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Sudden death in athletes: an update

L G Futterman¹, R Myerburg

¹School of Medicine, University of Miami, Jackson Memorial Medical Center, Florida, USA. LFutterm@mednet.med.miami.edu

Sports Medicine (Auckland, N.Z.)

|December 19, 1998

Summary

Sudden cardiac death (SCD) in athletes is rare but tragic, often caused by underlying heart conditions. Identifying at-risk athletes is challenging due to physiological heart changes, making prevention difficult.

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Area of Science:

Cardiology
Sports Medicine
Exercise Physiology

Background:

Sudden cardiac death (SCD) in athletes, though uncommon, is a critical concern.
Exercise-induced SCD is defined by symptoms within one hour of sport participation.
Fatal arrhythmia is the primary mechanism of death in exercise-related SCD.

Observation:

In young athletes (<35), SCD is often linked to hereditary cardiovascular disorders like hypertrophic cardiomyopathy and coronary artery anomalies.
Older athletes (>35) are more prone to SCD due to atherosclerotic cardiac disease.
Distinguishing physiological adaptations of the athlete's heart from pathological conditions is difficult due to altered cardiac function affecting examinations.

Findings:

Effective methods for preventing and screening athletes at risk for SCD remain elusive.
Routine comprehensive screening is impractical and not cost-effective due to limitations in diagnostic procedures and the rarity of SCD.
Assessing family/medical history, cardiac auscultation, and evaluating exercise-induced symptoms are crucial for primary prevention.

Implications:

Current screening methods have limitations in predicting SCD risk in athletes.
Broad recommendations guide the management of athletes with cardiovascular disease.
Further research is needed for reliable methods to identify athletes at risk for SCD.

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