Ivalve Tricuspid: inkcazelo, isakhiwo, imisebenzi kunye iziphene ezifunyenwe

Xa abantu, ivelifa tricuspid iyafuneka njenge ukubola, ukuze uphephe igazi ntshukumo ebuya umva. Ibekwe kumgca ngokwahlukana ka intendelezo ekunene kunye ventricle ahambelanayo. ubume ivelufa ubunjwe kwamacwecwe kokuxhuma. Ukophulwa umsebenzi wakhe sinobungozi kubomi babantu.

isakhiwo

ivalve Tricuspid, ngokutsho uncwadi lwezenzululwazi, ebizwa kwakhona tricuspid. Xa isindululo wentliziyo, zonke iinkqubo zenzeka ngexesha elinye. Ukuba ukuvaleka kwenzeka amasebe ixesha zingabalulekanga, xa uvakalelwa umzimba ukutshintsha kakhulu karhulumente. Imo yempilo iye isihla ngokomgangatho kanye, kuba nzima ukuphefumla kwaye akunakwenzeka ukuba ahambe.

ivalve Tricuspid kwi ekhohlo kwentamo. Le yinxalenye yenkqubo lokumpompa okumpompa igazi. It is a uhlobo ikepusi ovula phantsi koxinzelelo lwegazi izikhulu. Lokuvala ngenxa reflux imikhosi fluid ngokuzenzekelayo ngenxa uxinzelelo phezu kobuso amagqabi.

ukuvalwa Partial ka vana tricuspid kwenzeka ngenxa ukucuthwa imisipha intliziyo xa akusekho unako ukusebenza ngokufanelekileyo. Ngenxa ukunyhashwa nokunikezelwa iingcinezelo lwangaphakathi ziqala ukuyeka inyama, ebangela ukuba kusekwe yesifo sentliziyo isongela. Ezinye izifo baphembeleli zizidlanga enjalo.

umsebenzi umzimba

ivalve Tricuspid yinxalenye yenkqubo kwegazi yabantu. A isixa esikhulu wegazi evela intliziyo ngeziphumo aorta, batyhutyha lonke kwemithambo kunye emithanjeni, nto enxibelelana iiseli mpilo kwaye ufumana carbon dioxide. Nale Ukwanda kwenzeka iimveliso ukubola evela yezimbiwa kwaye kwezakha lube mnyama. Eli igazi kuthiwa lwemithambo.

Okulandelayo kukho ngokutsha kummandla lasekunene intliziyo, intshukumo engaphezulu lwenzeka kuzo zonke imithambo imiphunga zokuxhobisa oksijini. ivalve Tricuspid iye ngaphezu kwesinye kungenzeka ikwaxina reverse yangoku. Kuyimfuneko ukuba kokwahlulwa ukusebenza kunye: ekhohlo, ventricles ekunene kunye nomthambo.

Igazi igcwalisa mmandla ekhohlo zentliziyo, ngoko ukusuka intendelezo ayajika kungena ventricle. Emva koko kukho lokuhamba ejikeleza. Ibuyisela igazi deoxygenated kwi intendelezo ekunene, ngoko kungena ventricle ekunene, kwaye liya kwegazi miphungeni. Emva kokuba umjikelo oxygenation isangqa esikhulu kuphindwa kwakhona nge intendelezo yasekhohlo kunye ventricle.

imisebenzi valve

Ekubeni ecaleni intliziyo ekhohlo nasekunene ohambisana, ixesha elifunekayo lokuba ukuvala yangoku reverse phakathi kwamasebe. Emva kwenzeka umjikelo lokumpompa igazi: kukho ixesha elimisiweyo kulwelo ventricle, kulandele ejection enamandla igazi kulo aorta. Inkqubo vana inika ukusebenza zichanekile:

• Ibekwe kwindawo lasekhohlo intliziyo obizwa ngokuba mitral.
• Triskupidalny.
• Ivalve kwi pulmonary.
• njengokuba fuse kunawo Aortic.

Oogqirha basebenzisa ukuzimisela regurgitation, ebonisa edla yokumpompoza kwegazi kwicala umva ngalo mbhojana. Ukuze uphephe oku, blocker kuluhlu ixesha ukuzalisekisa le migaqo ilandelayo:

• ivalve Mitral ivuleleke kuphela ngexesha yokumpompela igazi intendelezo ekhohlo ukuya ventricle ahambelanayo. Ivala xa kukhululwa ulwelo elaye kungena aorta. Ubume vana yangoku enezinto ezimbini.
• ivalve Tricuspid aortic ivale sicatshulwa phakathi intendelezo ekunene kunye ventricle ahambelanayo. Imisebenzi efana mitral. Isakhiwo amaphetshana ezintathu.
• Pulmonary inxulumene kwindawo phakathi buti pulmonary kunye ventricle ekunene. Inceda ukulungisa ukufana yangoku ngexesha ukunyenyiswa imisipha yenhliziyo.
• Aortic ise lo walivala ithende ijelo elo ventricle ekhohlo. Yena ivale sokuphuma igazi ukusuka aorta ngexesha ukunyenyiswa imisipha yenhliziyo. It iqulathe cusps ezintathu semilunar.

