BACKGROUND There has been increasing number of pregnancies following assisted reproductive technology treatment and their survival is understandably a matter of interest. The relative risk of spontaneous abortion in these pregnancies remains unclear. The objectives of this study were to quantify the relative risk in assisted reproductive technology pregnancies in relation to two cohorts of natu...

recent advances in reproductive medicine have created a demand for more accurate and safe imaging modalities before assisted reproductive treatment(art) (1). gradually, the important role of three-dimensional (3d) ultrasonography in the diagnosis of uterine congenital anomalies has been proved (2-4).

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objective: to verify the hypothesis that the incidence of chromosomal abnormalities increases in babies conceived by different assisted reproduction procedures. the availability of the umbilical cord blood encouraged us to study this hypothesis via this method. materials and methods: this is a descriptive study, umbilical cord blood samples of assisted reproductive technology (art) children wer...

background: anti-mullerian hormone (amh) levels may represent the ovarian follicular pool and could be a useful marker of ovarian reserve. the clinical application of amh measurement has been proposed in the prediction of quantitative and qualitative aspects in assisted reproductive technologies. objective: this study aimed to assess the relationship between the serum levels of amh and results ...

Cryopreservation of embryos and gametes has become an indispensible service for infertility treatment. Vitrification is now a prevalent technique for cryopreservation in assisted reproductive technology (ART) replacing, in many cases, conventional slow cooling methodology. Fertility preservation in female patients has become a very topical issue. Various malignant and nonmalignant diseases have...

Legal battles over same-sex marriage and technological developments in assisted reproduction have placed the question of the right of gays and lesbians to procreate on the public agenda. This article analyzes the extent to which rights of procreative liberty extend to the use of assisted reproductive techniques to have children and whether, if such rights exist, they can be denied to persons wh...

Although the presence of spermatozoa with an abnormally large head is rare, it is associated with low fertility or even total infertility. We reviewed the literature on assisted reproductive technology (ART) strategies and outcomes for men with large-headed spermatozoa. We also discuss additional analyses that can usefully characterize sperm defects and help with the choice between intra-couple...

background: the use of assisted reproductive technology (art) is increasing in the world. the rate, efficacy and safety of art are very different among countries. there is an increase in the use of intra cytoplasmic sperm injection (icsi), single fresh embryo transfer (et) and frozen-thawed embryo transfer (fet). objective: the objective of this study was to compare pregnancy rate in fresh et a...

BACKGROUND Public interest in Assisted Reproductive Technology (ART) has remained high since the birth of the world's first in vitro fertilization baby, Louise Brown, in the United Kingdom. ART allows scientists to manipulate the fertilization process in order to bypass some pathological obstacles such as blocked fallopian tubes and non-functioning ovaries in the females, and blocked vas defere...