Lung artery mouth narrow to need make which check _ treat

Lung artery mouth narrow to need, make which check _ treat
X-ray examination:The narrow chest X-ray of artery port of slight lung can not unusually behave, the middle, severe narrow case reveals the heart shadow slightly or intermediate to expand, rely mainly on the fact that the right rooms and right rooms are loose, the apex of the heart is loose because of the right room to take the form of ball and lift upwards. Section round and grand in shape of lung artery that a narrow case expands of lung artery is stressed outwards, but the intersection of funnel and parts of narrow the intersection of patient and this section present smooth and even sunken, lung door blood vessel shade reduced, the wild blood vessel of lung is tiny, it is very to enclose 1/3 of the areas with the lung field particularly, so the lung is wild and clear.
Check in electrocardiogram:A narrow patient's electrocardiogram of slight lung artery is in the normal range that the electrocardiogram changes to vary with narrow intensity, intermediate and the above narrow one shows electric axle leaning towards, right ventricular hypertrophy in right, strains and T is inverted etc. and change, the severe narrow case can present the loose high and sharp P wave of atrium. Can't prop up block in some cases.
Pursue to check in the supersound aroused in interest:Can reveal to pursue to check a leaf is open and restricted in a narrow case supersound aroused in interest of lung artery, petals of leaf show in round-top the intersection of projection and petals of narrow and small mouth, can find out right room, flow out dishes of the intersection of muscle and plump and right ventricle and intensity that atrium dextrum expands.
According to clinical physical sign, X-ray and supersound being aroused in interest to pursue, check, general lung artery mouth narrow and easy to make preliminary diagnosis, but to some cases in order to further define the need of diagnosis or differential diagnosis, understand narrow intensity and heart malformations that the companion sends, contribute to the correct operation choice, it is necessary to make right heart conduit or right room radiography inspection.
Right heart conduit and radiography of right room of alternative are checked:The systolic pressure of normal right ventricle is 2.0- 4.0kPa (15- 30mmHg) The diastolic pressure is 0- 0.7kPa(0- 5mmHg) ,The artery systolic pressure of lung conforms with systolic pressure of right ventricle, such as the systolic pressure of right ventricle is higher than 4.0kPa(30mmHg) ,And right room and lung artery systolic pressure steps exceed 1.3kPa(10mmHg) badly Namely brief on artery mouth narrow, step petals of the intersection of pressure and the intersection of steps and bad size, can reflect the intersection of lung and the intersection of artery and the intersection of mouth and narrow intensity for be able to have lung, such as stepping a pressure rank badly in 5.3kPa(40mmHg) The following slightly narrow, lung the intersection of artery and petals of hole make an appointment in 1.5- 2.0cm about; If the pressure steps are bad it is 5.3- 13.3kPa (40- 100mmHg) Intermediate and narrow, a hole invite in 1.0- 1.5cm; The pressure steps are bad in 13.3kPa(100mmHg) The above is severe and narrow, it is estimated that a hole is 0.5- 1.0cm. The right heart conduit pulls out from lung artery in the course of right ventricle, records the pressure continuously, change and appear third the intersection of type and curve and can judge the intersection of lung and the intersection of artery and mouth is narrow to a part of narrow or two between a narrow or funnel of simple lung artery have concurrently according to the curve figure of the pressure Phenotype narrow.
The right ventricle radiography of the alternative needn't be regarded as routine inspection, but to some difficult cases in order to define diagnosis and differential diagnosis need, find out about narrow position and intensity, can combine the right heart conduit and check the right room radiography skill of the conduct. Inject into radiography pharmaceutical in the right ventricle, list the blockage in pharmaceutical of radiography of a position of lung artery, it is round-top in shape to protrude into lung in the the intersection of artery and for valve to merge, radiography pharmaceutical take the form of the intersection of fan and form, scatter after narrow and small a mouth is spurted into the lung artery, funnel part narrow to can flow out dish, appear narrow and long radiography pharmaceutical image in the right ventricle.
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