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The Heart and Blood Vessels
 
The Heart and Blood Vessels
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Most people who have Marfan syndrome have problems with their heart [[and blood vessel]]s because of weak connective tissue.
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Most people who have Marfan syndrome have problems with their heart and [[blood vessel]]s because of weak connective tissue.
    
Valves in the heart may not close properly and may let blood leak backward. The aorta––the large artery that carries blood away from the heart out to the body––may stretch and enlarge, and it can burst. The aorta also can develop a tear in its inner wall. This tear can expand and block blood flow through the aorta. This is called aortic dissection.
 
Valves in the heart may not close properly and may let blood leak backward. The aorta––the large artery that carries blood away from the heart out to the body––may stretch and enlarge, and it can burst. The aorta also can develop a tear in its inner wall. This tear can expand and block blood flow through the aorta. This is called aortic dissection.
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