Aorta - the largest vessel of the human body. It is the arterial blood from the left ventricle of the heart to smaller arteries and then throughout the body. Aortic stenosis is a narrowing of it. This birth defect occurs in 3-10% of patients with heart defects. Narrowing of the aorta increases the load on the left ventricle of the heart. In order to more forcefully push the blood through the narrowed aorta left ventricular hypertrophy and some time can compensate for this defect. Over time, and there is decompensation of heart failure. In the place of exit of the aorta from the left ventricle is the aortic valve, which prevents reverse discharge of blood from the aorta into the left ventricle.
Accordingly, aortic stenosis (narrowing of the aorta) may be:
above the valve
under the valve.
The most common valvular aortic stenosis, when the leaf valve are fused together. Least likely to occur nadklapanny aortic stenosis. Symptoms of stenosis of the aortic valve occur immediately. Due to its powerful muscles of the left ventricle may be a long time to compensate for this condition. If the patient has decompensated complaints heartbeat, chest pain, heart pain. The nature of pain often shrinking, aching. Shortness of breath, dizziness, fainting. In the later stages of the disease may be cardiac asthma.
For diagnosis it is important to listen to a rough systolic murmur over the aorta. This noise can also listen to the vessels of the neck. When the X-ray study found an increase in left ventricle of the heart. Usually, the left ventricle is rounded. This is called - a typical configuration of the aortic heart. Electrocardiogram determine left ventricular hypertrophy. An echocardiogram reveals structural changes in the aortic valve apparatus, to clarify the degree of disturbance of the heart.
Aortic Stenosis - Treatment
Surgical treatment of children is only the manifestation of symptoms in patients with severe aortic stenosis, or the development of heart failure. Perform a closed balloon valvotomy. Extend the entrance to the aorta. In other cases it is preferable to perform the operation at a later age.