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...

Background Effect of seasonal changes in human reproduction has been intensively researched. Some studies acknowledge influences of seasonal variation on natural conception, while others can not confirm them. The aim of this study was to investigate the effect of seasonal changes on different stages of assisted reproductive technology (ART) in Tehran. MaterialsAndMethods This study was carried ...

the pregnancy results of 17337 inseminations carried out in a dairy herd near cairo over a period of 12 years were retrospectively analyzed in relation to environmental temperature and temperature-humidity index (thi). the overall average of pregnancy rates to all inseminations was significantly (p

OBJECTIVES This report presents detailed pregnancy rates for 1990-2008, updating a national series of rates extending since 1976. METHODS Tabular and graphical data on pregnancy rates by age, race, and Hispanic origin, and by marital status are presented and described. RESULTS In 2008, an estimated 6,578,000 pregnancies resulted in 4,248,000 live births, 1,212,000 induced abortions, and 1,1...

background: implantation is one of the essential steps for the success of assisted reproductive techniques (art). their success depends on three main factors: embryo quality, endometrial receptivity (er), and synchrony between embryo and endometrium. there are various factors that regulate the complex process of implantation. in this regard, one may refer to human chorionic gonadotropin (hcg) a...

Objective The objective of this study is to compare rates of pregnancy and IVF parameters in subjects who were stimulated with follicle stimulating hormone (FSH) plus either recombinant human luteinizing hormone (r-LH) or human menopausal gonadotropins (hMG), in long gonadotropin releasing hormone (GnRH) agonist IVF protocols. MaterialsAndMethods This is a cohort study of patients undergoing IV...

Hydrosalpinx, is one of the severe manifestations of tubal disease, is associated with significantly lower implantation and pregnancy rates, increased spontaneous abortion and ectopic pregnancy.This condition is usually due to PID but may also result from peritonitis of any cause or tubal damage from previous surgery.The mechanism for poor outcome in patients undergoing IVF is not yet clear. Ma...

objective: the objective of this study is to compare rates of pregnancy and ivf parameters in subjects who were stimulated with follicle stimulating hormone (fsh) plus either recombinant human luteinizing hormone (r-lh) or human menopausal gonadotropins (hmg), in long gonadotropin releasing hormone (gnrh) agonist ivf protocols. materials and methods: this is a cohort study of patients undergoin...

background: general concern is that the pregnancy rate is higher with gnrh-agonist as a protocol of pituitary suppression. gnrh-antagonist protocol provides a shorter period of administration and an easy flexible protocol. objective: in this study, the outcomes of gnrh agonist and antagonist in icsi cycles are compared in normo responder patients. materials and methods: in this randomized clini...

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...