I-CTG noma i-cardiotocography yindlela yokucwaninga ezithintekayo, okuqoshiwe okuhambisanayo kwe-fetal heartbeat kanye nokuphazamiseka kwesibeletho emaminithini angu-10-15. Isibonakaliso senhloso yesimo se-fetal ku-CTG siyishintsha izinga lokushaya kwenhliziyo ngesikhathi sokuphulwa. Manje, ikakhulukazi engaqondile (yangaphandle) i-cardiotocography isetshenziselwa: izinzwa ezimbili zifakwa ngokuqondile esiswini sowesifazane okhulelwe - eyodwa endaweni yokwelapha kwesibeletho esakhiwe (okuvame ukwakhiwa kwesigungu esiseduze ne-ovary esifanele), okwesibili - endaweni yokumisa okungcono kakhulu kwe-fetal (kuxhomeke kohlobo, isikhundla uhlobo lwesisu olukhona).
Lapho kuhlolwa i-CTG, lezi zikhombisi ezilandelayo zicatshangelwa:
- isigqi sesisekelo sezinhliziyo zenhliziyo;
- Ukuhluka kwesigqi senhliziyo yesisu;
- Ukusheshisa-okuhambisana nezinqamulelo ze-uterine noma ukunyakaza kwe-fetus kwanda ngesilinganiso senhliziyo ngama-beats angu-15 noma ngaphezulu ngomzuzu, ubude obungaphansi kwamasekhondi angu-15;
- ukunciphisa - ukwehlisa izinga lokushaya kwenhliziyo ngesikhathi sokunyakaza noma ukulwa.
I-cardiotocography ye-fetus - okulotshiwe
Ukwenza lula ukuchazwa kwemiphumela nokunciphisa indima yesici somuntu kulolu cwaningo, ekusebenzeni kokubeletha, isigaba seFischer sasetshenziselwa ukucacisa intombazane yesisu. Le ndlela ihilela ukuhlolwa kwe-ballistic ngayinye yalezi zibonakaliso ezinjalo:
- Amaphoyinti angu-0 - izimpawu eziveziwe zokuhlupheka kwesisu;
- Amaphuzu angu-1 - izimpawu zokuqala zokuphulwa;
- Amaphoyinti angu-2 - ukusebenza okuvamile.
Mayelana nepharamitha ngayinye ngokulandelana
Isigqoko sesisekelo sezinhliziyo zenhliziyo yesibindi sibhaliwe phakathi kokulwa, futhi sibonisa isimo se-fetal ekuphumuleni. Ibanga elivamile lale nkhomba liyi-110-170 ukushaya / iminithi, okuhambisana nokulinganisa amaphuzu amabili. Umkhawulo onobubanzi obujwayelekile, kodwa usuvele ukhombise ukuphulwa okuncane - 100-109 bpm, noma 171-180 bpm, ne-1 iphuzu, ngokulandelana. Futhi isimo esisongelayo somntwana wesisu yisisindo se-basal samaphesenti angaphansi kuka-100 / amaminithi. noma izinsimbi ezingaphezu kuka-180 / iminithi.
Ukuhluka kwesilinganiso senhliziyo ye-fetal kuhlolwe ngokurekhoda ukuphakama nokuvama kokukhipha, ngokulinganisa ukuphakama kwawo kanye nemvamisa (okusho ukuthi, umehluko enqenqenqenqenqenqenqenqenqenqenqenqenqeneni yenhliziyo ngokuhamba kwayo noma ukulwa ngokuhambisana nesigqi esisekelwe phansi kanye nemvamisa yalezi zinguquko). Ukujwayelekile kwe-fetus kukhishwa ngama-amplitude we-10-25 beats ngomzuzu, kanye nemvamisa yezigcawu ezingaphezu kweziyisithupha ngomzuzu, okuhambisana namaphoyinti angu-2 ngokusho kwe-Fischer. Kuyamukeleka, kepha kuyamangalisa ama-amplitude oscillation ka-5-9 bpm, noma ngaphezulu kuka-25 bpm, kumvamisa weziqephu ezingu-3-6 ngomzuzu owodwa, okulinganiselwa ku-1 iphuzu.
Izinkomba ezisongelayo ziyashintsha ekuphakameni okungaphansi kuka-5 bpm, ngevama yalezi zinguquko ezingaphansi kwama-episodes angu-3 ngomzuzu, okulinganiselwa kumaphoyinti angu-0, futhi kubonisa ukucindezeleka kwe-fetus.
Ngokuphathelene nokuvama kokutholakala kokusheshisa , kulinganiswa isikhathi esingaphansi kwamaminithi angu-30, isimiso se-fetus ukuvela kwezinguquko ezingaphezu kuka-5 esikhathini esinikeziwe, okulinganiselwa kumaphoyinti amabili. Ukutholakala kokusheshisa ngezikhathi ezithile, ngokuvama kokungu-1 kuya kwezingu-4 kumaminithi angu-30 kubhekwa njengokwemukelekile, kodwa kunengqondo okungahambi kahle, futhi kulinganiselwa ku-1 iphuzu. Ukungabi khona kwezivinini ngalesi sikhathi kubonisa ukwephulwa okukhulu kwe-fetus.
Ngokuphathelene nalokho okuphambene nalokho - ukunciphisa - okujwayelekile kuvunyelwe emaminithini okuqala oku-5-10 okurekhoda noma ukungabi khona kwenani eliphelele - okujwayelekile kanye namaphoyinti amabili. Ukuba khona kokuhluka okuphawulekayo lapho kwenzeke khona ukuzamazama noma ukuvela kwazo emva kwemizuzu engu-15-20 yokuqoshwa kwe-CTG kusho ukuwohloka kwe-fetus futhi kulinganiselwa ku-1 iphuzu. Kuphindaphindiwe phakathi nenkathi yokuqopha i-CTG ukukhathazeka noma ukuhlukahluka okuphawulekayo kubo - isibonakaliso sokucindezeleka kwesisu futhi sibonisa isidingo sokungenelela kwezokwelapha ngesikhathi sokubeletha.
Uma ufingqa izibalo zekhombisi ngayinye, sithola amaphuzu amanani we-CTG we-fetus - okungenani okungu-10, ubuncane bezingu-0-2. Izinkomba zisho:
- lapho kuhlolwa i-CTG ye-fetus, amaphuzu angu-10-8 kubhekwa njengokwehlukile kwesimiso nesiphakamiso esihle sokuphumela komsebenzi;
- I-CTG ye-fetus yamaphoyinti angu-7 noma ngaphansi ibonisa ukucindezeleka okulula kwe-fetus, okudinga ukunakekelwa okuqhubekayo kukadokotela kokubeletha kokubili ngesikhathi sokubeletha nangesikhathi sokuhamba kwesikhathi;
- I-CTG ye-fetus ingaphansi kwamaphoyinti angu-4 - ibonisa isimo somntwana futhi sibonisa ukulethwa ngokushesha ngesigaba sokudla noma isisindo esisebenzayo sezinambuzane ngokuvuselela abasebenzi.