Iingoma eziqhelekileyo zeNtsholongwane yeNhliziyo yoMntwana kwi-Trimester yokuqala
Inqanaba eliqhelekileyo lentliziyo yenqwelwana ngokuqhelekileyo lihluka phakathi kwendawo ephakathi kwe-120 no-160 ngeengcaciso ngomzuzu (bpm) ngexesha lokukhulelwa, kodwa ekuqaleni kwekota yokuqala, izinga lentliziyo lomntwana linokuphuculwa. Ucwaningo olwenziwa ngo-1996 lusekele oku kulandelayo njengezinga eliqhelekileyo lentliziyo ekukhulelweni kwexesha lokuqala lokukhulelwa , kunye nobukhulu obuhlukeneyo bubungakanani besibonda se- fetal :
- Umbungu we-2 mm: i-75 beats ngomzuzu
- Ubomi obu-5 mm: i-100 beats ngomzuzu
- Umbungu we-10 mm: i-120 beats ngomzuzu
- I-embryo engu-15 mm: i-130 beats ngomzuzu
Nangona ukukhulelwa okukhuselekileyo kunokuba ngamaxesha athile amaqondo angaphantsi kweemimiselo, isantya senhliziyo esincinci ekukhulelweni kokuqala kudibene nomngcipheko ophezulu wokukhulelwa kwesisu . Oogqirha badla ngokuncoma ukulandelela ama-ultrasounds kubasetyhini abancinci abanentsholongwane yentliziyo ukwenzela ukuba baqinisekise ukuba ngaba ukhulelwe. Ngelishwa, akukho nto inokuyenza ukuchaphazela isiphumo; ukutshatyalaliswa okwexeshana okwenzeka emva kokubona isantya senhliziyo esicothayo ngamanye amaxesha kuthetha ukuba umntwana unesifo sengqondo esingaqhelekanga ukususela ekuqaleni.
Ukukhawuleza kunokuba isantya senhliziyo esingaqhelekanga ingabangela ingozi yokukhulelwa kwesisu okanye ezinye iziphumo zokukhulelwa ezingathandekiyo.
Akukho bubungqina bokuba isantya senhliziyo yesisu sichaza ubungqina besini.
Imithombo
Ukuphuhliswa kweeNtsholongwane zeeVilonomy - I-Embryonic Heart Rate. Mark Hill. I-UNSW Embryology. http://embryology.med.unsw.edu.au/notes/heart8.htm
I-Coulam, i-CB, i-S.Britten, ne-DMSoenksen, "Ukuqala (iintsuku ezingama-34-56 ukusuka kwinyanga yokugqibela). Ukuzaliswa kwabantu 1996. 11 (8): 1771-1774.
U-Doubilet PM kunye no-CB Benson. "Inqanaba lentliziyo ye-embryonic ekuqaleni kwe-trimester yokuqala: yeyiphi izinga eliqhelekileyo?" I-Journal ye-ultrasound kwi-Medicine uStefos,
UTheodor I, uDimitrios E. Lolis, uAlexander J. Sotiriadis, uGeorge V. Ziakas. "Inqanaba lentliziyo ye-embryonic ekukhulelweni kokuqala." Umbhalo we-Clinical Ultrasound 1998. Vol. 26, Issue 1, 33 - 36.
Doubilet, uPeter M., uCarol B. Benson noJeanne S. Chow. "IsiPhumo seZithintelo kunye neRipid Embryonic Heart Rates kwi-First Trimester yokuqala." I-American Journal ye-Roentgenology 2000. 175: 67-69