Vitrification yog dab tsi thiab qhov twg yog qhov nws tau thov?
Txoj kev ua kom zoo tshaj plaws no zoo ib yam li cryopreservation, uas yog khov ntawm poj niam txiv neej cov hlwb. Qhov tsim nyog rau hauv qhov no tshwm sim, tsuas yog, thaum lub sij hawm IVF, thaum thawj zaug yuav tsoo . Yuav kom tsis txhob xaiv oocytes, siv vitrified. Nco ntsoov tias oocytes yog cov neeg tsis tuaj yeem ovum nyob ncaj qha rau hauv cov zes qe menyuam.
Lub ntsiab zoo ntawm cov txheej txheem no yog qhov tseeb tias, hauv kev sib piv nrog cryopreservation, vitrification pub rau lub sij hawm ntev dua los tiv thaiv cov kev sib deev hlwb tsis txo lawv cov viability. Tsis tas li ntawd, txoj kev siv no ua rau cov xiam oob khab ua rau lub sij hawm khov qis, thiab tib lub sij hawm, cov kev pabcuam ntawm cov khoom siv thwm tshwjxeeb tsis txo.
Raws li tau hais los saum toj no, cov txheej txheem no siv feem ntau hauv cov txheej txheem rau hauv kev siv tshuaj yaj yeeb (vitro fertilization). Raws li txoj cai, lawv tuaj yeem rau nws thaum:
- impossibility ntawm tau spermatozoa ncaj qha rau hnub ntawm puncture thaum IVF;
- impossibility npaj hom cev xeeb tub rau yav tom ntej (yog tias muaj kev tsis haum ntawm qhov kev ua me nyuam los yog tsis muaj kev xav ntawm tus poj niam nws tus kheej, piv txwv li);
- ua ntej cov kws khomob hauv cov pojniam uas mob khees xaws (kom tsis pub muaj cov kws khomob hauv kev sib deev hauv hlwb);
- Qhov xav tau los tswj lawv tus kheej oocytes tom qab puncture.
Cov txiaj ntsig ntawm hom no yog dab tsi?
Thaum vitrification ntawm oocytes immature oocytes, oocytes, txoj kev ntawm khov yog nqa tawm nyob rau hauv ib lub sij hawm luv luv. Vim yog qhov nuance no, cov dej khov nab kuab, uas ua rau pob txha oocyte puas, tsuas tsis muaj sij hawm tsim. Yog li, tom qab thawing, cov kws kho mob tuaj yeem tau txais txog 98% ntawm cov kab mob tau poj niam yoojyim. Nws yog tsim nyog sau cia tias nrog cryopreservation, tsis tshaj li 60% ciaj sia.
Kev ua ntawm kev ua tau zoo ntawm txoj kev no, cov kev tshawb fawb tau pom tias cov tshuaj oocytes tsis muaj phom sij nrog cov xwm txheej tib yam li cov hlwb uas nyob hauv cov poj niam lub cev. Thaum nqa tawm cryopreservation, muaj xws li tshwm sim xws li densification ntawm oocyte daim nyias nyias. Qhov tseeb no tseem cuam tshuam qhov kev nkag mus ntawm cov phev rau hauv lub qe.
Dab tsi yog cov yam ntxwv ntawm vitrification?
Tsocai uantej ua ntej qhov pib ntawm tus pojniam lub cev, kev kho tshwj xeeb hormonal yog ua kom tsim kho lub zes qe menyuam. Tam sim ntawd ua ntej tso tawm ntawm ovum los ntawm lub follicle, ultrasound raug muab tso rau. Qhov no ua rau nws muaj peev xwm txhawm rau txhawm rau seb puas muaj cov qe loj hlob zoo rau vitrification. Yog tias lawv tsis pom - cov txheej txheem ntawm kev ua kom rov qab yog rov ua dua.
Cov txheej txheem yog ua nyob rau hauv cov tshuaj loog. Nyob rau tib lub sij hawm, kev nkag tau yog tawm ntawm transvaginally, uas siv ib rab koob tshwj xeeb. Cov txheej txheem tswj los ntawm khoom siv ultrasound. Tus sau cov oocytes yog khov thiab muab khaws cia rau ntev.
Yog li, nws muaj peev xwm hais tias cryopreservation thiab vitrification yog ob txoj kev zoo sib xws, nqa tawm tib txoj kev, tab sis coj lawv tus kheej kev coj ua. Tsis ntev los no, IVF nrog vitrification tau nce siv, nrog rau lub hom phiaj ntawm tsim kom tau ib lub txhab nyiaj ntawm oocytes hauv chaw kho mob me nyuam.