10.25373/ctsnet.5904877.v1 Tom C. Nguyen Tom C. Nguyen Minimally Invasive ASD Repair: Step-by-Step Guide CTSNet 2018 Cardiac Congenital Atrial Septal Defect Minimally Invasive Surgery Surgery 2018-02-27 19:44:48 Media https://ctsnet.figshare.com/articles/media/Minimally_Invasive_ASD_Repair_Step-by-Step_Guide/5904877 Atrial septal defect (ASD) is one of the most common congenital lesions in adults. Percutaneous device closure remains the preferred approach. For ASD defects not amenable to percutaneous closure, minimally invasive ASD repair represents an important and safe alternative.