Ventricular Septal Defect (VSD) symptoms & causes in children

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What causes a ventricular septal defect?

Most VSD occurs by chance, with no clear reason for its development.

During the first eight weeks of fetal development, your baby’s heart begins as a hollow tube. It then develop partitions that become the septa (or walls) dividing the right side of the heart from the left. Ventricular septal defects occur when the partitioning process does not occur completely, leaving an opening in the ventricular septum.

What are some symptoms of a ventricular septal defect?

The size of the ventricular septal opening will affect the type of symptoms, severity of symptoms and the age at which they first occur.

Symptoms often occur in infancy and may include:

  • fatigue
  • sweating
  • rapid breathing
  • heavy breathing
  • congested breathing
  • disinterest in feeding, or tiring while feeding
  • poor weight gain
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