• The experience of holding the cycles of assisted reproductive technology with defrost, a biopsy, genetic study and refreezing of embryos in patients with multiple unsuccessful implantations.

The experience of holding the cycles of assisted reproductive technology with defrost, a biopsy, genetic study and refreezing of embryos in patients with multiple unsuccessful implantations.

HEALTH OF WOMAN.2016.7(113):166–170; doi 10.15574/HW.2016.113.166 

The experience of holding the cycles of assisted reproductive technology with defrost, a biopsy, genetic study and refreezing of embryos in patients with multiple unsuccessful implantations.

Masliy Y. V., Sudoma I. O., Mazur P. S., Mykytenko D. A., Osadchuk S. V.

Clinic of reproductive medicine «NADIYA», Kyiv

National Medical Academy of Postgraduate Education P. L. Shupyk, Kiev

A.A. Bogomolets National Medical University, Kiev

The objective: to study the possibility of using frozen blastocysts for biopsy and genetic testing and performance measurement transfer euploeded 5–7-day-old embryos after thawing, biopsies, refreezing and thawing in patients with unsuccessful implantation.

Patients and methods. The object of the study was the group of patients with repeated failure of implantation (4) in programs of auxiliary reproductive technologies (ART), subject to transfer to the uterus in total (i.e. in all the programs) for at least 6 good quality embryos based on morphological characteristics). All women had sufficient ovarian reserve. The patient was treated for infertility within the ART programs of the clinic of reproductive medicine "Nadiya" in the period from 2006 to 2016. The sample included couples who were not carriers of chromosomal rearrangements, without anomalies of the uterus (congenital and acquired: a doubling of the uterus, one-horned uterus, intrauterine membrane, synechia, submucous myoma of the uterus). All women had a positive ovarian response to controlled stimulation with gonadotropins (at least 7 oocytes) and a sufficient number of cryopreserved embryos. The first group (G1) included 64 women who trophectodermal a biopsy was performed on fresh blastocysts (in a loop controlled ovarian hyperstimulation). The second group (G2) were included 31 women who underwent thawing previously cryopreserved blastocysts trophectodermal re-biopsy and vitrification of blastocysts.

Results. It was found that the performance of transfers euploid embryos that were vitrified, bioptrone and revitriphted, a little lower than those that were bioptrone fresh and vitrified only once. At the same time computationa genetic diagnosis previously vitrified blastocysts using comparative genome hybridization in patients with recurrent failed implantation allows to obtain a reasonable pregnancy rate (58%), implantation rate (33.3 %) and the birth of living children (45.1 %).

Conclusion. Reprising biopropane embryos does not cause significant destructive impact and allows you to achieve pregnancy and birth of the alive child.

Key words: in vitro fertilization, reusable unsuccessful implantation, a method of comparative genome hybridization, refreezing.


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