Catheterizational Closure of a Persistent Botallo?s Duct in a Patient After Endovascular Treatment of Aortic Dissection Type B

In patients diagnosed with an acute aortic dissection type B according to the Stanford classification, thoracic endovascular repair (TEVAR) is the primary recommended treatment in cases with a complicated course. The purpose of implanting a stent graft is to close the entry point of the dissection, thus hopefully causing a thrombus to fill the false lumen throughout the whole stent graft, stabilizing the thoracic aortic wall. In our case report, the thrombus unfortunately did not form, the reason being continuous flow through the false lumen due to an undiagnosed persisting Botallo's duct. The solution to this complication was closing the persisting shunt by implanting an Amplatzer septal occluder through the false lumen of the dissected aorta.