Partial closure with a self-made fenestrated device of secundum atrial septal defect with severe pulmonary artery hypertension in adults

Secundum atrial septal defect(ASD)repres-ents one of the most common congenital heart diseases,accounting for up to 10%of all congenital heart defects.It is often diagnosed in adulthood due to the absence of clinical symptoms.[1]By the age of 40 years,90%of untreated patients have symptoms of exertional dyspnea,fatigue,pal-pitation,sustained arrhythmia,or even evidence of heart failure.