http://medicalxpress.com/ en-us Medical Xpress internet news portal provides the latest news on Health and Medicine. (HealthDay)—Among women who undergo in vitro fertilization (IVF) to become pregnant, there is no difference in delivery rates among those implanted with one prescreened embryo compared to those implanted with two unscreened embryos, new study findings reveal. http://medicalxpress.com/news/2013-05-birth-good-implanting-embryo.html Obstetrics & gynaecology Wed, 08 May 2013 18:22:55 EST news287256156 Massachusetts General Hospital (MGH) researchers have identified what may be a major factor behind the increased risk of two adverse outcomes in pregnancies conceived through in vitro fertilization (IVF). Two papers published in the journal Fertility and Sterility support the hypothesis that extremely high estrogen levels at the time of embryo transfer increase the risk that infants will be born small for their gestational age and the risk of preeclampsia, a dangerous condition that can threaten the lives of both mother and child. They also outline a protocol that reduced those risks in a small group of patients. http://medicalxpress.com/news/2013-02-extremely-high-estrogen-underlie-complications.html Obstetrics & gynaecology Mon, 25 Feb 2013 13:03:40 EST news281019802 (Medical Xpress)—Stanford University School of Medicine researchers have devised a two-part approach to identify developing human embryos most likely to result in successful pregnancies. The technique could transform the lives of infertile couples seeking to use in vitro fertilization, or IVF, to start a family. http://medicalxpress.com/news/2012-12-embryo-analysis-technique-boost-vitro-fertilization.html Obstetrics & gynaecology Wed, 05 Dec 2012 08:26:55 EST news273918391 A policy of single embryo transfer (SET) reduces the risk of perinatal mortality in infants born as a result of IVF and ICSI. The conclusion emerged from an analysis of more than 50,000 births recorded in the Australian and New Zealand Assisted Reproduction Technology Database between 2004 and 2008, where the introduction of an SET policy has been associated with a reduction in overall perinatal mortality for IVF and ICSI babies. http://medicalxpress.com/news/2012-07-embryo-perinatal-mortality-ivf.html Obstetrics & gynaecology Wed, 04 Jul 2012 03:47:27 EST news260592441 There is growing interest in a "freeze-all" embryo policy in IVF. Such an approach, which cryopreserves all embryos generated in a stimulated IVF cycle for later transfer in a non-stimulated natural cycle, would avoid any of the adverse effects which ovarian stimulation might have on endometrial receptivity during the treatment cycle. Ovarian stimulation has been shown to have adverse effects on endometrial receptivity and the risk of ovarian hyperstimulation syndrome (OHSS) is also increased when embryo transfer is performed in the stimulated cycle. http://medicalxpress.com/news/2012-07-embryos-ivf-non-stimulated-outcome.html Obstetrics & gynaecology Wed, 04 Jul 2012 03:36:14 EST news260591738 Preimplantation genetic diagnosis (PGD) for the breast cancer genes BRCA1/2 is now feasible and established, with good success rates for those treated, according to investigators from the reproduction, oncology and genetics centres of the university hospitals of Maastricht and Brussels. The results follow a review of the largest number of PGD treatments for BRCA1/2 in Europe and were presented today at the annual meeting of ESHRE (European Society of Human Reproduction and Embryology) by Professor Willem Verpoest from the Centre for Reproductive Medicine at Vrije Universiteit Brussel, Belgium. http://medicalxpress.com/news/2012-07-hereditary-breast-ovarian-cancer-pgd.html Cancer Mon, 02 Jul 2012 04:10:27 EST news260421020 (HealthDay) -- Screening embryos produced by in vitro fertilization using array comparative genomic hybridization (aCGH) plus morphology improves pregnancy rates over screening by morphology alone in single embryo transfers, according to a study published online May 2 in Molecular Cytogenetics. http://medicalxpress.com/news/2012-05-chromosomal-screening-ivf-pregnancy.html Genetics Wed, 09 May 2012 13:40:01 EST news255786911 A University of Adelaide study has identified the risk of major birth defects associated with different types of assisted reproductive technology. http://medicalxpress.com/news/2012-05-higher-birth-defects-reproduction.html Obstetrics & gynaecology Sun, 06 May 2012 07:24:07 EST news255507814 Scientists at University College Dublin have discovered a new way of measuring the potential success rate of an embryo before it is transferred back into the womb during in vitro fertilisation (IVF). http://medicalxpress.com/news/2012-02-successful-ivf-embryos-scientists.html Obstetrics & gynaecology Wed, 29 Feb 2012 10:10:14 EST news249732608 A new study of fertility treatment found that women who get three or more embryos have no better odds of having a baby than those who get just two embryos. http://medicalxpress.com/news/2012-01-odds-embryos-ivf.html Other Thu, 12 Jan 2012 03:40:02 EST news245560990 Elsevier announced the publication of several commentaries in the scientific journal Reproductive BioMedicine Online on the subject of how many embryos it is safe and proper to place in a uterus, and how best to regulate this decision. It is a dilemma faced by all patients anxiously caught between no pregnancies at all or facing the prospect of twins or triplets. In this difficult place it is often all too easy to think that the latter option must be the best. But is it? http://medicalxpress.com/news/2011-07-ivf-treatment-multiple-births-free-market.html Other Tue, 26 Jul 2011 10:39:23 EST news230895542 Two studies from France and Denmark have shown that children born after frozen embryo transfer are larger and heavier. The risk for a baby to be too heavy for its gestational age at birth is increased 1.6 fold compared to IVF children from fresh embryo transfer and 1.5 fold compared to naturally conceived children, the 27th Annual Meeting of the European Society of Human Reproduction and Embryology will hear Wednesday. http://medicalxpress.com/news/2011-07-frozen-embryo-larger-heavier-babies.html Health Tue, 05 Jul 2011 19:01:34 EST news229111246 Further evidence of how maternal characteristics can influence the development of children born after in vitro fertilization was presented to the annual conference of the European Society of Human Fertilization and Embryology today. A study of all 8941 IVF children born in Sweden between 2002 and 2006 where only one baby was born as a result of a single pregnancy showed that maternal age, primiparity, smoking, maternal infertility and body mass index, both over and underweight, were associated with an adverse perinatal outcome. http://medicalxpress.com/news/2011-07-factors-affecting-obstetric-outcomes-ivf.html Other Tue, 05 Jul 2011 10:30:18 EST news229080578 (PhysOrg.com) -- The findings of a study led by the University of Aberdeen could put IVF treatment 'on a more equal footing' with chronic diseases when it comes to making decisions about the cost effectiveness of treatment options. http://medicalxpress.com/news/2011-04-age-cost-effectiveness-ivf-treatment-options.html Medical research Tue, 12 Apr 2011 09:37:59 EST news221819832