I-cardiotocography yindlela yokurekhoda intliziyo yesisu , kubaluleke kakhulu ukuhlolwa ngokupheleleyo kwimeko yesimo senhliziyo kunye nesimo esiqhelekileyo somntwana. Indlela ye-CTG ayiyona nto inobungozi, ayinayo impembelelo embi kumntwana. Le ndlela isetyenziselwa kwiiveki ezingama-26 zokukhulelwa, xa umntwana ekhula ekulinganiseni ubukhulu ukulungisa umva wakhe kweso sigxina senhliziyo phambi kwodonga lwesisu. I-Cardiotocography ibaluleke kakhulu ngexesha lokubeleka, xa kungekhona nje kuphela imfuneko yokulinganisa izinga lentliziyo, kodwa nokufumanisa ukunyaniseka kweziphene ze-uterine. Kwinqaku lethu, siya kuqwalasela into ekufuneka i-CTG ye-fetus ibe yesiqhelo?
Iimpawu ze-CTG yomntwana
Ubungakanani benkqubo inxulumene nemizuzu engama-40-60, ngelixesha apho lona wesifazane ehlanganiswe kwisisu esiswini, apho i-monitor ilinika ulwazi malunga nentliziyo yesisu kunye nezokwehlukana kwe-uterine. Iziphumo ze-CTG ye-fetus zingachazwa ngolu hlobo lulandelayo:
- Isalathisi sesiseko sesiseko sithetha ngesantya senhliziyo yentlobo yesisu - isantya sesigqithiso sisiseko kwi-110-160 beats ngomzuzu, kwaye xa uhamba okanye ulwa, u-130-190 ukubetha ngomzuzu;
- ukuhluka kweentliziyo zengqungquthela kubonisa ukuphambuka kwentlawulo yenhliziyo - kwinqanaba elivumelekileyo lokuphambuka akufanele lidlule kwi-5-25 beats ngomzuzu;
- ukukhwabanisa okanye ukukhwabanisa kwi-CTG kubonakaliswa njengokunciphisa intliziyo, ebonakala kwigrafu ngohlobo lweentsilelo - ngokuqhelekileyo zimele zingabi zicace kwaye zifutshane;
- Ukukhawuleza kwe-Fetal okanye ukukhawuleza kukunyuka kwinqanaba lentliziyo, okuyi-cardiogram erekhodiweyo ngeendlela zamazinyo aphezulu - ngokuqhelekileyo kufuneka ukuba ubuncinane bangu-2 ukukhawuleza kwimizuzu eyi-10;
- umsebenzi we-uterus (i-tokogram) akumele ide ngaphezu kwe-15% yesilinganiso senhliziyo yesiseko, isibonakaliso akufanele sidlule imizuzwana engama-30.
Umntwana we-CTG - Umqondiso wesimo se-fetal
Ukuphonononga i-cardiotocogram, isistim se-10 sisetyenzisiweyo esichaza imigaqo echazwe ngasentla (isalath rhythm frequency, izinga lokutshintsha kwentliziyo ye-fetal (inani lamagagasi kunye nokuphakama kwawo), ukukhutshwa, ukukhawuleza kunye nokunyakaza komntwana). Ngoko, makhe siqwalasele ukuba yeyiphi inani leengongoma ezi zilandelayo:
- Umgangatho owanelisayo uhambelana ne-CTG ye-fetus engama-9-12;
- I-hypoxia yomntwana wesigaba esiphakathi ifunyenwe ngamanqaku angama-6-8. Kwiimeko ezinjalo, ukuqwalaselwa okuqhubekayo nokuphindaphinda kwe-CTG kuyanconywa;
- Uxinzelelo olunzima lwe-fetal lubonakala kwiindawo ezi-5 okanye ngaphantsi. I-CTG ye-fetus ebuthakathaka iyabonwa nge-oksijeni yokulamba yindlala kwaye idinga ukunikezelwa ngokukhawuleza.
Ukuqulunqwa kwesimo se-fetal status
I-cardiotocographs zanamhlanje zikwazi ukuzibala ngokuzenzekelayo ukubaluleka kwebhanwidth memory. Makhe sicinge ngendlela yokutolika ngayo iziphumo:
- imeko eqhelekileyo yomntwana ifana ne-PSP ukusuka kwi-0.7 ukuya kwi-1.0;
- Ubonakaliso bokuqala belizwe elichaphazelekayo lomntwana lithi ama-indices e-PSP ayi-1.01-2.0, kwiimeko ezinjalo
Ngexesha leveki kubalulekile ukuphinda i-CTG; - imeko enzima ye-fetus ifunyanwe nePSP isikolo se-2.01-3.0;
- imeko ebalulekileyo ye-fetus iqinisekiswa yi-PSP engaphezu kwama-3.0. Le meko idinga ukulaliswa kwezibhedlele ngokukhawuleza esibhedlele kunye nesisombululo somba wokunikezelwa kweenkonzo.
Ngaloo ndlela, sihlolisise iimpawu ze-cardiotocography kunye neendlela zokuchazwa kweziphumo. Ukubethwa kwentliziyo kwisisu ngokunciphisa ukutshintsha kwe-110-160 beats ngomzuzu kubonisa ukuba umntwana ulungile.