Atrial Septal Defect in Infants: Can It Heal Naturally?

An atrial septal defect (ASD) in infants may have the potential to close on its own, especially if the hole is small. During infancy, if the diameter of the ASD is relatively small, doctors often recommend regular follow-up and observation, as there is a significant chance the defect may close naturally over time.

Understanding the Likelihood of Natural Closure

From a medical standpoint, ASDs that measure less than 5 millimeters in diameter are considered small and have a higher probability of spontaneous closure. The smaller the size of the defect, the greater the chances of it closing without the need for surgical or interventional procedures.

Monitoring Progress Over Time

During routine check-ups, if the size of the atrial septal defect appears to be decreasing and shows no signs of enlargement, this indicates a likelihood of natural healing. The highest probability of spontaneous closure occurs within the first year of life.

When Natural Healing Becomes Less Likely

However, if the infant grows older and the ASD either remains the same size or begins to increase in diameter, the chances of it closing on its own diminish significantly. In such cases, further medical evaluation and potential intervention may be necessary to prevent long-term complications associated with an untreated atrial septal defect.