Search Results
Results 401 - 450 of 1951
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Schoolcraft William B - - 2008
OBJECTIVE: To compare the efficacy of a microdose GnRH agonist flare (ML) with a GnRH antagonist/letrozole (AL) protocol before IVF-ET in poor responders. DESIGN: Prospective controlled trial. SETTING: Private assisted reproductive technology center. PATIENT(S): Five hundred thirty-four infertile women classified as past or potential poor responders based on clinic-specific criteria. ...
Drost M - - 2007
Embryo transfer techniques in water buffalo were derived from those in cattle. However, the success rate is much lower in buffaloes, due to their inherent lower fertility and poor superovulatory response. The buffalo ovary has a smaller population of recruitable follicles at any given time than the ovary of the ...
Carrillo-Vadillo Raquel - - 2007
OBJECTIVE: To report a case of quadruple gestation (two sets of monozygotic twins) after intracytoplasmic sperm injection (ICSI) and transfer of two embryos. DESIGN: Case report. SETTING: Tertiary clinical and academic medical center. PATIENT(S): Thirty-four-year-old patient who underwent an ICSI cycle. INTERVENTION(S): After 7 years of primary sterility for andrologic ...
Kung Fu-Tsai - - 2007
OBJECTIVE: To explore the relationships between vascular endothelial growth factor (VEGF) levels in the preimplantation luteal phase and ovarian response, embryonic development, pregnancy outcome and occurrence of ovarian hyperstimulation syndrome (OHSS) in women undergoing in vitro fertilization (IVF). STUDY DESIGN: The level of total VEGF in peritoneal fluid and serum ...
Abou-Setta Ahmed M - - 2007
The site of embryo replacement has been postulated as being important to the success of IVF/ICSI. In order to determine the best site for embryo deposition during embryo transfer, a meta-analysis of randomized trials comparing different uterine deposition sites was undertaken. Electronic (e.g. PubMed, EMBASE, Cochrane Library, LILACS) and hand ...
Nygren Karl-Gösta - - 2007
There are several good reasons to assume that single embryo transfer (SET) eventually will become the norm internationally in IVF treatments. A tendency is clearly visible, as demonstrated in the latest IVF World Report. The Nordic countries and Belgium have been leading the way. Sweden at present has 70% SET, ...
Schieve Laura A - - 2007
Assisted reproductive technology (ART) treatments, such as in vitro fertilization, have benefited many couples worldwide. However, ART as currently practiced, with the usual transfer of at least two embryos, poses sizable risks for multiple-gestation pregnancy and accompanying serious maternal and child health sequelae. While limiting the number of embryos transferred ...
Hiraoka Kenichiro - - 2007
BACKGROUND: Vitrification is a fairly well-established technique for cryopreservation of human zona-intact blastocysts. However, little is known about the efficacy of the vitrification technique for zona-free hatched blastocysts. CASE: A total of 4 hatched blastocysts from 4 healthy, infertile women undergoing in vitro fertilization were vitrified and warmed. All 4 ...
Nicoli Alessia - - 2007
OBJECTIVE: To investigate the hypothesis that Z-score criteria represent a reliable predictor of implantation rate and pregnancy outcome in in vitro fertilization (IVF) and intracytoplasmic sperm injection (ICSI) cycles, excluding the possibility of embryo selection before the embryo transfer. DESIGN: Retrospective clinical study. SETTING: Centre of Reproductive Medicine, Department of ...
Andersen A Nyboe - - 2007
BACKGROUND: European results of assisted reproductive techniques (ARTs) from treatments initiated during 2003 are presented in this seventh report. METHODS: Data were mainly collected from already existing national registers. From 28 countries, 725 clinics reported 365 103 treatment cycles with: IVF 132 932, ICSI 162 149, frozen embryo replacement (FER) ...
Block J - - 2007
Culture of bovine embryos in the presence of insulin-like growth factor-1 (IGF-1) can increase pregnancy rates following transfer to heat-stressed, lactating dairy cows. The objective of the present experiment was to determine whether the effect of IGF-1 on post-transfer embryo survival was a general effect or one specific to heat ...
Eytan Osnat - - 2007
OBJECTIVE: To investigate the dispersion of transferred matter within a uterine laboratory model during and after embryo transfer (ET) as a function of uterine position, catheter placement, and injection speed. DESIGN: Experimental setup. SETTING: Reproductive bioengineering laboratory. PATIENT(S): N/A INTERVENTION(S): N/A MAIN OUTCOME MEASURE(S): Laboratory simulations of ET into a ...
