Njengoba wazi, cishe zonke izitho zomntwana ziqala umsebenzi wazo ngisho nangaphambi kokuzalwa kwakhe. Ngakho-ke, inhliziyo ikhuthaza ukugeleza kwegazi ezitsheni, izinso ziveza umchamo, izigulane zenza ama-hormone.
I-fetus kuphela yilungu elingasebenzi ngaphakathi komzimba wesifazane. Ngokububula kokuqala, baqondisa futhi baqale umsebenzi wabo.
Kuwukuzalwa kwengane lapho inhliziyo iqala ukusebenza ngenkuthalo. Ngakho-ke, umama angakwazi ukubona ukuthi i-neonatologist, esebenzisa i-stethoscope, ilalele izinhliziyo zomntwana osanda kuzalwa ukuze akhiphe imisindo.
Ukuhlukaniswa
Yonke umsindo ovela enhliziyweni yezingane ezisanda kuzalwa ingahlukaniswa ibe yinto engenacala nangokwemvelo. Owokuqala uvame ukuvela ngenxa yokwakheka kwamakhotho engeziwe enhliziyweni. Kulokhu, i-hemodynamics ayiphazamiseki.
Umsindo ongezwayo uvela ngezifo ezinjengokuthi:
- isici sehlukaniso;
- isisu se-artery yamapayipi ;
- ukuvulwa komgwaqo ovulekile.
Izifo ezibalwe ngenhla zihamba njalo zihambisana nesifo esibonakalayo esinamandla kakhulu, ngakho ukuxilongwa kwabo akubanga nezezinkinga ezikhethekile.
Izimbangela zenhliziyo zikhononda
Abazali abaningi abasha bayethuka ngomqondo owodwa wokuthi umntwana wabo osanda kuzalwa angase abe nezinhliziyo ezibubulayo. Lokhu kwesaba akunangqondo, ngoba ukuxilongwa akunakwenziwa nje ngenxa yesikhukhula.
Izimbangela zomsindo ezihlolwe enhliziyweni yengane ingazalwa. Ezimweni eziningi, ukutholakala kwabo kuwumphumela wokuguqulwa kwe-intrauterine kuya kwe-extrauterine. Ngakho-ke ebusweni, igazi elixubene kuphela ligeleza emithanjeni yegazi, ehambisana nezici zesimo. Ukuhlanganiswa kwegazi lokugaya kanye ne-venous emzimbeni wengane kubangelwa ukuba khona enhliziyweni yezinhlobo ezintathu zokuthi:
- iwindi le-oval;
- umzila wokuguqula;
- umgwaqo we-venous.
Ngemva kokuzalwa, baqhubeka nokusebenza isikhathi esifushane futhi njengoba ingane ikhula. Yingakho, ezinsukwini zokuqala zomsindo wokuphila kungasuswa, njengoba izinhlaka ezibalulwe ngenhla zisasebenza.
Umzila wokuguqula
Ibhande le-Batalov (eliyingxubevange) yilona isakhiwo esixhuma phakathi kwesiqu se-pulmonary kanye ne-aorta. Ivala amasonto amabili emva kokuzalwa kwengane. Ezimweni ezingavamile, ikhula ezinyangeni ezimbili. Uma ngemuva kwalesi sikhathi phakathi kwe-ECHO-CG enhliziyweni yengane engakafiki, kutholakala imisindo, lokhu kubonisa ukuthuthukiswa kwenkinga yokuzalwa kwengane.
Iwindi le-oval
Kuyinto yokwakhiwa kwama-anatomical etholakala kule septum ehlukanisa i-atrium cavity. Ukuvalwa kwalo, njengombuso, kwenzeka ngenyanga yokuqala futhi kuhlotshaniswa nokuhamba kancane, okwandisa ukwanda kwengcindezi ku-atrium kwesokunxele. Omama abaningi, izingane zabo ezisanda kuzalwa zitholwa ukuthi zinezinhliziyo ezibubulayo ngenxa yokuba khona kwefasitela elifuywayo, sikhathazeke ngokuthi kuyingozi futhi uma kunjalo, kungakanani? Akukho lutho lokukhathazeka ngalo - ifasitela le-oval lingavaliwe ngokuphelele, futhi ngeminyaka emibili, futhi ukutholakala kwayo cishe akuthinti i-hemodynamics nganoma iyiphi indlela.
Umzila we-Venous
Umsebenzi oyinhloko we-conve ye-conous ukuxhuma imithanjeni engezansi engavamile. Iyanyamalala ngokushesha ngemuva kokuzalwa, futhi iguqulwa ibe yintambo equkethe izicubu ezixhunyiwe.
Kungakhathaliseki imbangela yalokho kwenzeka, noma yikuphi umsindo enhliziyweni kufanele uhlolwe ngokuphelele. Lezo zingane, ezinomsindo wesifo senhliziyo , zidinga ukulandelwa njalo. Uma kunokwenzeka, ukungenelela kokuhlinzwa kwenziwa, inhloso yalo ukuqeda isici.