Pro: Fresh versus frozen embryo transfer. Is frozen embryo transfer the future?
Abstract Embryo cryopreservation has been an integral part of ART for close to 40 years and vitrification has boosted overall ART efficacy and safety. Recently, there has been a vivid scientific discussion on whether elective cryopreservation of all embryos (freeze-all) should be pursued for most patients, with a fresh embryo transfer ...
Christos Venetis
exaly +4 more sources
To delay or not to delay a frozen embryo transfer after a failed fresh embryo transfer attempt? [PDF]
To evaluate if increasing the interval between a failed fresh embryo transfer and a subsequent frozen embryo transfer (FET) cycle has any effect on clinical pregnancy rates (CPRs).Retrospective cohort study.University-based tertiary referral center.Women who underwent at least one FET after ovarian stimulation for in vitro fertilization (IVF) and a ...
Nikolaos Polyzos +2 more
exaly +4 more sources
Day-3 vs. Day-5 fresh embryo transfer. [PDF]
Embryo transfer on day-5 has been associated with higher success rates, therefore our IVF clinics started to extend embryo culture until blastocyst stage. This study aimed to compare the success rates of day-3 vs. day-5 embryo transfers.We had 266 patients included, all having undergone ICSI, with 221 patients having undergone day-3 embryo transfers ...
Garbhini PG +6 more
europepmc +3 more sources
Transfer of fresh or frozen embryos: a randomised controlled trial [PDF]
Abstract STUDY QUESTION Is IVF with frozen-thawed blastocyst transfer (freeze-all strategy) more effective than IVF with fresh and frozen-thawed blastocyst transfer (conventional strategy)? SUMMARY ANSWER The freeze-all strategy was ...
Wong, K. M. +7 more
openaire +2 more sources
Fresh versus frozen embryo transfers for assisted reproduction [PDF]
In general, in vitro fertilisation (IVF) or intracytoplasmic sperm injection (ICSI) implies a single fresh and one or more frozen-thawed embryo transfers. Alternatively, the 'freeze-all' strategy implies transfer of frozen-thawed embryos only, with no fresh embryo transfers.
Kai Mee, Wong +4 more
openaire +3 more sources
Luteal phase support in fresh and frozen embryo transfers
ContextLuteal phase support (LPS) has become an essential component of IVF protocols following both fresh and frozen embryo transfers, yet there is still controversy with regards to the optimal protocol of LPS to enhance treatment outcome.Search strategyA search via PubMed for all the selected topics was limited to publications from the past 10 years ...
Shirley Greenbaum +11 more
openaire +3 more sources
Fresh versus frozen embryo transfers in assisted reproduction
In vitro fertilisation (IVF) or intracytoplasmic sperm injection (ICSI) treatments conventionally consist of a fresh embryo transfer, possibly followed by one or more cryopreserved embryo transfers in subsequent cycles. An alternative option is to freeze all suitable embryos and transfer cryopreserved embryos in subsequent cycles only, which is known ...
Tjitske, Zaat +5 more
openaire +3 more sources
Transfer of Fresh Versus Frozen Embryos in Ovulatory Women
(Abstracted from N Engl J Med 2018;378:126–136) A previous randomized controlled trial involving women with polycystic ovary syndrome (PCOS) compared fresh-embryo transfer with elective freezing of all embryos followed by frozen-embryo transfer.
Yuhua, Shi +29 more
openaire +2 more sources
Fresh vs. frozen: pregnancy outcomes and treatment efficacy between fresh embryo transfer vs. untested freeze-all cycles [PDF]
Zoran J Pavlovic +2 more
exaly +2 more sources
Combined fresh and frozen embryo transfer resulting in a twin delivery [PDF]
We report the delivery of non-identical twins resulting from the combined transfer of one fresh and one frozen embryo to a 31 year old patient. To our knowledge, this is the first reported case where both a fresh and a frozen embryo implanted in the same cycle led to non-identical twins.
N, Abusheikha +4 more
openaire +2 more sources

