Search Results
Results 101 - 150 of 1965
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Thum M Y - - 2010
The development and refinement of blastocyst media in recent years has allowed embryos to be cultured in-vitro for 5 or 6 days post oocyte retrieval and has been established as an effective selection tool to aid embryo selection for IVF treatment. It is generally accepted that blastocyst culture is not ...
Gunby Joanne - - 2011
To present a report on assisted reproductive technologies (ART) cycles performed in 2007 in Canada and show trends in outcomes over time. This is the seventh annual report from the Canadian ART Register (CARTR). Prospective cohort study. Twenty-six of 26 ART centers in Canada. Couples undergoing ART treatment in Canada ...
Canu S - - 2010
To investigate whether there was a subpopulation of repeat breeders (cows or heifers that returned to oestrus after three inseminations) that were less fertile after a fourth artificial insemination (AI) with or without additional embryo transfer, and to estimate the efficacy of AI plus embryo transfer to overcome repeat breeding ...
Hamel Mélanie - - 2010
Multiple pregnancy represents an important health risk to both mother and child in fertility treatment. To reduce a high twin rate, restriction to one embryo transfer is needed. Morphological evaluation methods for predicting embryo viability has significant limitations. Tight communication exists between the follicular cells (FCs) and the oocyte; therefore, ...
Van Voorhis Bradley J - - 2010
In vitro fertilization (IVF) is an increasingly effective and popular means of achieving pregnancy for infertile women, but contributes to a growing incidence of risky twin pregnancies. Despite studies demonstrating cost-effective means to achieve IVF pregnancy while strictly limiting the number of embryos transferred, multiple-embryo transfer remains the most common ...
Zhang John - - 2010
Gentle ovarian stimulation protocols, such as 'mini-IVF', have several potential advantages over conventional IVF protocols, including less medication and fewer injections, producing fewer eggs, but eggs of higher quality. The particular 'mild' stimulation protocol called 'mini-IVF' is described. This protocol requires a reliable and cheap method for embryo cryopreservation such ...
Urman Bulent - - 2010
The Ministry of Health of Turkey has just passed a new legislation on assisted reproduction techniques. The new legislation covers significant changes in the regulation of opening new assisted reproduction treatment centres, funding of the treatment, number of embryos to be transferred, cryopreservation and donation. It takes a brave step ...
Bjuresten Kerstin - - 2011
To see if progesterone support has a beneficial effect on live birth rate after frozen embryo transfer in natural cycles. Prospective randomized controlled trial. University-based hospital. Four hundred thirty-five women undergoing embryo transfer in natural cycles. The women received either vaginal progesterone, 400 mg twice a day from the day ...
de Oliveira Vanessa Silvestre Ferreira - - 2010
Neosporosis is considered to be one of the main causes of abortions in bovines. In this study we evaluated the congenital transmission and occurrence of abortions by Neospora caninum in an embryo transfer center in Neropolis, Goiás. Serological samples from 101 recipients, 61 donors, and 90 calves were analyzed. Among ...
El-Toukhy Tarek - - 2010
New emerging evidence from clinical trials demonstrates that acupuncture performed at the time of embryo transfer does not improve the pregnancy or live birth outcome after treatment. This evidence raises questions regarding the futility of conducting further research in this area and the quality of evidence needed before any specific ...
Clua Elisabet - - 2010
The aim of this study is to identify the factors associated with multiple pregnancy in an oocyte donation programme. A retrospective study (2000-2007) of 945 synchronous cycles was performed. Two embryos were transferred in all cycles on day 2 after oocyte retrieval. All variables (egg donor and recipient age, number ...
van Loendersloot L L - - 2010
Various models have been developed for the prediction of pregnancy after in vitro fertilization (IVF). These models differ from one another in the predictors they include. We performed a systematic review and meta-analysis to identify the most relevant predictors for success in IVF. We systematically searched MEDLINE and EMBASE for ...
Tomaževič T - - 2010
A retrospective matched-control study to evaluate the effect of uterine anomalies on pregnancy rates after 2481 embryo transfers in conventionally stimulated IVF/intracytoplasmic sperm injection (ICSI) cycles. The study group of 289 embryo transfers before and 538 embryo transfers following hysteroscopic resection of a uterine septum was compared with two consecutive ...
