Leissner, KayPorhomayon, JahanNader, Nader D.2016-01-042015Leissner, Kay B., Jahan Porhomayon, and Nader D. Nader. 2015. “Persistent Atrial Septum Defect Despite Placement of Two Amplatzer Septal Occluders.” Journal of Cardiovascular and Thoracic Research 7 (4): 172-174. doi:10.15171/jcvtr.2015.37. http://dx.doi.org/10.15171/jcvtr.2015.37.2008-5117http://nrs.harvard.edu/urn-3:HUL.InstRepos:23993581Herein, we are presenting a case of persistent interatrial septal defect diagnosed during coronary artery bypass grafting (CABG). Twice, attempts had been made to close this shunt using amplatzer septal occlude. However, percutaneous technique had failed in both occasions. The patient presented with chest pain 4 years after the second attempt and required urgent CABG. Persistent shunt was repaired during surgery.en-USAtrial Septal DefectAmplatzerPercutaneous OccludersJournal Article2016-01-0410.15171/jcvtr.2015.37