Cov placenta yog ib qho tseem ceeb heev uas pib tsim los ntawm tib lub hlwb raws li tus me nyuam nws tus kheej. Txog 11-16 lub lis piam, nws yog hu ua chorion, lub villous membrane ntawm lub embryo: nws villi nkag mus rau lub thickness ntawm lub tsev menyuam phab ntsa, oxygen thiab khoom noj khoom haus nkag mus rau tus me nyuam los ntawm lawv, thiab nws cov khoom pov tseg thiab carbon dioxide raug tshem tawm. Tom qab lub sijhawm no, cov placenta puv puv yog tsim, uas kuj muaj ntau villi, tab sis, ntxiv rau cov khoom noj khoom haus, tseem tsim cov tshuaj hormones (tshwj xeeb tshaj yog, progesterone) uas pab tswj kev xeeb tub (ua ntej kev tsim cov placenta, cov haujlwm no ua tiav. los ntawm corpus luteum nyob rau hauv zes qe menyuam).
Cov placenta tsis muaj kev cog lus ua haujlwm, tab sis txuas nrog rau lub tsev menyuam - cov leeg muaj zog thiab loj, uas txawm tias ua ntej pib yug menyuam ib ntus "tsheb ciav hlau" rau lub sijhawm luv luv, uas tau qhia hauv kev txo qis. nws tus kheej ntu rau lub sijhawm luv luv. Feem ntau cov placenta adjusts rau cov nokev txav mus los, thiab tsis muaj dab tsi tshwm sim rau nws, tab sis qee zaum muaj qhov xwm txheej tshwm sim thaum qhov loj dua lossis me dua ntawm nws exfoliates ntawm phab ntsa ntawm lub tsev menyuam. Tom qab ntawd tus fetus raug kev txom nyem, vim nws cov khoom noj khoom haus cuam tshuam. Tsis tas li ntawd, tus mob no tuaj yeem ua rau tus niam thiab tus menyuam hauv plab tuag, yog li cov tsos mob ntawm placental abruption yuav tsum tau coj mus rau cov poj niam cev xeeb tub thiab lawv tsev neeg.
Kev tso quav tso quav yog dab tsi?
Nquag, cov placenta yuav tsum tau ze rau sab saum toj, uas yog, hauv qab ntawm lub tsev menyuam, feem ntau nyob ntawm nws phab ntsa tom qab, tab sis qee zaum nws nyob ze rau ntawm qhov tawm - lub tsev menyuam kwj dej. Qhov no hu ua placenta previa. Nws tuaj yeem yog tag nrho lossis hauv nruab nrab, thaum tus menyuam qhov chaw nyob ntawm ob sab ntawm kev tawm ntawm lub tsev menyuam, thaiv kev tawm ntawm nws. Nws kuj tseem yuav yog qhov placenta tsuas yog qis dua li qhov yuav tsum tau ua. Xws li placentation yog ib qho tseem ceeb predisposing rau detachment.
Yog li, ib txwm nyob lossis placenta previa tuaj yeem tshem tawm. Nws nyob li cas yog nyob ntawm cov tsos mob ntawm placental abruption.
Tsis tas li, kev tshwm sim yuav nyob ntawm cov yam xws li:
- detachment txuas ntxiv lossis nws tuaj yeem nres;
- qhov twg nws cais ntawm phab ntsa ntawm lub tsev menyuam - hauv nruab nrab lossis ntawm ntug;
- thaum lub sijhawm cev xeeb tub lossis txawm tias yug menyuam tau muaj qhov xwm txheej no tshwm sim: placental abruption thaum ntxov, yog tias ib feem me me ntawm nws tau txav deb ntawm phab ntsa uterine, nws muaj qhov mob me me thiab muaj txiaj ntsig zoo. prognosis, txij li tom qab tus me nyuam qhov chaw tseem yuav loj hlob thiab loj hlob, thiab nws yog zoo li hais tias qhov tsis xws luag yuav kaw thiab "outgrow".
Cov tsos mob ntawm placental abruption yog dab tsi?
Peb lub cim yog suav tias yog qhov yooj yim:
1) Qhov chaw mos los ntshav ntawm qhov sib txawv.
2) Mob plab, nws sab qis.
3) Cov cim qhia ntawm kev txom nyem hauv plab: hloov hauv lub plawv dhia, nce lossis txo qis hauv nws lub cev muaj zog.
