general knowledge of a disease of the lung artery

general knowledge of a disease of the lung artery
Summary
In the inborn lung artery, the most common one is that the lung artery one is narrow (pulmonicstenosis) ,Can amalgamate atrium, interventricular septal defect or aorta and ride; One is narrow that can continue, take place or the companion sends the right ventricle funnel. Due to rheumatism person involve more many valves; Other rare causes of disease have adhesion, a kind of cancer syndrome, Ma Fan's syndrome,etc. after membrane inflammation in the infective heart.
The lung artery one can not be closed completely (pulmonicinsufficiency) ,The chief cadre of lung artery caused under high pressure by the lung artery more expands, common in the mitral stenosis, also can be seen at heart atrial septal defect. The rare cause of disease has rheumatism nature simple lung artery a petal of inflammation, Ma Fan's syndrome, inborn lung artery that lack if or development is bad, membrane inflammation causes the valve to damage, the valve to separate the postoperative or right heart conduit skill and damage and cause the lung artery one not to close completely in the infective heart.

Cause of disease
Lung the intersection of artery and petal, when being narrow, step petals of the intersection of pressure and steps, can enable right ventricular hypertrophy while being bad, when narrow seriously, it can be up to 32kPa( 240mmHg) to step a pressure rank badly ,It is heavy to be narrow, the earlier the depleted clinical manifestation of right heart appear. If amalgamate atrial septal defect of inborn heart, then right is relatively early to part on the left side flowing out now.
Lung artery is a persons who can not close completely, happen in the low lung circulation which forces down resistance because of returning to flowing, so blood flow motive force changes usually minor. If a mouth returns to the flow and increases and can cause the capacity load of right ventricle to increase, cause the right ventricle to expand, plump, cause the right heart to be depleted finally. Accompany and take place the artery high pressure of lung, present acutely and return to flowing or return to one degree of the serious ones of procedure, the condition is developed very fast.

Symptom
The light intermediate lung artery one is narrow, does not generally have obvious symptom, its average life span is similar to ordinary person; The severe and narrow one, the difference of able to bearing amount of the movement, there can be chest aching, dizzy, faints, cyanosis. Main physical sign is that a lung artery is loud, coarse and drying one kind of systolic phase noises in a district, a second sound of district of lung artery weakens companions to split, more obvious after inhaling. Lung the intersection of artery and petals of the intersection of district and injection the intersection of click and the intersection of loudspeaker and sound indicate valve have severe calcification, activity degree in line. Inborn and severe and getting narrow, have right ventricle to be plump promptly early years, can cause district rise companion the praising beat by the brestbone in front of the heart. Lasting cyanosis person, can accompany hair poke pointing, toe.
Lung the intersection of artery and petal close completely patient, in take place, before the depleted right heart, have symptom on being clinical. Main physical sign, for the early decreasing Kazakhstan's angry kind of noises of a relaxation in district of lung artery, can leave while spreading. While accompanying the artery high pressure of lung, a second sound of district of lung artery is hyperfunction, split. Return to large flow, tricuspid valve district can hear and the intersection of systolic phase and noise there may be low-key noise (noise, Austin-Flint of right side,) in front of systolic phase . If valve activity degree kind, can hear the intersection of lung and artery spray sound.
Check
(1) The right ventricle of artery a disease person of X-ray examination lung is plump and increasing. The simple and narrow one, the lung artery is always done the expansion after being narrow, the lung blood vessel shadow is sparse; Lung artery shut off completely the intersection of companion and the intersection of lung and artery at the high pressure, it is obvious the intersection of lung and the intersection of artery and section and the intersection of lung and the intersection of door and shade and the lung artery shadow increases under the Right deviation.
(2) Check and show the plump straining, atrium dextrum of right ventricle to increase in electrocardiogram, the narrow one of lung artery, bunch props up block in common right.
(3) Supersound aroused in interest to pursue, check, can brief valve on narrow intensity, Doppler supersound check, can verify, store in, return to, shed.
Can make a narrow diagnosis of lung artery to weaken according to a second sound of district of the noise, trembling and lung artery of typical systolic phase of a district of lung artery. Two-dimentional ultrasonic heart cardon and right ventricle X-ray radiography, can help to distinguish the lung artery one is narrow, funnel one is narrow or one is had narrowly.
According to the early noise of a relaxation in district of lung artery, strengthen while inhaling, can make the lung artery one and close diagnosis not complete. Doppler supersound can help and the intersection of aorta and petal close the whole differentiation.
Treat
The narrow one of lung artery, reaches 5 badly as stepping a pressure rank. 3kPa( 40mmHg) Can make the lower valve of direct-view and separate the skill when the the above, or pass through the ball bag and expand the valve and form the skill.
Continue and take place it to a persons who can not close completely of lung artery of the artery high pressure of lung, should treat it and send disease originally mainly. Should carry on the treatment of cause of disease to pathological change sent in the valve originally. Such as against the intersection of flow and large or the intersection of right ventricle and the intersection of capacity and the intersection of load and going on persons who aggravate, can implement the artificial heart valve and replace the skill.
In order to improve depleted symptom of the right heart, can give strong heart, diuretic,etc. and treat.
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