Mukati
Chii chinonzi nuchal translucency?
Nuchal translucency, sezvinoreva zita, iri pamutsipa we fetus. Izvo zvinokonzerwa nediki diki pakati peganda uye musana uye rinoenderana neanonzi anechoic zone (ndiko kuti iyo isingadzoki echo panguva yekuongororwa). Mafetus ese ane nuchal translucency mufirst trimester, asi nuchal translucency inobva yaenda. Tarisa pane nuchal translucency.
Sei kuyera nuchal translucency?
Kuyera kwe nuchal translucency ndiyo nhanho yekutanga mukuongorora zvirwere zvechromosomal, uye kunyanya trisomy 21. Inoshandiswawo kuona kusagadzikana mu lymphatic circulation uye zvimwe zvirwere zvemoyo. Kana kuyerwa kunoratidza njodzi, vanachiremba vanoiona se "chiratidzo chekufona", chinokonzeresa chekuwedzera tsvakurudzo.
Muyero wacho unotorwa riini?
Nuchal translucency kuyerwa kunofanira kuitika panguva yekutanga ultrasound yekuzvitakura, kureva pakati pemasvondo gumi nerimwe kusvika gumi nemana ekuzvitakura. Izvo zvakakosha kuti kuongororwa kuitwe panguva ino, nekuti mushure memwedzi mitatu, nuchal translucency inonyangarika.
Nuchal translucency: njodzi dzinoverengerwa sei?
Kusvika ku3 mm gobvu, nuchal translucency inoonekwa seyakajairika. Pamusoro, njodzi dzinoverengerwa zvichienderana nezera raamai uye nguva yekuzvitakura. Mukadzi mukuru, njodzi huru huru. Kune rumwe rutivi, iyo yakanyanya kukura pamuviri panguva yekuyerwa, iyo inowedzera ngozi inoderedzwa: kana mitsipa inoyera 4 mm pamasvondo gumi nemana, njodzi dzakaderera kudarika kana yakayera 14 mm pamasvondo gumi nerimwe.
Nuchal translucency kuyerwa: ndeye 100% yakavimbika here?
Iyo nuchal translucency kuyerwa kunogona kuona zvinopfuura 80% zvezviitiko zve trisomy 21, asi 5% yemakesi emitsipa yakakora zvakanyanya inoshanduka kuva. positi dzenhema.
Ongororo iyi inoda nzira dzekuyera dzakanyatsojeka. Munguva ye ultrasound, hutano hwechigumisiro hunogona kukanganisa, semuenzaniso nechinzvimbo chakashata che fetus.
Nuchal translucency kuyerwa: chii chinotevera?
Pakupera kwekuongorora uku, kuongororwa ropa kunonzi assay of serum markers kunopiwa kumadzimai ose ane pamuviri. Migumisiro yekuongorora uku, kusanganiswa nezera reamai uye kuyerwa kwekushanduka kwe nuchal, zvinoita kuti zvikwanise kuongorora njodzi ye trisomy 21. Kana izvi zvakakwirira, chiremba achapa amai maitiro akawanda: kana TGNI , kwete-invasive prenatal. kuongorora (sample yeropa kubva kuna amai) kana kuita trophoblast biopsy kana amniocentesis, inoparadza…. Iyi miedzo miviri yekupedzisira inoita kuti zvikwanise kuongorora karyotype yefetus uye kuziva chaizvo kana ine chirwere chechromosomal. Ngozi yekubvisa pamuviri iri 0,1% yekutanga uye 0,5% yechipiri. Zvikasadaro, cardiac uye morphological ultrasounds inokurudzirwa.