Cov tsos mob ntawm placental abruption, nyob ntawm qhov chaw kho mob, muaj raws li hauv qab no:
I. Yog tias placenta previa abruption tshwm sim ntawm ntug, tsuas yog los ntshav, yuav luag tsis muaj mob. Yog hais tias ib cheeb tsam me me exfoliated, fetus tsis raug kev txom nyem.
II. Yog hais tias lub placenta, nyob qhov twg nws nyob, exfoliates nyob rau hauv lub hauv paus cheeb tsam, thiab cov los ntshav nres (uas yog, lub detachment yog tsis-progressive), ces tej zaum yuav tsis muaj tsos mob. Ib tug poj niam paub txog qhov xwm txheej no ntawm ultrasound lossis tom qab ntawd, tom qab qhov tseeb, cov ntshav liab me ntsis tawm.
III. Yog hais tias detachment ntawm ib txwm nyob placenta nyob rau hauv lub marginal ntu exfoliates, ob ntawm peb cov tsos mob yuav tshwm sim: los ntshav thiab mob. Yog hais tias los ntshav tsis nres, ces tus me nyuam mos pib raug kev txom nyem, contractions thiab yug ntxov ntxov (los yog nchuav menyuam, yog hais tias nws yog placental abruption nyob rau hauv thawj peb lub hlis twg) tej zaum yuav pib.
IV. Thaum lub detachment ntawm lub hauv paus ntawm lub placenta tshwm sim, cov ntshav accumulates qab lub placenta. Qhov no hu ua retroplacental hematoma. Nws nyob ntawm nws tus kheej, txawm tias cov ntshav tau nresmuaj peev xwm exfoliate lub placenta ntxiv. Yog li ntawd, ib qho chaw tseem ceeb, thiab txawm tias tag nrho cov placenta, tuaj yeem exfoliate. Ntshav nrog xws li ib feem detachment tsis yog ib txwm tso tawm rau sab nraud. Tom qab ntawd cov tsos mob ntawm placental abruption yog raws li nram no: qaug zog, pallor, ib tug poj niam lub plawv palpitations, nws hnov mob nyob rau hauv lub plab mog, uterine nro, tus me nyuam thawj zaug tsiv ntau zaus, ces nws yuav calm down tag nrho. Nrog ntxiv impregnation ntawm phab ntsa ntawm lub tsev menyuam nrog cov ntshav los ntawm hematoma, qhov mob hnyav zuj zus, lub tsev menyuam tsis so. Yog cov ntshav pom ib txoj kev tawm, nws ntws tawm ntawm qhov chaw mos.
V. Cov placenta tuaj yeem exfoliate thaum yug menyuam. Tom qab ntawd los ntshav kuj tshwm sim, cov hlab ntsha tuaj yeem tso tawm. Lub tsev menyuam tsis so zoo sab nraud ntawm kev cog lus, yog tias tus menyuam hauv plab raug kev txom nyem, ces nws cov quav tsaus - meconium - raug tso tawm. Cov paib no yuav tsum tau sau tseg los ntawm obstetrician-gynecologists
Yuav ua li cas yog tias koj xav tias koj muaj cov placenta detached?
Nrog cov ntshav tawm thaum cev xeeb tub, txawm tias nws yog xim av "daub", koj yuav tsum coj txoj haujlwm kab rov tav thiab qhia rau koj tus kws kho mob gynecologist uas saib xyuas koj. Yog tias cov ntshav liab liab tawm, koj yuav tsum tau pw tam sim ntawd, tsis txhob sawv mus rau hauv chav dej, nco ntsoov hu lub tsheb thauj neeg mob thiab xyuas kom koj tus kheej muaj kev thaj yeeb nyab xeeb tshaj plaws. Yog hais tias tus me nyuam (raws li ultrasound) tsim ib txwm, koj tsis muaj mob hnyav gestosis lossis mob ntev, muaj qhov tshwm sim ntau uas koj yuav tsum tsis txhob los ntshav nrog lub txaj nruj tshaj plaws, thiab tom qab ntawd kev pab yuav tuaj txog hauv lub sijhawm. Kev txwv tsis pub los ntshav thaum cev xeeb tub tsis tau txhais hais tias koj tuaj yeem sawv, ob peb hnub koj tseem yuav tau mus rau chav dej thaum pw saum lub nkoj.
