I-chorion biopsy: uhlobo kanye nezici zalolu cwaningo

I-chorion biopsy yisifundo esingathola ukuthi i-pathologies engamaqenjini kanye nefa esikuqaleni kokukhulelwa. Ngalo, amasampuli we-chorion athathwe, okwenza ama-placenta abe ngemva kwalokho.

Kumele uqaphele ukuthi akukho ukuxhaphazwa kwe-fetus eyenziwa, ngakho-ke i-biopsy ye-chorionic ibhekwa njengephephile ngokwanele. Emva kwenkambiso, ingozi yokuthuthukisa ukukhipha isisu i-2% kuphela. Lolu cwaningo lunikeza imiphumela enembile, kodwa lubuhlungu futhi lungabangela ukushaywa kanzima kowesifazane okhulelwe, ngakho-ke kuqhutshwa ngokweqile ngokwezinkomba. Ngesikhathi esifanayo, isikhathi esincane sichitha, futhi imiphumela isilungele ezinsukwini ezingu-3-4.

Kunezinhlobo ezimbili eziyinhloko zalokhu ukuphathwa:

• I-chorionic villus biopsy yamaVaginal - isenziwa phakathi kwamasonto ayisishiyagalolunye nesishiyagalolunye wokubeletha. Ngaphansi kokulawulwa kwe-ultrasound ngokusebenzisa ubulili, isitsha esikhethekile sifakwa esibelethweni, esabekwa phakathi kwe-endometrium ne-chorion (yi-membrane yezithelo). Ekuhlinzekeni okunikezwayo i-villi ku-chorion banqunywa noma banamathele. Kamuva bayaphansi kokucwaninga kwelabhutrikhi. Le nqubo ayibuhlungu ngokuphelele.

• I-biopsy ye-abdominal ye-villi chorion-yenziwa phakathi kwamasonto ayishumi nesishiyagalombili wokukhulelwa. Ngesinye isikhathi lokhu kusetshenziselwa ukusetshenziselwa ukusetshenziselwa ukusetshenziselwa ukusetshenziselwa ukutholakala ngokushesha, ikakhulukazi uma kwenzeka kuncane amniotic fluid, ngakho-ke amniopuncture ayinakwenzeka. Ukufeza ukuxhaphazwa, isiguli silele emuva. Udokotela usebenzisa umshini we-ultrasound ukucacisa isimo se-placenta, izindonga ze-uterine, futhi uthole ikusasa le-site ephephile yokuphumula. Ukuze uthathe izinto ezidingekayo ngenye inaliti, ukukhishwa kwezindonga zamathumbu nezibeletho kwenziwa, enye - isampula yamaseli kuthathwa ukuze kuqhutshekwe uphenyo. Kubalulekile ukuphawula ukuthi indawo yokuqhafaza iphathwa kahle nge-anesthetic yangakini enezindawo ezinhle ze-analgesic.

I-chorionic biopsy ivame ukubekwa abesifazane besifazane abakhulelwe, abanengozi enkulu yokuba nengane enezinkinga zofuzo, nakuba noma yimuphi owesifazane angakwazi ukuhlolwa uma efuna, ngesikhathi sokubeletha kwesisu.

Yiziphi izifo ezingasetshenziswa nale nqubo yokuxilonga? Lokhu ikakhulukazi i- Down's syndrome, i- Trisomy 13 ne-18 ye-chromosome, i- Turner's syndrome, i- cystic fibrosis ne- earle cell anemia, kanye ne-Klinefelter's syndrome. Ngaphezu kwalokho, i-biopsy ye-chorion ingabona cishe amanye ama-chromosomal angu-100 kanye nokungajwayelekile kwezakhi zofuzo.

Kubalulekile ukuqaphela inzuzo ebalulekile yalesi sifo - ingasetshenziswa kakhulu ngaphambi kuka-amniocentesis (kakade ngesonto le-10 lokukhulelwa). Ngaphezu kwalokho, imiphumela ingatholakala ngokusheshisa - ezimweni eziningi ngesonto lokuqala ngemuva kokuhlola.

Kumele ngithi i-chorionic biopsy nayo ingabonisa ukubonakala komzimba, lapho amanye amangqamuzana enesethi evamile ye-chromosomal, kanti amanye akhiwe ngamaphutha athile.

Ngemuva kokuhlolwa, ukubona amabala kanye nokuhlukunyezwa emathunjini kungase kuvele. Futhi, i- amniotic fluid (ngesamba esincane) ingakhishwa ku-vagin. Uma kukhona izimpawu ezingavamile ezivela, kufanele uthintane nodokotela okhulelwe.