The lung artery one can not be closed completely and treating _'s treatment

The lung artery one can not be closed completely and treating _'s treatment
The lung artery one can not be closed completelyLung the intersection of artery and petal it closes to be because primary continuing, sending on MS or bicuspid valve closing complete the intersection of lung and artery make lung under high pressure pressuring increase cause in the artery all. Usually the lung arterial pressure is close to the systemic circulation level or systolic pressure> 80mmHg, unless the lung artery backbone is obviously expanded. The lung artery one closes relaxation period backflow noise (Graham Steell noise) not complete Similar to noise of backflow of aorta, but as the miscellaneous stereo, usually strengthen while inhaling. The soft Graham Steell noise is even lowered while inhaling, is only in charge of the lung arteries the blood flow increases, because the soft lung artery backflow noise is generally the clearest on the left intervals of rib second, and inhale and just push away the stethoscope from the wall of the chest. After Valsalva law tension is removed, the lung artery backflow noise resumes their sonority immediately, and the aorta backflow noise just resumes after needing 4~5 heartbeats.
Regard treating the primary disease which causes the artery high pressure of lung as the main fact, such as relieving the mitral stenosis. Only when a backflow of serious lung artery causes the difficult managing right heart to be depleted, just consider carrying on the surgery treatment to this valve.
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