Repair of primum ASD with cleft mitral valve

At our institution we have managed 37 cases of primum ASD using this approach over the last 8 years. Average patient age at operation was 3.7 years (range: 4 months to 14 years). There were no mortalities and the median hospital stay was 3.5 days. Reoperation was required in two patients, one for a residual ASD due to suture line dehiscence and another for mitral valvuloplasty two years following the original repair. These results are typical for patients with uncomplicated anatomy. In the subgroup of patients presenting with significant symptoms in the first year of life, typically associated with left-sided obstructive lesions, mortality greater than 30 has been reported and the need for reoperation exceeds 50%.