Secundum atrial septal defects in adult patients.
D000328:Adult; D000367:Age Factors; D000368:Aged; D001145:Arrhythmias, Cardiac / Q000209:etiology; D002302:Cardiac Output; D006333:Heart Failure / Q000209:etiology; D006344:Heart Septal Defects, Atrial / Q000150:complications / Q000601:surgery*; D006801:Humans; D006976:Hypertension, Pulmonary / Q000150:complications; D008875:Middle Aged