A ventricular septal defect (VSD) is a congenital heart defect where there's a hole in the wall (septum) separating the two lower chambers (ventricles) of the heart, allowing blood to flow abnormally between them.
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A ventricular septal defect (VSD) is a congenital heart defect where there's a hole in the wall (septum) separating the two lower chambers (ventricles) of the heart, allowing blood to flow abnormally between them.
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