“… 4 Acquired aneurysms are much less common than congenital and may be spontaneous due to cystic medial necrosis, postsurgical status, trauma, Takayasu's arteritis, or endocarditis. 5 , 10 , 11 , 12 , 13 Unruptured SVA may be discovered as an incidental finding 10 or cause symptoms related to right ventricular outflow obstruction, left ventricular outflow obstruction, complete heart block, or ventricular tachycardia. Ruptured aneurysms may present with heart failure due to left-to-right shunt.…”