introduction: congenital gastrointestinal (gi) malformation occurs due to mal development of gi organs. the diagnosis is based on clinical exam and radiography. the aim of this study was to determine prevalence of gastrointestinal anomalies in imam reza hospital deliveries mashhad, iran. materials and methods: in retrospective descriptive study for one year since 1.8.1391 all deliveries in our ...

OBJECTIVE To determine to what extent institutions carrying out in vitro fertilisation can reasonably be ranked according to their live birth rates. DESIGN Retrospective analysis of prospectively collected data on live birth rate after in vitro fertilisation. SETTING 52 clinics in the United Kingdom carrying out in vitro fertilisation over the period April 1994 to March 1995. MAIN OUTCOME...

BACKGROUND The nutrition and epidemiologic transition has been associated with an increasing incidence of preterm birth in developing countries, but data from large observational studies in China have been limited. Our study was to describe the trends and factors associated with the incidence of preterm birth and infant mortality due to prematurity in Hubei Province, China. METHODS We conduct...

The aim of this systematic review and meta-analysis was to assess whether the addition of recombinant luteinizing hormone (LH) increases live birth rate, among patients treated with follicle stimulating hormone (FSH) and gonadotrophin-releasing hormone (GnRH) analogues for in vitro fertilization (IVF). Eligible studies were randomized controlled trials (RCTs) answering the research question tha...

It is increasingly recognized that few if any populations have undergone the transition from high to low fertility without significant recourse to induced abortion (Davis, 1963; Kirk, 1967). The strategic role played by induced abortion in helping to bring down the birth rate of Japan and the nations of Eastern Europe is well documented (Muramatsu, 1960; Hall, 1970). That its contribution to fa...

OBJECTIVE The aim of the study was to investigate whether the use of low molecular weight heparin (LMWH) improve live birth rates when compared with control group in patients with unexplained recurrent miscarriages (URM). METHODS In this prospective observational study 150 women with a history of two or more previous unexplained first trimester pregnancy loss who received LMWH; either enoxapa...

Only 60-70% of fertilized eggs may result in a live birth, and very early fetal loss mainly goes unnoticed. Outcomes that can only be ascertained in live-born children will be missing for those who do not survive till birth. In this article, we illustrate a common bias structure (leading to 'live-birth bias') that arises from studying the effects of prenatal exposure to environmental factors on...

BACKGROUND Preimplantation genetic diagnosis (PGD) has been stated to improve live birth rates compared with natural conception in couples with recurrent miscarriage (RM) carrying a structural chromosome abnormality. It is unclear to what extent this claim can be substantiated by evidence. A systematic review of the literature was performed on the reproductive outcome of these couples after nat...

BACKGROUND During the past decade in the UK, only one in six cycles of assisted conception has resulted successfully in a live birth. Assisted hatching (AH) has been proposed to improve outcome. This systematic review of randomized controlled trials addresses primary outcomes of live birth, clinical pregnancy and embryo implantation. METHODS Trials on post-fertilization disruption of the zona...