How long does atrial septal defect heal?

Self-healing time varies with the size of the defect and age.

The size of an ASD is an important factor affecting the self-healing time. For example, small ASDs usually close naturally in the first year of life, while large ASDs may take several years to close naturally. Second, age is also one of the factors affecting the self-healing time of ASDs. Generally, ASDs are more likely to self-heal in infancy and childhood. The possibility of self-healing decreases with age. In addition, the location and shape of the ASD also affect the healing time.