Validation of a New Risk Score for Predicting Post-discharge Cardiovascular Events in Patients With Acute Coronary Syndrome

coarctation was repaired by placement of a 39-mm covered CP stent premounted on a 14 40 mm Maxi LD valvuloplasty balloon, with overdilation of the distal third of the stent with a 16 40 mm Maxi LD balloon. Postprocedure angiography showed a positive outcome, with a residual gradient of 2 mmHg (Figure 2B). The patient was kept under observation for 48 hours before discharge, without incident. During follow-up at 3 months postimplantation, computed tomography with contrast showed a normally positioned 38-mm stent, beginning 5 mm distal to the single trunk of the ascending aorta that opens to the supra-aortic vessels (Figure 2C). No further intervention was required during 12 months of follow-up. To our knowledge, this is the first case report of stent placement in a pediatric patient to treat coarctation of a type B persistent fifth aortic arch, associated with interruption of the fourth aortic arch. The patient required no reintervention during the first 12 months of follow-up. We believe that stent angioplasty is a safe and successful treatment for this type of anatomy and should be considered as an alternative to surgery.