I-Nuchal translucency: yintoni, yenzelwe ntoni kwaye yenziwa njani

Umxholo

• Loluphi uvavanyo
• Kwenziwa njani kunye nexabiso lesalathiso
• Uyenza nini i-nuchal translucency

Ukuguquguquka kwe-nuchal luvavanyo, olwenziwa ngexesha le-ultrasound, esetyenziselwa ukulinganisa isixa samanzi kwingingqi yentamo yomntwana kwaye kufuneka senziwe phakathi kwiveki ye-11 neye-14 yokukhulelwa. Olu vavanyo lusetyenziselwa ukubala umngcipheko womntwana onesiphene okanye isifo, njenge-Down syndrome.

Xa ukungalunganga okanye izifo zemfuza zikhona, umbungu uthambekele ekuqokeleleni ulwelo kwi-nape yentamo, ke ukuba umlinganiso we-nuchal translucency unyukile, ngaphezulu kwe-2.5 mm, oko kuthetha ukuba kungabakho utshintsho kuphuhliso lwayo.

Loluphi uvavanyo

Umlinganiso we-nuchal translucency awuqinisekisi ukuba umntwana unesifo semfuza okanye ukungalunganga, kodwa iyabonisa ukuba ingaba umntwana unengozi eyongezelelekileyo yokufumana olu tshintsho.

Ukuba ixabiso lovavanyo litshintshiwe, ugqirha oza kubelekisa uya kucela ezinye iimvavanyo ezinje nge-amniocentesis, umzekelo, ukuqinisekisa okanye ukungachongi isifo.

Kwenziwa njani kunye nexabiso lesalathiso

Ukuguquguquka kwe-nuchal kwenziwa ngexesha elinye lokukhulelwa kokubeleka kwaye, ngalo mzuzu, ugqirha ulinganisa ubungakanani kunye nenani lamanzi akummandla osemva kwentamo yosana, ngaphandle kwemfuneko yayo nayiphi na inkqubo ekhethekileyo.

Ixabiso le-nuchal translucency linokuba:

• Eqhelekileyo: ngaphantsi kwe-2.5 mm
• Tshintshiwe: ilingana okanye inkulu kune-2.5 mm

Uviwo olonyuke ngexabiso aluqinisekisi ukuba usana lunengxaki, kodwa ke lubonisa ukuba kukho umngcipheko omkhulu, ke ngoko ugqirha oza kubelekisa uza kucela ezinye iimvavanyo, ezinje nge-amniocenteis, ethatha isampulu ye-amniotic fluid, okanye i-cordocentesis, evavanya isampulu yegazi. Funda ngakumbi malunga nendlela eyenziwe ngayo i-amniocentesis okanye i-cordocentesis.

Ukuba ngexesha le-ultrasonography kukho ukungabikho kwethambo lempumlo, umngcipheko wolunye uguquko lonyuka ngakumbi, kuba ithambo lempumlo alikho ngokubanzi kwiimeko ze-syndromes.

Ukongeza kwi-nuchal translucency, iminyaka yoomama kunye nembali yosapho yotshintsho lwe-chromosomal okanye izifo zofuzo zikwabalulekile ukubala umngcipheko wosana lokuba nolunye lolu tshintsho.

Uyenza nini i-nuchal translucency

Olu vavanyo kufuneka lwenziwe phakathi kwe-11 ukuya kwi-14 iveki yokukhulelwa, nanjengoko kuxa umbungu uphakathi kwe-45 kunye ne-84 mm ubude kwaye kunokwenzeka ukubala umlinganiso we-nuchal translucency.

Inokwaziwa ngokuba ne-morphological ultrasound yekota yokuqala, kuba, ukongeza kumlinganiso wentamo yomntwana, ikwanceda ekuchongeni ukungalunganga emathanjeni, entliziyweni nasemithanjeni yegazi.

Funda ngezinye iimvavanyo ezifunekayo kwikota yokuqala yokukhulelwa.