Double-Outlet Right Ventricle—Child

(DORV—Child)

Definition

Double-outlet right ventricle (DORV) is a rare heart defect. In a normal heart, the blood flows in from the body to the right atrium. It then goes into the right ventricle. Next, the blood travels to the lungs through the pulmonary valve. Here, it picks up fresh oxygen. The blood returns to the left atrium and goes into the left ventricle. The blood moves out to the rest of the body.Normally, the aorta, which is the largest artery in the body, comes from the heart’s left ventricle. But when DORV occurs, the aorta and the pulmonary artery are attached to the right ventricle.Another heart defect called ventricular septal defect (VSD) usually occurs with DORV. VSD is a hole in the wall between the right and left ventricle. DORV can be categorized into several types depending on the position of the VSD.Along with these conditions, the pulmonary valve may be narrowed. DORV is a serious condition that requires immediate care.
Heart Chambers and Valves
heart anatomy
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Blood Flow Through the Heart
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Causes

DORV is present at birth. It is not known exactly why the heart does not develop normally.

Risk Factors

For many heart defects, the risk factors are unclear. Some risk factors for DORV may include:
  • Family history of congenital heart defects
  • Certain chromosomal disorders

Symptoms

Symptoms may vary depending on where the VSD is located. Symptoms may include:
  • Bluish skin color
  • Poor feeding/slow weight gain
  • Fatigue
  • Sweating
  • Rapid breathing
  • Shortness of breath

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