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50%-60% of the known causes of recurrent pregnancy loss(RPL) are associated with embryonic aneuploidy, such that preimplantation genetic screening (PGS) on embryos acquired by assisted reproductive treatment should improve the rate of pregnancy and live birth in those patients. In dispute though the clinical application of PGS has been, a series of studies show that the new generation of PGS(PGS 2.0), based on blastocyst biopsy followed by whole genome analysis, has significantly improved the clinical outcome of IVF treatment. At present, we are still in need of evidence for the use of PGS 2.0 in RPL patients, who may benefit from this emerging technology considering the prevalence of genetic abnormalities and the number of transferable embryos in this population.
An earlier single center RCT conducted by our IVF center displayed higher implantation rate, clinical pregnancy rate and ongoing pregnancy rate calculated by per embryo transfer(ET) cycle in IVF/ICSI+PGS group compared with IVF/ICSI group.
This multi-center prospective randomized clinical trial is to provide more data to determine whether the clinical outcomes are significantly improved per treatment cycle such that provide evidence for the application of PGS in RPL patients. Besides, risk factors of PGS outcome are to be analyzed from multi-center data to build a model for prediction of the possible outcomes of PGS and direction of the clinical choice.
Recurrent Pregnancy Loss
IVF/ICSI, PGS 2.0, Morphology standard
Not yet recruiting
ShangHai Ji Ai Genetics & IVF Institute
Published on BioPortfolio: 2017-07-12T09:53:21-0400
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Daily supplement of magnesium after biochemical diagnosis of pregnancy in females pregnant after ICSI and through out 1st trimester
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In this clinical cohort study, the investigators observe the efficacy of low molecular weight heparin in the treatment of thrombophilia with recurrent pregnancy loss with a prospective ran...
Recurrent pregnancy loss occurs in about one percent of fertile couples. Without proper evidence for an effect different treatments have been used when no etiological factor has been detected. The pre...
Even though the immune factor is not yet established as a cause of recurrent pregnancy loss (RPL), tons of other studies have shown that a significant proportion of immune abnormalities exist in RPL.
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A medical-surgical specialty concerned with the morphology, physiology, biochemistry, and pathology of reproduction in man and other animals, and on the biological, medical, and veterinary problems of fertility and lactation. It includes ovulation induction, diagnosis of infertility and recurrent pregnancy loss, and assisted reproductive technologies such as embryo transfer, in vitro fertilization, and intrafallopian transfer of zygotes. (From Infertility and Reproductive Medicine Clinics of North America, Foreword 1990; Journal of Reproduction and Fertility, Notice to Contributors, Jan 1979)
Trophoblastic hyperplasia associated with normal gestation, or molar pregnancy. It is characterized by the swelling of the CHORIONIC VILLI and elevated human CHORIONIC GONADOTROPIN. Hydatidiform moles or molar pregnancy may be categorized as complete or partial based on their gross morphology, histopathology, and karyotype.
Proteins produced by organs of the mother or the PLACENTA during PREGNANCY. These proteins may be pregnancy-specific (present only during pregnancy) or pregnancy-associated (present during pregnancy or under other conditions such as hormone therapy or certain malignancies.)
Early pregnancy loss during the EMBRYO, MAMMALIAN stage of development. In the human, this period comprises the second through eighth week after fertilization.
The state of PREGNANCY in women with DIABETES MELLITUS. This does not include either symptomatic diabetes or GLUCOSE INTOLERANCE induced by pregnancy (DIABETES, GESTATIONAL) which resolves at the end of pregnancy.
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