نتایج جستجو برای: rate of pregnancy
تعداد نتایج: 21218188 فیلتر نتایج به سال:
background: gnrh agonist and antagonist were developed to control the premature release of lh surge. there is some difference between two protocols. objective: we compared the outcome of frozen-thawed embryo transfer in infertile women who used gnrh agonist or antagonist protocol for previous coh cycle and evaluation of any adverse effect of gnrh antagonist on oocyte and embryo. materials and m...
background: natural endometrium in frozen-thawed embryo transfer (fet) may have some benefits upon implantation in patients with repeated implantation failure (rif). it might be due to possible differences between natural and stimulated endometrial growth factors and cytokins secretions. objective: the objective of this study was to compare the pregnancy rate of fet on modified natural cycle ve...
Background: The aim of this study was to determine the outcome of IVF/ ICSI by modification of embryo transfer technique following embryo transfer. Materials and Methods: In this randomized trial study, two groups of infertile women (n = 55) aged %40 years underwent in vitro fertilization or intracytoplasmic sperm injection treatment cycles with or without 0.2 mL of air pushed into the catheter...
OBJECTIVE To study the pregnancy outcomes of women with a dichorionic triamniotic triplet pregnancy that was reduced to a singleton pregnancy and to review the literature. METHODS We performed a nationwide retrospective cohort study. We compared time to delivery and perinatal mortality in dichorionic triplet pregnancies reduced to singletons with ongoing dichorionic triplet pregnancies and pr...
a bstract background: non‑medical utilization of pre‑implantation genetic diagnosis (pgd), like sex selection, is increasing, therefore it is necessary to follow‑up the health and outcome of fertilization and newborn’s birth followed pgd. the aim of this study was to evaluate the outcome of fertilization after sex selection by pgd and the relation between the age of parents and the outcome of f...
background: the latest studies reported that local endometrial injury is a useful method to improve the success of ivf-icsi outcome. objective: to assess whether local endometrial injury occurred by pipelle in the spontaneous cycle could improve implantation rate, cleavage rate, and pregnancy outcome in the subsequent ivf-icsi cycle in patients who had recurrent ivf failure. materials and metho...
Insemination at the uterotubal junction is a practical technique that can be used to decrease the number of spermatozoa used per insemination. Video endoscopic insemination allows one to visualize the uterotubal papilla during the insemination and provide higher pregnancy rates than a flexible AI catheter. Further studies are needed to determine if a consistent technique can be developed for de...
Objective The success rates of assisted reproduction technology (ART) could be developed with the improvement of ovarian stimulation protocols as well as the optimization of final oocyte maturation. The goal of this study was to compare oocyte maturation, fertilization and pregnancy rates among women with concomitant FSH administration at the time of hCG trigger and the hCG trigger alone. Mater...
fluorescence chemical sensors for the highly sensitive and selective determination of pb2+ , hg2+, co2+ and fe3+ ions in aqueous solutions are described. the ion sensing system was prepared by incorporating lipophilic ligand (l) as a neutral ion-selective fluoroionophore in the plasticized pvc membrane containing sodium tetraphenylborate or potasium tetrakis (p-chlorophenyl) borate as a liphoph...
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