ASSISTED REPRODUCTIVE TECHNOLOGIES (original) (raw)
[Health and development of children conceived through assisted reproductive technologies]
PubMed, 2014
Around 3% of children are conceived by assisted reproductive technology (ART) in France. Several questions concerning the early or late follow-up of these children are raised, as there are differences in the population in charge and because of clinical or biological procedures used. Nevertheless, one has to be cautious in interpreting the data as it is difficult to study one factor at a time, and as many other events can bias the results. However, ART is associated with a higher risk, even moderate, of prematurity, foetal hypotrophy, and neo natal complications, as compared to natural conceived children. There is also increasing evidence that ART-conceived children present more epigenetic diseases and congenital mainly concerning cardio-vascular, uro-genital and musculo-skeletal systems, as natural conceived children. Absolute risks remain anyway moderate and reassuring. Long term follow up is encouraging, with correct growth or psychomotor development of these children, and no significant excess of risk for cancer, but it is necessary to carry on this follow up in order to have data on their development to adulthood and on their fertility.
Fertility and Sterility, 2011
Objective: To analyze information on assisted reproductive technologies (ART) performed globally. Design: Data on access, efficacy, and safety of ART were collected for the year 2003 from 54 countries. Setting: National and regional ART registries globally. Patient(s): Patients undergoing ART globally. Intervention(s): Collection and analysis of international ART registry data. Main Outcome Measure(s): Number of cycles performed in reporting countries and regions globally for different ART procedures with resulting pregnancy, live birth and multiple birth rates. Result(s): A total of 433,427 initiated cycles reported in this registry resulted in 173,424 babies born. This corresponded to a delivery rate per aspiration of 22.4% for in vitro fertilization (IVF), 23.3% for intracytoplasmic sperm injection (ICSI), and a delivery rate per transfer of 17.1% for frozen embryo transfer. Although there is wide variation among countries and regions, the overall proportion of deliveries with twins and triplets from IVF and ICSI was 24.8% and 2.0%, respectively. There were wide variations in access, and compared with the previous report (year 2002), there was a 3.9% increase in the number of reported cycles and a minor increase in the delivery rate per aspiration. There was also a marginal decline in the mean number of embryos transfered and in the rate of multiple births. Conclusion(s): ART access, efficacy, and safety varies greatly globally. Collection and analysis of data over time will benefit ART patients, providers, and policy makers. (Fertil Steril Ò 2011;95:2209-22.
Effectiveness of Assisted Reproductive Technology
2008
Objectives:We reviewed the evidence regarding the outcomes of interventions used in ovulation induction, superovulation, and in vitro fertilization (IVF) for the treatment of infertility. Short-term outcomes included pregnancy, live birth, multiple gestation, and complications. Long-term outcomes included pregnancy and post-pregnancy complications for both mothers and infants.
Assisted reproductive technologies: how to minimize the
2008
In 2% of assisted reproductive techniques (ART) cycles complications occur. Some are preventable, some are not. In this paper, we will discuss risks and complications of the standard 'Western' approach in ART today and point to some measures to be taken when implementing ART in developing countries, where resources and access to medical care may be limited. Ovarian hyperstimulation syndrome (OHSS, and its thrombo-embolic complications) is responsible for the majority of cycle-related complications, followed by bleeding and infection at oocyte retrieval. ART pregnancies are complicated by first-trimester bleeding more often than spontaneous pregnancies, they are more often ectopic, but the major complication is the very high incidence of multiple pregnancies, when more than one embryo is transferred. OHSS can be prevented by screening patients at risk and by using mild or no stimulation. Simple measures can minimize the risks of bleeding or infection. Obviously single embryo transfer is the only way to avoid multiple pregnancies, which have a highly increased risk for severe maternal and neonatal morbidity and mortality (mainly due to prematurity). Special attention should be given to pre-existing pathologies. Risk minimization of ART in developing countries is not only mandatory from an economical but also an ethical point of view.
Assisted Reproductive Technologies in India
Development, 2006
Assisted Reproductive Technologies (ARTs) 1 raise significant issues at the interface of technology, health and society. Manjeer Muherjee and Sarojini N.B. look at the intersection of patriarchal traditions, the scientific medical establishment, and the global market in India and their combined impact on the creation, proliferation and standardization of new reproductive technologies.
