obsolete_atrial heart septal defect true true Heart Septal Defects, Atrial MESH:D006344 MedDRA:10003664 interatrial septal defect atrial septal defect interauricular septal defect atrioseptal defect Developmental abnormalities in any portion of the ATRIAL SEPTUM resulting in abnormal communications between the two upper chambers of the heart. Classification of atrial septal defects is based on location of the communication and types of incomplete fusion of atrial septa with the ENDOCARDIAL CUSHIONS in the fetal heart. They include ostium primum, ostium secundum, sinus venosus, and coronary sinus defects. Sirarat Sarntivijai http://purl.obolibrary.org/obo/MONDO_0006664 3.88.0 Replaced by Mondo term MONDO_0006664, with which this term was previously merged. Use: http://purl.obolibrary.org/obo/MONDO_0006664 auricular septal defect DOID:1882 MedDRA:10019308 SNOMEDCT:405752007 congenital atrial septal defect NCIt:C84473