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Pulmonary valve stenosis is a condition characterized by obstruction to blood flow from the right ventricle to the pulmonary artery. This obstruction is caused by narrowing (stenosis) at one or more points from the right ventricle to the pulmonary artery. The most common form of pulmonary stenosis is obstruction at the valve itself, referred to as pulmonary valvar stenosis.
Pulmonary valve stenosis signs and symptoms vary, depending on the extent of the obstruction. People with mild pulmonary stenosis usually don't have symptoms. Pulmonary valve stenosis signs and symptoms may include Heart murmur - an abnormal whooshing sound heard using a stethoscope, caused by turbulent blood flow, Shortness of breath, especially during exertion, Chest pain, Loss of consciousness (fainting), Fatigue.
Statistical analysis of pulmonary valve stenosis in Poland resulted as Echocardiography allowed the final diagnosis of DCRV in 26 patients (81%) out of 32 studied. TTE was diagnostic in 5 (15.6%) whereas TOE was diagnostic in 21 of 21 studied by this technique. Of 6 patients with negative TTE, DCRV was identified by cardiac catheterisation in 3 and directly during surgery in the remaining 3. Of 26 patients diagnosed by echocardiography, the anomalous muscle bundle was discrete in 20 (77%) and diffuse in 6 (23%). In 23 patients (88%) right ventricular outflow obstruction was localised low in the right ventricle, and in the remaining 3 (11.5%), the obstruction was localised high in the right ventricle.