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Your child has a heart problem that includes a hypoplastic ventricle. The most common treatment is heart surgery. This is often done in 3 stages. Treatment is complex. It requires careful management of your child’s health. And treatment does not repair your child’s heart problem. But it can relieve symptoms and increase your child’s chances to live a more normal life. You and your child’s doctor have decided that the benefits of this surgery outweigh any risks. This sheet helps you understand the surgery that is done during stage I. Your child’s cardiologist or surgeon can answer your questions and tell you more as needed.
Stage I. Make the 1 working ventricle the main pumping chamber of the heart. This provides blood to both the lungs and the body.
Stage II. Decrease the workload of the 1 ventricle. This reduces the mixing of oxygen-poor and oxygen-rich blood.
Stage III. Separate the circulation of blood in the heart. This means very little oxygen-rich and oxygen-poor blood mix.
Risks and possible complications include:
Arrhythmia (abnormal heart rhythm)
Problems in the lungs
Problems with the nervous system, such as seizure or stroke
Abnormal buildup of fluid around the heart or lungs
Atrial septectomy. The atrial septum (wall dividing the 2 upper chambers) is removed. This allows oxygen-rich blood from the left atrium to mix with oxygen-poor blood in the right atrium.
Reconstruction of aorta. The main pulmonary artery is divided. It is used, along with patch material, to rebuild the aorta. This is called the neoaorta or “new” aorta. Blood from the right ventricle can then be pumped through the pulmonary valve to the new aorta. This sends blood from the right ventricle directly to the body instead of to the lungs.
Placement of shunt (tube). A new pathway must be created to send blood to the lungs. This is because the main pulmonary artery has been used to rebuild the aorta. So, a shunt is placed. It connects an artery branching from the aorta to the pulmonary artery. This allows a controlled amount of blood to reach the lungs. As an alternative, the surgeon may use a technique called the Sano method in place of the shunt. In this case, a tube is placed from the right ventricle to send blood directly to the pulmonary arteries that are connected to the lungs.
After any of these surgeries, call the doctor right away if your child has any of the following:
Increased redness, draining, swelling, or bleeding at the incision site
Fever 100.4°F (38°C) or higher
Trouble feeding, poor appetite, or not gaining weight
Shortness of breath
Cough that won’t go away
Nausea or vomiting that continue
Your child doesn't seem to be improving
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