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VENTRICULAR SEPTAL DEFECT

ventricular septal defect (VSD) is a birth defect of the heart in which there is a hole in the wall (septum) that separates the two lower chambers (ventricles) of the heart.

This wall also is called the ventricular septum.

A ventricular septal defect happens during pregnancy if the wall that forms between the two ventricles does not fully develop, leaving a hole.

A ventricular septal defect is one type of congenital heart defect. Congenital means present at birth.

An infant with a ventricular septal defect can have one or more holes in different places of the septum. There are several names for these holes.

Some common locations and names are (see

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  1. Conoventricular Ventricular Septal Defect
    In general, this is a hole where portions of the ventricular septum should meet just below the pulmonary and aortic valves.
  2. Perimembranous Ventricular Septal Defect
    This is a hole in the upper section of the ventricular septum.
  3. Inlet Ventricular Septal Defect
    This is a hole in the septum near to where the blood enters the ventricles through the tricuspid and mitral valves. This type of ventricular septal defect also might be part
  4. of another heart defect called an atrioventricular septal defect (AVSD).
  5. Muscular Ventricular Septal Defect
    This is a hole in the lower, muscular part of the ventricular septum and is the most common type of ventricular septal defect.

Diagnosis

A ventricular septal defect usually is diagnosed after a baby is born.

  • Shortness of breath,
  • Fast or heavy breathing,
  • Sweating,
  • Tiredness while feeding, or
  • Poor weight gain.