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Black athlete electrocardiographic repolarization pattern.

Michael J Hermelin1, Jordan M Prutkin2

  • 1Department of Internal Medicine, University of Washington, Seattle, WA, United States.

Journal of Electrocardiology
|July 13, 2018
PubMed
Summary
This summary is machine-generated.

Accurate electrocardiogram (ECG) interpretation is vital for athletes. A normal repolarization pattern in black athletes, including specific J-point elevation and T-wave inversions, can be mistaken for serious heart conditions.

Keywords:
AbnormalitiesElectrocardiogramHypertrophic cardiomyopathyRepolarizationScreeningSports cardiology

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Area of Science:

  • Cardiology
  • Sports Medicine
  • Medical Diagnostics

Background:

  • Electrocardiogram (ECG) screening for sudden cardiac death in athletes is debated.
  • Accurate interpretation of ECGs is crucial when screening is performed.
  • A normal repolarization pattern in black athletes is increasingly recognized.

Purpose of the Study:

  • To describe the normal black athlete repolarization pattern.
  • To differentiate this normal variant from pathological T-wave inversions.
  • To prevent unnecessary testing and sports restrictions.

Main Methods:

  • Analysis of ECG findings in black athletes.
  • Comparison of specific ECG markers between normal variants and cardiomyopathies.
  • Identification of key differentiating features.

Main Results:

  • The normal black athlete repolarization pattern occurs in 5-15% of individuals.
  • This pattern includes J-point elevation, convex ST-segment elevation, and T-wave inversions in leads V1-V4.
  • Combination of J-point elevation >1mm and T-wave inversions limited to V1-V4 excludes cardiomyopathy.

Conclusions:

  • Recognizing the normal black athlete repolarization pattern is essential.
  • This pattern should not be confused with T-wave inversions indicative of hypertrophic or arrhythmogenic right ventricular cardiomyopathy.
  • Correct identification avoids unnecessary investigations and sports disqualification.