Knopman Jaime M - - 2007
OBJECTIVE: To report a case of a heterotopic primary abdominal pregnancy after two-blastocyst IVF-ET. DESIGN: Case report. SETTING: University-based IVF program. PATIENT(S): A woman with a heterotopic abdominal pregnancy after IVF-ET. INTERVENTION(S): Pituitary down-regulation with luteal antagon, ovulation induction with menotropins, IVF-ET, progesterone in oil for luteal support, dilation and ...
Stern Judy E - - 2007
OBJECTIVE: [1] To evaluate trends in number of embryos transferred and resultant high-order multiple (HOM) pregnancy rates by Society for Assisted Reproductive Technology (SART)-member clinics between 1996 and 2003 and [2] to relate these practice patterns and outcomes to clinic compliance with SART-American Society for Reproductive Medicine (ASRM) embryo transfer ...
Jun Sunny H - - 2007
OBJECTIVE: To compare the rate of ectopic pregnancy (EP) with fresh versus frozen blastocyst transfer in our program during the same time period. DESIGN: Retrospective analysis. SETTING: University IVF program. PATIENT(S): Women who achieved a clinical pregnancy after IVF between 1998 and 2005. INTERVENTION(S): In our program, cryopreservation is performed ...
Lambers Marieke J - - 2007
OBJECTIVE: The possibility to visualize the transfer air bubbles is one of the main benefits of ultrasonographic-guided embryo transfer. The objective of this study was to analyze the relation between the position of the air bubbles and pregnancy rates. DESIGN: Prospective data-analysis. SETTING: University fertility clinic. PATIENT(S): IVF and intracytoplasmic ...
Azim Amr - - 2007
OBJECTIVE: To reduce estrogen exposure in women with endometrial cancer undergoing in vitro fertilization using an aromatase inhibitor. DESIGN: Prospective case series. SETTING: Academic center for reproductive medicine. PATIENT(S): Endometrial carcinoma patients presenting for fertility preservation or fresh embryo transfer to gestational carrier. INTERVENTION(S): Four patients with endometroid carcinoma underwent ...
Twisk Moniek - - 2007
With identical pregnancy rates after elective single embryo transfer (ET) and double ET strategies consisting of three cycles of IVF or intracytoplasmic sperm injection (ICSI) plus transfers of thawed/frozen embryos if available, 46% of the women undergoing IVF/ICSI favor elective single ET. If elective single ET lowers pregnancy chances with ...
van Montfoort Aafke P A - - 2007
INTRODUCTION: In several clinics, elective single-embryo transfer (eSET) is applied in a selected group of patients based on age and the availability of a good-quality embryo. Whether or not eSET can be applied irrespective of the presence of a good-quality embryo in the first cycle, to further reduce the twin ...
Gleicher Norbert - - 2007
OBJECTIVE: In follow-up to an earlier study of in vitro fertilization (IVF) outcomes in Europe and the U.S. for the year 2001, the present study reports on 2002 outcomes in an attempt to determine diverging practice trends. DESIGN: Retrospective cohort comparisons. SETTING: Academically affiliated private fertility center. PATIENT(S): This study ...
Lee Seok-Yoon - - 2007
This study was conducted to report the clinical-pregnancy outcome after vitrification of the blastocysts produced from in vitro maturation cycles. The survival rate after thawing was 92.0% (92/100). The clinical-pregnancy and implantation rates were 43.8% and 23.6%, respectively. These results suggest that the blastocyst-stage embryos produced from in vitro maturation ...
Nezhat Moossavifar, Nayereh Khadem, ...
Background: It has been demonstrated that performing a mock embryo transfer (ET) significantly improves the pregnancy rate in IVF cycles. The mock ET could be performed prior to the stimulation cycle or immediately before real ET. The problem of the first procedure is the possibility of variation in the uterine ...
Varla-Leftherioti M - - 2007
The aim of the study was to investigate whether human leukocyte antigen (HLA) allele sharing between partners or the maternal killer immunoglobulin-like receptor (KIR) repertoire is associated with recurrent spontaneous abortion (RSA) and repeated implantation failure after in vitro fertilization (IVF)/embryo transfer. From a total population of 158 RSA couples, ...
