Health / Medical Topics

    Atrial Septal Defect

    Definition 1

    The presence of a defect (opening) in the septum that separates the two atria of the heart. It can be congenital or acquired. (NCI Thesaurus)

    Definition 2

    A congenital disorder characterized by the presence of a defect (opening) in the septum that separates the two atria of the heart. (NCI Thesaurus/CDISC)




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