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Distinctive ECG patterns in healthy black adults.

Brooks Walsh1, Peter W Macfarlane2, Jordan M Prutkin3

  • 1Bridgeport Hospital Department of Emergency Medicine, 267 Grant St, Bridgeport, CT, USA.

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|June 24, 2019
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Summary
This summary is machine-generated.

Six electrocardiogram (ECG) patterns are more common in healthy Black adults and may mimic serious heart conditions. Awareness of these ECG findings can prevent misdiagnosis and ensure appropriate cardiac care.

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Area of Science:

  • Cardiology
  • Electrocardiography
  • Population Health

Background:

  • Electrocardiograms (ECGs) reveal distinct patterns that vary across different populations.
  • Certain ECG findings are more prevalent in healthy Black adults compared to White adults.
  • These prevalent ECG patterns can be mistaken for signs of serious cardiac disease.

Purpose of the Study:

  • To identify and describe six specific ECG patterns frequently observed in healthy Black adults.
  • To differentiate benign ECG variations from potentially pathological findings.
  • To inform clinicians about these patterns to prevent misdiagnosis and unnecessary interventions.

Main Methods:

  • Analysis of ECG data from a cohort of healthy Black and White adults.
  • Comparison of the prevalence of specific ECG patterns between the two groups.
  • Review of existing literature on ECG interpretation and population-specific variations.

Main Results:

  • Six ECG patterns, including higher QRS voltage, anterior ST-segment elevation, early repolarization, persistent juvenile T-wave inversion, anterior T-wave inversion with J-point elevation, and lateral T-wave inversion, were found more frequently in Black adults.
  • While some patterns (e.g., LVH criteria, benign anterior STE, ER, juvenile TWI, anterior TWI with J-point elevation in athletes) are generally benign in Black individuals, lateral TWI requires further investigation.
  • These patterns can mimic serious conditions like ST-elevation myocardial infarction (STEMI), arrhythmogenic right ventricular cardiomyopathy (ARVC), and hypertrophic cardiomyopathy.

Conclusions:

  • Increased awareness of these common ECG patterns in Black adults is crucial for accurate diagnosis.
  • Distinguishing these benign variations from pathological findings can prevent unnecessary medical interventions.
  • Further research may be needed to fully understand the clinical significance and risk stratification of certain ECG patterns in diverse populations.