Uphuhliso nesifo sentliziyo

ivalve Tricuspid ekhokelela kuseko regurgitation igazi okanye ukubuyisela indlela flow yayo ukusuka intendelezo ukuya ventricle. Oku kwenzeka ngexesha systole (ventricle isivuno ekunene). Ekhululekile umbhinqo ehle phantsi koxinzelelo igazi.

Loo umbuso lisekwa ukuvaleka ngomatshini le aorta. Izigulane badla lokuzuza sifo ngexesha lokudla kwabo. Kodwa kukho imizekelo yeziphene ngentliziyo naso.

ezimbi

Ukophulwa ivalve ngenxa yezi zizathu zilandelayo:

• Ukungabikho Izakha emzimbeni, apho lexinene luthambe izicwili, ukudalwa plate vana.
• uphazamiseko olusebenzayo vana tricuspid kunokwenzeka ngenxa yokusilela kwezona angabamelwane kwentliziyo.

Ngenxa kokoma igazi emzimbeni na ukuvalwa engaphelelanga le tricuspid yentliziyo nokufakelwa. Oko kungakhokelela umntu zibe kwimeko lokungaphili. udonga atrial Hypertrophic akhiwa komlomo (ukwanda) ka ventricle ekunene. Ngenxa yoko kwasekwa iinkqubo amile kwi imithambo ngemithambo.

Pathology kungabonwa yi njengokungathi zangaphakathi iindumbisa yegazi sentanyeni ngexesha ejection igazi ngokusuka entliziyweni. uxinzelelo lwemithambo sidla linyuke. Isibindi linyuke kakhulu.

Oonobangela kunye neempawu

Phakathi ezibangela ezisekiweyo buthathaka ivalve tricuspid zezi zilandelayo:

• syndrome Carcinoid.
• Iziphumo kuphuhliso samathambo.
• Endocarditis imvelaphi esosulelayo.
• umonakalo ngomatshini okanye komsipha of papillary usinga kwezihlunu.
• Ngenxa yesenzo myocarditis.
• Emva cardiomyopathy.
• Ngenxa States onzima thyrotoxicosis.

iimeko bekhubazekile akholisa ukubakho kunye nezinye ukungaqheleki xa isakhiwo kwentliziyo. Tricuspid valve stenosis kunokukhokelela elirhoxisa esifubeni sakho, ugqirha ibhaqa yi Ngokucofa. zengxolo ezibalulekileyo ngexesha systole (ejection igazi ukusuka ventricle) Kwakhona kubonakala ngoxa uphulaphule zisaphila.

Noko ke, ingxolo kungabonwa kuphela xa ukusilela ahlekise. Iimpawu Ngaphantsi kakhulu badla zishiywe. Kuba ukuxilongwa iyafuneka isifundo negalelo kwizixhobo.

iindlela isifo

Xa uphethwe ebalulekileyo bambombozela iSystolic ngexesha inhalation. Oku kubonisa ivalve tricuspid. Qaphela, noba kunjani, ukuba le nto ayikho rhoqo kwaye yinto elithile unyamalale ngokupheleleyo. Ukuze uqinisekise uxilongo olwenziwe electrocardiogram lokuqala.

Kwigrafu ngenxa kunye pathology waphawula:

• ilungelo axis electric ukutenxa;
• ukunyusa ubungakanani P izinyo (esifubeni yesibini neyesithathu ikhokelela).

Kwakhona, ingasetyenziswa-X-reyi. Lo mfanekiso ubonisa ventricular dilatation okanye intendelezo. Ukunxaxha ebonakalayo imifanekiso echocardiography, ezimisa eshukumayo okungaqhelekanga kweendonga intliziyo. Ekuhlalutyeni imeko yesigulane, cinga oku kulandelayo:

• Uhlobo ingxolo, kwaye ubume obubonakala.
• Imilinganiselo wentliziyo, ivame kakhulu.
• Ubukho ekuma kwi kwizangqa ejikeleza.
• Ubukhulu xi lwemithambo.
• Engqonge esibindini.
• Ubume kwesifuba.
• uxinzelelo Right atrial.

nezifo emzimbeni

Licuthe ivelufa lokuvula kuthiwa stenosis. Le nto yenzeka phantsi kwempembelelo samathambo, malformations iziphene, kwakunye imiphumo elide ngomatshini. Ngenxa yoko, esi sifo ukwanda uxinzelelo phezu kodonga intliziyo. Kwandisa intendelezo. Qala ngxi phakathi kwegazi.

Kuba unyango amatyala okungephi zesifo ukuphumeza izenzo zokuthintela. Ekubeni ubukhulu yesibini sele kucetyiswa uqhaqho. Ivelufa iphathwa kunye incakuba, umphumo idla kufuneka ukuba webhu epleyitini okanye ushiye endaweni abathathu kuphela ezimbini. Ngokutsho manani, malunga ne-14% ezigulane musa ukuphila emva kotyando.

Kodwa emva kokuba unyango ngempumelelo, isigulane sele ukufumana ukukhubazeka. Kufuneka ukuthintela amandla omzimba kwaye kwenziwe uhlolo ngamaxesha ukuze uphephe engaphezulu inkqubela kwesi sifo.