Delle Piane L - - 2010
Abnormal placentation is a potential mechanism to explain the increased incidence of low birthweight observed after IVF. This study evaluates, in a mouse model, whether the method of conception and embryo transfer affect placentation and fetal development. IVF blastocysts (CF1 x B6D2F1/J) were cultured in Whitten's medium (IVF(WM), n = ...
de Mouzon J - - 2010
In this 10th European IVF-monitoring (EIM) report, the results of assisted reproductive techniques from treatments initiated in Europe during 2006 are presented. Data were mainly collected from existing national registers. From 32 countries, 998 clinics reported 458 759 treatment cycles including: IVF (117 318), ICSI (232 844), frozen embryo replacement ...
Cabello Y - - 2010
The multiple pregnancy rate in assisted reproduction treatment cycles depends, fundamentally, on the number of embryos transferred. It is essential that patients and professionals should have good practical guidelines on the best number of embryos to be transferred in each cycle in order to obtain high pregnancy rates with minimal ...
Sunkara Sesh Kamal - - 2010
There are conflicting results on whether the rate of blastocyst development before freezing influences the outcome of frozen-thawed blastocyst transfers. We conducted a systematic review and meta-analysis of controlled studies to compare pregnancy outcomes following transfer of thawed blastocysts that were frozen either on Day 5 or Day 6 following ...
Wang Yueping Alex - - 2010
The practice of single embryo transfer (SET) is highly accepted by clinicians in Australia. This study investigates whether the SET of blastocysts results in optimal perinatal outcomes. This retrospective population-based study included 34 035 single or double embryo transfer cycles in women who had their first fresh autologous treatment in ...
Ata Baris - - 2010
PURPOSE OF REVIEW: To give an overview of the economic aspects of assisted reproductive technologies (ART) and assess the implications of economic factors for utilization and practice of ART. RECENT FINDINGS: The out-of-pocket expenses for the couple seem to be the key determinant of ART utilization. Countries with reimbursement plans, ...
Bahtiyar Mert Ozan - - 2010
OBJECTIVE: We investigated the prenatal prevalence of congenital heart defects (CHDs) among in vitro fertilization (IVF) pregnancies at a referral program in the United States. METHODS: Study patients were referred for fetal echocardiography between April 1, 2006, and May 1, 2009, due to IVF. An IVF pregnancy was defined as ...
Chang Hye Jin - - 2010
PURPOSE OF REVIEW: This review discusses recent publications that investigate risk factors associated with ectopic pregnancy after IVF. RECENT FINDINGS: Data on the risk factors for developing ectopic pregnancy after IVF are still inconsistent. Between fresh nondonor IVF and embryo transfer cycles, the significant risk factor for ectopic pregnancy was ...
Liu Feng-hua - - 2010
A unique case is reported of a quadruple gestation (monochorionic quadramniotic quadruplets) after in vitro fertilization (IVF) and the transfer of two embryos. On the ninth week of pregnancy, a transvaginal sonogram revealed that there was no heart beat in any of the fetuses. Uterine curettage was then performed. The ...
Sills Eric Scott - - 2010
PURPOSE: The impact of the advanced reproductive technologies on multiple gestation has been well documented in several large populations, but only infrequently in smaller countries, where its effects may be different. This study estimated domestic in vitro fertilisation (IVF) use and multiple gestation rate in Ireland based on two data-reporting ...
Madani Tahereh - - 2010
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 after embryo transfer. The implantation and clinical pregnancy rates were statistically significantly higher in the study ...
Afifi Khaled - - 2010
The aim of this systematic review is to evaluate the evidence for the impact of polypectomy on fecundity, implantation and live birth rates in women who are trying to conceive spontaneously or by assisted conception. A literature search was performed to identify all controlled studies that compared the effects of ...
Farhi Jacob - - 2010
The study was designed to evaluate the isolated effect of high serum oestradiol concentration on human chorionic gonadotrophin (HCG) day in IVF cycles on endometrial receptivity and placentation. A retrospective cohort included all women attending the IVF unit in 2006 and 2007, with the best prognosis to achieve pregnancy: age ...
