Chorion yog ib qho khoom nruab nrog cev, ntawm qhov chaw mos los yog tus me nyuam qhov chaw tau tsim. Hauv cov ntsiab lus yooj yooj yim, qhov no yog ib qho ntawm cov qib theem ua tiav rau hauv plab zuj zus. Txij li thaum lub tsho me nyuam ploj zuj zu, feem ntau ntawm lub lim tiam 18th, tag nrho cov hauj lwm mus txog rau qhov no yog ua los ntawm chorion.
Tus thawj ultrasound thaum cev xeeb tub pom zoo kom ua li 9-12 lub lis piam thaum tso npe rau hauv LC, thiab feem ntau nyob rau hauv tus saib xyuas ntau tshaj 50% ntawm cov poj niam cev xeeb tub raug kuaj pom cov lus tshaj tawm ntawm cov chorion. Qhov no txhais li cas?
Qhov kev kuaj no tsuas qhia tau hais tias muaj qes dua ntawm chorion, uas yog, fertilized qe , tsoo lub kab noj hniav ntawm lub tsev menyuam, txuas mus rau hauv qab (qhov feem ntau cov kev mob physiological thiab dej siab), tab sis ho nqis mus rau sab ntawm lub tsev menyuam thiab ncauj tsev menyuam. Thaum tau nkag mus rau hauv daim nyias nyias membrane, ovum thiab uterine epithelium tsim ib chorion.
Muaj ob peb txoj kev xaiv rau kev nthuav qhia ntawm chorion:
- marginal attachment of chorion yog ib hom kev nthuav qhia uas cov chorion tuaj yeem viav voos thaj tsam ntawm lub tsev menyuam yaus thiab lub ncauj tsev menyuam (qhov feem ntau muaj txiaj ntsig sib txawv);
- tsis tiav kev nthuav qhia ntawm chorion - qhov txawv ntawm qhov kev nthuav qhia, nyob rau hauv qhov ntawm ib qho ntawm chorion overlaps tus nkag mus rau lub tsev me nyuam roj ntsha, tiam sis tsis ntau tshaj 2/3 ntawm nws txoj kab uas hla;
- ua tiav kev nthuav tawm ntawm chorion - chorion ua rau lub qhov ncauj qhib qhov ncauj qhuav.
Qhov chaw tso ntshav zoo ib txwm muaj nyob rau hauv rooj plaub thaum lub chorion nyob hauv qab ntawm lub tsev menyuam.
Cov kev pheej hmoo ntawm ntau hom kev nthuav qhia yog dab tsi?
Txhua yam kev nthuav qhia yog txaus ntshai vim hais tias chorion germinates nrog cov hlab ntsha uas ua rau lub tsho me nyuam. Nrog rau kev sib txuas ntawm cov chorion, muaj kev ntxhov siab tuaj yeem tshwm sim, qhov kev pheej hmoo ntawm kev cuam tshuam thiab tsis muaj menyuam hauv plab, thiab tsis muaj peev xwm ntawm kev yug menyuam ntawm lub cev tsis muaj peev xwm ntawm kev ntshav thiab kev tuag ntawm tus me nyuam hauv plab.
Nyob rau hauv kev nthuav qhia marginal, qhov kev pheej hmoo tsawg heev, vim muaj lub tswv yim ntawm kev tsiv mus rau ntawm lub tsho me nyuam, thiab li ntawm 18 lub lis piam hauv 90% ntawm cov mob plab me nyuam nce hauv phab ntsa ntawm lub tsev menyuam thiab nyob hauv ib qho chaw qub. Nrog rau kev nthuav qhia tsis tiav, kev ntsuam xyuas kuj yog ib qho tseem ceeb heev - qhov kev xaiv no feem ntau hloov mus rau cov kev nthuav qhia marginal los yog lub tsho me nyuam yuav siv
Ntug kev nthuav qhia ntawm chorion - kev kho mob
Kev kho mob ntawm txoj kev qhia marginal feem ntau yog los saib xyuas tus kws kho mob cov lus pom zoo, xws li: kev sib deev so, kev qoj ib ce tsawg, lub cev muaj zog thiab kev noj zaub mov. Kev nthuav qhia tsis tiav feem ntau yuav tsum tau soj ntsuam hauv tsev kho mob thiab siv cov tshuaj. Feem ntau cov poj niam cev xeeb tub hauv qhov teeb meem no tau xaiv Dufaston raws li cov lus qhia.