[ECG diagnostics in competitive athletes. Current implications for preparticipation screening].

Area of Science:

• Sports Cardiology
• Cardiovascular Physiology
• Clinical Electrocardiography

Context:

• Sudden cardiac death in young athletes often stems from undiagnosed heart conditions.
• Electrocardiogram (ECG) alterations can indicate risk but are challenging to interpret due to training-related changes.
• Misinterpretation can lead to unnecessary disqualification or missed diagnoses.

Purpose:

• To provide clear guidelines for interpreting ECGs in competitive athletes.
• To differentiate physiological training adaptations from pathological cardiac disorders.
• To aid in the prevention of sudden cardiac death in this population.

Summary:

• Common ECG findings like sinus bradycardia and early repolarization are often normal physiological adaptations in athletes.
• Pathological ECG alterations, including repolarization abnormalities and prolonged QT intervals, warrant further investigation.
• Accurate ECG interpretation is vital for risk stratification and management.

Impact:

• Facilitates appropriate medical evaluation and management of young athletes.
• Reduces unnecessary disqualifications from competitive sports.
• Enhances the prevention of sudden cardiac death in athletic populations.