Quadriplegic Fallot: congenital heart disease with left right shunt

2021-04-29 04:42 PM

Most of the reduced blood passes through the lungs, so the arterial blood is mostly undoxified venous blood. In this condition, four cardiac abnormalities occur simultaneously.

The Fallot quadriplegic is shown in the figure; it is the most common cause of "cyanosis. Most of the decreased blood passes through the lungs, so the arterial blood is mostly undoxified venous blood. In this condition, four cardiac abnormalities occur." out simultaneously:

1. The aorta originates in the right ventricle rather than the left, or it presses a hole in the septum, receiving blood from both ventricles.

2. Because the pulmonary artery is blocked, the amount of blood flowing from the right ventricle to the lungs is much lower than normal; instead, most of the blood goes directly to the aorta.

3. Blood from the left ventricle flows through a ventricular opening into the right ventricle and then into the aorta or directly into the aorta to press on this hole.

4. Since the right side of the heart has to pump large amounts of blood to counteract the high pressure in the aorta, its muscular system is highly developed, causing right ventricular hypertrophy.

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