Al-Inany Hesham G - - 2010
Recent randomized trials, systematic reviews and cost-effectiveness analyses have demonstrated the relative efficacy,and in some cases superiority, of urinary gonadotrophins (uFSH, human menopausal gonadotrophin) compared with recombinant FSH (rFSH). However, the effectiveness of frozen-embryo transfers (FET) following ovarian stimulation with uFSH versus rFSH in the fresh cycle has not been ...
Pribenszky Csaba - - 2010
Appropriate selection of a single blastocyst for transfer decreases the risk of multiple gestations. By using a compact time-lapse microscope system placed inside a regular incubator, combined with a microwell embryo culture dish, the development of all the embryos from a patient was continuously monitored by obtaining images at 10 ...
Mains Lindsay - - 2010
To review currently available literature on various technical aspects of the ET procedure. Publications related to ET technique were identified using PubMed and Medline. Numerous technical aspects of the ET procedure have been studied to determine their effect on pregnancy outcome. Although much of the published data that evaluates these ...
Moraloglu Ozlem - - 2010
This report aimed to examine the effects of atosiban on pregnancy outcome after IVF-embryo transfer. A prospective, randomized, placebo-controlled clinical study was performed. A total of 180 women undergoing intracytoplasmic sperm injection who had top-quality embryos were randomly allocated into treatment and control groups. All the patients had infertility due ...
Alarcón Marco A - - 2010
The objective of this study was to determine if the technique of embryo transfer in cattle can be commercially feasible in a region situated in the humid tropics of Mexico. Twenty-six Bos taurus and twenty-six Bos indicus cows were estrous synchronized and superovulated to obtain a total of 80 embryos ...
Aflatoonian Abbas A Research and Clinical Center for Infertility, Department of Obstetrics and Gynecology, Shahid Sadoughi University of Medical Science, Safaieh, Yazd, Iran. - - 2010
Controlled ovarian hyperstimulation has been shown to advance endometrial maturation and adversely affects implantation in ART. It has been reported that there is a better embryo-endometrium synchrony in frozen-thawed embryo transfer cycles than fresh embryo transfer cycles. The objective of this study was to compare ongoing pregnancy rates between fresh ...
Al-Turki Haifa A - - 2010
OBJECTIVE: King Fahd University Hospital, Al-Khobar is a tertiary care center without the facility for in-vitro fertilization (IVF) and embryo transfer, but ovulation induction (OI) is done routinely. The objective of this analysis was to study the obstetric outcome of patients who conceived after IVF and OI. DESIGN: Retrospective analysis. ...
Porat Natalie - - 2010
Ultrasound-guided embryo transfer appears to improve overall pregnancy outcomes for in vitro fertilization embryo transfer cycles. Most reports are done using a transabdominal ultrasound-guided approach, in contrast to a transvaginal ultrasound, which does not require a full bladder. We sought to determine if either approach was better with respect to ...
Porat Natalie - - 2010
Using oocyte donation cycles as an ideal model, we sought to compare pregnancy and implantation rates in cleavage stage (day 3) versus blastocyst stage (day 6) embryo transfers (ET); assess the predictive value of blastocyst formation rates based on cleavage cell stage and morphology grade; and evaluate the ability to ...
Min Jason K - - 2010
OBJECTIVE: To review the effect of elective single embryo transfer (eSET) compared with double embryo transfer (DET) following in vitro fertilization (IVF), and to provide guidelines on the use of eSET in order to optimize live birth rates and minimize twin pregnancies. OPTIONS: Rates of live birth, clinical pregnancy, and ...
Kotze Dirk J - - 2010
To compare pregnancy and implantation rates when embryos are selected based on a single Day 3 (D 3) morphology score vs. a GES score plus sHLA-G expression. A prospective randomized study (n = 214) undergoing fresh ICSI cycles. Embryos were selected for transfer based on either Day 3 morphology score ...
Mackie Ogilvie Caroline - - 2010
OBJECTIVE: To demonstrate the feasibility of establishing a successful pregnancy for a carrier of a balanced Y;autosome translocation. DESIGN: Four locus-specific fluorescence in situ hybridization (FISH) probes, informative for the translocation, were identified and tested on peripheral lymphocyte metaphase chromosomes and interphase preparations from the translocation carrier and his partner. ...
