Search results for "pregnancy rate"
showing 10 items of 97 documents
Circulating progesterone levels and ongoing pregnancy rates in controlled ovarian stimulation cycles for in vitro fertilization: analysis of over 400…
2010
background: The influence of elevated serum progesterone levels during in vitro fertilization/intracytoplasmic sperm injection (IVF/ ICSI) cycles on pregnancy rates is a matter of continued debate among fertility clinicians. Efforts to resolve this question have been impeded by the various assays used to measure progesterone and the different, arbitrary threshold values for defining ‘high’ progesterone levels. methods: A non-interventional, retrospective, observational, single-centre cohort study evaluated the relationship between serum progesterone levels on the day of human chorionic gonadotrophin (hCG) administration and the ongoing pregnancy rate in 4032 patients undergoing IVF/ICSI cyc…
Elective single versus double embryo transfer: live birth outcome and patient acceptance in a prospective randomised trial
2013
The purpose of this study was to determine which strategy of embryo transfer has a better trade-off in live birth delivery rate versus multiple pregnancy considering patient acceptance: elective single embryo transfer (eSET) or elective double embryo transfer (eDET). In all, 199 women <38 years of age undergoing their first IVF treatment in a private centre were included in a prospective open-label randomised controlled trial. Patients were randomised into four groups: (1) eSET on Day 3; (2) eSET on Day 5; (3) eDET on Day 3; and (4) eDET on Day 5. Per patient, main analysis included acceptance of assigned group, as well as multiple and live birth delivery rates of the fresh cycle. Second…
Cigarette smoking affects uterine receptiveness
2006
Background Cigarette smoking has long been known to have an effect on female fertility. The existence of an ovarian factor is clear when one considers that the mean age of the menopause is lower and IVF cycle outcome is worse in heavy smokers. The hypothesis of a concomitant uterine effect is raised by indirect evidence from in vitro and in vivo studies, but as yet, no direct evidence has been gained to confirm its existence. In this work, we analyse the association between smoking habit in oocyte recipients and cycle outcome. Methods We have retrospectively analysed the outcome of all oocyte donation cycles performed in our clinic from January 2002 to June 2005 from which there was availab…
Uterine effects of metformin administration in anovulatory women with polycystic ovary sindrome
2006
Background Metformin has been shown to improve fertility in anovulatory patients with polycystic ovary syndrome (PCOS), inducing not only a high ovulation and pregnancy rate but also reducing the incidence of miscarriages. The aim of the present study was to evaluate the uterine effects of metformin in patients with PCOS who ovulated under metformin. Methods Thirty-seven non-obese primary infertile anovulatory patients with PCOS and another 30 age- and body mass index-matched healthy women (control group) were studied. PCOS patients were treated with metformin (850 mg twice daily) for 6 months, whereas the control group did not receive any treatment. In these PCOS patients who ovulated whil…
Closed vs. Open Oocyte Vitrification Methods Are Equally Effective for Blastocyst Embryo Transfers: Prospective Study from a Sibling Oocyte Donation …
2020
<b><i>Purpose:</i></b> To assess whether open and closed vitrification protocols are equally effective for sibling-oocyte cycles when performing blastocyst embryo transfers. <b><i>Materials and Methods:</i></b> A prospective study was set up comparing the open and the closed vitrification techniques in oocyte recipients sharing sibling oocytes between 2014 and 2016. Sibling oocytes were randomly and equally assigned into the closed group (oocytes vitrified in a closed system) or the open group (oocytes vitrified in an open system). Intracytoplasmic sperm injection was performed on all cases. Embryo transfers were performed on day 5. Power anal…
Gamete intrafallopian transfer in the treatment of infertility: the first series at the University of Palermo
1986
Twenty-six couples with unexplained infertility (UI), nine women with repeated failures of artificial insemination with donor semen (AID), three women with mild endometriosis, three with periadnexal adhesions, one with hostile (not immunologic) cervical mucus, and one couple in which the male partner was affected by asthenospermia were treated by the gamete intrafallopian transfer (GIFT) technique. Three different protocols for controlled ovarian hyperstimulation were used, and an adequate follicular growth and oocyte maturation were achieved in all cases. Seventeen pregnancies were obtained, for a global pregnancy rate of 38.6%. Two pregnancies (11.7%) ended in clinical abortions, and one …
Cumulative newborn rates increase with the total number of transferred embryos according to an analysis of 15,792 ovum donation cycles
2011
Objective To measure the success of in vitro fertilization (IVF) of donated ova according to cumulative newborn rates (CNBR) per number of embryos required to achieve at least one newborn (EmbR), considering in addition the relevance of age and infertility etiology. Design Survival curves and Kaplan-Meier methods were employed to analyze CNBR with respect to the number of EmbR in a retrospective cohort of oocyte donation recipients. Setting University-affiliated infertility center. Patient(s) Infertile couples undergoing IVF with oocyte donation. Intervention(s) None. Main Outcome Measure(s) CNBR per EmbR. Result(s) The CNBR increased radically (up to 64.8%) between 1 and 5 EmbR, moderately…
P–231 Transnational oocyte donation program between Italy and Spain based on transport of vitrified oocytes: a five-years experience
2021
Abstract Study question What is the clinical efficacy of an oocyte donation program based on the transportation of vitrified oocytes between two countries? Summary answer The transnational oocyte donation program is efficient, safe and comparable to other strategies (transport of frozen sperm and embryos). What is known already Egg donation represents a valid treatment strategy for women who have exhausted their ovarian function and it has considerably increased in the last years. In Italy, egg donation is allowed after the judgment of the Constitutional Court n. 162 in 2014 but no reimbursement for the donors is provided. For this reason, the number of voluntary donors is irrelevant. There…
The use of morphokinetic as a predictor of implantation.
2017
In recent years the increased efforts intended for improving future outcomes in the laboratory have focused mostly on the search of additional markers of embryo quality to add up present embryo selection criteria. Time-lapse system involves an alternative tool in assisted reproduction techniques, being able to improve the embryo selection from a dynamic and interactive approach while standard embryo assessment implies a subjective and static morphology evaluation and consequently reducing the information gained for embryo selection, time-lapse technology adds several morphokinetic parameters, providing additional input for embryo evaluation. This further information represents a challenge f…
Bed rest after embryo transfer negatively affects in vitro fertilization: a randomized controlled clinical trial.
2013
Objective To evaluate the influence of 10 minutes of bed rest after ET on the achievement of a live-born infant (LBI) in patients undergoing IVF treatment with oocyte donation (OD). Design Prospective, randomized, parallel assignment, controlled trial. Setting Private IVF center. Patient(s) A total of 240 patients undergoing a first IVF cycle with OD in our center. Intervention(s) Ten minutes of bed rest after ET or no bed rest, that is, allowing patients to ambulate immediately after the ET. Main Outcome Measure(s) The primary outcome was LBI rate per randomized patient. Secondary outcomes were implantation rate and biochemical and clinical miscarriage rates. Result(s) LBI rates (56.7% vs.…