Contents
Menene nuchal translucency?
Nuchal translucency, kamar yadda sunan ke nunawa, yana tsaye a wuyan tayin. Yana faruwa ne saboda ɗan ƙaramin rabewa tsakanin fata da kashin baya kuma yayi daidai da abin da ake kira anechoic zone (wato wanda baya mayar da amsawa yayin bincike). Duk 'yan tayin suna da bayyanar cututtuka a farkon watanni uku na farko, amma bayyanar nuchal sai ta tafi. Mayar da hankali kan nuchal translucency.
Me yasa ake auna ƙima?
Aunawa nuchal translucency shine mataki na farko na tantance cututtukan chromosomal, musamman ga trisomy 21. Hakanan ana amfani da shi don gano abubuwan da ba su da kyau a cikin kewayawar lymphatic da wasu cututtukan zuciya. Lokacin da ma'auni ya bayyana haɗari, likitoci sunyi la'akari da shi "alamar kira", abin da ke haifar da ƙarin bincike.
Yaushe ake aunawa?
Ya kamata auna ma'aunin translucency nuchal a lokacin duban dan tayi na farko na ciki, watau tsakanin makonni 11 zuwa 14 na ciki. Ya zama wajibi a yi jarrabawar a wannan lokaci, domin bayan watanni uku, bacewar nuchal.
Nuchal translucency: ta yaya ake ƙididdige haɗarin?
Har zuwa 3 mm kauri, nuchal translucency ana ɗaukar al'ada. Sama, Ana ƙididdige haɗarin bisa ga shekarun haihuwa da lokacin daukar ciki. Tsohuwar mace, mafi girman haɗari. A gefe guda, mafi yawan ci gaba da ciki shine a lokacin ma'auni, yawancin haɗarin yana raguwa: idan wuyansa ya kai 4 mm a cikin makonni 14, haɗarin ya fi ƙasa idan ya auna 4 mm a cikin makonni 11.
Ma'aunin fassarar Nuchal: shin 100% abin dogaro ne?
Ma'aunin fassarar nuchal zai iya gano fiye da 80% na lokuta na trisomy 21, amma 5% na lokuta masu kauri sun zama masu kauri. arya tabbatacce.
Wannan jarrabawar tana buƙatar madaidaitan dabarun aunawa. A lokacin duban dan tayi, ingancin sakamakon zai iya lalacewa, misali ta wurin mummunan matsayi na tayin.
Nuchal translucency ma'auni: menene na gaba?
A karshen wannan gwajin, ana ba da gwajin jini mai suna assay of serum markers ga duk mata masu juna biyu. Sakamakon wannan bincike, haɗe tare da shekarun haihuwa da kuma ma'auni na nuchal translucency, yana ba da damar yin la'akari da hadarin trisomy 21. Idan wannan yana da girma, likita zai ba wa mahaifiyar zabin da dama: ko dai TGNI , rashin cin zarafi na ciki. nunawa (samfurin jini daga uwa) ko yin trophoblast biopsy ko amniocentesis, mafi cin zali…. Waɗannan gwaje-gwaje biyu na ƙarshe sun ba da damar yin nazarin karyotype na tayin da sanin daidai idan yana da cutar chromosomal. Hadarin zubar da ciki shine 0,1% na farko da 0,5% na na biyu. In ba haka ba, cardiac da morphological ultrasounds za a ba da shawarar.