Electrocardiographic Features Differentiating Arrhythmogenic Right Ventricular Cardiomyopathy From an Athlete's Heart

  • Maria J. Brosnan
  • , Anneline S.J.M. te Riele
  • , Laurens P. Bosman
  • , Edgar T. Hoorntje
  • , Maarten P. van den Berg
  • , Richard N.W. Hauer
  • , Michael D. Flannery
  • , Jon M. Kalman
  • , David L. Prior
  • , Crystal Tichnell
  • , Harikrishna Tandri
  • , Brittney Murray
  • , Hugh Calkins
  • , Andre La Gerche*
  • , Cynthia A. James
  • *Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

1 Citation (Scopus)

Abstract

Objectives: This study sought to compare electrocardiogram (ECG) variants in athletic and arrhythmogenic right ventricular cardiomyopathy (ARVC) cohorts matched for the confounders of age, sex, and ethnicity. Background: Anterior T-wave inversion (TWIV1−V4) is a common electrocardiographic finding in both athletes and patients with ARVC, and is a frequent conundrum in the setting of pre-participation screening. J-point elevation (JPE) has been proposed as an accurate means of identifying athletes, whereas disease markers, including premature ventricular contractions (PVCs) and low-voltage signals, have been associated with ARVC. Methods: This study examined 200 subjects with TWI V1−V4, including 100 healthy athletes and 100 ARVC patients matched 1:1 for age, sex, and ethnicity (age: 21 ± 5 years for athletes vs. 22 ± 5 years for ARVC patients; 47% male; 97% Caucasian). The presence of TWI, JPE, PVCs, and left ventricular hypertrophy (LVH) were assessed. Results: JPE was observed in 27% of athletes versus 16% of ARVC patients (p = 0.09). Thus, JPE had poor specificity (27%) and accuracy (60%) in identifying healthy athletes. In contrast, ARVC patients demonstrated a greater prevalence of precordial TWI beyond lead V3 (34% vs. 8%; p < 0.001), inferior TWI (31% vs. 3%; p < 0.001), PVCs (18% vs. 0%; p < 0.001), and lower LVH scores (SV1 + RV5; 19 ± 1 mm vs. 30 ± 1 mm; p < 0.001). These combined factors provided more reliable differentiation between health and disease (specificity 82%, accuracy 81%). Conclusions: PVCs and low QRS voltages are more prevalent among ARVC patients than athletes, whereas JPE is a relatively poor discriminator of health and disease when the confounders of age, sex, and ethnicity are considered.

Original languageEnglish
Pages (from-to)1613-1625
Number of pages13
JournalJACC. Clinical electrophysiology
Volume4
Issue number12
DOIs
Publication statusPublished - 1 Dec 2018

Keywords

  • arrhythmogenic right ventricular cardiomyopathy
  • athlete
  • ECG
  • pre-participation screening
  • T-wave inversion

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