Chorionic villus sampling: qhov xwm thiab cov yam ntxwv ntawm cov daim ntawv ntsuam xyuas

Chorionic villus zauv - ib txoj kev kawm uas tso cai rau mus ntes congenital thiab raws roj ntsha cov kab mob nyob rau hauv thaum ntxov cev xeeb tub. Thaum nws yog coj chorion qauv, uas tom qab tas lub tsho me nyuam.

Nws yuav tsum tau muab sau tseg tias txhua yam manipulation ntawm cov txiv hmab txiv ntoo ntawm nws tus kheej yog tsis nqa tawm, li ntawd chorionic villus zauv yog hais tias yuav muaj kev ruaj ntseg txaus. Tom qab ntawm txoj kev, txoj kev pheej hmoo ntawm txawj rho menyuam yog tsuas 2%. Txoj kev tshawb no muab tseeb tau, tab sis nws yog mob heev thiab muaj peev xwm ua rau muaj mob cia li malaise cev xeeb tub, yog li yog nqa tawm nruj me ntsis nyob rau hauv zaj lus tim khawv. Nyob rau hauv cov ntaub ntawv no, nws siv ib tug me ntsis ntawm lub sij hawm, thiab soj ntsuam cov npaj txhij nyob rau hauv 3-4 hnub.

Muaj 2 lub ntsiab hom ntawm tus manipulation:

• paum chorionic villi me - yog nqa tawm ntawm 8 thiab 12 lub lim piam hnub. Nyob rau hauv ultrasound taw qhia los ntawm qhov chaw mos los tshwj xeeb cuab tam tso rau hauv lub tsev me nyuam, uas yog muab tso rau nruab nrab ntawm cov endometrium thiab cov chorion (nws yog ib tug plhaub ntawm lub txiv hmab txiv ntoo). Nrog rau qhov no manipulation chorion villi yog txiav nyob rau hauv los yog absorbed. Ntxiv mus, lawv yog cov yuav raug kuaj soj ntsuam. Qhov no txoj kev yog kiag li tsis mob.

• Abdominal chorionic villus zauv - ua ntawm 9 thiab 11 lub lim piam uas cev xeeb tub. Tej zaum qhov no manipulation yuav siv tau nyob rau hauv lub thib ob thiab thib peb peb lub hlis, raws li nws tso cai rau koj kom sai tau tau, tshwj xeeb tshaj yog me me amniotic kua, yog li amniopunktsiya tsis yooj yim sua. Mus nqa tawm lub manipulation ntawm tus neeg mob cov lus dag rau nws rov qab. Tus kws kho mob siv ultrasound tshuab txiav txim rau txoj hauj lwm ntawm lub tsho me nyuam, uterine phab ntsa thiab pom ib tug muaj kev ruaj ntseg qhov chaw hno lub neej yav tom ntej. Yuav kom sau tus tsim nyog ib tug koob cov ntaub ntawv uas yog nqa tej lub plab thiab uterine phab ntsa, cov lwm yam - cell qauv yog muab rau kawm ntxiv. Nws yuav tsum tau muab sau tseg tias tej tas kho nrog rau hauv zos ua kom loog uas muaj analgesic zog.

Chorionic villus sampling yog feem ntau tua tau cev xeeb tub uas muaj ib qho kev raug mob muaj ib tug me nyuam nrog caj mob, txawm hais tias tej poj niam, yog koj nyiam yuav coj lub daim ntawv ntsuam xyuas thaum lub sij hawm hnub.

Yuav ua li cas cov kab mob yuav tsum kuaj tau los ntawm no diagnostic txheej txheem? Qhov no yog feem ntau Down syndrome, trisomy ntawm chromosome 13 thiab 18, Turner lub syndrome, cystic fibrosis thiab sickle-cell anemia, thiab Klinefelter lub syndrome. Tsis tas li ntawd, chorionic villus zauv yuav ntes ib co 100 chromosomal thiab kev tshuaj ntsuam genetic txawv txav.

Nws yog ib nqi sau cia qhov tseem ceeb kom zoo dua ntawm no mob - nws yuav siv tau npaum li cas lawm dua amniocentesis (twb nyob rau hauv 10 lub lim piam ntawm hnub). Nyob rau hauv tas li ntawd, tau muaj peev xwm yuav tau sai txaus - nyob rau hauv feem ntau tus neeg mob nyob rau hauv thawj lub lim tiam tom qab qhov kev xeem.

Kuv yuav tsum hais tias chorionic villus zauv kuj qhia placental mosaicism, qhov twg ib txhia hlwb muaj ib tug ib txwm chromosomal complement, thaum lwm tus neeg raug tsim nrog tej yam anomalies.

Tom qab qhov kev xeem, yuav tshwm sim spotting thiab ntswj mob plab. Kuj yuav tsum raug rho tawm ntawm koj qhov chaw mos amniotic kua (nyob rau hauv me me). Thaum koj pom tej yam txawv txawv tsos mob yuav tsum saib ib tug kws kho mob, uas yog cev xeeb tub.