[Interventional catheterization management for patients with postoperative residual cardiovascular malformations]

Area of Science:

• Cardiology
• Interventional Cardiology
• Pediatric Cardiology

Background:

• Complex congenital heart defects often present with unrepaired or residual lesions post-surgery.
• These residual issues can lead to significant morbidity and impact patient quality of life.

Purpose of the Study:

• To assess the effectiveness and safety of interventional therapy for complex congenital heart defects.
• To evaluate outcomes in patients with unrepaired or postoperative residual lesions.

Main Methods:

• A cohort of 42 patients (mean age 6 years) underwent interventional procedures between 1998 and 2009.
• Interventions included occlusion of major aorto-pulmonary collateral arteries (MAPCAs), device closure of septal defects, and balloon angioplasty/stenting for stenosis.

Main Results:

• Successful occlusion of 23 MAPCAs in 17 patients.
• Successful device closure in 15 patients with minimal residual shunting in one.
• Significant improvement in exercise capacity and decreased pressure gradients post-angioplasty/stenting, with no major complications or arrhythmias.

Conclusions:

• Interventional therapy offers a safe and effective treatment option for complex congenital heart defects.
• It successfully addresses unrepaired or postoperative residual lesions, improving patient hemodynamics and functional status.