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Check J H - - 2010
To determine if fertilization by conventional oocyte insemination vs intracytoplasmic sperm injection (ICSI) causes any difference in the maximum number of blastomeres of fresh or frozen thawed embryos transferred. Retrospective evaluation of all in vitro fertilization (IVF) cycles over a 10-year period in cycles having a 2 embryos transferred where ...
Check J H - - 2010
To determine the effect of the presence of endometriosis on the delivered pregnancy rate following in vitro fertilization-embryo transfer. A retrospective cohort analysis of fresh or frozen embryo transfer in women with diminished egg reserve having IVF-ET and who also had had a laparoscopy. The data was analyzed as to ...
Sills Eric Scott - - 2010
This investigation describes features of patients undergoing in vitro fertilisation (IVF) and embryo transfer (ET) where both gametes were obtained from anonymous donors. Gamete unsuitability or loss was confirmed in both members of seven otherwise healthy couples presenting for reproductive endocrinology consultation over a 12-month interval in Ireland. IVF was ...
Tatpati Laura L - - 2010
Cryopreservation of all embryos in stimulated IVF cycles is occasionally necessary. Although it is known that frozen embryo transfer results in lower live birth rates per transfer, there is limited information regarding expected cumulative live birth rates for patients who are in this particular scenario. The objective was to evaluate ...
Agha-Hosseini M - - 2010
We carried out a prospective randomized trial on 220 couples with nontubal factor infertility to compare pregnancy rates and implantation rates after zygote intrafallopian transfer (ZIFT) and uterine embryo transfer (UET). The zygote was transferred by laparoscopy into the fallopian tube 24 hours after oocyst retrieval. UET was performed 72 ...
Check J H - - 2010
To evaluate uterine senescence by comparing pregnancy rates in older recipients vs their younger donors who were actually trying to conceive themselves. A retrospective analysis comparing clinical and delivered pregnancy rates in all infertile donors < or = age 35 sharing their eggs with a recipient age > or = ...
Hansen Peter J - - 2010
One limitation to the use of in vitro-produced embryos in cattle production systems is the fact that pregnancy rates after transfer to recipients are typically lower than when embryos produced in vivo are transferred. Conceptually, the oocyte and spermatozoon from which the embryo is derived could affect competence for post-transfer ...
Milne P - - 2010
Multiple pregnancy is a major complication of IVF and is associated with increased maternal, fetal and neonatal morbidity. Elective single embryo transfer (eSET) during IVF, rather than the more standard transfer of two embryos (double embryo transfer or DET), has been shown to significantly reduce the multiple pregnancy rate associated ...
Check J H - - 2010
PURPOSE: To determine if fertilization by intracytoplasmic sperm injection (ICSI) lowers pregnancy rates following frozen embryo transfer compared to conventional insemination similar to findings with fresh embryo transfer. METHODS: Clinical and live delivered pregnancy and implantation rates were compared according to whether the eggs were fertilized by conventional oocyte insemination ...
Check J H - - 2010
To determine if longer storage of embryos in a cryopreserved state negatively affects the chance of successful implantation following thawing and transfer. A retrospective cohort analysis of frozen-thawed embryos that had been donated to recipients. Four time periods were evaluated. No significant decrease in pregnancy or implantation rates was found ...
Summers-Chase D - - 2010
To describe a modification of a simplified freezing protocol for the cryopreservation of blastocysts. 1.5 M glycerol was substituted as a cryoprotectant instead of propanediol. There was a survival rate of 59.1% (13/22) with three live deliveries in seven transfers (42.9% per transfer). The implantation rate was 28.6% (4/14). This ...
Chen Shi-Ling - - 2010
To evaluate the combined effect of endometrial thickness and pattern on clinical outcome in patients undergoing in vitro fertilization/intracytoplasmic sperm injection and embryo transfer (IVF/ICSI-ET). Cycles of IVF/ICSI-ET conducted between January 2003 and December 2008 at a university-based reproductive center were reviewed retrospectively. Endometrial ultrasonographic characteristics were recorded on the ...
Al-Inany Hesham - - 2010
To determine whether there is a difference in outcome between different ovulation-induced cycles after frozen-thawed embryo transfer (FET). We searched the Cochrane Menstrual Disorders and Subfertility Group's trials register in May 2009, the Cochrane Central Register of Controlled Trials (Cochrane Library, Issue 1, 2008), ISI Web of Knowledge (1985 to ...
