Tambo yakatokura

mwedzi All vapfumbamwe pamuviri amai uye mwana akwirwe kuburikidza achiine rukuvhute tambo yaidzika kubva abdominal rusvingo mudumbu (nzvimbo ino, kuva pashure kuzvarwa vanga, yainzi guvhu) uye dzakabatana placenta. The achiine rukuvhute tambo iri rwonzi ari muchimiro rwakawanda zononoka dzine mumwe maviri achiine rukuvhute tsinga arteries. Arterial ropa okisijeni uye zvinovaka muviri kuti mudumbu kubva placenta runoyerera kuburikidza achiine rukuvhute tsinga. By tsinga kubva placenta anodzokera mudumbu ropa, muchifumiswa pamwe, carbon dioxide uye metabolic zvigadzirwa. Possible yakatokura achiine rukuvhute tambo chiine ngozi kune fetus upenyu nokuda okisijeni kushaikwa (fetus hypoxia). Mushure rokutema achiine rukuvhute tambo pakuzvarwa, anotanga aparadzane amai. Early nokuveza ari achiine rukuvhute tambo (pakutanga mumasekonzi shoma pashure wakurukura) inotungamirira kukurasikirwa arterial ropa uye kushayiwa simbi uye Chizenga mune neonatal ropa.

Inochengetedza nhumbi achiine rukuvhute tambo (chero zvinokuvadza uye zvokuimba kukuvadza) yakapoteredza mondo wavo chaiye akaita zvinhu zvinosanganisira mucopolysaccharides uye akashevedza Wharton kuti mondo. Achiine rukuvhute tambo kwete chete rinobvumira kupanana arterial uye venous ropa pakati muviri raamai uye fetus, asiwo kuti fambisa vake Líquido fluid panguva iyo, nokuda kwezvikonzero zvakasiyana-siyana, vanogona kuitika tambo yakatokura. Kukudziridza nemwana, asi achiine rukuvhute tambo pakuzvarwa achangoberekwa anoenderana kazhinji kuwedzera (paavhareji 55 cm) uye aine dhayamita nehafu kusvika masendimita maviri.

Kune abnormalities vazhinji achiine rukuvhute tambo, hakusi nguva zvichiita kuti pave uchibatsirwa pamuviri Ultrasound. Vakawanda vavo havana pachena kusvikira pakusununguka. Chete kune monochorionic mapatya (mapatya, dzichidya nevakawanda placenta), rusvingo batana uye placenta previa (pamwe nengozi yacho yokuzviparadzanisa) kunogona kuwanikwa kufanoronga yambiro. Yakadaro anomaly akafanana cord yakatokura marudzi ose zvinokonzera njodzi, ayo kuburikidza siyana yematambudziko inozivikanwa uye zvinoda vamwe tsika kudzivisa akabatanidza hwevanhu vanorwara uye vanofa.

tambo yakareba nokuti vasingazivikanwi zvikonzero 5% nyaya kungava masendimita asingasviki 35, uye muna 5% anopfuura masendimita 80. Short achiine rukuvhute tambo pokugumira uye kutyora intrauterine fetus kufamba nokusika ngozi vakurumidze yokuzviparadzanisa of placenta. Yakarebesa achiine rukuvhute tambo yakatokura pave mudumbu, kuti ndiye tambo yakatokura kunogona kuitika nokuda paumbwe nokusunungura mapfundo vechokwadi. Uchimutarira pakati kureba achiine rukuvhute tambo prenatally (i.e., risati pakukurukura) hazvibviri. Asi nodes vechokwadi panguva nhumbu inogona kuumbwa pamusoro achiine rukuvhute tambo uye venhema nzvimbo. On the nodes vechokwadi zvinomiririra anenge 1% kubva pamuviri rurefu inorwara Muzviitiko monochorionic pemapatya. nodes venhema (Bends iri nhumbi achiine rukuvhute tambo) zvakawanda zvakajairika, asi haana ngozi azvarwa.

True tambo gungano kunoitika nokuda kufamba ari mudumbu uye chinowanzoitika munguva tanga pamuviri kana paine hwakanaka yakawanda Líquido mvura (Líquido mvura), saka kufamba azvarwa zvikuru. Ngozi inotungamirwa nodes vechokwadi kubatsirwa zvakananga makore amai, nokureba achiine rukuvhute tambo uye uwandu Líquido amniótico. Kakawanda mupfungwa uye kuwedzera padanho adrenaline muropa rubatsiro kuwedzera mufambo ari mudumbu.

Possible tambo yakatokura diagnoztsiruyut fetus hypoxia panguva Cardiotocographic tsvakurudzo. Zvadaro echographic kudzidza kuitwa, umo pamberi anonzi zvishwe inoumbwa ne achiine rukuvhute tambo iri pamutsipa nharaunda. Uyewo kutakura ruvara Doppler kudzidza uye kudzidza kufamba kweropa kuburikidza nhumbi. Kana uchifungidzira kuti fetus hypoxia, zvidzidzo izvi inodzokororwa yose mukadzi pamuviri kanoverengeka pamusana kufamba fetus nodes havagoni dzinovhiringidza chete, asiwo kuti kukanganisika. Entwining achiine rukuvhute tambo pakuzvarwa kunokonzera fetus bradycardia. Yekuzvidzivirira kubvumira kuramba richiona nezvezvabuda fetus mwoyo, rinoshandiswawo kuwedzera kweiyi basa, uye nyaya Kuvhiya zvashata rinoitwa pasi kukurumidza dzokubudisa of mudumbu - Caesarean chikamu.