Atrial Septal Defect Sizing and Transcatheter Closure

A few decades ago, surgery was the only approach used to correct even simpler congenital (e.g., atrial septal defect, patent ductus arteriosus) or acquired (e.g., mitral stenosis) cardiac abnormalities.Over the last several years, however, due to medical progress and remarkable developments in medical technology, several structural heart diseases (SHD), such as ostium secundum atrial septal defect (ASD), ventricular septal defect, patent foramen ovale, patent ductus arteriosus, mitral stenosis, mitral regurgitation, aortic stenosis, among others, can now be treated in the cardiac catheterization laboratory.ASD was one of the first to be corrected using a transcatheter approach.In fact, today, this method is considered the standard approach in these patients [1,2].