Table 2

Abnormalities discovered on 12-lead ECG in athletes undergoing cardiovascular screening

ECG findingNumberNormal*Phys remod*Abnormal*Confirmed pathology
Single ECG findings
 RBBB81 (13)6 (74)1 (13)0
 LAE42 (50)2 (50)00
 LBBB2002 (100)1 (Myocarditis)
 Total143 (21)8 (58)3 (21)1/14
Multiple ECG findings
 LVH + LAE233 (13)19 (83)1 (4)0
 RBBB + RAE51 (20)4 (80)00
 LVH + TWI302 (67)1 (33)1 (HCM)
 LVH + LAD202 (100)00
 LVH + LAD + LAE101 (100)00
 RVH + RAD101 (100)00
 Total354 (12)29 (82)2 (6)1/35
Cumulative total497 (14)37 (76)5 (10)2/49
  • Values in parentheses are percentages.

  • * Normal, physiological remodelling and abnormal as defined by transthoracic echocardiography.12

  • Pathology confirmed on subsequent non-investigational testing.

  • HCM, hypertrophic cardiomyopathy; LAD, left axis deviation; LAE, left atrial enlargement; LBBB, left bundle branch block; LVH, left ventricular hypertrophy; Phys Remod, physiological remodelling; RAD, right axis deviation; RAE, right atrial enlargement; RBBB, right bundle branch block; RVH, right ventricular hypertrophy; TWI, T wave inversions.