[The surgery of atrial septal defect in adults (author's transl)].

33 cases of A.S.D. whose age ranged between 30 and 50 years are presented. Surgical indications, post-operative complications and arrhythmias are described. Atrial fibrillation due to pulmonary hypertension in the post-operative period is particularly emphasized. The authors point out that surgical indication for A.S.D. in adults is closely related to the hemodynamic of pulmonary circulation.