The tricuspid valve can not close completely _'s symptom of the cause of disease

The tricuspid valve can not close completely _'s symptom of the cause of disease
The tricuspid valve can not be closed completely (tricuspid incompetence) 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. Heart systolic phase close, cause blood flow into right room to be more rare than tricuspid stenosis instead because of tricuspid valve right room severely.
Cause of disease
1,It is to cause the right ventricle to expand under high pressure by the lung artery that the functional tricuspid valve can not close completely the most common cause of disease, the tricuspid valve ring is expanded, lead to the fact the tricuspid valve can not be relatively closed completely and own structure of valve is normal. Such as rheumatism the intersection of bicuspid valve and disease, inborn cardiovascular disease ' A narrow, ends a dose of syndrome of door full of trees of lung artery) The intersection of lung and worry,etc..
2,It is not completely rare that the organic tricuspid valve is closed. Inborn the intersection of Ebstein and deformity, membrane due to inflammation valve damage and tricuspid valve prolapse in the infective heart, membrane myocardium fiber, atrium dextrum mucus tumour in wind worry, a kind of cancer syndrome, coronary heart disease, heart, after right ventricle myocardial infarction and chest traumatism.
The systolic pressure of the right room of the pathologic physiology is only 1/4 of the systolic pressure of left room, so equal intensity can not be closed completely, against flow than to against little and a lot of flow have, it compensates issue to be relatively long bicuspid valve tricuspid valve. It is not complete not to accompany the artery high pressure of lung and organic tricuspid valve of high pressure of systolic phase of right room to close, it is relatively small against flow, it is difficult to cause extravasated blood and right heart of the systemic circulation to be depleted. Continue and send and can not shut off completely in the relativity tricuspid valve of the artery high pressure of lung, because the right room is pressed apparently and increased, even exceed the systolic pressure of left room, against flow being very big, dynamics of blood flow changes obviously, it is apt to cause extravasated blood and right heart of the systemic circulation to be depleted.
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