Check J H - - 2010
To determine if controlled ovarian hyperstimulation (COH) regimens using the gonadotropin releasing hormone (GnRH) agonist leuprolide acetate result in higher pregnancy and implantation rates than COH regimens using the GnRH antagonists cetrorelix or ganirelix following fresh and frozen embryo transfer. Retrospective analysis was performed evaluating the pregnancy rates with the ...
Brown Julie - - 2010
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 lack of good quality embryo/s, lack of uterine receptivity, or the transfer technique itself. Numerous methods, including the use of ultrasound guidance for proper catheter ...
Baruselli Pietro S PS Departamento de Reprodução Animal, FMVZ-USP, CEP 05508-000 São Paulo, Brazil. - - 2010
Numerous studies have shown that it is possible to manipulate follicular and luteal dynamics, thereby eliminating the need for oestrus detection in embryo transfer (ET) programmes. Fixed-time ET (FTET) protocols are based on the use of gonadotrophin-releasing hormone (GnRH) and prostaglandin (PG) F or progesterone/progestogen (P4)-releasing devices and oestradiol. The ...
Bontekoe Stephan S University of Amsterdam, Amsterdam, - - 2010
In order to increase the success rate of assisted reproductive technologies (ART), adherence compounds such as hyaluronic acid and fibrin sealant have been introduced into subfertility management. Adherence compounds are added to the embryo transfer medium in order to increase the likelihood of embryo implantation, with the potential for higher ...
Tiras Bulent - - 2010
OBJECTIVE: To investigate the impact of embryo replacement depth on IVF and embryo transfer outcomes. DESIGN: Retrospective analysis (May 2005 to November 2008) of 5,055 ultrasound-guided embryo transfers belonging to 3,930 infertile couples. The distance between the fundal endometrial surface and the catheter tip was measured and accordingly, patients were ...
Bender F - - 2010
First-trimester serum markers in 110 in-vitro fertilization (IVF) and 331 intracytoplasmatic sperm injection (ICSI) pregnancies were compared with 1431 pregnancies with spontaneous conception. Alterations of serum markers were evaluated with respect to small-for-gestational-age (SGA) growth and number of embryos transferred. For pregnancy-associated plasma protein A (PAPP-A), significantly lower concentrations were ...
Balk Judith - - 2010
The aim of this paper was to determine the effect of acupuncture on perceived stress levels in women on the day of embryo transfer (ET), and to determine if perceived stress levels at embryo transfer correlated with pregnancy rates. The study was an observational, prospective, cohort study based at the ...
Yeung William S B - - 2009
OBJECTIVE: To review the outcomes of frozen-thawed embryo transfer cycles. DESIGN. Retrospective review. SETTING: Tertiary assisted reproduction centre, Hong Kong. PATIENTS: Subfertile patients undergoing frozen-thawed embryo transfer between July 2005 and December 2007. MAIN OUTCOME MEASURES: Clinical and ongoing pregnancy rates. RESULTS: A total of 983 frozen-thawed embryo transfer cycles ...
Wang Li-Jung - - 2009
OBJECTIVE: To compare the efficacy of two vaginal progesterone formulations, Crinone gel and Utrogestan capsules, for luteal phase support in blastocyst stage embryo transfers. MATERIALS AND METHODS: We analyzed 460 consecutive cycles in patients undergoing in vitro fertilization/intracytoplasmic sperm injection (IVF/ICSI)-blastocyst transfer (BT) treatment at our institution between January 2004 ...
Kuzel David - - 2010
OBJECTIVE: To describe a case of successful pregnancy after IVF-ET in a patient with previous thermal ablation of the endometrium by uterine balloon therapy (UBT). DESIGN: Case report. SETTING: University hospital. PATIENT(S): Polymorbid patient who received UBT and became pregnant after IVF-ET. INTERVENTION(S): UBT, IVF-ET, and caesarean section. RESULT(S): After ...
Hambiliki Fredwell - - 2010
OBJECTIVE: To investigate the efficacy of hyaluronan-enriched transfer media in cleavage-stage frozen embryo transfer cycles. DESIGN: Two commercially available transfer media were prospectively compared in an observational study. SETTING: Hospital-based in vitro fertilization clinic. PATIENT(S): Patients (n = 425) undergoing frozen-thawed embryo transfer (FET). The embryos transferred were included in ...
