The tricuspid valve can not close completely _'s general knowledge of brief introduction

The tricuspid valve can not close completely _'s general knowledge of brief introduction
The tricuspid valve can not be closed completely (tricuspid insufficiency) It is given much trouble in leaf that rare, and expanded by artery high pressure of lung and tricuspid valve moring causes. Common showing bicuspid valve pathological change and chronic lung worry.
Symptom
It does not cause pathology physiological change and bicuspid valve of the right side heart to close the not complete impact on left heart similarly completely that the tricuspid valve is closed, but compensate one is relatively long; If the condition develops gradually, can lead to the fact finally right ventricle and atrium dextrum are loose, the right ventricle is depleted. Show the persons who cause under high pressure of lung artery, the condition is developed very fast.
(1) Symptom tricuspid valve close, amalgamate the intersection of lung and artery at the high pressure all, can appear heart arrange the intersection of blood volume and reduce and symptom, systemic circulation of extravasated blood. The tricuspid valve is closed and does not amalgamate the disease patient of bicuspid valve completely, symptom of lung extravasated blood can be lightened because the tricuspid valve close the development not complete, but it can be more serious that weak and other hearts arrange the reduced symptom of blood volume.
(2) Physical sign main physical sign for the intersection of brestbone and left the intersection of bottom flange and the whole the intersection of systolic phase and noise, inhale and oppress noise can strengthen behind the liver; But if the depleted right ventricle can't increase the heartbeat amount noise difficult to strengthen. Only when the flow is very large, there are the third heart sound and medium noise of the low-key relaxation of the tricuspid valve district. Intravenous pulse wave picture v wave (are also called the reflux wave, while shrinking for the right ventricle, the blood flows back to due to right room systemic vein) of neck Increase; Can lay one's hand on and liver beat. When the valve prolapses, can hear in the tricuspid valve district and not the injection loudspeaker sound of click. Its physical sign of extravasated blood is depleted and the same as the right heart.
Cause of disease and having illness coming on in the mechanism
The tricuspid valve can not close completely. Common showing bicuspid valve pathological change and chronic lung worry, involve playing myocardial infarction of wall of right ventricle, rheumatism or heart failure later period when the congenital heart disease lung artery causes under high pressure, ischemic heart disease, myocardium disease; I haven't seen you for a long time if out of shape that the valve is shortened after rheumatism tricuspid valve inflammation, often amalgamate tricuspid stenosis; Inborn Ebstein deformity; The valve due to membrane inflammation is damaged in the infective heart; The tricuspid valve prolapses, this kind of patient prolapse with the bicuspid valve more, common at horse's all syndrome; Also can be seen at atrium dextrum mucus tumour, after right ventricle myocardial infarction and chest traumatism.
The tricuspid valve with simple sex can not close completely the day after tomorrow, because kinds of spot piece often calm ventricle of tricuspid valve cancer, enable a sharp and right ventricle wall adhesion, thus cause tricuspid valve close completely, many to have the intersection of lung and the intersection of artery and a pathological change at the same time patient this kind of. It often has right hearts that obviously expands that the tricuspid valve can not be closed completely.
Diagnosis
According to the typical noise, the atrium dextrum of right ventricle increases and symptom and physical sign of systemic circulation extravasated blood, it is generally easy to make diagnosis. Pursues acoustics radiography and Doppler's supersound and is checked and can be made a definite diagnosis of, and can help to make the diagnosis of cause of disease in the supersound aroused in interest.
(1) X-ray examination can be seen the right ventricle, atrium dextrum and increase. The right room presses the persons who rise, it is obvious the azygos vein is expanded and thorax product liquid; The person who has ascites, lift on the diaphragm. Can see right room systolic phase beats while perspecting.
(2) The electrocardiogram can show the right room plumply to strain while checking, the right room is loose; And often there is right bunch that props up block.
(3) Pursue to check and can be seen the right ventricle, atrium dextrum to increase in the supersound aroused in interest, upper and lower vena cavas are increased widely and beating; One kind of tricuspid valves of flail. Two-dimentional supersound aroused in interest to pursue to prove backflow in acoustics radiography, Doppler checks and can be judged against procedure degree and lung artery high pressure in supersound.
Differential diagnosis
Should close not completely low-order ventricular septal defect to distinguish with the bicuspid valve.
The bicuspid valve can not be closed completely: The apex of the heart district is typical to dries one kind of systolic phase noises and is atrium sinistrum and left ventricle and expand.
The tricuspid valve can not be closed completely: Brestbone left reason underpart hear and limitation dry the whole the intersection of shrink and noise of kind, go back the intersection of energies and quantity increase, can enable noise strengthen inhale, weaken while exhaling. Lung artery, at the high pressure, the intersection of lung and the intersection of artery and petals of hyperfunction second sound, neck intravenous the intersection of v and wave increases. There is liver that beats, swelling. Electrocardiogram and X-ray examination can see right ventricular hypertrophy. The supersound aroused in interest is pursued and can be diagnosed clearly.
Treat
Simple tricuspid valve close completely having the intersection of lung and the intersection of artery and high pressure, such as continue, take place on the intersection of membrane and inflammation or wound person under infective heart, seldom need surgery to treat. Heart failure that other reasons of positive treatment cause, can improve the severity that the functional tricuspid valve return to and flow. When bicuspid valve pathological change accompanies artery high pressure of lung and right ventricle apparently to expand, it is unusual to correct the bicuspid valve, after reducing the artery pressure of lung, the tricuspid valve can not close completely but needn't be especially dealt with; Serious organic tricuspid valve pathological change person is especially rheumatism persons who have no artery high pressure of serious lung, can implement the shaping skill of a ring or artificial heart valve and replace the skill.
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