Abstract
In recent years, IVF programs have been increasingly carried out in which cryopreserved embryos are used. Along with these programs, IVF procedures are carried out, in which "fresh" embryos are transferred. The problem of choice naturally arises before reproductive specialists: which program to give preference to - FRESH and FET?
 Specialists of the Institute of Reproductive Medicine (Almaty, RK) conducted a number of observations. After careful sampling of these data, no differences in CNB% were found in Fresh and FET (Frozen Embryo Transfer) programs. The incidence of complications during pregnancy and childbirth with FET protocols was significantly higher in comparison with Fresh, which requires further study. When analyzing the "Take home baby" indicator, there were no statistically significant differences between the FET and Fresh protocols.
Highlights
Sha T, Yin X, Cheng W, Massey I. - « Pregnancy-related complications and perinatal outcomes resulting from transfer of cryopreserved versus fresh embryos in vitro fertilization: a metaanalysis.»
Zhu D, Zhang J, Cao S, Zhang J. - «Vitrified-warmed blastocyst transfer cycles yield higher pregnancy and implantation rates compared with fresh blastocyst transfer cycles-time for a new embryo transfer strategy» Fertility and Sterility.- 2011;95:16911695
Түйін сөздер: Fresh бағдарламасы, FET (Frozen Embryo Transfer) бағдарламасы, «Үйге нәресте алып барыңыз» индикаторы
Summary
РЕЗУЛЬТАТИВНОСТЬ ПРОГРАММ И ТЕЧЕНИЕ БЕРЕМЕННОСТИ ПРИ ПЕРЕНОСЕ РАЗМОРОЖЕННЫХ И СВЕЖИХ ЭМБРИОНОВ. После тщательной выборки данных различий в ЧНБ % в программах Fresh и FET (Frozen Embryo Transfer) не было выявлено. При анализе показателя «Take home baby», между протоколами FET и Fresh статистически достоверных различий обнаружено не было. Что разницы в ЧНБ при переносе эмбрионов в свежих и размороженных циклах нет. [3] Однако использование криоконсервированных эмбрионов статистически значимо чаще ассоциируется с развитием гипертензивных расстройств при беременности, таких как гестационная артериальная гипертензия и преэклампсия. Оценить разницу частоты наступления беременности (ЧНБ) в программах ВРТ (вспомогательные репродуктивные технологии) при переносе эмбрионов в «свежем» цикле (группа А) и при переносе размороженных эмбрионов FET (группа Б) и проанализировать качество ее течения в обеих референтных группах
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