aortaklaffer

Aortaklaffer, also known as aortic valves, are one of the four major valves in the human heart. Their primary function is to regulate blood flow between the left ventricle of the heart and the aorta, the body's largest artery. This ensures that oxygenated blood pumped from the left ventricle is directed into the aorta for circulation throughout the body, and prevents blood from flowing back into the left ventricle after it has been ejected.

The aortic valve is a tri-leaflet valve, meaning it consists of three thin, flexible flaps called cusps. These cusps open to allow blood to pass into the aorta during systole (when the heart muscle contracts) and close tightly during diastole (when the heart muscle relaxes) to prevent regurgitation. The proper functioning of the aortic valve is crucial for maintaining efficient blood circulation and adequate blood pressure.

Problems with the aortic valve can lead to various health issues. Aortic stenosis occurs when the valve narrows, obstructing blood flow and forcing the heart to work harder. This can cause symptoms such as chest pain, shortness of breath, and fatigue. Aortic regurgitation, on the other hand, happens when the valve does not close properly, allowing blood to leak backward into the left ventricle. This can lead to heart enlargement and heart failure over time. These conditions can be caused by congenital defects, infections, rheumatic fever, or aging. Diagnosis typically involves echocardiography and other imaging techniques, and treatment may range from medication to surgical repair or replacement of the valve.