Percutaneous transcatheter closure of aorto-right ventricular fistula using the Amplatzer duct occluder

Transcatheter closure of an acquired post-operative aorta to right ventricle shunt in a child with complex univentricular heart

KONAR-Multifunctional^TM VSD Occluder (Lifetech, Shenzhen, China) is one of the most recent additions to the armamentarium of device closure interventions offering special features to tackle complex cardiac anatomies. Herein, we report the first use of the KONAR-MFO in an 8.5-year-old female patient (27 kg/129 cm) with stage III palliated univentricular heart to close an acquired post-operative tunnel-like communication (5 mm long × 2.6 mm large) between the right anterior non-coronary aortic sinus and the rudimentary right ventricular cavity. The shunt was diagnosed two and a half years after bulboventricular foramen surgical enlargement. The 5× 3 mm KONAR-MFO was retrogradely implanted under ultrasound and biplane fluoroscopic guidance. Immediate and 12-month follow-up confirmed successful outcomes with complete shunt closure and preserved aortic valve competence.

Aorta-to-right ventricle neoshunt closure using an Amplatzer Duct Occluder II device

We report the case of a 22-year-old female patient with complex congenital heart disease and multiple cardiac surgeries who came to our attention for right heart failure and hemolysis 3 years after aortic valve replacement surgery. She was diagnosed with aorta-to-right ventricle fistula and was efficiently treated with retrograde implantation of an Amplatzer Duct Occluder II device using three-dimensional multimodality fusion imaging.