Majumder Kingshuk - - 2010
OBJECTIVE: To investigate whether anti-Müllerian hormone (AMH) is better than antral follicle count (AFC) in predicting oocyte yield and embryo quality after controlled ovarian hyperstimulation for in vitro fertilization (IVF). STUDY DESIGN: This is a prospective observational study involving 162 women (<40 years old) undergoing their first IVF cycle at ...
Duran E H - - 2010
This study assessed the influence of the age of the male partner on the outcome of oocyte donation cycles. A total of 408 couples participating in 519 consecutive anonymous oocyte donation cycles were examined. Main outcome measures were fertilization rate, embryo quality, clinical pregnancy, implantation, miscarriage and live birth rates, ...
Katayama K Paul - - 2010
Direct transcervical transfer of spermatozoa and oocytes to the uterine cavity has been carried out in the past. This procedure could be a more appropriate approach than IVF for some anovulatory patients who require gonadotrophin stimulation, since the number of oocytes could be limited, thus reducing the occurrence of multiple ...
So Emily Wing Sze - - 2010
The role of acupuncture on the pregnancy rate has not been evaluated in frozen-thawed embryo transfer (FET) cycles. This randomized double-blind study aimed to determine whether acupuncture performed on the day of FET improves clinical outcomes. On the day of FET, 226 patients were randomly allocated to either real or ...
Jaśkowski Jedrzej M - - 2010
The influence of passage time of the transfer gun through the uterine cervix and body to the embryo insertion site on pregnancy rate was analysed in 248 recipient heifers (mean age: 15-17 months). Embryos (90 fresh and/or 88 and 70 frozen in glycerol and ethylene glycol, respectively, grades 4 and ...
Hirth Ronald - - 2010
OBJECTIVE: To determine the pregnancy rates of microtubal reanastomosis (MTR) and any associated clinical variables, to determine pregnancy rates and live birth rates of MTR as compared to in vitro fertilization (IVF) and to study the rates of ectopic pregnancy and spontaneous abortion (SAB) after MTR. STUDY DESIGN: Retrospective chart ...
Leese Brenda - - 2010
The problems associated with twin and higher order pregnancies have assumed major importance, with international debate about multiple pregnancy; the single biggest risk with in vitro fertilisation (IVF). We have critically reviewed published papers on female patients' and their partners' views of single embryo transfer (SET) and twin or higher ...
Wagman Israel - - 2010
OBJECTIVE: To assess the endometrial thickness, hormonal status and pregnancy rates with clomiphene citrate (CC) vs. letrozole in frozen-thawed embryo transfer protocols. STUDY DESIGN: Nineteen patients who had previously undergone in vitro fertilization (IVF) with embryo cryopreservation were prospectively and randomly enrolled in a randomized, controlled trial. Nine patients were ...
Lin Pin-Yao - - 2010
OBJECTIVE: To compare the sex ratio of offspring born after cleavage stage embryo transfer and blastocyst transfer. MATERIALS AND METHODS: In this retrospective study of embryo transfer (ET), we included 473 offspring from 446 deliveries during the period January 2002 to December 2007. Statistical analysis was performed on the sex ...
De Neubourg D - - 2010
The only way to decrease the incidence of multiple pregnancies in the IVF/intracytoplasmic sperm injection (ICSI) population is to introduce single-embryo transfer (SET). This study investigated the impact of the progressive introduction of SET for the whole IVF/ICSI population from the patients' point of view by calculating the cumulative live-birth ...
Desai Nina - - 2010
Human embryo vitrification is a promising new technology but clinical outcome data is needed to gauge its effectiveness and safety. While pregnancy and live-birth data is available for blastocyst vitrification, such information is lacking for human embryo vitrification at the 6- to 8-cell stage. The current work presents clinical and ...
Marina S - - 2010
BACKGROUND: We herein present the initial experiences of the CEFER Institute of Reproduction in the formation of a new family model: two biological mothers, lesbians, one who provides the eggs and the other who carries the embryo in her womb. We have called this family model ROPA (Reception of Oocytes ...
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