Cardiology. Iwindow ye-Oval

Iwindow evulekile evulekile entliziyweni iphakathi kwe-atria. Ukuvulwa okuncinci ngexesha lokuphuhliswa kwamanzi kubandakanyeka kwi- circulation circulation. Ngomxholo walo, iwindi ye-oval entliziyweni yindlela yokwenza izinto eziphathekayo. Ngokubhekiselele ekungenakwenzeka kwemiphunga, akukho mfuneko yokuhamba okukhulu kwegazi kubo, i-oksijeni eyongeziweyo igazi ingena kwi-fetus.

Ukuvulwa okuvulekileyo phakathi kwe-atria kukuvumela ukuba ujikeleze isangqa encinci (impomnari). Le nqubo ibizwa ngokuba "ukuphepha". Ukongezelela, ukujikelezwa kwegazi ngale ndlela kuququzelela ukungena ngokuthe ngqo kwegazi ephuculwayo kwingqondo, eyakha ngokukhawuleza ngexesha le- embryonic.

Njengomthetho, iwindi ye-oval ivaliwe emva kokuzalwa. Oku kungenxa yokunyuka kwengcinezelo (ulawulo) kwicala lasekhohlo lentliziyo.

Kufuneka kuqatshelwe ukuba zonke iintsana zizalwe ngefestile evulekile. Njengoko uqeqesho lubonisa, kwimeko yesiqhelo, umgobo uvale ngeenyanga zokuqala. Nangona kunjalo, malunga ne-15-20% yezigulane zihlala iminyaka engamashumi amane kunye nefestile evulekile. Esi sibonakaliso sinxulumene nezinye iimpawu kwisakhiwo somgobo ngokwawo. Inyaniso kukuba iwindow ye-oval ine-flap, ebudeni ngexesha lokwephulwa kwi-atrium ekhohlo kuhlanganiswe. Ngaloo ndlela, ukungena kwegazi kwi-atrium efanelekileyo kunqandwa.

Kodwa kwezinye iimeko, ezinxulumene noxinzelelo olwandisiweyo kwisifuba esiphathelene nemvelaphi yokucindezeleka ngokomzimba (kunye nesenzo sokuxhatshazwa, ukukrazula, ukukhwehlela kunye nokunye uxinzelelo), i-flap ivula. Ukulondolozwa kwengxowa evulekileyo kuququzelelwe nakwezinye iziphene zesakhiwo sohlulo, kwakunye nobukhulu bewindow ovini ngokwayo.

Njengoko kuboniswa ukuboniswa, ukusuka ukusuka kwesobunxele kuya kwesokudla kwegazi ukusuka kwi-atrium ekhohlo ukuya kwesokunene akuhambisani nayo nayiphi na imiqondiso ebonisa ukuba khona kwayo, ngaloo ndlela ihamba, ingenakwenzeka. Ngaloo ndlela, ukukhululwa kwegazi kwicala elingaphambeneyo (ukusuka ngasekunene ukuya kwi-atrium engasekhohlo) kunokususa iimpawu ezingapheliyo okanye ezidlulileyo ze-cyanosis. Njengomthetho, le meko ibangelwa ukunyuka kwe-vascular resistance of pulmonary artery system kwinkqubo yokuhlaselwa kwe-apnea, ukulibazisa ukuphefumla, ukukhala kunye nezinye iingcinezelo. Ngokubhekiselele ekukhutsheni kwegazi kwi-atrium ekhohlo, kulo lonke ixesha elizalwayo, i-cyanosis engapheliyo ingaphikelela (umbala we-cyanotic yesikhumba kunye ne-mucosa). Iyakususa imeko emva kokuhla kokuncintisana kwimibhobho yemiphunga.

Iwindow oval evala emva kokudala ingabangela ukubunjwa kweendawo ezimbi. Ngaloo ndlela, ukuvulwa kwangethuba kokuvula kunokuhamba kunye nokuphazamiseka ekuphuhlisweni kwesigxina sekhohlo senhliziyo, ukubonakala kwe-hypoplasia kulezi ntliziyo zentliziyo.

Iwindow ye-oval, ubukhulu obukhulu, inokuvusa ukubunjwa kwe-embolism ephazamisayo, ihamba kunye nemiqondiso yokuhlaselwa kwexesha elide (ischemic) okanye isicroke. Ngokwezifundo, ifestile engavaliyo iyakwandisa amathuba okuhlaselwa kwesifo se-ischemic nge-40%.

Ukuba iimpawu zobuninzi befestile evulekile entliziyweni zithwala i-paroxysmal migraine entloko. Namhlanje, indlela yokuphuhliswa kweso sipala isakhange ifundwe ngokusesikweni kwimvelaphi yengxuma engafihliweyo. Ngokuqhelekileyo, ukuvela kwintlungu kuchazwa ngumbutho we-microembolization kwingqondo yegazi (amacandelo amancinci egazi), kwakunye nemiphumo yezinto ezifakwe kwimifuno kwaye zingene ngqo kwiinqanawa zobuchopho.

Ngokuqhelekileyo, phambi kwendawo evulekile entliziyweni, i-orthodoxy platypnea syndrome iyakhula. Le meko ibonakala ngokuhla kwe-saturation (i-saturation) yegazi kunye ne-oksijeni kwisikhundla sokuma kwesiqu, sihamba ne-dyspnea.