METHOD OF CONTROLLING DEGREE OF ZYGOSITY OF PREGNANCY IN EXTRACORPOREAL FERTILISATION AND EMBRYO TRANSFER PROGRAMS

摘要

FIELD: medicine.;SUBSTANCE: invention relates to medicine, particularly to obstetrics and gynaecology, and can be used for embryo transfer (ET) after extracorporeal fertilisation (EF). For this purpose, method includes forming 2 cohorts of oocytes, zygotes and embryos, originating from right and left ovary. In case of successful cultivation and development of at least 2 prime quality embryos (PQE) to obtain singleton pregnancy PQE is transferred from one cohort. To produce dizygotic pregnancy, method includes transfer of at least 2 PQE from different cohorts.;EFFECT: method enables to control onset of singleton or multi-zygotic (dizygotic) pregnancies in ET and EF programs.;1 cl, 1 tbl, 7 ex