title: Communication between the left ventricle and right atrium.
mesh_terms: D000293:Adolescent; D000328:Adult; D006328:Cardiac Catheterization; D006332:Cardiomegaly / Q000209:etiology; D002648:Child; D002675:Child, Preschool; D004562:Electrocardiography; D005260:Female; D006343:Heart Septal Defects / Q000150:complications / Q000175:diagnosis / Q000601:surgery; D006801:Humans; D008297:Male