Search Results
Results 251 - 300 of 1965
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Shebl Omar - - 2009
The purpose of this case-control study was to compare implantation, pregnancy, and live birth rate of cryopreserved embryos with that of fresh embryos. A total of 1,488 assisted reproductive technology (ART) trials including 188 cryopreserved embryo replacement trials were reviewed. After proofing the exclusion criteria, 112 patients undergoing a cryopreserved ...
Mangalraj Ann M - - 2009
To evaluate the efficacy of blastocyst transfer in comparison with cleavage stage embryo in a similar cohort of women. Retrospective analysis. University teaching hospital. Women aged 35 or less undergoing in vitro fertilization/intracytoplasmic sperm injection between January 2005 and December 2006 were included in the study. When four or more ...
Kong Grace Wing Shan - - 2009
This investigation assessed the effect of serum estradiol levels on outcomes of in-vitro fertilization and embryo transfer (IVF) cycles. This was a retrospective cohort study of 1123 IVF cycles comparing impact of estradiol (E(2)) levels on follicular development, fertilization, embryo quality, implantation, pregnancy rate, miscarriage rate, and selected obstetric complications. ...
Baruffi Ricardo L R - - 2009
It has become an accepted procedure to transfer more than one embryo to the patient to achieve acceptable ongoing pregnancy rates. However, transfers of more than a single embryo increase the probability of establishing a multiple gestation. Single-embryo transfer can minimize twin pregnancies but may also lower live birth rates. ...
Derks Roos S - - 2009
Embryo transfer (ET) is the final and most vulnerable step in in vitro fertilisation (IVF) treatment. Pregnancy rates after ET may be influenced by several factors including cervical preparation, the performance of a dummy or mock transfer, the choice of catheter, the use of ultrasound guidance, removing the mucus or ...
Hannoun Antoine - - 2009
To assess the effect of wearing powdered gloves during embryo transfer as compared to un-powdered gloves on the pregnancy outcome of IVF cycles. Patients, undergoing embryo transfer procedures, were prospectively randomized into two groups: In the first (group A, n=356) group embryo transfer was performed while wearing powdered gloves; in ...
Wong I - - 2009
BACKGROUND: Radical trachelectomy (RT) has been established as a valuable fertility-preserving treatment in women with early stage cervical cancer. A number of these women will require assisted conception which may bring certain challenges to those managing treatment. An awareness of those challenges is essential to maximize outcome in terms of ...
Yao Zhan - - 2009
BACKGROUND: Embryo transfer is a crucial step in the IVF process. Most randomized prospective studies comparing transfer catheters have demonstrated significantly higher pregnancy rates with soft versus firm catheters, but none have taken the operator effect into account. Our aim was to perform a prospective randomized clinical trial comparing two ...
Mor Eliran - - 2009
PURPOSE: To report implantation and pregnancy rates following TET in women with anomalous uteri, and to compare these with previously reported rates following trans-cervical ET. MATERIALS AND METHODS: Between 1995 and 2003, 12 TET procedures were performed in seven women with Müllerian anomalies. Tubal ET was performed via laparoscopy 48 ...
Winger Edward E - - 2009
The purpose of this study was to investigate whether treatment with TNF-alpha inhibitors and/or intravenous immunoglobulin (IVIG) increases in vitro fertilization (IVF) success rates among young (<38 years) women with infertility and T helper 1/T helper 2 cytokine elevation. Seventy-five sub-fertile women with Th1/Th2 cytokine elevation were divided into four ...
Kahyaoglu Serkan - - 2008
AIMS: The objective of this study is to evaluate the in vitro fertilization and embryo transfer results of patients with endometriomas pretreated with laparoscopic cystectomy and cauterization compared with age-matched tubal infertility patients. METHODS: Records of the in vitro fertilization and embryo transfer unit have been retrospectively reviewed from September ...
Mui Lam Po - - 2008
OBJECTIVE: To determine whether early luteal-phase vaginal progesterone supplementation improves the outcome of in vitro fertilization-embryo transfer (IVF-ET). METHODS: A randomized, controlled trial was conducted on 197 women undergoing IVF-ET cycles with human chorionic gonadotropin (hCG) as the standard luteal-phase support. The participants were randomly assigned to either the study ...
Shapiro Bruce S - - 2009
OBJECTIVE: To describe success rates with bipronuclear (2PN) oocyte cryopreservation, followed by thaw, extended culture, and blastocyst transfer. DESIGN: Retrospective study. SETTING: Private fertility center. PATIENT(S): There were 48 blastocyst transfers after post-thaw extended culture in patients less than 35 years old and 43 transfers in patients 35-40 years old. ...
