[Percutaneous stented pulmonary valve implantation]

Area of Science:

• Cardiovascular Surgery
• Interventional Cardiology
• Biomedical Engineering

Context:

• Congenital cardiac malformations frequently affect the right ventricular outflow tract.
• Biological valved conduits have limited longevity, leading to graft degeneration and right ventricular failure.
• Young patient age necessitates repeat surgeries, driving innovation in less invasive treatments.

Purpose:

• To evaluate the safety and efficacy of percutaneous stented valve implantation (PPVR) for right ventricular outflow tract reconstruction.
• To assess hemodynamic and clinical outcomes in patients treated with PPVR.
• To determine the need for reintervention following PPVR.

Summary:

• A retrospective study examined 13 patients (mean age 26 years) who underwent PPVR for conduit dysfunction (stenosis/regurgitation).
• Immediate hemodynamic improvement was observed, with significant reduction in pressure gradients and full valvular competence.
• No reinterventions were required at a mean follow-up of 141 days, indicating a safe and effective procedure.

Impact:

• PPVR provides significant hemodynamic and clinical improvement in patients with right ventricular outflow tract malformations.
• This minimally invasive approach is safe and effective, even in a low-volume setting.
• PPVR represents a promising alternative to repeat open-heart surgery for this patient population.