The effects of fresh embryo transfers and elective frozen/thawed embryo transfers on pregancy outcomes in poor ovarian responders as defined by the Bologna criteria

  title={The effects of fresh embryo transfers and elective frozen/thawed embryo transfers on pregancy outcomes in poor ovarian responders as defined by the Bologna criteria},
  author={Serdar Çelik and Niyazi Emre Turgut and Erbil Yağmur and Kubra Boynukalin and Dilek Cengiz Çelik and Necati Findikli and Sevim Purisa and Mustafa Bahçeci},
  journal={Turkish Journal of Obstetrics and Gynecology},
  pages={132 - 138}
Objective: To compare the effects of fresh embryo transfers (ET) and elective frozen/thawed embryo transfers (eFET) on implantation, clinical pregnancy, and live birth rates in poor ovarian responders, as defined by the Bologna criteria. Materials and Methods: All electronic databases of embryo transfers between January 2011 and January 2014 were retrospectively reviewed. Two hundred fifty-nine of all the fresh ET and 96 of all eFET were included into the study. An antagonist protocol with… 

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The clinical outcomes of fresh versus frozen embryos transfer in women ≥40 years with poor ovarian response
FET after the freeze-all strategy had no beneficial impact on the clinical outcomes of women ≥40 years with POR and the clinical pregnancy and miscarriage rates, and neonatal characteristics were similar between the 2 groups.
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Success of IVF treatment can be improved in poor responder by implementing “freeze all” policy, and the proportional comparison among the two groups was found to be statistically significant, showing a higher CPR in the FET group.
Accumulation of embryos over 3 natural modified IVF (ICSI) cycles followed by transfer to improve the outcome of poor responders
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Does freeze-all policy affect IVF outcomes in poor responders ? Short Title : Freeze all policy in POR
In this study, the freeze-all strategy had no impact on IVF outcomes among poor responders according to the Bologna criteria and a multi-centric study including a large number of patients was performed.
A universal freeze all strategy: why it is not warranted
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    Current opinion in obstetrics & gynecology
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EFET seems to have limited potential to improve effectiveness of assisted reproductive technology, which could be limited to hyper-responders, and switching to a universal eFET strategy does not seem justified.


Fresh versus frozen embryo transfer: backing clinical decisions with scientific and clinical evidence.
The literature demonstrates reduced endometrial receptivity in controlled ovarian stimulation cycles and supports the clinical observations that FET reduces the risk of ovarian hyperstimulation syndrome and improves outcomes for both the mother and baby.
[Pregnancy outcomes of day-2 versus day-3 embryo transfer in poor responders].
For the poor responders under 35 years of age, day-3 embryo transfer may afford an even higher rate of clinical pregnancy and shortening the time of embryo culture has no obvious benefit for the pregnancy outcome.
The clinical analysis of poor ovarian response in in-vitro-fertilization embryo-transfer among Chinese couples
The data show that the prevalence of poor ovarian response in Chinese is 11.9%, and previous ovarian surgery is associated with poor ovarian responses, especially the decline in clinical pregnancy rate of women aged >40 years became accelerated.
Natural cycle is superior to hormone replacement therapy cycle for vitrificated-preserved frozen-thawed embryo transfer
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