Hiraoka Kenichiro - - 2008
This case report describes successful pregnancies after vitrification of human day-7 blastocysts. A total of 16 day-7 blastocysts were vitrified and warmed. All 16 blastocysts survived after warming and were transferred to 11 patients. Six of the women (55%) became clinically pregnant and the implantation rate was 44% (7/16). Among ...
Yanaihara Atsushi - - 2008
PURPOSE: Frozen embryo transfer has been established as an indispensable ART procedure for both the effective use of surplus embryos and the prevention of ovarian hyperstimulation syndrome. The frequency of frozen embryo transfer is increasing in our clinic, and we report that frozen embryo transfer is effective for patients with ...
Olivius C - - 2008
IVF cryopreservation cycles are known to be less successful than fresh cycles. The objective of this study was to investigate what variables, maternal and embryonic, that independently predict the live birth rate in cryopreservation single embryo transfers (SET). A retrospective analysis was performed on 622 cryopreservation SET originating from 371 ...
Stillman Robert J - - 2009
OBJECTIVE: To evaluate efforts to reduce twin pregnancies through progressive implementation of elective single embryo transfer (eSET) among select patients over a 6-year period. DESIGN: Retrospective review. SETTING: Private practice IVF center. PATIENT(S): Infertile women undergoing 15,418 consecutive IVF-ET cycles. INTERVENTION(S): IVF-ET, including blastocyst-stage eSET among select patients with good ...
Staessen C - - 2008
BACKGROUND: Single-embryo transfer is a well-accepted strategy to avoid multiple pregnancies in an assisted reproductive technology (ART) programme. Besides the morphological quality and embryo kinetics up to the blastocyst stage, preimplantation genetic screening (PGS) of aneuploidy has been advocated as an adjuvant approach to select the embryo. METHODS: Couples with ...
Polotsky Alex J - - 2009
To evaluate patient characteristics and fresh in vitro fertilization (IVF) cycle parameters that influence success of sibling frozen-thawed embryo transfer (FET) cycles. Retrospective study. Academic infertility practice. Infertile women undergoing FET cycles using embryos cryopreserved on day 3 after insemination after an initial fresh IVF cycle. 90 FET cycles. Clinical ...
El-Shawarby Salem A - - 2008
The aim of this study was to compare the efficacy of two embryo transfer catheters: Wallace and Rocket Embryon in an IVF programme of a tertiary referral university centre. A total of 308 patients undergoing embryo transfer were prospectively randomized to either a transfer with the Wallace catheter or a ...
Meyer Liza R - - 2009
OBJECTIVE: To determine whether the routine use of preimplantation genetic screening (PGS) in "good prognosis" women improves in vitro fertilization (IVF) cycle outcome. DESIGN: Randomized, controlled, prospective clinical study. SETTING: Private infertility clinic. PATIENT(S): Infertile women predicted to have a good prognosis as defined by: age <39 years, normal ovarian ...
Barceló-Fimbres M - - 2009
The objective was to evaluate the use of phenazine ethosulfate (PES) during culture of embryos on fetal and postnatal calf development. Oocytes collected from abbatoir-derived ovaries were matured and fertilized, and the resulting embryos were cultured in vitro by standard procedures, in a chemically defined medium plus BSA. Day 0 ...
Balakier Hanna - - 2009
The objective of this prospective randomized double-blind clinical trial was to evaluate whether laser zona pellucida thinning of human embryos improves clinical outcomes in women <or=37 years old undergoing IVF-ET treatment. The study did not reveal any significant beneficial effect of laser zona thinning on clinical pregnancy (16 out of ...
Bodri Daniel - - 2009
In this retrospective, matched study we evaluated the outcome of 31 oocyte donation (OD) cycles performed in 29 Turner syndrome (TS) patients involving the elective transfer of a single, fresh cleavage-stage (day 2 to 3) embryo. Due to the fact that ongoing pregnancy rate was statistically significantly lower (3.2% versus ...
