Valve repair and replacement in children

Area of Science:

• Pediatric Cardiology
• Cardiovascular Surgery
• Interventional Cardiology

Background:

• Valvular heart disease in children presents complex therapeutic challenges.
• Significant advancements in treatment strategies have emerged over the last two decades.
• Congenital heart defects affecting heart valves require specialized pediatric care.

Purpose of the Study:

• To review recent progress in the therapeutic management of pediatric valvular heart disease.
• To highlight key innovations and persistent challenges in treating various valve anomalies in children.
• To discuss the evolving role of interventional and surgical techniques.

Main Methods:

• Review of interventional catheterization techniques, including balloon valvuloplasty.
• Analysis of surgical approaches such as cryopreserved homografts and the pulmonary autograft (Ross) technique.
• Evaluation of current treatment strategies for specific valve conditions like pulmonic stenosis, aortic stenosis, tricuspid anomalies, and mitral valve defects.

Main Results:

• Balloon valvuloplasty is the primary treatment for critical pulmonic stenosis in infants.
• Therapeutic catheterization for neonatal aortic stenosis remains debated.
• Cryopreserved homografts and the Ross procedure have shown promise for right ventricular outflow tract reconstruction and aortic valve replacement in pediatric patients.
• Mitral insufficiency repair is effective, but congenital mitral stenosis in young children remains difficult to treat.

Conclusions:

• Pediatric valvular heart disease therapy has seen substantial progress, particularly with interventional catheterization and advanced surgical techniques.
• While many conditions show improved outcomes, challenges persist, especially in treating complex tricuspid valve anomalies and congenital mitral stenosis in infants.
• Continued innovation is needed to address remaining therapeutic limitations in pediatric valvular heart disease.