Eisenmenger syndrome is a complication of a congenital heart defect. The condition occurs when the direction of blood flow changes, causing blood low in oxygen to be pumped throughout the body. When this occurs, the tissues and organs don't receive as much oxygen as they need, which can result in serious complications. Though people with Eisenmenger syndrome require close monitoring by a physician, treatment can help improve the symptoms and prognosis.


1. The Healthy Heart

The heart has two sides, each responsible for different functions. The right side pumps blood to the lungs, where it receives oxygen. After being oxygenated, the blood travels to the left side of the heart, from which the organ pumps it into the aorta, a large vessel that circulates blood to the rest of the body. Valves open to allow blood to flow into the heart's chambers and arteries, and close to prevent blood from flowing backward through the heart.

healthy heart yumiyum / Getty Images


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