I-Doppler yindlela yokuxilongwa kwangaphambi kokubeletha, okuyiyo uhlobo lwe-ultrasound. I-Dopplerometry ngexesha lokukhulelwa idlalwa ngokukhawuleza nge-ultrasound isebenzisa isinamathiselo esifanele kumshini we-ultrasound.
I-Dopplerometry isekelwe kuqikelelo lwesantya sesandi, esitshintsha xa sibonakaliswa ukusuka kwegazi. I-Dopplerometry ikuvumela ukuba ugqibe isantya kunye nesimo sokuhamba kwegazi kwiinqanawa zentambo yesisu kunye nesibeleko somfazi, kunye ne-aorta kunye ne-middle-cerebral artery of the fetus. Ngokusekelwe kwiziphumo zolu cwaningo, iimpawu zokungaqhelekanga kumsebenzi weplacenta kunye nokuhamba kwegazi kusekwe, ngenxa yokuba umntwana akanako ukufumana izinto ngokuphuhliso oluqhelekileyo. I-Dopplerometry yenza kube lula ukuxilonga ukungakwazi ukufumana i-fetoplacental okanye i- hypoxia ye-fetal ngexesha elifanelekileyo.
Ingakanani i-dopplerometry eyenziwa ngexesha lokukhulelwa?
Inkqubo ye-doplerometry ingenziwa maxesha amaninzi ngokukhulelwa. Akukho buhlungu kwaye ukhuselekile kumama kunye nexesha elizayo umntwana. Ngaba i-dopplerometry ekukhulelweni kunye ne-ultrasound eqhelekileyo, umahluko wodwa kukuba ngo-dopplerometry, ukuqikelelwa kwegazi kuqikelelwa, ugqirha ubona kweso siqalo ngomfanekiso wombala.
I-Dopplerometry yenziwa emva kweeyure ezingama-23 ukuya ku-24. Okokuqala, i-dopplerometry imiselwe abafazi abakhulelweyo abasengozini. Okokuqala, okokuqala, abafazi abane-anemia, uxinzelelo lwegazi, i-gestosis, izifo zesimo senhliziyo kunye neentso, ubukho be-Rh-antibodies egazini, isifo sikashukela . Iqela lomngcipheko libandakanya abafazi abakhulelweyo abanokuvuthwa ngaphambi kwexesha le-placenta, abaninzi-kunye ne-malodontics, ukugula kwe-chromosomal ye-fetus kunye nezinye izifo.
Iiparameters ze-doplerometry ekukhulelweni
Ukuchazwa kwe-dopplerometry ekukhutheni kuncitshiswa kuqikelelo lwee-indices ezikhethekileyo ezibonisa umlinganiselo wokuphazamiseka kwegazi. Ekubeni ukuhlolwa okwaneleyo kokuhamba kwegazi kunzima kunzima, izibonakaliso ezinxulumene nazo zisetyenziswa kwi-dopplerometry. Ezi ziquka:
- IR - inkcazo yokuchasana;
- I-P i-index ye-pulsation;
- Umlinganiselo we-SDO - systolic-diastolic.
Amaxabiso amaninzi abonisa ukunganyaniseki kokunyuka kwegazi, ngelixa iindleko eziphantsi zibonisa ukwehla kokungabikho kokuphuma kwegazi. Ukuba i-IR ingaphezu kwe-0.773, kwaye i-SDR ingaphezu kwama-4.4, oko kubonisa iingxaki ezinokwenzeka.
Isiqhelo se-dopplerometry ukungabikho kweziphazamiso kwisifundo. Kodwa ukuba kukho ukuphambuka okuthile, umfazi akufanele aphelelwe yithemba. Imimiselo ye-dopplerometry ekukhulelweni iya kunceda ukulungisa inkqubo yokukhulelwa, khetha ukonyango oluyimfuneko ukukhusela ukukhulelwa komntwana.
Emva kokuvavanya iikholeji, ezi zilandelayo zidibanisi zokuphazamiseka kwimijikelezo:
1 idide:
- A - i-flowoplacental blood flow igcinwe, ukuhamba kwegazi kuphazamiseka;
- I-B - uteroplacental blood flow iphazamiseka, i-placental-placental stored;
I-2 degree : ukwephulwa kweziqhamo kunye neendawo eziphambili,
Iidanga ezi-3 : ukungaqhelekanga okuphambili kwigazi lokutshatyalaliswa kwegazi ngexesha lokulondoloza okanye ukuphazamisa ukuhamba kwegazi e-utero-placental.
Kuphi ukwenza i-dopplerometry ekukhulelweni, umfazi uya kuxelela ugqirha okhokelela ekukhuleleni kwakhe, mhlawumbi lolu pho nonongo luqhutyelwa kwisiza sonyango esifanayo apho ibhinqa libonwa khona, okanye umfazi okhulelweyo uthunyelwa kwisikhungo esifanelekileyo sokuzibandakanya esinezixhobo eziyimfuneko.