Table 2

Demographics, clinical, electrocardiographic and echocardiographic characteristics of patients with left ventricular non-compaction (n=75)*

Age at diagnosis (years)45.9±18.9
Sex male (%)69.0
Ethnicity (%)
Family history of
 SCD (%)11.8
 Cardiomyopathy (%)7.9
Symptoms (%)67.0
 NYHA functional class III/IV (%)25
Systolic BP (mm Hg)121±22.4
Diastolic BP (mm Hg)73.3±15.8
Intracardiac defibrillator in situ (%)13
Complications (%)
 Arrhythmias (NSVT/VT)15.8
 Heart failure44.7
 Left ventricular thrombus6.6
 Stroke/pulmonary embolus9.2
Electrocardiographic parameters (%)
 LVH (Sokolow)58.3
 LA enlargement28.8
 Left axis deviation38.6
 Inverted T waves30.5
  T-wave inversion in V1–V44.0
  T-wave inversion in inferior leads20.3
  T-wave inversion in lateral leads28.8
 Deep T-wave inversion17.0
 ST segment depression5.3
 Pathological Q-waves1.7
Echocardiographic parameters
 Ao (mm)30.2±5.7
 LA (cm2)21.4±5.8
 LVED (mm)57.8±11.7
 Max-LVWT (mm)10.7±2.0
 EF (%)46.3±19.3
 S′ septal wall6.4±1.7
 S′ lateral wall7.0±2.5
  • *Data are expressed as mean±SD.

  • Ao, aortic diameter; BP, blood pressure; E′, early diastolic annular velocity; E/A, ratio of early to late diastolic mitral valve inflow velocity; E/E′, ratio of peak early diastolic mitral inflow velocity to peak early diastolic mitral annular velocity; LA, left atrium; LBBB, left bundle branch block; LVED, left ventricular end-diastolic diameter; LV EF, LV ejection fraction; LVH, left ventricular hypertrophy; LVM, left ventricular mass; LVNC, left ventricular non-compaction; Max-LVWT, maximal left ventricular wall thickness; NSVT/VT, Non-sustained ventricular tachycardia/ventricular tachycardia; NYHA, New York Heart Association; SCD, sudden cardiac death; S, systolic annular peak velocity.