Coarctation of the aorta: management, indications for intervention, and advances in care

Area of Science:

• Cardiology
• Interventional Cardiology
• Congenital Heart Disease

Background:

• Coarctation of the aorta (CoAo) is a significant congenital heart defect, accounting for 9% of cases.
• Balloon angioplasty is a traditional endovascular treatment for native and recurrent CoAo in adults.
• Advancements in stent technology, particularly covered stents, have expanded percutaneous treatment options.

Purpose of the Study:

• To evaluate the efficacy of covered stents in managing native and post-surgical coarctation of the aorta.
• To compare the hemodynamic results and long-term benefits of stenting versus traditional angioplasty.
• To explore the potential of biodegradable stents in revolutionizing coarctation management.

Main Methods:

• Review of current literature on endovascular treatment of coarctation of the aorta.
• Analysis of outcomes associated with covered stent implantation.
• Discussion of emerging technologies like biodegradable stents.

Main Results:

• Stent implantation yields superior hemodynamic results, including greater acute diameter gain and sustained long-term benefit.
• Stenting reduces the incidence of aneurysm formation compared to other methods.
• Biodegradable stents show promise in decreasing restenosis rates due to scaffold degradation within six months.

Conclusions:

• Covered stents represent an advancement in the percutaneous management of adult coarctation of the aorta.
• Biodegradable stents may offer future improvements, potentially reducing the need for surgical repair in select cases.
• Surgical repair remains the preferred approach for infants and complex CoAo lesions, while stenting is suitable for focal, uncomplicated adult disease.