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 ...

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 ...

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 ...

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 ...

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 ...

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 ...

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 ...

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 ...

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 ...

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 ...

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 ...

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 ...

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 ...

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 ...

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 ...

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 ...

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 ...

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 ...

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 ...

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 ...

OBJECTIVE: 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 ...

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 ...

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 ...

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 ...

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 ...

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): ...

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 ...

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 ...

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 ...

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 ...

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, ...

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 ...

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; ...

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 ...

BACKGROUND: 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 ...

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 ...

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 ...

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 ...

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. ...

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 ...

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. ...

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. ...

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 ...

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 ...

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 ...

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 ...

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 ...

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. ...

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) ...

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 ...