Ngenxa yokusilela kwe-oksijini kumntwana, i-oksijini yindlala yenzeke, enegama-hypoxia. I-hypoalxia ye-Fetal ingenzeka ngenxa yokukhulelwa okubanzi, ukugqithisa, ukusongela isisu, isifo sikashukela esikhatyhini esithweleyo, ukufumanisa kwezifo eziphazamisayo, izifo kunye nezifo ezithathelwanayo ezixhatshazwe kwi-trimester yokuqala, ukutshaya kunye nezinye iintlobo zokulutha kweziyobisi kumfazi okhulelwe.
I-hypoxia yokubeletha (ngaphambi kokubeleka) yenzeke ngexesha lokukhulelwa, kunye ne-asphyxia eyenzeka ngexesha lomsebenzi libizwa ngokuba yi-fetal intrapartum hypoxia. Ukuba i-etiology ye-hypoxia ye-fetal ixhomekeka ikakhulukazi kumama, i-hypoxia yobusana ngexesha lokubanjwa kungabangelwa kwimisebenzi engaqeqeshiweyo yabasebenzi bezonyango ekulawuleni abasebenzi. I-Hypoxia, eyaqhubeka de ukuphela kwexesha lokuqala lokuzalwa, libizwa ngokuba yi-hypoxia ye-perinatal.
I-Hypoxia yobusana kunye ne-asphyxia yintsana
Ubunzima beempembelelo ze-fetal hypoxia kunye ne- asphyxia esanda kuzalwa ihlolwe kwizinga le-Apgar:
- Kwi-asphyxia yobunzima obunokulinganisela kwiminithi yokuqala yobomi, imeko yomntwana iqikelelwa kumanqaku amane ukuya ezintandathu,
kwaye ngomzuzu wesihlanu - ukususela kwi-8 ukuya kweyishumi. - Kwi-asphyxia enzima - ukusuka kwi-zero ukuya kwiingongoma ezintathu kwiminithi yokuqala kunye neenkalo ezisixhenxe ukuya kumzuzu wesihlanu.
Ukuphakamisa amanqaku kule nqanaba, encinci i-asphyxia yayisemntwaneni. Amanqaku aphantsi abonisa ukuphakama okuphezulu kokuvelisa izifo zengqondo emntwaneni: ukunyanzeliswa kwengqondo, i-pathologies yokuthetha kwengqondo, ukulibaziseka ekukhuleni kwengqondo okanye kwenyama. Iimpembelelo ze-fetal hypoxia ngexesha lokubeletha ngamanye amaxesha ziba nzima kakhulu. Isizathu salokhu kukuba ukusilela kwe-oksijini kuthwala ingqondo yomntwana kakhulu. Ukungabi nciphisa kwe-oksijeni ngexesha lokukhulelwa ngexesha lokubeleka kunokukhula kube yifomu eqaqambileyo. Kodwa ukuba umntwana waqala ukuphefumula, unako onke amathuba okuphepha i-pathologies yokukhula nophuhliso.