Nature (almost) always prevails - challenging the status quo of artificial frozen embryo transfers
نویسندگان
چکیده
Frozen embryo transfers (FETs) have become increasingly popular in assisted reproductive technologies (ART) due to advancements cryopreservation techniques and the implementation of "freeze-all" strategy. The choice between artificial (AC) or natural (NC) cycles for FET preparation has been a subject debate, considering factors such as endometrial receptivity, flexibility scheduling, pregnancy outcomes. While AC protocols offer convenience flexibility, studies suggested potential drawbacks, including higher miscarriage rates greater risk hypertensive disorders during pregnancy. In contrast, NC involve frequently demanding monitoring both proliferation follicular growth, which may lead increased clinic visits scheduling issues. To enhance usage FETs, multiple strategies proposed, addressing anovulation through minimal stimulation, reducing cycle monitoring, exploring novel approaches. These approaches, widening window human chorionic gonadotropin administration proliferative phase (NPP) protocol, promising outcomes patients. However, further research is needed establish optimal timing effectiveness these strategies. Overall, enhancing practicality FETs crucial expanding their utilization ART.
منابع مشابه
comparison of pregnancy rate between fresh embryo transfers and frozen-thawed embryo transfers following icsi treatment
background: the use of assisted reproductive technology (art) is increasing in the world. the rate, efficacy and safety of art are very different among countries. there is an increase in the use of intra cytoplasmic sperm injection (icsi), single fresh embryo transfer (et) and frozen-thawed embryo transfer (fet). objective: the objective of this study was to compare pregnancy rate in fresh et a...
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BACKGROUND The use of assisted reproductive technology (ART) is increasing in the world. The rate, efficacy and safety of ART are very different among countries. There is an increase in the use of intra cytoplasmic sperm injection (ICSI), single fresh embryo transfer (ET) and frozen-thawed embryo transfer (FET). OBJECTIVE The objective of this study was to compare pregnancy rate in fresh ET a...
متن کاملComparison of clinical outcomes between fresh embryo transfers and frozen-thawed embryo transfers
BACKGROUND Advances in embryo culture technology and cryopreservation have led to a shift in in vitro fertilization (IVF) from early fresh or frozen-thawed cleavage embryo transfer to fresh or frozen-thawed blastocyst stage transfer. OBJECTIVE To compare the clinical outcomes of fresh embryo transfers and frozen-thawed embryo transfers. MATERIALS AND METHODS In this retrospective case contr...
متن کاملComparison of pregnancy outcomes of frozen embryo transfers in women undergoing artificial endometrial preparation with and without short and long-acting gonadotropin releasing hormone agonists
Background & aim: There are conflicting results regarding the benefit of gonadotropin releasing hormone (GnRH) agonist treatment on frozen embryo transfer (FET) outcome. No study was found to compare pregnancy outcome between patients undergoing short and long acting types of GnRH agonist for FET cycles. This study aimed to assess the effectiveness of short and long ac...
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ژورنال
عنوان ژورنال: Reproductive Biomedicine Online
سال: 2023
ISSN: ['1472-6483', '1472-6491']
DOI: https://doi.org/10.1016/j.rbmo.2023.103352