نتایج جستجو برای: ivf failure
تعداد نتایج: 381277 فیلتر نتایج به سال:
BACKGROUND A systematic review of randomized controlled trials (RCTs) comparing whether metformin co-administration with gonadotrophins for ovulation induction (OI) with timed intercourse or IVF improves outcome in women with polycystic ovary syndrome (PCOS). METHODS The quality of reporting of meta-analyses (QUOROM) guidelines were followed. A systematic computerized literature search of thr...
In this paper, we introduce the concept of IVF weakly m∗-continuous mappings on between IVF minimal spaces and investigate some characterizations for such mappings. Also we study the relationships IVF weakly m∗-continuous mappings and IVF M -compactness. Key ords : IVF minimal space, IVF weakly m∗-continuous, IVF M -compact, almost IVF M -compact, nearly IVF M -compact
Objective: Trying to diagnose clinically some suggested causes of unexplained infertility related to ovum picking, fertilization, embryo growth and implantation and to outline the most suitable management needed for these cases. Design: Prospective controlled diagnostic and management study. Setting: 50 fertile cases as control. Patients: Assessment of ovum picking was determined clinically in ...
We introduce the concepts of IVF m-semiopen sets, IVF m-preopen sets, IVF m-semicontinuous mappings and IVF mprecontinuous mappings on interval-valued fuzzy minimal spaces. We investigate characterizations of IVF m-semicontinuous mappings and IVF m-precontinuous mappings and study properties of IVF m-semiopen sets and IVF m-preopen sets.
Background: The cause of fertilization failure in IVF is most often due to the absence of sperm penetration but the reason why fertilization does not occur when intracytoplasmic sperm injection (ICSI) is applied is not clear. However some intrinsic oocyte problems may also be responsible for fertilization failure. It has been reported that 13% of unfertilized oocytes after IVF show morphologica...
With the introduction of intracytoplasmic sperm injection (ICSI), couples with severe male factor infertility have achieved fertilization and clinical pregnancy rates comparable to other in-vitro fertilization (IVF) patients. However, failure of fertilization still occurs in some patients despite the utilization of microsurgical sperm injection techniques. How such fertilization failure after I...
One in six Australian couples currently struggle with impaired fertility. In vitro fertilisation (IVF) has become the assisted reproductive technology (ART) of choice. The IVF process has inherent stresses: the invasive procedures; medication; knowledge that it might be the last possibility for pregnancy; and the high cost. Both authors have observed in different settings (one clinical and the ...
BACKGROUND Infertility and early pregnancy loss are prevalent as is exposure to secondhand tobacco smoke (STS). Previous research has suggested a relationship between STS exposure and early pregnancy loss, but studies have been limited by small study sizes and/or imprecise methods for exposure estimation. IVF allows for the collection of follicular fluid (FF), the fluid surrounding the pre-ovul...
infertility, usually defined as the failure of a couple to conceive after 12 months of regular unprotected intercourse. infertility sometimes is occurred with psychoemotional distress such as anxiety, interpersonal problems, disappointment, sadness, anger and depression. during the time infertile couples attempt to get pregnant, women with fertility problems experience more negative emotional f...
background: despite major advances in assisted reproductive techniques, the implantation rates remain relatively low. some studies have demonstrated that intrauterine infusion of granulocyte colony stimulating factor (g-csf) improves implantation in infertile women. objective: to assess the g-csf effects on ivf outcomes in women with normal endometrial thickness. materials and methods : in this...
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