No abstract

Malfunctioning, dysplasia, or absence of the pulmonary valve or the right ventricular outflow tract (RVOT) is one of the major components of the cardiac physiology in many congenital heart defects [1][2][3][4]. Surgical correction thereby includes some form of repair or replacement of the native RVOT by biological valves such as homograft, bioprosthesis or xenografts (i.e. Contegra 1conduits; Medtronic Inc., Minneapolis, MN, USA) [5]. The repaired or replaced pulmonary valve often becomes dysfunctional later on and surgical revisions of the RVOT with pulmonary valve replacement usually within 10 years after the primary intervention are necessary [6]. Various valved conduits are available for the restoration of right ventricle-topulmonary artery (RV-PA) continuity with inherent advantages and limitations [5].

DBT is a safe and feasible technique for aortic stent implantation even at high-cardiac output. Other additional techniques for stent placement are not necessary to obtain a stable final position in the target region.