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Table 1 Baseline clinical characteristics and right ventricular function parameters of patients with repaired tetralogy of Fallot and controls

From: Global and regional right ventricular mechanics in repaired tetralogy of Fallot with chronic severe pulmonary regurgitation: a three-dimensional echocardiography study

Characteristics rToF (n = 33) Controls (n = 30)
Age (years) 20 ± 8 21 ± 6
Female, n (%) 19 (58) 19 (63)
Body surface area (m2) 1.6 ± 0.2 1.8 ± 0.3*
LV end-diastolic volume (ml/m2) 75 ± 13 65 ± 12**
LV end-systolic volume (ml/m2) 32 ± 7 25 ± 6***
LV ejection fraction (%) 58 ± 4 62 ± 4**
RV systolic pressure (mmHg) 32 ± 7 21 ± 5 **
RV free-wall S′ (cm/s) 10 ± 2 15 ± 2**
TAPSE (mm) 18 ± 3 25 ± 4**
RV fractional area change (%) 37 ± 5 49 ± 7**
RV end-diastolic volume (ml/m2) 133 ± 34 52 ± 18**
RV end-systolic volume (ml/m2) 74 ± 24 24 ± 10**
RV ejection fraction (%) 45 ± 6 55 ± 5**
Two-dimensional RV strain rToF (n = 29) Controls (n = 28)
RV global LS (%) -20.0 ± 2.3 -24.9 ± 3**
RV free-wall LS (%) -19.8 ± 3 -29.4 ± 3.9**
RV septal LS (%) -18.7 ± 6 -19.7 ± 2.0
Age (months) at surgical repair 8 ± 11 -
Duration (years) from the surgery to the time of study recruitment 18.6 ± 7.3 -
Type of surgery   
Transannular patch 25 (76%) -
Infudibulectomy 4 (12%) -
Unknown 4 (12%) -
  1. LS longitudinal strain, LV left ventricular, rToF repaired tetralogy of Fallot, RV right ventricular, TAPSE tricuspid annular plane systolic excursion. *p < 0.05, **p < 0.01, ***p < 0.001