Retrograde percutaneous repair of aortic coarctation utilizing trans-septal puncture in patients with complex anatomy.

Coarctation of the aorta (COA) is one of the more common congenital anomalies, occurring in four in ten thousand live births and accounting for five to eight percent of all congenital heart defects. COA lesions can be challenging to treat percutaneously, especially if complex vascular anatomy is a barrier to crossing the lesion. We present two cases of COA that utilized a trans-septal approach to cross the lesion in anterograde fashion, subsequently facilitating retrograde stenting of the lesions after snaring and externalizing the wire. In both cases, the trans-septal approach was employed because traditional femoral and radial approaches failed due to complex anatomy, and the trans-septal approach allowed for effective intervention without the need for surgery.