Valojerdi Mojtaba Rezazadeh - - 2010
The aim of this study was to determine if laser zona thinning could improve the rates of pregnancy and implantation for vitrified-warmed embryo transfer at the cleavage stage. A total of 400 vitrified-warmed embryo transfer cycles were randomly assigned to either the test group or the control group. The zona ...
Tertti Kristiina - - 2010
OBJECTIVES: Our aim was to investigate the mode of placental transfer of metformin in term human placenta with special reference to involvement of the organic cation transporters (OCTs). STUDY DESIGN: Twenty-nine placentas were obtained after delivery and a 2-h non-recirculating perfusion of a single placental cotyledon was performed to study ...
Madani Tahereh - - 2009
An appropriate and easy embryo transfer has a direct impact on pregnancy rates. Proper evaluation of the uterocervical axis and uterine depth are necessary for suitable embryo transfer. The aim of this study was to assess the appropriate time for cervical axis evaluation and uterine measurement. A total of 124 ...
Bosser Roser - - 2009
The FIVCAT. NET database in Catalonia is the only official obligatory registry of human assisted reproduction practitioners in Spain. The present study assessed the effectiveness and outcomes of assisted reproduction over the period 2001-2005 relative to other established worldwide registries. The data analysed were derived from all centres conducting assisted ...
Aanesen Arthur - - 2010
Modified natural cycle IVF (mnc-IVF) or mild IVF (m-IVF) was offered to selected patients between 1996 and 2007; 43 patients during 129 cycles were treated with mnc-IVF and 145 couples during 250 cycles were treated with m-IVF. Comparison with outcome from conventional IVF cycles during the same time period and ...
Baker Valerie L - - 2010
OBJECTIVE: To compare a US clinical trial of gonadotropin therapy for IVF with a similar European trial to determine what factors may explain the higher clinical pregnancy rate in the US trial. DESIGN: Comparison of baseline, treatment, and outcome variables in the United States (US) and European trials. SETTING: IVF ...
Moragianni Vasiliki A - - 2010
The optimal developmental stage for cryopreserving embryos in IVF-ET remains controversial. Our study demonstrates that besides an improvement in postthaw survival rate for day-1 and blastocyst cryopreserved ET over day-3, all three groups attained statistically similar implantation, clinical pregnancy, multiple, twinning, and male gender rates.
Wani Nisar A - - 2010
In this study, we demonstrate the use of somatic cell nuclear transfer to produce the first cloned camelid, a dromedary camel (Camelus dromedarius) belonging to the family Camelidae. Donor karyoplasts were obtained from adult skin fibroblasts, cumulus cells, or fetal fibroblasts, and in vivo-matured oocytes, obtained from preovulatory follicles of ...
Yoldemir Tevfik - - 2009
BACKGROUND: Women who have a high estradiol level on the day of human chorionic gonadotropin injection are considered to have their in vitro fertilisation treatments compromised. How this really affects the pregnancy rates needs to be questioned. AIM: To determine if elevated serum estradiol levels on the day of human ...
Dal Prato Luca - - 2009
Two hundred women aged between 28 and 43 years, with infertility from tubal, male, endometriosis or unexplained factor were randomly allocated into treatment (100 patients) and control (100 patients) groups. On the day after oocyte retrieval, each patient began supplementation with progesterone 8% vaginal gel, once daily. The patients in ...
Yap Christine - - 2009
INTRODUCTION: We report the fi rst successful preimplantation genetic diagnosis (PGD) for Hb Bart's hydrops fetalis in Singapore, involving both fresh and frozen embryo replacement cycles. CLINICAL PICTURE: Two couples who were carriers of the Southeast Asian type double gene deletion (--(SEA) deletion carriers) requested for PGD. Couple A had ...
Fang Cong - - 2010
OBJECTIVE: To determine whether a new assisted hatching (AH) method increases the implantation and clinical pregnancy rates of frozen-thawed day-3 (D3) embryos. DESIGN: Prospective study. SETTING: A university hospital in vitro fertilization (IVF) program. PATIENT(S): Patients who had their first IVF/intracytoplasmic sperm injection (ICSI) cycles between June 1, 2006, and ...
Baker Valerie L - - 2010
OBJECTIVE: To evaluate factors predictive of clinical pregnancy and of pregnancy loss from assisted reproductive technology (ART) using data from the Society for Assisted Reproductive Technology database for 2004-2006. DESIGN: Retrospective cohort. SETTING: Clinic-based data. PATIENT(S): The study population included 225,889 fresh embryo transfer cycles using autologous oocytes and partner ...
