Progressive right ventricular dilatation after repair of tetralogy of Fallot: myth or reality? A single center evaluation by repeat cardiovascular magnetic resonance over 37 months

Results No patient had RV outflow tract obstruction or undergone RV outflow tract intervention. TA patients were significantly younger: TA 17±10 vs. SV 22±9 vs. IN 28±11 years, p=0.005. RV enddiastolic volume index (RVEDVI) and PR did not change significantly in the whole group: RVEDVI: 118±23 vs. 119±23 ml/m, p=0.684. PR: 32±11 vs. 32±11%, p=0.772. There was no significant difference of RVEDVI in each group between first and last CMR: TA 120±21 vs. 122±22 ml/m, p=0.516; SV 112±23 vs. 111±23ml/m, p=0.700; IN 123±28 vs. 123±25ml/m, p=0.936. RVEDVI at last CMR and change of RVEDVI per year did not differ between groups: TA 122±22 vs. SV 111±23 vs. IN 123±25ml/m, p=0.301; change RVEDVI: TA 0.4±9.3 vs. SV -0.4±7.3 vs. IN -2.2±13.1ml/m/y, p=0.742.