Ductal stenting for acute thrombosis of modified Blalock-Taussig shunts.

transannular patch was placed and stent flow was interrupted with a clip. A 1500-g neonate diagnosed with pulmonary atresia with ventricular septal defect, right aortic arch, ductus left and left superior vena cava, was administered prostaglandin to 2 months and underwent a right MBT shunt. Prostaglandin perfusion was restarted at 24 h as saturation was <65%. Echocardiography detected no flow in the BTM and confirmed the permeability of the ductus. The FA catheterization showed thrombosis of the shunt, a right aortic arch and left ductus originating from the left subclavian artery, with a long and tortuous route to the left pulmonary artery (Figure 1). The attempt to cross the ductus caused a severe spasm (Figure 2A). A right coronary guiding catheter was used to implant a SprinterRX Driver 3.5/15 (Medtronic ®) stent together with a ProKinetic Energy 3.5/20 (Biotronic AG ®) stent which Ductal Stenting for Acute Thrombosis of Modified BlalockTaussig Shunts