Search Results
Results 451 - 500 of 1951
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Akin James W - - 2007
OBJECTIVE: To report on the establishment of a commercial donor egg bank (CryoEggs International, LP) and to present our initial experience from the first four patients to receive eggs. DESIGN: Case report. SETTING: Private fertility clinic. PATIENT(S): The four recipient women were aged 43, 43, 40, and 33 years. All ...
- - 2007
OBJECTIVE: To summarize the procedures and outcomes of assisted reproductive technologies (ART) that were initiated in the United States in 2001. DESIGN: Data were collected electronically using the Society for Assisted Reproductive Technology (SART) Clinic Outcome Reporting System software and submitted to the American Society for Reproductive Medicine/SART Registry. PARTICIPANT(S): ...
Olivares-Donoso R - - 2007
Transgenerational maternal effects on performance (rm) after host transfer were evaluated in the generalist aphid Myzus persicae s.s., and in its subspecies specialized on tobacco, M. persicae nicotianae Blackman. We tested whether the performance of these taxa, when reared separately on optimal and suboptimal hosts (as sources of different maternal ...
Späth D Bertarelli - - 2007
A meeting of experts on the subject of multiple pregnancies was held on 25 November 2005 at the invitation of the Bertarelli Foundation, Switzerland. Swiss law on reproductive medicine prohibits the selection of embryos, a situation that not only reduces the success rate of IVF, but also makes it virtually ...
Kokkali G - - 2007
BACKGROUND: Trophectoderm biopsy at the blastocyst stage is an emerging approach in preimplantation genetic diagnosis (PGD). This study aimed to compare genotyping success and implantation rates in PGD cycles for beta-thalassaemia following biopsy at the cleavage versus the blastocyst stage, with transfer of blastocysts. METHODS: This pilot study included 20 ...
Ciray H Nadir - - 2007
The objective of investigating the impact of the time that embryos remain in the catheter on the outcome of cycles was assessed by measuring the period between loading the catheter and discharging the embryos in 300 transfer cycles. The pregnancy and implantation rates were similar in cycles with good embryo ...
Skorupski Josh C - - 2007
OBJECTIVE: To assess the success of day 4 embryo transfers (ETs) following IVF at one institution. DESIGN: Retrospective analysis. SETTING: A university hospital IVF program. PATIENT(S): Two hundred nondonor, fresh IVF cycles. INTERVENTION(S): None. MAIN OUTCOME MEASURE: Outcomes of IVF. Outcome assessments after day 4 ETs included rates of implantation, ...
Donoso P - - 2007
BACKGROUND: The Belgian legislation imposes single embryo transfer (SET) on women of <36 years in their first treatment cycle to avoid multiple pregnancies. The aim of this study is to assess the impact of this legislation on the outcome of preimplantation genetic diagnosis (PGD) for inherited diseases in young women ...
Lanzendorf Susan E - - 2007
OBJECTIVE: To compare the clinical outcomes of patients whose transferred embryos underwent either laser-assisted hatching or hatching with acidified medium. DESIGN: Randomized, prospective, double-blinded study. SETTING: University-based IVF center. PATIENT(S): Clinical outcomes following IVF were compared in 159 patient cycles who randomly had all transferred embryos undergo laser-assisted hatching (Laser; ...
Check Jerome H - - 2007
OBJECTIVE: To evaluate independently the effect of blastomere number and degree of fragmentation on pregnancy outcome following single ETs in women with a decreased egg reserve. DESIGN: Retrospective cohort analysis. SETTING: In vitro fertilization center of a university-based practice. PATIENT(S): Women having a single ET related to a decreased egg ...
Wang W - - 2007
PURPOSE: To determine if acupuncture performed during the follicular phase and luteal phase but not on the day of embryo transfer could improve the outcome following IVF-ET compared to controls. METHODS: Acupuncture was started biweekly from day 5 of the follicular phase through the luteal phase but not on the ...
Grace J - - 2007
Assisted hatching (AH) was developed as a possible solution to repeated implantation failure. The aim of this analysis was to examine the relationship between the morphology of embryos in a previous cycle on outcome in a subsequent cycle with AH. A total of 175 AH cycles performed after previous failed ...
Emery Marysa - - 2007
The global rise in multiple pregnancy rates due to assisted reproductive technology has led to the development of various strategies to diminish these rates without jeopardising pregnancy. Policies at treatment centres may include the option of fetal reduction, although each centre is subject to national laws and its own guidelines. ...
