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Table 2 Results from CMR and echocardiography

From: Increased left ventricular myocardial extracellular volume is associated with longer cardiopulmonary bypass times, biventricular enlargement and reduced exercise tolerance in children after repair of Tetralogy of Fallot

  Patients (n = 31) Controls (n = 15) p
CMR
 Ventricular volumetry and pulmonary flow
  RV enddiastolic volume [ml/m2] 148 ± 40 93 ± 13 <0.001
  RV endsystolic volume [ml/m2] 75 ± 23 43 ± 8 <0.001
  RV muscle mass [g/m2] 39.4 ± 9.4 n.a. n.a.
  RV ejection fraction [%] 50 ± 5 53 ± 3 <0.05
  LV enddiastolic volume [ml/m2] 91 ± 12 89 ± 11 0.50
  LV endsystolic volume [ml/m2] 41 ± 8 36 ± 6 <0.05
  LV muscle mass [g/m2] 46 ± 7 49 ± 9 0.29
  LV ejection fraction [%] 55 ± 6 59 ± 4 <0.01
  Pulmonary regurgitation [%] 33 ± 16 n.a. n.a.
 Z-Scores
  RV enddiastolic volume 3.42 (1.52–5.29) −0.11 (−1.17–0.68) <0.001
  RV endsystolic volume 3.65 (1.52–4.51) −0.05 (−0.33–0.98) <0.001
  RV ejection fraction −1.52 (−2.23– −0.69) −1.04 (−1.29– −0.39) <0.05
  LV enddiastolic volume 0.62 ( −0.10–1.36) 0.41 (−0.55–1.59) 0.60
  LV endsystolic volume 1.57 (−0.75–2.30) 1.08 (−0.31–1.65) <0.05
  LV muscle mass −1.89 (−2.90– −0.94) −0.96 (−2.43–0.36) 0.24
  LV ejection fraction −1.29 (−2.51– −0.80) −0.32 (−1.41–0.41) <0.01
Echocardiography
 RVSP [mmHg], n = 19 44 ± 15 n.a. n.a.
 RVOT-gradient [mmHg], n = 29 32 ± 18 n.a. n.a.
 TAPSE [mm], n = 19 16.5 ± 3.5 n.a. n.a.
 Grade of tricuspid insufficiency [n (%)]   n.a. n.a.
  Trivial
  Mild
17 (55 %)
14 (45 %)
  
  1. Data are given as mean ± standard deviation, median (and interquartile range), or frequencies, as appropriate
  2. Abbreviations: LV left ventricle, PT pulmonary trunk, RV right ventricle, RVOT right ventricular outflow tract, RVSP right ventricular systolic pressure, TAPSE tricuspid annular plane systolic excursion