Harris Isiah D - - 2009
OBJECTIVE: To determine the effect of sonographer experience during ultrasound guided embryo transfer on pregnancy outcomes. DESIGN: Retrospective chart review. SETTING: A university-based academic practice. PATIENT(S): A total of 319 women who underwent in vitro fertilization and embryo transfer (IVF-ET) from the site-specific clinic. A total of 118 women (37%) ...
van Peperstraten A M - - 2008
BACKGROUND: After initial years of improvement, the multiple pregnancy rate after in vitro fertilization (IVF) in Europe now remains stable at 23% with single embryo transfer (SET) constituting 19% of all IVF cycles. Although elective SET prevents multiple pregnancies after IVF, couples and professionals apparently often decide to transfer more ...
Petersen Bj?rn - - 2008
The efficiency of porcine somatic nuclear transfer (born piglets/transferred embryos) is low. Here, we report a highly efficient protocol using peripubertal gilts as recipients synchronized to ovulate approximately 24 h after transfer of cloned embryos. Retrospectively, we compared the efficiency of two different synchronization protocols: In group 1, recipient animals ...
Hiraoka Kenichiro - - 2008
PURPOSE: To report successful pregnancies after the transfer of re-vitrified human day 7 blastocysts developed from vitrified cleaved embryos. METHODS AND RESULTS: A total of five day 7 blastocysts developed from vitrified cleaved embryos were re-vitrified and re-warmed. All of five re-vitrified day 7 blastocysts (100%) survived after warming and ...
Stachecki James J - - 2008
This study examined a new method for vitrification of blastocysts that is safe, simple and easy to learn and use. Current vitrification techniques have shortcomings that include the use of dimethyl sulphoxide, one of the more toxic cryoprotectants, and minute containers that are difficult to handle and are usually open ...
Fitzmaurice Gerard J - - 2008
To compare pregnancy rates with fresh and frozen embryo transfer in patients admitted to Royal Jubilee Maternity Service (RJMS), Belfast between January 1st 2004 and December 31st 2005 with ovarian hyperstimulation syndrome (OHSS). A retrospective analysis of all ART cycles (2,283) carried out in RJMS between January 1st 2004 and ...
Sun Qiang - - 2008
One of the technical bottlenecks in producing nonhuman primate models is that current assisted reproductive techniques, such as in vitro culture and frozen conservation of multicell-stage embryos, often result in poor embryo quality and subsequently lead to low birth rates. We investigated whether pronuclear embryo transfer can be used as ...
Rama Raju Gottumukkala Achyuta - - 2009
OBJECTIVE: To compare and evaluate the neonatal outcome in infants born after vitrified day 3 embryo transfers with that of fresh day 3 embryo transfers. DESIGN: Retrospective analysis. SETTING: Private assisted reproductive center. PATIENT(S): Sixty-nine women, who delivered 89 babies. INTERVENTION(S): Surplus day 3 cleavage stage embryos were vitrified using ...
Atabekoglu Cem - - 2008
To report two patients with ongoing pregnancies despite a dramatically sharp decrease in E(2) levels after coasting. Case report. Reproductive endocrinology and assisted reproduction unit of university hospital. One 30-year-old and one 25-year-old woman, both with unexplained infertility, in whom E(2) levels increased up to 6345 and 14,275 pg/mL during ...
Wang Bo - - 2008
PROBLEM: L-selectin ligand has displayed mediating adhesion at the maternal-fetal interface. Therefore, we investigated the impact of L-selectin ligand on establishing pregnancy in women undergoing in vitro fertilization and embryo transfer (IVF-ET). METHOD OF STUDY: Endometrium between cycle days LH +6 to +9 was obtained from 56 Chinese women referred ...
- - 2008
To review the effect of the number of embryos transferred on the outcome of in vitro fertilization (IVF), to provide guidelines on the number of embryos to transfer in IVF-embryo transfer (ET) in order to optimize healthy live births and minimize multiple pregnancies. Rates of live birth, clinical pregnancy, and ...
Fotouh, Ismail Aboul
Objective: To determine the prognostic value of presence and level of bacterial contamination on the pregnancy outcome in patients undergoing embryo transfer following IVF/ICSI. Design: Prospective, cross-sectional observational study Materials and methods: Twenty-five consecutive patients undergoing an embryo transfer cycle as a part of their IVF/ ICSI treatment were included. ...
Saki Ghasem - - 2008
Vitrification is the commonly used method for long-term storage of pre-implantation mammalian embryos. It is an essential part of assisted reproductive technologies. The re-expansion rate, pregnancy and birth rate of vitrified blastocysts using CPS were compared with OPS and Conventional Straw. Female NMRI mice were injected with Gonadotrophins in order ...
