Monday, April 11, 2011
Annuloaortic ectasia is a dilatation of the proximal aorta and the fibrous ring of the heart at the aortic orifice. It may cause aortic regurgitation, and, when severe, also dissecting aneurysm. It is associated with Marfan's syndrome. The proximal aorta is the top section of the aorta, which is the largest artery pumping blood from the heart to the rest of the body. A heart with annuloaortic ectasia shows degeneration in appearance and loss of function of the aorta that can lead to a number of aortic diseases such as leaking of blood through the aortic valve which is called aortic insufficiency or aortic regurgitation. This causes the blood to flow back to the heart in the wrong direction, from the aorta into the left ventricle, causing it to become overfilled. Other complications from Annuloaortic ectasia include thoracic aortic dissection which is a tear or damage to the inner wall of the artery in the chest area of the aorta, and an aneurysm or ballooning of the artery.