Balloon dilatation of pulmonary valve

Stenosis can occur in valves and blood vessels. The most common congenital valve stenosis is the pulmonary valve and aortic valve. As for mitral and tricuspid valve stenosis, it is rare. Cardiac catheterization for pulmonary valve stenosis was first reported by Semb et al. In 1979. In 1982, Kan et al. First successfully balloon dilated an eight-year-old child with a pulmonary valve stenosis using a balloon catheter to reduce the pressure difference between the right ventricle and pulmonary artery from 48 mmHg to 14 mmHg. Since then, balloon catheter dilatation has been widely used in patients with pulmonary valve stenosis, peripheral pulmonary artery stenosis, aortic valve stenosis, and aortic stenosis, and has become the standard treatment for these stenoses.