Iyo placenta inhengo yakasiyana-siyana inobatsira mwana kukura, kukura, kugamuchira zvese zvinodikanwa zvinodiwa uye kunyange oksijeni. Inopfuura nzira yekufambira mberi kubva kuhombodo yakaoma (chorion) kusvika kune dense yakavhara chigadziko chechibereko chechibereko. Sezvo iri iyo placenta iyo inonyanya kukosha pakuchengetwa kwemwana, vanachiremba vanonyatsoteerera. Itai zvigaro zvishoma zvekukura kwepentecenta , iyo inopfurikidza nekuwedzera kwesimba.
Chiyero chekutsvaga kwepascenta
I-placenta inoumbototerera vhiki yegumi nembiri uye inotora pamabasa ekudyisa mwana uye kuronga mahomoni anobva maamai. Nokudaro iyo placenta iri mukugadzirisa kwekuchinja, kuchinja kune zvinodiwa zvomwana. Panguva yekuongorora ultrasound, iyo inoitiswa pamasvondo makumi maviri nemakumi maviri nemaviri, kana kuti kakawanda, maererano nezviratidzo, nyanzvi dzinonyatsoongorora chirongwa chekukura kwayo. Ichokwadi ndechekuti kuchinja kunogona kunge kusingori kwepanyama chete, hupenyu, asiwo hutachiona. Muchiitiko ichi, chisarudzo chinoitwa pamashandisirwo emishonga kana kunyange kutengeswa kwekukurumidza.
Kukura kwechikamu chepallecenta kwakagadzirirwa sei?
Itareta mumadzimai ane pamuviri ane chimwe chimiro, icho chinoongororwa ne ultrasound. Chiero chekukura chinowirirana ne-placenta, ine chimiro chakafanana chisina chero inclusions. Sezvo mutemo, placenta yakadaro inocherechedzwa kubva pakutanga kwechipiri chetatu uye inopera kusvika masvondo makumi matatu. Zvisinei, pakutanga kwemavhiki makumi maviri nembiri, kuchinja kwechimiro che placenta kunogona kuitika, echogenic inclusions kuoneka, kusuruvara kuduku kunoonekwa. Ichi ndicho chikwata chekutanga chepentecenta. Zvishoma nezvishoma mu-placenta, kuchinja kwakanyanya uye kwakanyanya kunoratidzika, huru uye duku kuwedzera kwekuwedzera. Pedyo nekubereka mwana, anenge mavhiki 37-38 ekuzvitakura, iyo placenta inowana sarudzo yakashata, pane nzvimbo dzekuisa dhaka, iyi ndiyo yechitatu yekukura. Kana kuchinja kwezvivako zvisingaenderani nezwi, saka kusasarirwa kusati kwapera kwepentecenta kunoonekwa .
Chiremba chekutanga chekukura kwepentecenta
Dzimwe nguva, kana mamiriro acho ezvinhu achiita asinganzwisisiki, nyanzvi mune proxy ultrasound inogona kunyora kuwedzerwa kwekutsvaira kwemalacenta 0 1 kana kukura kwepentecenta 1 2. Kana nguva iyo iri pamaganho ezvidimbu zvakasiyana-siyana zvekutsvaira muviri, zvino mamiriro ezvinhu akaenzana. Kana nguva yacho ichangopera, muchecheti anonyatsocherechedza pamuviri wako achatora zvose zviyero zvekutadzisa kufunganidzwa kwepentecenta, pamwe nekunyatsotarisa mamiriro emwana. Mukuwedzera, zvakakosha kuongororesa hutachiwana hwehutachiona hwekubuda ropa, izvi zvichasimbisa kana kuramba kufungidzirwa.
Kunyange zvakadaro, kukura kwepentecenta 1 inobvumira mwana kuti awane zvakanaka ane mishonga uye kazhinji padanho rino kubvaruka kusati kwava kuda kunongoda kungoona. Pakuzotevera ultrasound, amai vachaongorora kukura kwepentecenta uye, kana zvichifanira, gadzirisa urongwa hwekurapa.
Panewo mamiriro akasiyana-siyana, gare gare kusimwa kwepentecenta, hazviwanzopindi, asi kana zvakadaro iyo placenta ichiri muchitanga chekutanga mushure memasvondo 34-35, nyanzvi dzinogona kukanganisa kupesana mukugadzirwa kwecheche, uyewo matambudziko muhutano hweamai. Izvi zvinodawo kuongororwa kwepamusoro.
Kuchengetwa kwepentecenta kunowirirana zvakakwana, uye ultrasound inzira yekuongorora yekuongorora. Zvisinei, kana pane kusava nechokwadi kwekutanga kana kuve nekutsvaga kwekutsvaga kwepentecenta, unofanirwa kuongororazve kuongororwa, kuita zvimwe zvidzidzo, uye kana zvichidiwa - kurapwa. Ichi ndicho chivimbo chehutano hwechecheche.