Munguva yehutumbi hwose (kunze kwezvikamu zvayo zvekutanga), fetus inopoteredzwa neamniotic fluid, kana amniotic fluid. Iyi nharaunda, iyo iyo mwana inoputika, kufanana nomudzidzi munharaunda yakasununguka, kwete kungomudzivirira kubva kune dzimwe nyika uye yekuchengetedza kutengesa kwakakodzera, asiwo inobatanidzwa mune metabolism. Nhamba yemamniotic fluid kwemwedzi mipfumbamwe inoramba ichichinja, asi panguva imwe neimwe yehupamuviri kune maitiro ehuwandu hweamniotic fluid. Kukanganisa mune imwe nzira kana imwe inogona kureva kuti chibereko hachina kunaka.
Norm ye amniotic fluid panguva yekuzvitakura
Nhamba ye amniotic fluid inogona kuva 600-1500 ml. Nhamba ye amniotic fluid isingapfuuri 500 ml inonzi inofanana, inopfuura 1,5-2 litres is polyhydramnios. Iyo ultrasound inogona kubatsira kuti iite zvakajeka kuongorora.
Munguva yeurongwa hwe ultrasound, nyanzvi inoratidzika inotarisa chiyero chemvura kuburikidza nekutsvaga kutengesa. Kana pane zvakawanda zveamniotic fluid, polyhydramnios inowanikwa, kana pane zvishoma-mvura. Pachinhu chero chipi zvacho chinotsauka kubva pane chimiro, chiremba anonyatsoongorora-kuverenga nhamba ye amniotic fluid. Nokuda kweizvi, uterine cavity inowanikwa zvakaparadzana kuita zvikamu zvina zvakaenzana nemitsetse miviri, imwe yadzo inopfuurira mberi, pamwe nemutsara wakachena wekuita pamuviri, uye imwe-yakananga pamatanho ekunyora. Muchikamu chimwe nechimwe, nzvimbo yakakwana yehomwe (isina nzvimbo pakati pehutanda uterine uye fetus) inotariswa, zvigumisiro zvakapfupiswa, zvichipa rondedzero ye amniotic fluid.
Kwenguva yega yega yepamuviri pane mitemo yechiratidzo ichi. Semuenzaniso, nhamba ye amniotic fluid inowanzoitika panguva yevhiki makumi maviri nemasere e 14,5 cm, kana 145 mm (kuchinja kunokodzera kunofanirwa kuwirirana mukati mepakati ye 89-235 mm). Uye pamasvondo makumi maviri nechinomwe nhamba ye amniotic fluid ichave ine 144 mm, nekusvibiswa mukati ma 77-269 mm. Maitiro ezvinyorwa zvakasiyana-siyana zvekuzvitora anogona kuwanikwa mumutsetse wekanyorwa we amniotic fluid index .
Amniotic fluid index - zvisiri izvo
Pamusoro pezvakatsauka kubva pane zvinowanzoti muitiko apo nhamba yeamniotic fluid yakaderera kana yakakwirira kupfuura inoratidzirwa mumatafura ehutano. Zvose ma polyhydramnios uye oligohydramnios zvinoratidza kuti zvinogona kuitika pakukura kwe fetus kana panguva yekuzvitakura.
Mukana wei polyhydramnios, mwana wacho anowanzotora nzvimbo isina kukodzera mumubereki, uye dzimwe nguva anotendeuka mutsara wembilical. Kunyanya amniotic fluid inogona kukonzera kusununguka kwavo kusati kwapera uye kuberekwa kusati kwapera. Kuwedzerwa kwechibereko chinowedzera mukusununguka uye munguva yekupedzisira, iyo inogona kutungamirira kuutera hwebasa nekuvandudzwa kwekubuda ropa.
Zvinonyanya kukonzera polyhydramnios ndezvi:
- kusagadzikana (kwekutya uye kugadzirisa zvirongwa) uye chromosomal kusagadzikana kwe fetus;
- fetoplacental insufficiency;
- pamuviri nekuda kwerhesus-kukakavara;
- chirwere chinopararira chemukadzi ane pamuviri;
- chirwere cheshuga mellitus muvakadzi vane pamuviri.
Kana nhamba yeamniotic fluid inoratidza kushayikwa kwemazviratidzo mumvura muchikamu chechipiri chepamuviri, saka mamiriro ezvinhu anotyisa angasimuka-kuomesa kwembilical cord. Mukuwedzera, mwana wacho akabatwa mukati mechiberekero, kufamba kwake kunogumira. Vana vakadaro vanowanzova nezvinetso nemasana uye musungo wekuputika mushure mekuberekwa.
Kubudirira kwekushaya zvokudya zvinovaka muviri kunogona kutungamirira kune:
- kusagadzikana kwe fetus (excretory system neimpso);
- hypoxia uye fetal hypotrophy;
- fetoplacental insufficiency;
- kubata nguva isati yasvika;
- chirwere chinopararira;
- hutachiona hwehutachiona hwomukati;
- kusvuta.
Kusiyana nekutenda kwevamwe vakadzi, huwandu hwemvura inomwa hahupi hunochinja kuchinja kwehuwandu hweamniotic fluid mu placenta.