Stenting of the Ductus Arteriosus Originating from the Innominate Or Left Subclavian Artery in Patients with a Right Aortic Arch

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Progress in Pediatric Cardiology

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We describe our experience with stenting the patent ductus arteriosusoriginating from the left subclavian artery or innominate artery in patients with a right aortic arch. Patent ductus arteriosus stenting is an alternative to surgical shunt placement in patients with congenital cardiac malformations. Four patients with an elongated patent ductus arteriosus arising from either the left subclavian artery of the innominate artery underwent implantation of multiple stents. The diameter of the stents ranged from 3.5 to 4.5 mm and the length from 8 to 15 mm. Three neonates had tetralogy of Fallot and a right aortic arch, and one 14 month-old patient had discontinuous pulmonary arteries, a right aortic arch, and a ventricular septal defect. In the three neonates with tetralogy of Fallot, we employed an antegrade venous approach. Stent implantation was successful acutely and without complications in all four patients. One patient developed stent restenosisand underwent two additional stent re-dilations 2 months and 5 months after the initial procedure, respectively. The 14 month-old patient underwent planned re-dilation of the stents one month later. All the patients underwent successful complete repair ranging from 149 to 338 days after stent placement. Patent ductus arteriosus stenting in patients with a right aortic arch and a ductus arising from the left subclavian or innominate artery can be performed successfully using multiple stents, particularly in newborns and from a femoral venous approach. Complete repair can be postponed for several months.


Ductus arteriosus; Innominate artery; Left subclavian artery; Right aortic arch; Stent





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