Qhov kev sib txuas lus marginal placenta txhais li cas?
Ib qho kev nthuav qhia ntawm thaj chaw ntawm lub tsho me nyuam, feem ntau kuaj tau ntawm 20 lub lim tiam, nws yog ib qho txaus ntshai ntawm txoj kev tsis zoo no. Nrog nws, ib nrab ntawm qhov hnyuv hauv plab hnyuv ntawm sab hauv. Kev mob npau qaij ntau dua yog qhov teeb meem thaum lub tsev menyuam nkag mus hauv lub tsev menyuam.
Txoj kev kho mob nrog lub cheeb tsam ntawm thaj chaw twg yeej ua tau zoo li cas?
Yog tias zoo li no muaj nyob rau hauv cov poj niam, cov kws kho mob feem ntau tsis yaum kom ua txhua yam nkaus, preferring tos kom txog thaum lub tsev menyuam loj tuaj thiab lub tsho me nyuam nrog rau nws rises dua - nws migrates. Txoj haujlwm tseem ceeb ntawm tus kws kho mob hauv qhov teeb meem no yog los tiv thaiv kom tsis txhob muaj teeb meem. Tus poj niam raug nquahu kom tshem tawm kev qoj ib ce thiab tawm tsam kev sib deev.
Dab tsi?
Tej zaum qhov teebmeem no feem ntau muaj nyob rau ntawm hom kabmob tshau plab yog los ntshav. Nyob rau hauv rooj plaub no, lub neej ntawm fetus yog endangered, vim hais tias ntawm tau tsim spontaneous rho menyuam.
Tsis tas li xwb, qhov yuav tshwm sim ntawm qhov chaw ntawm lub tsho me nyuam kuj yuav raug cuam tshuam rau qhov fetus qhov chaw nyob hauv lub uterine kab noj hniav. Muaj oblique, gluteal thiab txawm transverse arrangement. Qhov no txhais tau hais tias nrog ib qho kev nthuav qhia marginal ntawm lub tsho me nyuam, cov txheej txheem tsis tseem ceeb yuav muaj nws tus yam ntxwv.
Raws li kev pom zoo ntawm tus me nyuam mos hauv plab ntawm leej niam, kev yug menyuam tsis tuaj yeem tshwm sim nrog kev sib txuas lus ntawm lub tsho me nyuam. Qhov kev xaiv tsuas yog ib qho kev phais plab, uas muaj kev tshem tawm ntawm lub tsho me nyuam.