Ciepiela Przemyslaw - - 2007
INTRODUCTION: Polycystic ovarian syndrome (PCOS) is a hormonal and metabolic disorder which poses problems with controlled ovarian stimulation (COH). It has been also postulated that PCOS patients have oocytes and embryos with poorer quality which affects IVF results. AIM: To verify IVF outcome in non-obese patients with PCOS. MATERIALS AND ...
Bergh Christina - - 2007
Studies show adverse outcomes for children born after IVF, owing to increased rates of multiple births and associated higher prematurity rates and neonatal problems. Transferring one embryo results mainly in singletons, but concerns still remain about a decrease in birth rates, and single embryo transfer (SET) is not widely accepted. ...
Gruber Irmhild - - 2007
BACKGROUND: To determine whether estradiol-to-progesterone (E2/P) ratios at the time of embryo transfer (ET) have an effect on implantation and pregnancy in IVF cycles. METHODS: 239 women consecutively treated by IVF or ICSI were retrospectively analyzed and early luteal serum E2 and P were measured on the day of ET. ...
Abou-Setta Ahmed M - - 2007
BACKGROUND: Part of the success of ultrasound-guided embryo transfer has been associated with the beneficial effect of uterine straightening by passive bladder distention. Even so, this has not been properly analysed in the literature. METHODS: This is a systematic review and meta-analysis of prospective, randomised, controlled trials, comparing embryo transfer ...
Quea G - - 2007
Multiple pregnancies are a serious adverse event of IVF treatment. Several strategies have been developed to improve embryo selection and embryo developmental potential to increase pregnancy rates without increasing the risk of multiple pregnancies. The only way to effectively solve this problem is to reduce the number of embryos transferred ...
Sunde Arne - - 2007
Multiple pregnancies in assisted reproduction can be regarded as iatrogenic and avoidable, given that the phenomenon is related to the number of embryos replaced. Prospective studies have shown that transferring one fresh embryo and subsequently one frozen embryo gives similar cumulative pregnancy rates to transferring two fresh embryos. However, the ...
Giorgetti C - - 2007
The value of early cleavage (EC) assessment is still being debated. The aim of this prospective study was to examine the predictive value of EC assessment performed exactly 26 h after insemination by IVF or intracytoplasmic sperm injection (ICSI) in a programme of elective single embryo transfer (SET) performed at ...
Yanaihara Atsushi - - 2007
We present a series of monozygous multiple gestations achieved following in vitro fertilization (IVF): one case of monochorionic triplet pregnancy and six cases of dizygotic triplet pregnancy. From September 2000 to December 2006, all patients achieving clinical pregnancy by ART were reviewed (n = 2433). A 37 year-old woman who ...
Katsoff B - - 2007
INTRODUCTION: Recurrent episceleritis is uncommon. Lymphocyte immunotherapy (LIT) is frequently useful in establishing successful pregnancies in women with previously failed in vitro fertilization (IVF) cycles. METHODS: A woman with recurrent episcleritis and previous splenectomy was carefully questioned to see if there was any association with having had the LIT procedure. ...
Liang Xianwei - - 2007
The main objective of this study was to compare pregnancy and calving rates following transfer of in-vitro-produced fresh river and F1 (river x swamp) buffalo embryos in recipients synchronised by Ovsynch protocol or following natural oestrus. River embryos were produced from cumulus-oocyte complexes (COCs) derived by ovum pick up (OPU) ...
Blake D A - - 2007
Recent advances in cell culture media have led to a shift in IVF practice from early cleavage embryo transfer to blastocyst stage transfer. The rationale for blastocyst culture is to improve both uterine and embryonic synchronicity and self selection of viable embryos thus resulting in higher implantation rates. To determine ...
Brown J A - - 2007
Many women undergoing an Assisted Reproductive Technology (ART) cycle will not achieve a live birth. Failure at the embryo transfer stage may be due to poor embryo quality, lack of uterine receptivity, or the transfer technique itself. Numerous methods, including the use of ultrasound guidance for proper catheter placement in ...
Dowling-Lacey Donna - - 2007
To determine if the elective transfer of two embryos reduced the incidence of multiple gestations while maintaining high pregnancy rates. IVF patients and recipients of oocyte donation with an elective day-3 transfer of 2 or 3 embryos were studied. RESULT(s): In IVF, the elective transfer of 2 embryos resulted in ...
