[Surgical consideration in congenital partial atrioventricular septal defect in 59 patients].

We report surgical anatomic characteristics, timing of surgery, corrective methods of partial atrioventricular defect and prevention of complications. In the past 15 years, we operated on 59 patients with partial atrioventricular septal defect, associated with conduction abnormality in 39 patients, common atrium in 2, mitral insufficiency (MI) in 54, tricuspid insiufficiency in 29, andunroofed coronary sinus in 6. One patient could not wean from cardiopulmanary bypass and died during operation. After surgery, 5 patients had moderate residual MI, and 1 complete heart block. During 1 to 16 years of followup, all but 1 patient with class III (NYHA) had satisfactory results.