ArticlePediatric cardiology2026
MRI predictors of diastolic dysfunction and right ventricle end diastolic pressure in repaired tetralogy of Fallot.
Article in Pediatric cardiology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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Authors and funding
11 authors.
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Abstract
We sought to identify cardiac magnetic resonance (CMR) predictors of RV end-diastolic pressure (RVEDP) and diastolic dysfunction in patients with repaired Tetralogy of Fallot (rTOF), by simultaneous analysis of atrial and ventricular volume/time (V/t) curves by CMR. CMR was performed in patients who underwent cardiac catheterization (CC). Parameters of diastolic function were obtained by combined analysis of right and left, atrial and ventricular, V/t curves and respective dV/dT curves. Thirty-five patients with rTOF were included in the study (age 32 ± 16 years) and 9 age-matched control group. Patients with RVEDP ≥12 mmHg presented lower right atrial (RA) ejection fraction (14.8 ± 9 vs 21.3 ± 6%; p = 0.02); lower isovolumetric caval vein transit volume (ICVT) (45 ± 17 vs 64.8 ± 24 ml; p = 0.01); higher RA Atrial-Peak Emptying Rate (PER-A) (-144 [-175; -68] vs -72 [-88; -23] ml/s; p = 0.03) and lower RV Atrial-Peak Filling Rate (PFR-A) (81 [37; 146] vs 176 [126; 236] ml/s; p = 0.005) suggestive of an impaired relaxation of RV. Whereas, left Atrium (LA) volume conduit (6 ± 3 vs 4.8 ± 2.4 ml/m
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