Key result
Pulmonary valve replacement in repaired tetralogy of Fallot is linked to ~39% lower RVEDVI.
Why the study?
Pulmonary valve replacement treats pulmonary regurgitation in repaired tetralogy of Fallot to prevent late right ventricular dysfunction, arrhythmias, and sudden death, but midterm outcomes and predictors of adverse clinical outcomes needed evaluation.
Does pulmonary valve replacement improve right ventricular volumes and clinical outcomes in patients with repaired tetralogy of Fallot?
Population
42 patients with repaired tetralogy of Fallot undergoing surgical or transcatheter PVR
Design
Retrospective cohort study
Follow-up
Median 4.7 years
Authors
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PVR-associated RV remodeling in repaired TOF may support volume-based decisions; leaves open long-term clinical benefit without randomized confirmation.
Cohort (n=42)
No
Does pulmonary valve replacement improve right ventricular volumes and clinical outcomes in patients with repaired tetralogy of Fallot?
Absolute Event Rate: 95.1% vs 155.2%
p-value: p=<0.001
Pulmonary valve replacement in repaired tetralogy of Fallot leads to significant and sustained reductions in right ventricular volumes with favorable midterm freedom from adverse clinical outcomes.
He et al. (2022) conducted a cohort in Repaired Tetralogy of Fallot (rTOF) with pulmonary regurgitation (n=42). Pulmonary valve replacement (surgical or transcatheter) vs. Pre-intervention baseline was evaluated on Right ventricular end-diastolic volume index (RVEDVI) in ml/m2 at midterm follow-up (p=<0.001). Pulmonary valve replacement in patients with repaired tetralogy of Fallot significantly reduced right ventricular end-diastolic volume index from 155.2 to 95.1 ml/m2 at midterm follow-up.
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