Human Reproduction, 2014
What are the access, effectiveness and safety of assisted reproductive technology (ART) worldwide in 2006? summary answer: ART access, effectiveness and safety vary markedly among countries. Overall, there was an increase in the use of ICSI, single embryo transfer (SET) and frozen embryo transfer (FET). There was a decline in the multiple delivery rate (DR) and preterm birth rate. what is known already: ART is widely practiced worldwide and there is a need for its continuous monitoring to improve the comprehensiveness and quality of ART data and services. study design, size, duration: This is a retrospective, cross-sectional survey of ART cycles undertaken worldwide in 2006. participants, setting, methods: A total of 2352 clinics in 56 countries provided data. Data were analyzed at a country and regional level. The forms for data collection were developed by the International Committee Monitoring Assisted Reproductive Technologies (ICMART) and sent to each country or regional ART register. main results and the role of chance: A total of .1 050 300 initiated cycles resulted in an estimated .256 668 babies. The overall pregnancy rates (PRs) and DRs per aspiration for IVF were 30.7 and 22.8%, respectively, and for ICSI 29.7 and 20.0%, respectively. The PRs and DRs for FETs were 26.4 and 17.8%, respectively. Multiple DR per PR were 22.2% for twins and 1.5% for triplets following fresh IVF/ICSI and 16.4% for twins and 0.8% for triplets for FETs. Ovarian hyperstimulation syndrome complicated .4585 cycles (0.6%). Access to ART varied from 11 to 3988 cycles per million population. ICSI comprised 66.0% of all initiated cycles, FET 27.4% and SET 20.7%. Perinatal mortality rate was 25.2 per 1000 births for fresh IVF/ICSI and 17.5 per 1000 for FETs. limitations, reasons for caution: 44.6% of the countries provided incomplete data. Quality of data varies among individual countries and is dependant on the policy of the local regulatory authority for monitoring ART clinics. Continuous efforts are needed to improve comprehensiveness and quality of data collected. wider implications of the findings: Adopting the policy of SET, FET and the cessation of transferring more than two embryos should be widely applied. ICMART will continue helping countries and regions to establish their own ART registries. †
Assisted reproductive technologies in public and private clinics
Reproductive Biomedicine Online, 2009
The aim of this study was to analyse the influence of the type of service provided by assisted reproduction clinics. The activities, treatment patterns and results achieved by assisted reproduction centres in Spain were examined, comparing public and private clinics. A retrospective study was carried out using the Assisted Reproductive Technology Register of the Spanish Fertility Society for 2002-2004. The results showed that 74%, 96% and 99% of IVF/intracytoplasmic sperm injection, oocyte donation and preimplantation genetic diagnosis cycles, respectively, were carried out in the private sector. Public clinics performed proportionally more transfers of three embryos than the private clinics (48.1% versus 41.7%). More elective transfers were performed in private clinics. Pregnancy rates per cycle started, per puncture and per transfer were significantly higher among private than public clinics (29.1%, 32.7% and 35.9% versus 25.2%, 28.5% and 32.6%, respectively) (P < 0.05). Implantation rate has risen year on year in both types of clinic and was significantly higher (P < 0.05), every year, among the private clinics. The multiple-pregnancy rate was significantly higher among the private clinics (30.8% versus 26.4%) (P < 0.05). In conclusion, differences exist between public and private clinics as regards to their volume of activity, the range of services offered, clinical practice and results achieved.
Effectiveness of assisted reproductive technology (ART)
Evidence report/technology assessment, 2008
We reviewed the evidence regarding the outcomes of interventions used in ovulation induction, superovulation, and in vitro fertilization (IVF) for the treatment of infertility. Short-term outcomes included pregnancy, live birth, multiple gestation, and complications. Long-term outcomes included pregnancy and post-pregnancy complications for both mothers and infants. MEDLINE and Cochrane Collaboration resources. We included studies published in English from January 2000 through January 2008. For short-term outcomes, we excluded non-randomized studies and studies where a pregnancy or live birth rate per subject could not be calculated. For long-term outcomes, we excluded studies with fewer than 100 subjects and those without a control group. Articles were abstracted for relevant details, and relative risks or odds ratios, with 95 percent confidence intervals, were calculated for outcomes of interest for each study. We identified 5294 abstracts and (for the three questions discussed in...
Biological & clinical sciences research journal, 2024
Assisted Reproductive Technologies (ART) have revolutionized the landscape of reproductive medicine, offering hope to couples facing infertility challenges. The study's main objective is to find the maternal and fetal outcomes associated with assisted reproductive technologies. This retrospective cohort study was conducted in Lady Reading Hospital Peshawar from July 2019 to June 2023. The study includes 850 participants who underwent ART procedures between 2021 and 2022. Details of the ART procedures, such as the technique employed, the number of embryos transferred, and the utilization of preimplantation genetic testing, were meticulously documented. Maternal outcomes were a focal point, with a comprehensive assessment of pregnancyrelated hypertensive disorders, gestational diabetes, mode of delivery, and any postpartum complications. Data was collected from 850 participants. The mean maternal age was 33.5 years (SD = 4.2), and the mean BMI was 25.8 (SD = 3.5). The primary causes of infertility varied, with male factor infertility being the most prevalent at 40%, followed by ovulatory dysfunction at 30% and unexplained infertility at 20%. The ART procedures in the study cohort comprised In Vitro Fertilization (IVF) at 60%, followed by Intracytoplasmic Sperm Injection (ICSI) at 25%, and other ART techniques at 15%. Regarding the number of embryos transferred, the majority received a single source (70%), with 20% receiving two starts and 10% receiving three or more. It is concluded that pregnancies conceived through Assisted Reproductive Technologies (ART) exhibit a higher prevalence of pregnancy-related hypertensive disorders and gestational diabetes compared to naturally conceived pregnancies.