Coarctation of aorta intervention: When covered stents should have been first choice?

Abstract

Coarctation of aorta (CoA) is one of the common congenital heart diseases. The two approaches for intervention in CoA include surgical and transcatheter (TC). Out of the two TC interventions available, stenting has been proved better than balloon angioplasty. We have two types of stents; the conventional ones – balloon expandable and the covered stent grafts. The elective covered stent implantation in all CoA has not offered any advantage. However, there are peculiar situations, apart from acute aortic complications, when they should be considered the first choice. We describe our experience of three cases of coarctation stenting, in which covered stenting should have been the preferred choice. A 32-year-old female with Turner's syndrome and severe CoA developed dissection after balloon angioplasty which was successfully managed with a covered stent. A 27-year-old female with near atresia of aorta was managed with balloon expandable stent which remained underexpanded despite post dilatation. A 17-year-old girl with severe CoA and patent ductus arteriosus (PDA) was managed with balloon angioplasty for the CoA and Amplatzer Duct Occluder I for the PDA. However, she developed re-coarctation in 6 months which was managed with a covered stent. Not all CoA requires the covered stents, but there are certain “high risk” CoA which require covered stent as first choice.

Keywords

• aortic dissection
• atresia of aorta
• coarctation of aorta
• covered stent
• turner's syndrome