Uphuhliso oluqhelekileyo lokukhulelwa kunye nekhosi yokuzalwa ngokwayo kuxhomekeke kakhulu kummandla we-placenta. Nguye onoxanduva lokusondeza umntwana kunye nokunikezela nge-oxygen. Ngoko ke, oogqirha bajongene nalo mzimba ukukhulelwa konke.
Ukuziphatha rhoqo kwe-ultrasound kuya kuvumela ukufumana nayiphi na into eyenzekayo ngexesha kwaye uthathe amanyathelo afanelekileyo. Isifundo sichaza indawo yendawo yomntwana, iqondo lokukhula kwalo, ubukhulu be-placenta , isakhiwo.
Kwaye ukuba umfazi utsheliwe ukuba kukho isakhiwo esinqununu se-placenta, oku, oku, kubangela ukuba uxhalabe kunye nexhala. Kwaye akumangalisi oku, kuba i-placenta, ngaphezu kokutya kunye nokuphefumula, isebenza njengomkhuseli ngokuchasene nezifo, umthengisi weemodemoni ezifunekayo kunye nokuthuthwa kwemveliso yobomi bomntwana esibelethweni.
Yintoni ebangela i-placenta engqalileyo?
Akusoloko i-heterogeneity ye-placenta yimbangela yokuxhalabisa. Kwezinye iimeko, imeko enjalo ithathwa njengesiqhelo. I-placenta ekugqibeleni yenziwa ngeveki ye-16. Kwaye emva koko, kude kube ngeveki yama-30, isakhiwo se-placenta akufanele sitshintshe. Kwaye kufuneka ukhathazeke ukuba ngaba ngeli xesha ixesha ugqirha lifumana utshintsho kwisakhiwo salo.
Isizathu sokukhathazeka sisakhiwo se-placenta sokwandiswa kwe-echogenicity kunye nokufumanisa iziganeko ezahlukeneyo kulo. Kule meko, isakhiwo esiqingqiweyo sesebe sibonisa ukuphulwa komsebenzi oqhelekileyo.
Isizathu sale ngxaki singaba nezifo ezikhoyo kumzimba womfazi. Ukuchaphazela kakubi ukuphuhliswa kwe-placenta, ukutshaya, utywala, i-anemia nezinye izinto. Njengomphumo we-heterogeneity ye-placenta, ukuhamba kwegazi phakathi komama nomntwana kunokuphazamiseka, oku kuya kubachaphazela okokugqibela. Ngenxa ye- fetal hypoxia, ukukhulelwa kunganciphisa kwaye kuphelise ngokupheleleyo uphuhliso lomntwana.
Ukuba utshintsho kwisakhiwo se-placenta lufumaneka emva kweeveki ezingama-30, oku kuthetha ukuba yonke into iyinto eqhelekileyo kwaye iyahamba kulindeleke. Ngamanye amaxesha nakwiveki 27, utshintsho lubonwa njengesiqhelo, ukuba akukho nto engafanelekanga ekukhuleni komntwana.
Kukho irekhodi kwizigqibo ze-ultrasound "isakhiwo se-placenta kunye nokwandiswa kwe-MVP." I-MVP iindawo eziphambeneyo, indawo kwindawo ye-placenta, apho kukho imetabolism phakathi kwegazi lomama nomntwana. Ukwandiswa kwezi zithuba kudibaniswa nesidingo sokwandisa indawo yokutshintshiselwa. Kukho iindlela ezininzi zokwandisa isikhungo sokufumana inzuzo, kodwa asihambelani nophuhliso lwe-fetoplacental insufficiency. Ngolu xilongo, akukho uphando olongezelelweyo olufunekayo.
Isakhiwo esiqingqiweyo se-placenta kunye nokubalwa kwesinye esinye isantluko sesakhiwo se-placental. Kule meko, ingozi ayikho ukubalwa njengaloo nto, kodwa ubukho babo. Zithintela i-placenta ukwenza imisebenzi yayo ngokuzeleyo.
Isakhiwo se-placenta kunye nokubala okuncinci ekukhulelweni kokukhawuleza akusona isizathu sokukhathazeka. Oku kunokwenzeka ukubonisa ukuguga kwephacenta, emva kweeyure ezingama-37 eziqhelekileyo. Kwi-50% yamatyala emva kweeveki ezingama-33 kwi-placenta, i-calcicates ifunyenwe.
Iqondo lokuvuthwa kwe-placenta kunye nesakhiwo sayo
I-placenta ibonakala ngokucacileyo kwi-ultrasound, ukuqala ngeveki le-12. Ngeli xesha, i-echogenicity yayo ifana ne-echogenicity ye-myometrium. Kwinqanaba lokukhula 0, isakhiwo esifanayo se-placenta siyaqatshelwa, oko kukuthi, isakhiwo esihambelana nesiqhelo esenziwe ngumtya we-chorionic.
Kakade kwinqanaba 1, isakhiwo se-placenta silahlekelwa ukulingana kwayo, izikhokelo ze-echogenic zivela kuyo. Isakhiwo se-placenta yesigangatho sesi-2 sibonakaliswe ngokubonakala kweendawo ezichasayo ngendlela yeefomas. Kwaye ibakala lesi-3 libhekiselele ekunyuseni ukubalwa kwepentecenta.