Colegio Argentino de Cardioangiólogos Intervencionistas Revista Argentina de Cardioangiología intervencionista 2250-7531 2313-9307 15 1 2024 03 29 Percutaneous closure of atrial septal defect with a fenestrated device in a high-risk patient. Report of the first case in Argentina 0017 0019 EN Juan Manuel Lange Instituto Cardiovascular Chaco. Chaco, Argentina juanmanuellange@gmail.com Paula Virginia Guiroy Instituto Cardiovascular Chaco. Chaco, Argentina Juan Héctor Guiroy Instituto Cardiovascular Chaco. Chaco, Argentina Iara Taragano Instituto Cardiovascular Chaco. Chaco, Argentina Jesús Damsky Barbosa Instituto Cardiovascular Chaco. Chaco, Argentina. Hospital Pedro Elizalde, CABA, Argentina. Atrial septal defects (ASD) are associated with complications such as pulmonary arterial hypertension (PAH) and left ventricular diastolic dysfunction (LVDD). Closure of complicated ASD is linked to adverse events; among the treatment options we can find the fenestrated patch or percutaneous fenestrated device (FASDD). We report a case of closure of complicated ASD due to PAH using a FASDD, with residual flow persistence immediately and at 6 months, and PAH improvement. FASDDs are an option in patients with complicated ASD atrial septal defect, pulmonary hypertension, percutaneous closure, fenestrated device http://www.raci.com.ar/contenido/art.php?recordID=MjY2Mg== http://recursos.meducatium.com.ar/contenido/articulos/34300170019_2662/pdf/34300170019.pdf