Ata Baris - - 2007
The aim of this study was to compare the clinical performance of Wallace and Labotect embryo transfer catheters in a single assisted reproduction centre. A total of 260 women undergoing embryo transfer were randomized between Wallace and Labotect catheters. When both catheters failed to negotiate the cervical canal, the transfer ...
Mir Mehrdad Farsi, Ali ...
Background:Multiple factors have been suggested for prediction of pregnancy in Intracytoplasmic sperm injection (ICSI) cycles such as the number of injected oocytes, fertilization rate, embryo morphology and quality of transferred embryos. Predictive value of these factors is important in ICSI outcome. Objectives: To evaluate the role of embryo morphology for ...
Purcell Karen J - - 2007
OBJECTIVE: To determine whether bed rest after embryo transfer leads to improved pregnancy rates (PR). DESIGN: Randomized controlled trial. SETTING: University reproductive health clinic. PATIENT(S): Women undergoing IVF. INTERVENTION(S): Patients undergoing 164 cycles of IVF were randomized to 30 minutes of bed rest after embryo transfer or immediate discharge from ...
Zohav Efraim - - 2007
To evaluate the role of 3-D US measurement of the endometrium during early IVF-pregnancy and before the appearance of gestational sac in the prediction of pregnancies outcome. 60 pregnant women following IVF treatment were included in the study. The women underwent transvaginal 3D US measurements of endometrial volume and thickness ...
Martins Wellington Paula - - 2007
Determine if the evaluation of endometrium one week after embryo transfer can predict pregnancy. Endometrial volume and thickness were evaluated by three-dimensional ultrasound in 40 patients one week after embryo transfer. These results were compared to serum pregnancy test performed one week later. Eighteen patients have achieved pregnancy. A significant ...
Pacchiarotti Arianna - - 2007
To evaluate the effect of the depth of embryo transfer replacement on clinical pregnancy rate. Data from a total of 104 consecutive embryo transfers performed on 104 women aged 26-37 years were prospectively collected for this study. All patients underwent a standard down regulation protocol for ovarian stimulation. Oocytes retrieval ...
Kerin John F - - 2007
OBJECTIVE: To assess the compatibility of pregnancy after IVF and ET procedures with the presence of the Essure microinsert. DESIGN: Prospective, single-arm, clinical study (Canadian Task Force classification III). SETTING: Clinical research center. PATIENT(S): Two women requesting IVF and ET procedures after Essure microinsert sterilization. INTERVENTION(S): Hysteroscopic sterilization, followed by ...
Moayeri Sharon E - - 2007
OBJECTIVE: The purpose of our study is to compare the occurrence of monozygotic twinning (MZT) from blastocyst transfer (BT) in our program between an earlier and more recent time period. DESIGN: Retrospective. SETTING: Academic IVF practice. PATIENT(S): All pregnancies conceived between March 2002 and December 2005 (N = 932) in ...
Vicdan Kubilay - - 2007
OBJECTIVE: The purpose of this study was to determine the incidence of retained embryos and its impact on pregnancy outcome in the absence of known risk factors like blood and mucus in the transfer catheter. The factors that could be associated with embryo retention were also investigated. STUDY DESIGN: The ...
Fauque Patricia - - 2007
The pregnancy outcome and the chances of birth were assessed according to embryo quality after IVF or ICSI. The implantation rate (IR), the loss of gestational sacs rate (LGSR), and birth rate (BR) were determined according to the cleavage stage and the integrity of blastomeres after day-2 homogeneous embryo transfers ...
Cho Jung-Hyun - - 2007
BACKGROUND: The etiology of cervical heterotopic pregnancy is unknown, but most are associated with assisted reproductive techniques. Various types of conservative management to save the intrauterine pregnancy have been attempted. CASE: A 35-year-old woman conceived after in vitro fertilization/embryo transfer for primary malefactor infertility. At 7(3/7) weeks of gestation, only ...
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 ...
Jelodar G A - - 2007
Endometrium of GnRH treated group resembled with pregnant group and endometrial thickness in these groups significantly increased in comparison with non-pregnant group. In GnRH treated animals, most of histomorphological changes in epithelial cells, glands and stroma of uterus was similar to pregnant group. The results revealed that mammalian form of ...
Phillips Simon J - - 2007
A total of 134 controlled natural IVF (nIVF) cycles were reviewed retrospectively and compared with 370 stimulated IVF (sIVF) cycles. The clinical pregnancy rate per embryo transfer following nIVF was 27% and 47% in sIVF cycles for patients aged less than 35. However, natural cycle patients could attempt consecutive cycles ...
