Catheter intervention for congenital heart disease at risk of circulatory failure

Area of Science:

• Cardiology
• Pediatric Cardiology
• Interventional Cardiology

Background:

• Congenital heart disease (CHD) can lead to heart failure due to ventricular overload or dysfunction.
• Systemic left ventricle failure may occur from increased afterload (e.g., aortic stenosis, coarctation) or large shunts (e.g., VSD, PDA).
• Postoperative right ventricle dysfunction is a risk in patients with residual obstruction or volume overload.

Purpose of the Study:

• To review the role of percutaneous interventions in managing heart failure secondary to congenital heart disease.
• To highlight the efficacy of catheter-based therapies in improving hemodynamics and ventricular function.
• To discuss current interventional strategies for various forms of pediatric heart failure.

Main Methods:

• Review of percutaneous techniques including balloon dilation, device closure, angioplasty, stenting, and valve implantation.
• Focus on interventions for aortic stenosis, coarctation, ventricular septal defects, patent ductus arteriosus, and pulmonary valve issues.
• Discussion of approaches for single ventricle physiology and hypoplastic left heart syndrome.

Main Results:

• Balloon dilation of aortic valves is safe and effective in neonates with critical aortic stenosis.
• Device closure of septal defects and patent ductus arteriosus is a viable option for selected infants.
• Pulmonary valve interventions and stenting effectively reduce right ventricular afterload.
• Percutaneously implantable pulmonary valves offer rehabilitation for dysfunctional conduits.
• Catheter interventions optimize hemodynamics in single ventricle patients.

Conclusions:

• Percutaneous interventions are crucial adjuncts in managing heart failure in pediatric CHD.
• These minimally invasive techniques provide effective solutions for various hemodynamic challenges in CHD.
• Optimized hemodynamic management through catheter interventions improves outcomes for complex congenital heart conditions.