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| pulmonary valve stenosis ： ウィキペディア英語版 |
pulmonary valve stenosis
Pulmonary valve stenosis (PVS) is a heart valve disorder in which outflow of blood from the right ventricle of the heart is obstructed at the level of the pulmonic valve. This results in the reduction of flow of blood to the lungs. Valvular pulmonic stenosis accounts for 80% of right ventricular outflow tract obstruction. While the most common cause of pulmonary valve stenosis is congenital heart disease, it may also be due to a malignant carcinoid tumor. Both stenosis of the pulmonary artery and pulmonary valve stenosis are causes of pulmonic stenosis.
==Symptoms and Signs==
Among some of the symptoms consistent with pulmonary valve stenosis are the following:
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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