

Background:

• Cardiological guidelines recommend omega-3 fatty acids (EPA and DHA) for post-myocardial infarction care and cardiovascular event prevention.
• Epidemiological studies show an inverse correlation between omega-3 fatty acid levels and sudden cardiac death risk.
• The omega-3 index, reflecting EPA and DHA concentrations in erythrocytes, serves as a quantifiable risk factor.

Purpose of the Study:

• To highlight the significance of the omega-3 index as a risk factor for sudden cardiac death.
• To emphasize the role of omega-3 fatty acid supplementation in mitigating cardiovascular risk.
• To underscore the importance of accurate omega-3 index measurement.

Main Methods:

• Analysis of epidemiological data correlating omega-3 index with sudden cardiac death incidence.
• Review of interventional studies assessing the impact of omega-3 fatty acid intake on the omega-3 index.
• Evaluation of the omega-3 index as a predictive biomarker for cardiovascular events.

Main Results:

• A higher omega-3 index (> 8%) is associated with a 90% reduction in sudden cardiac death risk compared to lower levels (< 4%).
• Omega-3 fatty acid supplementation effectively increases the omega-3 index.
• The omega-3 index is a validated risk factor for sudden cardiac death.

Conclusions:

• The omega-3 index is a crucial biomarker for assessing cardiovascular risk, particularly for sudden cardiac death.
• Increasing the omega-3 index through dietary or supplemental intake of EPA and DHA is a viable strategy for cardiovascular risk reduction.
• Accurate determination of the omega-3 index in certified laboratories is recommended due to analytical considerations.