El non-invasive prenatal test Muedzo waunawo kukwanisa kuona kuchinja kwechromosomal mu fetal DNA kuburikidza neropa raamai. Inopa 99% kuvimbika uye Haisi ngozi kuna amai kana fetus, kukwanisa kuita kubva pavhiki yegumi yekuzvitakura.
Kuburikidza nekutorwa kuri nyore kweropa kubva kuna amai, DNA yemahara inotenderera muplasma yaamai inogona kuwanikwa. Saka, kuburikidza nekuteedzera tekinoroji uye advanced bioinformatic ongororo, inobvumira kuziva bonde remwana uye kuona zvinogoneka chromosomal abnormalities zvakadai se trisomy 21 (Down syndrome), trisomy 13 (Patau syndrome), trisomy 18 (yakabatana neEdward syndrome) uye aneuploidies inobatanidza nepeya yemakromosome epabonde.
Ndeipi nguva yekuita iyo isiri-invasive prenatal test?
Imwe yemabhenefiti makuru eiyo isiri-invasive prenatal bvunzo ndeyekuti inogona kuitwa pakati pevhiki 9 ne10 yekuzvitakura. Panguva iyoyo, inofanirwa kunge iri nyanzvi yegynecology inokurudzira kuita kwebvunzo uye iyo nguva yakakwana yemurwere wega wega, maererano nenhoroondo yavo uye mamiriro ekuzvitakura.
Mukuwedzera, sezvo uri muedzo usingakanganisi mai kana kuti mucheche, unogona kubatsira zvikuru mukadzi upi noupi ari kutarisira mwana, pasinei nokuti ari mudumbu mumwe chete here kana kuti akawanda. Zvisinei, iri a bvunzo inokurudzirwa kunyanya kune vakadzi vane makore ekuzvarwa ari makore makumi matatu nemashanu kana kupfuura, sezvo, kana amai vakura, mwana anowedzera ngozi yokutambura nechinetso chemajini. Inokurudzirwawo zvikuru kana ultrasound ichiratidza kunyumwira kwezvinetso zvemajini muchibereko, kana amai vakatotambura kuchinjwa kwechromosomal mune dzimwe pamuviri kana kana amai vatova nekuchinja kwemajini kunogona kukanganisa fetus.
Nzira yekududzira sei mhinduro yeasina-invasive prenatal test?
The non-invasive prenatal test inobvumira kuongorora uye kuona zvinogona kuitika zve fetal chromosomal panguva yekuzvitakura. Iye bvunzo ine diki yekupinda nayo yekuona kuti hapana mhando yechromosomal abnormality, asi sei kududzira iyo data kubva muyedzo yekuzvara?
Kana test yaitwa, mhedzisiro inowanzova mumazuva 7-10. Ipapo ndipo apo mhedziso dzinogona kutorwa zvichibva pane data yakawanikwa. Ramba uchifunga kuti bvunzo mhinduro inhamba uye mhedzisiro ichabva pazana muzana:
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- Ngozi yakaderera kana yakaipa: kana bvunzo iri isina kunaka kana yakaderera njodzi, zvinoreva kuti hapana kana mukana wekuchinja kwechromosomal.
- Dambudziko guru kana rakanaka: Kana bvunzo iri yakanaka, zvichave zvakafanira kuita mamwe maedzo ekuongorora ayo anosimbisa shanduko yechromosomal nechokwadi.
- Hazvina kukwana: pane dzimwe nguva bvunzo yeprenatal isiri-invasive haina kukwana. Kana izvi zvikaitika, zvinokurudzirwa kudzokorora bvunzo imwe nguva gare gare.