Eskandar Mamdoh A - - 2007
The removal of cervical mucus during embryo transfer has been postulated to increase the pregnancy and implantation rates by not interfering with embryo implantation. Even so, this is a time-consuming procedure that may increase the incidence of difficult transfers by removing the naturally lubricant mucus. In addition, any cervical manipulations ...
Al-Khaduri Maha - - 2007
The paper gives an illustration and reminder of the risk of problems with placentation resulting from IVF and embryo transfer. Reported here is one neonatal death related to vasa praevia when the condition was not diagnosed antenatally and a neonatal survival when vasa praevia was detected antenatally. A search of ...
Ochsenbein-Kölble N - - 2007
OBJECTIVE: To track changes in olfactory performance during pregnancy and the postpartum. METHODS: In a prospective study the olfactory function of 38 pregnant women was assessed at about 12, 21, and 36 weeks of pregnancy and 7 weeks after delivery. A control group of 46 nonpregnant women were also asked ...
Stillman Robert J - - 2007
Mrs Z is a 47-year-old woman with long-standing infertility who is about to undergo in vitro fertilization (IVF) using donor oocytes from an anonymous donor. She has already undergone an IVF cycle with her own oocytes and an IVF cycle using donor oocytes from a known donor without a successful ...
Erdal Aktan, Dilek Ozer, ...
Objective: To find if the zona thinning size (in length) of the embryos transferred had any effects on the implantation and clinical pregnancy rates. Design: A prospective randomized study Setting: Infertility and Assisted Reproductive Techniques Centres. Material methods: Sixty infertile women (≥38 years old) who underwent ICSI-ET procedures and accepted ...
Hunault Claudine C - - 2007
OBJECTIVE: To evaluate the application in a different fertility clinic of a prediction model for selecting IVF patients for elective single embryo transfer. DESIGN: Retrospective analysis of a large database obtained from a tertiary infertility center. SETTING: University medical center. PATIENT(S): The model, derived at the "development center" was applied ...
Keegan Debbra A - - 2007
In a 6-year review of ectopic pregnancies (EPs) after fresh and frozen embryo transfers in IVF cycles conducted at a large university-based program, we report an overall 0.9% rate of EP that seems to have increased with the programmatic shift to routine blastocyst transfer, but remains lower than nationally reported ...
Morozov Vadim - - 2007
To compare natural vs. hormone replacement treatment (HRT) for cryo-thaw embryo transfer cycles in patients with frozen embryos from previous ART. Retrospective chart review of 164 patients (242 cycles) who underwent natural or HRT cryo-thaw embryo transfer between January 2002 and April 2005. Pregnancy rates per transfer in natural and ...
Gunby Joanne - - 2007
OBJECTIVE: To present the success rates of assisted reproductive technologies (ART) cycles performed in 2003 in Canada. This is the third annual report of outcomes compiled in the Canadian Assisted Reproductive Technologies Register. DESIGN: Prospective cohort study. SETTING: Twenty-four of 24 ART centers in Canada. PATIENT(S): Couples undergoing ART treatment ...
Chen Su-Chee - - 2007
To determine whether the use of abdominal ultrasound-guided embryo transfer improves the clinical pregnancy rate in patients undergoing in vitro fertilization, 50 fresh cycles with day 3 embryo transfer were studied; 27 patients were randomized to ultrasound-guided transfers, and 23 patients were randomized to clinical touch transfers. Although the clinical ...
Weghofer Andrea - - 2007
Prematurely declining ovarian function (PDOF) affects approximately 10% of infertile females, and has been suggested to represent a shift of the normal ovarian aging curve toward younger age. Whether women with PDOF demonstrate an increased level of aneuploidy in their embryos, based on increasing aneuploidy rates with advancing female age, ...
Kosmas I P - - 2007
BACKGROUND: Ultrasound-guided embryo transfer (ET) is widely suggested as a standard clinical practice that improves overall embryo implantation and pregnancy rates. Various studies of this issue suffer from methodological pitfalls, so that a randomized controlled trial, which overcomes these problems, might be valuable. METHODS: Three hundred women aged <40, who ...
Zech Nicolas H - - 2007
To determine the best day for the selection and transfer of a single embryo, a prospective, randomized study was undertaken that compared the ongoing pregnancy rate (PR) after single embryo transfer (SET) on day 3 with that after single blastocyst transfer (SBT) on day 5. Our results show an overall ...
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