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Dr. D.S. Merchant's Articles in Cardio

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Cardiac Catheterization Flail aortic aneurysm. o Dilatation of the sinuses of Valsalva (particularly in patients with Marfan syndrome or bicuspid aortic valve problem). o Ascending aortic aneurysm. o Incomplete closure of the aortic valve cusps on the parasternal short axis view of the aortic valve. Aortic Regurgitation Causes Rheumatic fever was a common cause of AR in the first half of the 20th century. The cusps become thickened with fibrous tissues and retract, which causes central valvular regurgitation. Most commonly, some fusion of the cusps occurs, resulting in some degree of aortic stenosis and regurgitation. Associated rheumatic mitral valve disease is also very common. Aortic Regurgitation The principal symptoms associated with severe AR are exertional dyspnea, orthopnea, and paroxysmal noctumal dyspnea. These symptoms appear when pulmonary venous pressure is elevated in association with significant cardiomegaly and myocardial dysfunction. These changes occur late in the natural history of the disease.