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

The backflow tricuspid valve of tricuspid valve can not close completely _'s general knowledge of general knowledge
The blood is closed the tricuspid valve not complete from the right ventricle and flowed into the right room instead.
Backflow of tricuspid valve (TR) Continue, send on right ventricle expanding with serious the intersection of lung and high pressure or right room flowing out line obstruct, cause the high pressure of right ventricle usually. Expand only ' Such as big atrial septal defect) Or single the high pressure ' Narrow such as the serious lung artery) Produce TR. to be rare, it can continue, take place on membrane inflammation under infective heart, especially the quiet note becomes the addiction drugs, the papilla skin function blocked in right room is not complete, or use fragrant Fluorine Lamine (fenfluramine) . TR is primary once in a while, namely because the tricuspid valve splits and lacks (namely the cushion defect of membrane in the heart) ,The blunt device is dampened, Ebstein deformity (namely the tricuspid valve out of shape is shifted down to the right room) ,Or its valve of one kind of cancers patient may be affixed to half a opening position. More rare, TR is causing and prolapsing, often have bicuspid valve that prolapses at the same time because of a kind of sex change of mucus. Successful person who changes a postoperative originally having or slight tricuspid valve backflow of bicuspid valve, to the backflow of severe tricuspid valve when can appear, the blood flow of bicuspid valve increases to make potential tricuspid valve backflow expose to come out (this kind of possibility few ---Translator's note) .
Symptom, physical sign and diagnosing
Except low the intersection of displacement and symptom like tired, skin cold, have difficulty in breathing, edema, outside, serious TR the sense of beating of shank in only peculiar symptom, this is because of causing from the high neck intravenous backflow wave that pressure transmitted of right room. Because the liver is congested can cause the right upper abdomen to be uncomfortable. As the right room increases, the atrium quivers and flutters with the atrium commonly, this will further reduce heart displacement, and very unexpected kindling is serious and in heart failure.
The intravenous wave of neck can be V waves or Y of different intensity and slope, depends on the intensity of TR. In pace with V wave, the liver has the systolic phase at various degrees to beat.
When TR is apparent, often have a systolic phase noise and tremble in the right neck vein. Slightly, continue and take place in the high pressure of lung, can hear the high-profile TR noise of the whole systolic phase like TR. If TR is obvious, and primary, then the noise is medium-sized in frequency. The noise is strengthened (Carvallo solicits) while inhaling . Usually being the clearest close to the the 5th rib or upper abdomen of the brestbone. , noise can in the liver free predestination pay, smell and.
It is overweight that ECG can show the load of right room at various degrees to behave, depends on the severity of TR, and continue the hair in the high pressure of lung. There can be high and sharp P wave and V1 and lead and unite and present the QR type. This is that the right room increases load the overweight and plump model of right room behaves.
The X-ray shows the superior vena cava to increase widely, the right room increases (make the heart shadow increase right) Increase with the right room ' The heart shadow increases left) . The side location chest block can also show the right room to increase.
The supersound aroused in interest illustrationally shows the right room internal diameter of right room increases. It can verify this diagnosis that Doppler and two-dimentional supersound aroused in interest pursue. Heart conduit and angiography can prove TR and determine the pressure of right room, can confirm TR for take place or continue, take place directly.
Treat
Even if the patient has had serious TR and can still be tolerated for many years. The persons who become the addiction in heroin are because of membrane inflammation in the infective heart, the tricuspid valve often needs to excise. If TR is in heart failure, can be reduced to treat the cause of disease that the heart declines against the flow with internal and external departments. If TR continue take place on left the intersection of heart and the intersection of valve and pathological change ' Such as MS) Lung high pressure and right ventricle high pressure,last heart valve pathological changes left and can take a favorable turn surgery. During bicuspid valve operation, can use petals of the intersection of ring and shaping skill, correct, manage TR at the same time, in order to prevent, die of the low heart to rank blood volume while being postoperative.
Tricuspid stenosis
Tricuspid stenosis hinders the blood from flowing into the right room from the right room.
Tricuspid stenosis (TS) It is nearly all rheumatism and nearly always with obvious MS, TS is main once in a while. The rare reason is systemic lupus erythematosus, one kind of cancers and right room mucus tumour. It is inborn or because of tumour, primary sarcoma soak, shift tumour or limitation contract getting narrow pericarditis oppress the tricuspid valve ring, cause from outside to be rare. It is expanded that the right room is plump, and the right room is plentiful and insufficient, and is small.
Symptom and physical sign
Except the intersection of tricuspid stenosis and patient have the intersection of neck and intravenous enormous the intersection of A and wave cause shank shake kind to be uncomfortable, main symptom is caused by discharging amount of low heart and tired, the skin is cold, it causes the right upper abdomen to be uncomfortable that the liver is swelling.
If rhythm of the heart is normal, there is enormous neck intravenous wave at various degrees. If there is the atrium that quivers, V wave is apparent in the neck vein beats. In sinus nature rhythm of the heart, sometimes the upper abdomen can be heard for the 4th rib of the intersection of brestbone and left predestination and noise before systolic phase, strengthen while inhaling. But not like MS, there is no cumulative phenomenon before the first sound in the noise, and in one kind of noises of cylinder of middle period of relaxation is very light or can't hear, unless the patient has atriums to quiver.
Diagnose and treat
ECG lay wall lead, unite with V1 showing high sharp the intersection of P and wave, right the intersection of room and the intersection of load and overweight behavior, X-ray the intersection of chest and block show extended right room and superior vena cava. The supersound aroused in interest illustrationally shows the right room increases EF slope with the tricuspid valve to slow down, reflect it is slowed down that the right room is plentiful. The heart conduit can reveal that it is bad to step a pressure rank of tricuspid valve relaxation.
TS seldom reaches needing to make the intersection of valve and separating the skill seriously.
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