Pulmonary valve stenosis

We all yearn for health. We all hope that we and the people around us are healthy. However, the emergence of many diseases will have a great impact on our health. Some diseases are acquired, while some are congenital. Pulmonary valve stenosis is a congenital heart disease, but many people do not know much about pulmonary valve stenosis. In this article, we will introduce you to some common knowledge about pulmonary valve stenosis.

Pulmonary valve stenosis has a great impact on the health of patients. Patients and their families must pay enough attention to this disease. So what exactly is pulmonary valve stenosis? Pulmonary valve stenosis is the stenosis of the pulmonary artery orifice, which accounts for 5%-8% of congenital heart disease, of which 90% is valve stenosis, that is, the three pulmonary valves are thickened and fused at the junction. When the heart contracts, the valve cannot open, resulting in a rounded dome sign. Heart murmur is the main sign. Electrocardiogram shows right ventricular hypertrophy. Cardiac X-ray shows low lung blood volume, right heart enlargement, and vertical dilatation of the pulmonary artery segment. Echocardiography can confirm the diagnosis.

Pulmonary valve stenosis can be classified as mild, moderate, or severe based on the pressure difference between the right ventricle and the pulmonary artery. A pressure difference of 0.75 kPa (more than 10 mmHg) can be diagnosed as pulmonary valve stenosis, a pressure difference of 10-50 mmHg is mild stenosis; a left ventricular systolic pressure level of 50 is moderate; and a pressure difference greater than the left ventricular systolic pressure level is severe.

Except for severe pulmonary valve stenosis, the children's clinical symptoms are very mild, sometimes with shortness of breath after exercise. In severe cases, the increased pressure in the right ventricle and right atrium causes the foramen ovale in the atrial septum to open, allowing blood from the right atrium to flow into the left atrium, resulting in cyanosis of the lips and nails. Patients with severe stenosis may also have symptoms of heart failure, such as edema, ascites, and hepatomegaly.

The treatment of pulmonary valvular stenosis is increasingly leaning towards balloon catheter angioplasty. Dilatation tears open the adhered pulmonary valve, thus solving the stenosis problem. Except for individual cases of failure, it is basically successful and the restenosis rate is extremely low. Therefore, it has basically replaced surgical treatment. Only cases with valvular hypoplasia and small valve annulus may require surgical treatment.

After reading the introduction in this article, everyone should have some understanding of the disease of pulmonary valvular stenosis. Generally speaking, pulmonary valvular stenosis is very harmful. However, most patients with pulmonary valvular stenosis still need timely treatment. There are currently many methods for treating pulmonary valvular stenosis. As long as the treatment is timely, the patient can still recover.