Balaban Basak - - 2007
OBJECTIVE: To compare the outcome of frozen-thawed ET cycles where embryos had been stored in conventional versus ionomeric resin-based, high-security straws (HSSs). DESIGN: Prospective, randomized study. SETTING: Private assisted-reproduction unit. PATIENT(S): Three hundred and six freeze cycles, and 197 thaw cycles. INTERVENTION(S): Day 3 embryos (n = 1,268) were frozen, ...
Dixon T E - - 2007
An interspecific embryo transfer program was conducted for genetic improvement and increasing the number of offspring from a flock of mouflon sheep in Argentina. The female donor mouflons were divided into three groups, G1 (n=5), G2 (n=4) and G3 (n=5). The total NIH-FSH-P1 dose given to each donor on the ...
Tur R - - 2006
Since the development of assisted reproduction techniques most countries have witnessed increased rates of multiple pregnancy. Despite the guidelines proposed by various scientific societies these rates continue to be abnormally high. In Spain, as in other Mediterranean countries, a greater number of embryos are transferred than in northern and central ...
Grace J - - 2006
OBJECTIVE: To report on our experience with preimplantation genetic diagnosis (PGD) cycles performed for serious genetic disease in relation to the clinical factors affecting outcome. DESIGN: Retrospective review of data from a single centre. SETTING: Tertiary referral PGD centre in a London teaching hospital. METHODS: The PGD cycles included 172 ...
Otani Tetsuo - - 2006
Preimplantation genetic diagnosis (PGD) for translocations has been shown to significantly reduce the risk of recurrent miscarriage, but because the majority of embryos produced are unbalanced, pregnancy rate is relatively low since 20% or more cycles have no normal or balanced embryos to transfer. The purpose of this study was ...
Van Landuyt L - - 2006
Since 1 July 2003, a new transfer policy aiming to reduce multiple pregnancies was brought into law in Belgium. The policy restricts the number of embryos transferred, depending on the patient's age and treatment cycle. This study aimed to evaluate the effect of this policy. Two 15-month periods before and ...
Roberts Elizabeth F S - - 2006
Catholicism is the only major world religion that unequivocally bans the use of in vitro fertilization (IVF). Nevertheless, in Ecuador, Catholic IVF practitioners declare God's dominion over their IVF laboratories and clinics in explaining pregnancy outcomes. My analysis of this routine combination of spiritual and material causal models in Ecuadorian ...
Stener-Victorin Elisabet - - 2006
During the last five years the use of acupuncture in female infertility as an adjuvant to conventional treatment in assisted reproductive technology (ART) has increased in popularity. The present paper briefly discusses clinical and experimental data on the effect of acupuncture on uterine and ovarian blood flow, as an analgesic ...
Newton Christopher R - - 2007
OBJECTIVE: To identify factors that influence patient decision making concerning embryo transfer. DESIGN: Prospective analysis. SETTING: In vitro fertilization unit at a tertiary-care, university-affiliated teaching hospital. PATIENT(S): Seventy-nine women and 53 men who were referred consecutively for IVF treatment. INTERVENTION(S): Provision of risk information about complications of twin pregnancy. MAIN ...
Rhodes Tiffany L - - 2007
OBJECTIVE: To compare two flexible catheters and determine whether pregnancy rates (PRs) differed. DESIGN: Prospective, randomized pilot study. SETTING: Tertiary-care infertility practice. PATIENT(S): The subjects for this study were 100 women undergoing assisted reproductive technology (ART) cycles between September 2003 and October 2005. INTERVENTION(S): None. MAIN OUTCOME MEASURE: Clinical PR ...
Urman Bulent - - 2007
OBJECTIVE: To compare the clinical outcomes of cryopreservation according to the indications for freezing and the outcomes of the fresh cycle from which the embryos were derived. DESIGN: Retrospective study. SETTING: Private assisted-reproduction unit. PATIENT(S): Three thousand, three hundred and sixty-eight embryos in 702 frozen-thawed embryo transfer (ET) cycles. INTERVENTION(S): ...
Sagoskin Arthur W - - 2007
OBJECTIVE: To evaluate whether assisted hatching improves clinical outcomes of embryo transfers to good prognosis patients, defined as patients < or =39 years with normal follicle-stimulating hormone (FSH) and E(2) levels, no more than one previous unsuccessful cycle of in vitro fertilization (IVF)-embryo transfer, and good embryo quality. DESIGN: Prospective ...
