Source:http://linkedlifedata.com/resource/umls/id/C0018817
MSH: 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.,NCI: The presence of a defect (opening) in the septum that separates the two atria of the heart. The ASD can be congenital or acquired.,CHV: defect in the wall between the lower chambers of the heart,CHV: defect in the wall between the lower chambers of the heart,CHV: defect in the wall between the lower chambers of the heart,CHV: defect in the wall between the lower chambers of the heart,CHV: defect in the wall between the lower chambers of the heart,CHV: defect in the wall between the lower chambers of the heart,CHV: defect in the wall between the lower chambers of the heart,CHV: defect in the wal