title: [Follow-up observation of aged patients after open-heart surgery of atrial septal defects].
mesh_terms: D000328:Adult; D000367:Age Factors; D004452:Echocardiography; D004562:Electrocardiography; D005260:Female; D005500:Follow-Up Studies; D006344:Heart Septal Defects, Atrial / Q000503:physiopathology / Q000601:surgery*; D006439:Hemodynamics; D006801:Humans; D008297:Male; D008875:Middle Aged; D013997:Time Factors