Divry Véronique - - 2007
OBJECTIVE: To report on a case of heterotopic triplet pregnancy after in utero transfer of three embryos obtained by in vitro fertilization (IVF), with progression of the intrauterine twin pregnancy after resection of the cornual pregnancy. DESIGN: Technique and instrumentation. SETTING: Département de Médecine de la Reproduction, Hôpital Edouard Herriot, ...
Fiddelers A A A - - 2007
Multiple pregnancies lead to complications and induce high costs. The most successful way to decrease multiple pregnancies in IVF is to transfer only one embryo, which might reduce the efficacy of treatment. The objective of this review is to determine which embryo-transfer policy is most cost-effective: elective single-embryo transfer (eSET) ...
Allegra Adolfo - - 2007
OBJECTIVE: To describe the occurrence and management of conjoined twins (CTs) in a trichorionic quadruplet pregnancy after the transfer of three embryos obtained by intracytoplasmic sperm injection (ICSI) that had undergone assisted zona hatching (AZH) using a noncontact laser. DESIGN: Case report. SETTING: Private and public IVF centers. PATIENT(S): A ...
Scotland G S - - 2007
Elective single embryo transfer (eSET) is increasingly being considered as a means to reduce twin pregnancies associated with in vitro fertilisation treatment. However, it is important to consider the cost-effectiveness of alternative strategies when considering a change in policy. A review of the literature showed only five studies assessing both ...
Pereira C R - - 2006
The jundiá (Rhamdia quelen, Quoy and Gaimard) is an endemic South American fish species. Because this species supports cold winters and grows faster during warm months, it has begun to be viewed as an ideal species for fish production in southern South America. In the present study, jundiá oocytes used ...
Richter Kevin S - - 2007
OBJECTIVE: To evaluate the relationship between endometrial thickness and clinical outcome of IVF and ET. DESIGN: Retrospective study. SETTING: Private assisted reproductive technology center. PATIENTS: One thousand two hundred and ninety-four infertility patients. INTERVENTIONS: IVF and fresh autologous ET of two blastocyst-stage embryos, including at least one good-quality blastocyst. MAIN ...
Kea Bory - - 2007
We compared the effects of two standard oxygen concentrations, physiological (5% O(2), 5% CO(2), and 90% N(2)) and atmospheric (5% CO(2) with the balance as air), on fertilization, embryo development, and pregnancy rate in 106 patients undergoing IVF, excluding donor oocyte cycles and preimplantation genetic diagnosis cycles. The differences in ...
Stone Bronte A - - 2006
OBJECTIVE: To determine whether elements of treatment associated with faster doubling times of total beta-hCG in serum (beta-t2) in pregnant patients are also associated with a higher likelihood of pregnancy in all patients. DESIGN: Retrospective analysis of beta-t2 values, elements of ovarian stimulation (COH), and outcomes. SETTING: Private assisted reproductive ...
Baxter Bendus Allison E - - 2006
OBJECTIVE: Variations in pregnancy rates (PR) between IVF programs are due to multiple factors, including embryo quality. Standardized embryo grading systems have been developed to improve communication between embryologists and clinicians. However, these grading systems have not been validated. We sought to quantify both interobserver and intraobserver variability using a ...
Verberg M F G - - 2007
Assisted reproductive technologies (ART) are now widely accepted as effective treatment for most causes of infertility. With improving success rates, attention has turned to the problem of multiple pregnancies, which are associated with a poor perinatal outcome, maternal complications and significant financial consequences. The challenge is to reduce multigestational pregnancies ...
Feyereisen Estelle - - 2007
OBJECTIVE: To investigate the evolution of techniques and strategies and to evaluate the results of preimplantation genetic diagnosis (PGD) from January 2000 to December 2004 in chromosomal, monogenic and mitochondrial DNA disorders treated at our institution. DESIGN: Retrospective study. SETTING: Single French Parisian PGD center. PATIENT(S): Patients at risk of ...
Loutradi Kalliopi E - - 2007
OBJECTIVE: To examine whether a high concentration of recombinant hyaluronan in the embryo transfer (ET) medium can influence pregnancy rates in humans. DESIGN: Retrospective, matched group study. SETTING: Private and university hospital in vitro fertilization (IVF) units. PATIENT(S): Couples undergoing IVF or intracytoplasmic sperm injection (ICSI) were divided in two ...
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