منابع مشابه
Embryo selection in IVF.
To optimize success rates of IVF, selection of the most viable embryo(s) for transfer has always been essential, as embryos that are cryopreserved are thought to have a reduced chance of implanting after thawing. Recent developments challenge this concept. Evidence is accumulating that all embryos can now be cryopreserved and transferred in subsequent cycles without impairing pregnancy rates or...
متن کاملDEBATES Embryology Embryo selection in IVF
To optimize success rates of IVF, selection of the most viable embryo(s) for transfer has always been essential, as embryos that are cryopreserved are thought to have a reduced chance of implanting after thawing. Recent developments challenge this concept. Evidence is accumulating that all embryos can now be cryopreserved and transferred in subsequent cycles without impairing pregnancy rates or...
متن کاملIVF Treatment and Single Embryo Transfer
IVF has been described as one the medical breakthroughs of the 20 th Century. Over 5 million children have been born using the methods first developed by Robert Edwards who died last year. However there is continuing concern about some of the outcomes of IVF treatment (Kamphuis et al., 2014), particularly the high number of multiple births, a problem which became apparent only a few years after...
متن کاملEmbryo transfer duration and IVF success
Difficult ET is associated with impaired implantation 3 probably due to endometrial damage , presence of blood in the catheter 5, and triggering of uterine contractions due to cervical manipulation. There is hardly any literature on the effect of time employed for performing ET on the success rates of IVF cycles. Logically, the time employed for performing ET may be an important prognostic fact...
متن کاملEmbryo disposal practices in IVF clinics in the United States.
BACKGROUND The moral status of the human embryo is particularly controversial in the United States, where one debate has centered on embryos created in excess at in vitro fertilization (IVF) clinics. Little has been known about the disposal of these embryos. METHODS We mailed anonymous, self-administered questionnaires to directors of 341 American IVF clinics. RESULTS 217 of 341 clinics (64...
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ژورنال
عنوان ژورنال: Human Reproduction
سال: 2011
ISSN: 0268-1161,1460-2350
DOI: 10.1093/humrep/der050