Kubata kwomwoyo kwomwana chimwe chezviratidzo zvokutanga zvehupenyu hutsva hunokura uye hunobuda mukati memukadzi ane pamuviri. Zviratidzo zvekutanga zvezvipikiso zvekuumba mwoyo zvinowanikwa kare muvhiki yechishanu panguva yekuongorora kwe ultrasound, panguva ino inoita sehombodo yakadzika uye inongoratidzika semoyo wemunhu kusvika yepfumbamwe.
Kupindirana kwemucheche pamasvondo gumi nemaviri
Pachine vhiki gumi nemaviri ekuberekwa, fetal heart rate inoshanduka uye inobva pazera remakore. Saka kubva pamasvondo matanhatu kusvika ku8 mwoyo wehutori ndewe 110-130 kurohwa paminiti, kubva pamasvondo 9 kusvikira ku11 kubva pa180 kusvika ku2014 kurova paminiti. Kubva pavhiki 12 yekutakura, kushaya mwoyo kunowanikwa mumakumbo makumi mapfumbamwe nemakumi matatu nemakumi mana neminomwe paminiti, uye izvi zvinogara zvakasara kusvika pakuberekwa pachako. Kuumbwa kwenhamba yemwoyo kunobatanidzwa nekutsvaga kwehutano hwehutongi hwehutongi hwehurumende. Kuteerera ku fetal heartbeat pamusvondo wegumi nemaviri ekuzvitakura kunogona chete ne ultrasound. Apo kuongorora kwekutanga kwe ultrasound kunoitwa mavhiki 9-13, mwoyo une makamuri mana (maviri atria uye maviri ventricles).
Zvinokwanisika here kunzwa chirwere chemwoyo che fetal?
Sezvatareva kare, kushaya mwoyo pamasvondo gumi nemaviri kunogona kungonzwika chete panguva ye ultrasound. Kutanga pavhiki 20, fetal heartbeat inogona kunzwika nekugadziriswa uchishandisa stethoscope yekuberekwa. Izvo stethoscope inowanikwa pamucheche, uye kune rumwe rutivi nzeve yechiremba inomanikidzirwa, asi nguva uye chimiro chema fetal heart rate inotsungirirwa. Kubvira pamasvondo makumi matatu, cardiotocography (CTG) inogona kushandiswa - imwe nzira inokosha yekugadzirisa chiyero chemwoyo che fetus. CTG inowanzoshandiswa munguva yebasa, apo zvakakosha kucherechedza kwete chete mararamiro e fetal heartbeats, asiwo kufambisa nekuputika kwechibereko.
Chii chinonzi fetal moyo inotaura?
Kurongedza kwe fetus ndeimwe yezviratidzo zvekuvandudzwa kwemuviri wemukomana, kusabatwa kwemwoyo pavhiki yechisere yekutora kunoratidzira pamuviri usina kusimbiswa. Fetal heart rate inowedzera inogona kuratidza fetal hypoxia uye nzira dzekudzikinura, uye bradycardia yeasingasviki 100 kurova paminiti chiratidzo chekoshi chinotaura nezve hypoxia yakadzika.
Nokudaro, kushaya mwoyo kwema fetus ndiyo chikonzero chinokosha chekusimudzirwa kwayo. Pazviitiko zvakasiyana-siyana zvepamuviri, kune nzira dzekuyera kutengesa kwemwoyo: kusvika masvondo gumi nemasere e ultrasound, uye mushure memasvondo gumi nemasere unogona kushandisa stethoscope yekuberekwa uye mishonga yekuteerera kushaya mwoyo kwemucheche.