Rupture of Congenital Aortic Sinus Aneurysm

Aortic valve sinus aneurysm rupture is a rare congenital heart disease. During embryonic development, due to agenesis of the base of the aortic valve sinus, weak or missing elastic fibers and muscle tissue in the middle layer of the sinus wall, the lack of continuity between the middle layer of the aortic wall and the aortic valve fibrous ring, causing the aortic valve sinus A weak point at the base of the aorta. After birth, aortic blood pressure gradually pushes out the weak area of ​​the aortic valve sinus to bulge to form an aortic aneurysm. Finally, rupture occurs with or without physical labor or trauma, that is, aortic valve sinus aneurysm rupture. Aortic valve sinus aneurysms are often wind-shaped, with a breach at the top. Ruptures of the sinus tumors mostly occur in the right coronary valve sinus, followed by non-coronary valve sinus, and left coronary valve sinus is rare. Due to the anatomical relationship, most of the right coronary artery sinus aneurysms break into the right ventricular cavity (approximately 70/100). (70/100), a few broke into the right ventricular cavity.