title: Ostium secundum atrial septal defect associated with balloon mitral valve in children.
mesh_terms: D000328:Adult; D000790:Angiocardiography; D006332:Cardiomegaly / Q000209:etiology / Q000503:physiopathology; D002648:Child; D002675:Child, Preschool; D004562:Electrocardiography; D005080:Exercise Test; D005260:Female; D006326:Heart Auscultation; D006344:Heart Septal Defects, Atrial / Q000150:complications* / Q000175:diagnosis / Q000000981:diagnostic imaging / Q000503:physiopathology; D006349:Heart Valve Diseases / Q000175:diagnosis / Q000000981:diagnostic imaging / Q000209:etiology* / Q000503:physiopathology; D006801:Humans; D008297:Male; D008944:Mitral Valve Insufficiency / Q000175:diagnosis / Q000000981:diagnostic imaging / Q000209:etiology* / Q000503:physiopathology; D011379:Prognosis; D014672:Vectorcardiography