Lancastle Deborah - - 2008
BACKGROUND: Waiting for a pregnancy test during fertility treatment can be particularly stressful because distress and intrusive cognitions about the nature and implications of the result can reduce quality of life. The aim of this feasibility study was to establish whether a novel brief coping intervention (positive reappraisal coping intervention, ...
Yakin Kayhan - - 2008
OBJECTIVE: The aim of this study was to evaluate the efficacy of preimplantation genetic screening (PGS) in women younger than 38 years and who had recurrent implantation failure (RIF). STUDY DESIGN: A prospective nonrandomized parallel group study was performed in the assisted reproduction unit of a private tertiary care hospital. ...
Konc Janos - - 2008
PURPOSE: To present data obtained with clinical application of oocyte cryopreservation. METHODS: Slow freezing/rapid thawing in PBS based medium containing 1.5 M propanediol + 0.3 M sucrose. RESULTS: A total of 127 embryos were transferred into 54 patients (1.9 embryo/cycle, 64 transfer cycles). Clinical pregnancy rate of 20% per cycle ...
Ali C Rubina - - 2008
The purpose of this study was to compare the reproductive outcome of ultrasound-guided (USG) embryo transfers versus clinical touch embryo transfers. A statistically powered retrospective analysis of women undergoing fresh and frozen embryo transfers in a National Health Service-based tertiary referral centre in the Department of Reproductive Medicine, St Mary's ...
Moustafa Mohamed Khaled - - 2008
High numbers of embryos transferred during assisted reproduction have become implicated as the cause of higher than normal twinning and multiple gestation rates following this form of therapy. However, reducing the number to a single embryo transferred has been shown to carry unfavourable results in the first cycle, but with ...
Escudero T - - 2008
Complex chromosome rearrangements (CCR) are structural rearrangements that involve more than two breakpoints. The most common ones involve three chromosomes and three breakpoints, but double translocations can also occur. Theoretically, the potential for chromosome imbalance in the gametes of CCR carriers is higher than for simple translocations, and thus they ...
Neumann Rebecca B - - 2008
Diffusion of tritiated water (referred to as tritium) and helium-3 between mobile and immobile regions in aquifers (mass transfer) can affect tritium and helium-3 concentrations and hence tritium-helium-3 (3H/3He) ages that are used to estimate aquifer recharge and groundwater residence times. Tritium and helium-3 chromatographically separate during transport because their ...
Hardarson T T Fertility Centre Scandinavia, Carlanderska Hospital, Göteborg, - - 2008
Advanced maternal age (AMA) is an important parameter that negatively influences the clinical pregnancy rate in IVF, in particular owing to the increased embryo aneuploidy rate. It has thus been suggested that only transferring euploid embryos in this patient group would improve the pregnancy rate. The purpose of this study ...
van Peperstraten A M - - 2008
BACKGROUND: Elective single embryo transfer (eSET) enables the prevention of multiple pregnancies after in vitro fertilization (IVF). However, in Europe, the multiple pregnancy rate after IVF remains stable at approximately 23%, with SET occurring in 15% of all IVF cycles. In most European clinics, the decision for the number of ...
Allahbadia Gautam N - - 2008
Transient motion of embryo transfer-associated antibubbles was observed. This prospective study was performed to determine if this antibubble movement can predict a successful outcome. Transabdominal ultrasound-guided embryo transfers were performed in 187 recipients receiving identical hormone replacement therapy. All embryo transfers were performed by the first author, using the Sureview ...
Affolabi D - - 2008
Despite a theoretical risk of transfer of bacilli from a positive to a negative smear, bulk staining is routinely performed in many laboratories. To assess this risk in our laboratory, two smears were made from each sputum specimen and stained with auramine: one smear was stained on a rack and ...
Mocanu E V - - 2008
Cryopreservation of zygotes and subsequent thaw and transfer is an established ART treatment. We assessed if success rates frozen-thawed (day 2) zygotes are comparable with the outcome in fresh cycles of treatment. We performed a prospective follow-up and analysis of all frozen (FZT) and fresh cycles of treatment during a ...
Kalu E - - 2008
OBJECTIVES: To investigate the effects of single blastocyst transfer (SBT) on live birth and multiple pregnancy in women undergoing in vitro fertilisation (IVF). DESIGN: Descriptive cohort study. SETTING: A London private IVF/postgraduate training unit. SAMPLE: A total of 700 fresh and 102 frozen blastocyst cycles performed between January 2005 and ...
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