Artery narrow clinical characteristic _ symptom once of the lung

Artery narrow clinical characteristic _ symptom once of the lung
The lung artery one is narrow
The lung artery one is narrow (pulmonic stenosis) ,Can exist alone, can also amalgamate other heart malformations. There are three kinds of types:
The valve is narrow type, account for 75%; The funnel department type, one is plump or has diaphragms that the right room is flowed out, one is narrow that cause and flow out; Lung artery type, the lung artery backbone is narrow, can amalgamate the branch narrowly. It is comparatively common in adult's congenital heart disease that the simple lung artery one is narrow. Because the right ventricle arranges the blood and is obstructed, the pressure of right room increases, can present the right room plumply, the artery pressure of lung is reduced.
Clinical characteristic
( 1) Or got involved in the patient treating, can generally live until the adulthood by surgery. Do not have more symptoms before presenting the right heart depletedly.
( 2) Narrow patient of adult's light, intermediate valve, its narrow intensity does not increase and aggravate with age.
( 3) Seriously getting narrow, until age increase, right ventricle plump to aggravate, right the intersection of room and diastolic pressure and right room pigeonhole and rise, can shunt left right by the ovate hole, cyanosis appears.
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