Late Complications After Aortic Coarctation Repair

Aortic coarctation (CoA) is a congenital vascular anomaly characterized by luminal narrowing of the aorta, representing approximately 5-8% of all congenital heart defects, and is frequently associated with a bicuspid aortic valve and additional vascular malformations. The clinical spectrum is broad, ranging from severe neonatal heart failure to asymptomatic systemic hypertension in adulthood, with the severity of presentation directly influencing the timing of diagnosis and therapeutic intervention. Over recent decades, management strategies have transitioned from conventional surgical techniques-such as end-to-end anastomosis, subclavian flap aortoplasty, and patch augmentation-to endovascular modalities including balloon angioplasty and stent implantation, with covered stents now constituting the preferred approach in most cases. Nonetheless, late complications remain clinically significant. Post-coarctation aneurysms (pCoAA), particularly following patch aortoplasty, have been reported in up to 50% of patients and necessitate lifelong imaging surveillance. Re-coarctation persists as a therapeutic challenge, especially in neonates, with recurrence risk influenced by anatomical factors and the initial repair method. Optimal outcomes require an individualized, anatomy-tailored approach that judiciously integrates surgical, endovascular, and hybrid techniques. Lifelong surveillance remains essential to mitigate long-term risks, including systemic hypertension, aneurysm formation, and the need for re-intervention.