نتایج جستجو برای: live birth rate
تعداد نتایج: 1140061 فیلتر نتایج به سال:
OBJECTIVE Analysing Colombia's low birth weight pattern over a five-year period (2005 to 2009) and identifying the determinants and risk factors associated with such low birth weight rate. METHODS This was a retrospective descriptive study which used the information contained in live birth certificates. Ratios were calculated for each selected variable and a multivariate logistic regression m...
BACKGROUND New techniques in assessing oocytes and embryo quality are currently explored to improve pregnancy and delivery rates per embryo transfer. While a better understanding of embryo quality could help optimize the existing "in vitro fertilization" (IVF) therapy schemes, it is essential to address the economic viability of such technologies in the healthcare setting. METHODS An Embryo-D...
BACKGROUND It has become an accepted procedure to transfer more than one embryo to the patient to achieve acceptable ongoing pregnancy rates. However, transfers of more than a single embryo increase the probability of establishing a multiple gestation. Single-embryo transfer can minimize twin pregnancies but may also lower live birth rates. This meta-analysis aimed to compare current data on si...
.. Objectives: The rationale of our study is to investigate whether aspirin alone, or aspirin combined with low molecular weight heparin as compared to placebo (intensive pregnancy surveillance), would improve the live birth rate (primary outcome) among with idiopathic recurrent miscarriages. Secondary outcomes included rate of serious adverse events during pregnancy among pharmacological inter...
BACKGROUND Success rates of assisted reproductive techniques (ART) are approximately 30%, with the most important limiting factor being embryo implantation. Mechanical endometrial injury, also called 'scratching', has been proposed to positively affect the chance of implantation after embryo transfer, but the currently available evidence is not yet conclusive. The primary aim of this study is t...
a descriptive prospective study was undertaken to determine birth weight, length and head circumference of live births and to examine the effect of maternal age, parity and gestational age on birth sizes of the live births. a total of 459 term singleton maternal– neonate pairs were studied. the neonates had anthropometric measurements determined with in 24hours of life using standard methods. t...
One of the technical bottlenecks in producing nonhuman primate models is that current assisted reproductive techniques, such as in vitro culture and frozen conservation of multicell-stage embryos, often result in poor embryo quality and subsequently lead to low birth rates. We investigated whether pronuclear embryo transfer can be used as an effective means for improving pregnancy and live birt...
BACKGROUND In both in vitro fertilisation (IVF) and intracytoplasmic sperm injection (ICSI), selection of the most competent embryo(s) for transfer is generally based on morphological criteria. However, many women fail to achieve a pregnancy after transfer of good quality embryos. One of the presumed causes is that such morphologically normal embryos show an abnormal number of chromosomes (aneu...
The aim of this retrospective study was to investigate the impact of endogenous and exogenous luteinizing hormone (LH) activity on treatment outcome, when taking into consideration potential confounding variables. Data were derived from IVF patients (n = 358) stimulated with highly purified menotrophin (HP-hMG) in a long gonadotrophin-releasing hormone (GnRH) agonist protocol. Simple retrospect...
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