Zhou Feng - - 2009
BACKGROUND: Frozen-thawed embryo transfer (FET) is the most common way to prevent serious late ovarian hyperstimulation syndrome and increase the cumulative pregnancy rate. We evaluated the effectiveness of an FET program for improving the embryo implantation and clinical pregnancy rates, and ultimate embryo utilization rate in infertility treatment. METHODS: Patients ...
Dessolle Lionel - - 2009
BACKGROUND: Conflicting results have been published about the determinants of pregnancy after oocyte donation (OD). We used the OD model to determine predictive factors of pregnancy in the recipient after frozen-thawed embryo transfer (FTET) in a specific series where all the embryos were cryopreserved without any prior selection for fresh ...
Repiská Vanda - - 2009
BACKGROUND: It is well known that the frequency of multiple gestation increases after in vitro fertilization in which more than one embryo is transferred. The aim is to report an octuplet pregnancy following intracytoplasmic sperm injection and cryo embryo transfer. CASE REPORT: A 31-year-old woman and her 35-year-old husband, both ...
Givens Carolyn R - - 2009
The study compares outcomes for patients with frozen embryos who had frozen-thawed embryo transfer (FET) timed to their natural ovulation cycle versus cycles in which endometrial timing was programmed with oestrogen and progesterone. A total of 1205 patients undergoing 1677 FET cycles between 1 January 2000 and 31 December 2006 ...
Hiraoka Kenichiro - - 2009
The aim of this study was to determine if the size of zona pellucida thinning area by laser assisted hatching could affect the rates of pregnancy and implantation for vitrified-warmed embryo transfers at the cleavage-stage. A total of 120 vitrified-warmed cleavage-stage embryo transfers were randomly assigned to either quarter or ...
Grace Kristen S - - 2009
Live birthrates following assisted reproduction account for 1 to 3% of pregnancies in developed countries, and these figures seem set to rise. Concerns regarding the safe use of assisted reproductive technology (ART) for the treatment of infertility have been voiced for several years, yet, to date, the vast majority of ...
Patchava S - - 2009
Delaying conception has increased the demand on assisted reproduction. Currently, more than 1% of children are conceived through assisted reproductive technologies (ART) worldwide and this number is likely to continue increasing. Like any other medical intervention ART is associated with both short-term and long-term complications. The major short-term complications include ...
Kido Aki - - 2009
BACKGROUND: Uterine peristalsis, which is influenced by hormonal and cholinergic effects, may have a role in successful implantation and continuing pregnancy. CASES: We encountered abnormal uterine peristalsis in three women who had had repeated in vitro fertilization (IVF) treatment failures. They subsequently had successful pregnancies when hyoscine bromide was administered ...
Fu Jing - - 2009
To observe whether early cleavage can be a predictor of embryo developmental potential, pregnancy and implantation rates. A total of 9,544 embryos in 1,095 in vitro fertilization or intracytoplasmic sperm injection cycles were observed with regard to the appearance of early cleavage at 25-29 h post-insemination. A significantly higher proportion ...
Perin Paulo Marcelo - - 2010
The objective of this retrospective cohort study was to assess the potential effects of preconceptional short-term exposure to particulate air pollution in a real-world situation on pregnancy outcome in infertile women evaluating the possible role of IVF/embryo transfer treatment on this outcome using women who had conceived naturally for the ...
Hong Seung Wook - - 2009
We conducted a retrospective review of all frozen ETs from May 2002 to October 2007 using our new vitrification technique in order to determine its efficacy. We found high pregnancy (70.5%; 79/112) and implantation (40.6%; 110/271) rates with the use of this new method.
Krieg Sacha A - - 2009
OBJECTIVE: To report a case of successful pregnancy after trophectoderm biopsy and fluorescence in situ hybridization (FISH) revealed a tetraploid karyotype. DESIGN: Case report. SETTING: A university medical center. PATIENT(S): An infertility patient desiring trophectoderm biopsy on frozen blastocysts to facilitate preimplantation genetic screening. INTERVENTION(S): Frozen blastocysts were thawed on ...
Hiraoka Kenichiro - - 2009
PURPOSE: To report a successful delivery after the transfer of a re-cryopreserved day-7 hatched blastocyst. METHODS AND RESULTS: A 30-year-old woman underwent a long-treatment protocol for ovarian stimulation. Fourteen mature oocytes were obtained, and twelve were fertilized. On day 3, two cleaved embryos were transferred, but no implantation occurred. The ...
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