Sezvaunoziva, inenge nhengo dzose dze fetus dzinotanga basa radzo asati aberekwa. Saka, mwoyo unokurudzira ropa richiyerera mukati memidziyo, itsvo dzinobudisa urini, gland dzinoita mahomoni.
Chero fetus isiri iyo iyo isingashandisi mukati momuviri wevakadzi. Nekugomera kokutanga, vanoruramisa uye vanotanga basa ravo.
Ndiko kuberekwa kwomwana kuti mwoyo unotanga kushanda nesimba. Nokudaro, amai vanogona kuona kuti sei neonatologist, achishandisa stethoscope, anoteerera mwoyo wemwana achangoberekwa kuti arege kubvisa mhere.
Kurongwa
Mheremhere yose inowanikwa mumoyo yevana vacheche inogona kugoverwa kuva isina mhosva uye inoratidzika. Yokutanga kazhinji inomuka nekuda kwekuumbwa kwezvimwe zvinyorwa mumoyo. Muchiitiko ichi, hemodynamics haisati yakanganiswa.
Ruzha rwechirwere runoitika nezvirwere zvakadai se:
- chirema chekuparadzanisa;
- stenosis yemapurmonary arteri ;
- kuvhura duct arterial.
Zvirwere zviri pamusoro apa nguva dzose zvinoperekedza zviratidzo zvakanyanya zvakaoma, saka kuongororwa hakuiti zvinetso zvakakosha.
Zvinokonzera mwoyo kun'un'una
Vabereki vaduku vakawanda vanotya nehana imwe chete yokuti mwana wavo achangoberekwa angave ane mwoyo unogunun'una. Iko kutya kunonzwisisika, sezvo kuongororwa hakugoni kuitwa chete semugumisiro wekubvisa.
Zvinokonzera mhere inowanikwa mumoyo wechecheche inogona kuve yakasiyana. Muzviitiko zvakawanda, zviitiko zvavo ndeyekuguma kwekushandurwa kwemushonga we intrauterine kune extrauterine. Saka mumucheche, ropa rakavhenganiswa chete rinoyerera kuburikidza nemidziyo yeropa, iyo inosanganiswa nemitambo yematomu. Kusanganiswa kwehutano neropa uye mumuviri wemwana kunokonzerwa nekuvapo mukati memwoyo we 3 anatomical formations:
- ovha window;
- arterial duct;
- chipfuva chinotyisa.
Mushure mokuberekwa, vanoramba vachishanda kwenguva pfupi uye apo mwana anokura pedyo. Ndicho chikonzero, mumazuva okutanga ehupenyu ruzha runogona kuwedzerwa, sezvo zvataurwa pamusoro apa zvichiri kushanda.
Arterial duct
Batalov (arterial) duct ndiyo yekuumbwa kunobatanidza pakati peguru remapurmoni uye aorta. Inopedza mavhiki maviri mushure mekuberekwa kwechecheche. Muzviitiko zvisingawanzoitiki, inokura kusvika kumwedzi miviri. Kana mushure mezera iri munguva yeECHO-CG mukati memwoyo wevana vasati vasvika, mhere inowanikwa, izvi zvinoratidza kukura kwekusangana kwemaitiro.
Ovha window
Iyo inogadzirwa nemaatomical inowanikwa mu septum iri kuparadzanisa cherechedzo yeatrium. Kuvharwa kwaro, sekutonga, kunowanikwa mumwedzi wokutanga uye kunobatanidza nekufamba zvishoma nezvishoma, kuwedzerwa kudzvinyirira kuwedzerwa muchechi yekunze. Vanaamai vakawanda, vane vana vanoberekerwa vana vanoonekwa kuti vane mwoyo yekugunun'una nekuda kwekuvapo kwewindo revharo, kushungurudza kana iri ngozi uye kana zvakadaro, yakawanda sei? Hapana chinhu chokufunganya nezvazvo - hwindo revharivha rinogona kuvhurwa zvakakwana, uye nemakore maviri, uye kuvapo kwayo zvinenge zvisingatauri humodynamics chero ipi zvayo.
Dhamba rinotyisa
Nheyo huru yemugwagwa unopisa ndeyekubatanidza miviri yakadzika uye yepamusoro. Iyo inonyangarika nokukurumidza zvikuru mushure mekuberekwa, uye inoshandurwa kuva tambo yakave nehutano hunoshandiswa.
Pasinei nokuti chii chinokonzera kuitika, chero ruzha mumoyo runofanirwa kuve rwakanyatsoongorora. Izvo vana, vane ruzha rwechiratidzo chepachirwere chepfungwa , vanoda nguva dzose kutevera. Kana zvichibvira, kupindira kwekuvhiya kunoitwa, chinangwa chacho ndechokubvisa chakaremara.