The association between assisted reproductive technologies and low birth weight

2019 ◽  
Vol 31 (3) ◽  
pp. 183-187
Author(s):  
Andres Reig ◽  
Emre Seli
Keyword(s):  
Birth Weight ◽  
Low Birth Weight ◽  
Assisted Reproductive Technologies ◽  
Reproductive Technologies

scholarly journals IMPACT OF MULTIPLE BIRTHS ON THE OUTCOME IN EXTREMELY LOW BIRTH WEIGHT NEWBORNS

2021 ◽  
Vol 27 (3) ◽  
pp. 3985-3991
Author(s):  
Victoria Atanasova ◽  
◽  
Petar Ivanov ◽  
Elitsa Gyokova ◽  
Desislava Georgieva ◽  
...  
Keyword(s):  
Birth Weight ◽  
Low Birth Weight ◽  
Assisted Reproductive Technologies ◽  
Ductus Arteriosus ◽  
Intraventricular Haemorrhage ◽  
Reproductive Technologies ◽  
University Hospital ◽  
Extremely Low Birth Weight ◽  
Gastrointestinal Problems

Objective: To evaluate the outcome of the extremely low birth weight newborns (ELBWNs) from single and twin pregnancies. Material and methods: The study lasts from 2005 to 2017 and includes all life born ELBWNs treated in University Hospital, Pleven, Bulgaria. Patients' groups: singletons (1) and twins (2); twins conceived naturally(2.1) and after assisted reproductive technologies – ART(2.2). Results: One hundred and eighty two (182) ELBWNs are examined, 65 (35.7%) of them are twins. The twins, compared to singletons, are significantly more often conceived by ART (47.7 vs 4.3%, p<0.001) and significantly more rarely infected prenatally (18 vs 41%, p 0.002). The survival rate is 51.3% for singletons and 56.6% for twins, NS. Survived twins (n 37) achieve later their optimal nutritive tolerance (30±11 vs 25±10 days, p 0.046), require more blood transfusions (3.6±1.9 vs 2.6±1.8 per patient, p 0.009) and longer mechanical ventilation (16±15 vs 9±12 days, p 0.03) than survival singletons (n 60). The twins suffer more often from intraventricular haemorrhage (46 vs 18%, p 0.004), patent ductus arteriosus (35 vs 15%, p 0.02) and long-term complications (51 vs 30%, p 0.04) than singletons. ART-twins (n 31)compared to the subgroup 2.1 (n 34) are more frequently intubated in the delivery room (81 vs. 50%, p 0.01)but suffer less frequently from nosocomial infections (53 vs. 85%, p 0.03). Conclusions: According to our data, ELBW-twins frequently suffer from respiratory, haemorrhagic, and gastrointestinal problems than ELBW-singletons, resulting in more long-term complications. Our study proves that ART does not influence the outcome in multiples.

scholarly journals The assessment of twin pregnancies delivered in our clinic: three-year experience

2020 ◽  
Vol 28 (3) ◽  
pp. 170-175
Author(s):  
Cengiz Şanlı ◽  
Salih Burçin Kavak ◽  
Melike Aslan ◽  
Ebru Çelik Kavak ◽  
İbrahim Batmaz ◽  
...  
Keyword(s):  
Birth Weight ◽  
Low Birth Weight ◽  
Pregnant Women ◽  
Preterm Labor ◽  
Twin Pregnancy ◽  
Very Low Birth Weight ◽  
Assisted Reproductive Technologies ◽  
Multiple Pregnancy ◽  
Reproductive Technologies ◽  
Twin Pregnancies

Objective: Twin pregnancies constitute 1–2% of all pregnancies. With the recent developments in assisted reproductive technologies, the incidence of multiple pregnancy has increased. Preterm labor is held responsible for the poor neonatal outcomes primarily. In our study, we aimed to assess fetal-maternal outcomes of twin pregnancies seen in our clinic. Methods: One hundred and thirty twin pregnancy cases out of 4241 pregnant women who delivered in our clinic between 01.01.2017 and 01.01.2020 were included in the study. The labor records of the patients were reviewed retrospectively and their data for age, week of gestation, delivery type, birth weight, fetal sex, chorionicity characteristics and laboratory parameters were recorded. Definitive statistics and SPSS 21.0 for statistical analyses were used to evaluate the data obtained from the study. The data were presented as mean ± SD (standard deviation). Results: The incidence of twin pregnancy was found 3%. In the ultrasonographic imaging evaluated during diagnosis, 27.7% of the cases were monochorionic and 72% of them were dichorionic. Of the pregnant women, 12.3% were at term and 87.7% were at preterm period. When the preterm fetuses were evaluated, 37.7% of 114 preterm fetuses were delivered at late preterm period, 29.2% of them at mid-preterm period and 20.8% at premature preterm period. The rates of treatment pregnancy (pregnancy provided by ovulation induction and assisted reproductive technologies) and spontaneous twin pregnancy were 20% and 80%, respectively. Mean maternal age was found 31.3. When evaluated in terms of maternal morbidity, preterm labor and premature rupture of membrane were the most common problems. Mean newborn weight was 1832g and 59.3% of the newborns had low birth weight and 21.8% of them had very low birth weight. While one fetus had transverse presentation in 12.5% of the patients, at least one fetus had breech presentation in 53.1% of the cases and 34.4% of the cases had head-head presentation. Conclusion: Twin pregnancies are characterized by the increased feto-maternal risks. Therefore, both antenatal and intrapartum management should be maintained diligently.

scholarly journals Perinatal outcomes of human singletons conceived naturally versus assisted reproductive technologies: analysis of the effect of stimulated IVF, modified natural IVF, and frozen embryo transfer

2021 ◽  
Vol 26 (1) ◽  
Author(s):  
Adhwaa Khudhari ◽  
Ali Mourad ◽  
Simon Phillips ◽  
Mohammad Zubair Alam ◽  
Robert Hemmings ◽  
...  
Keyword(s):  
Birth Weight ◽  
Embryo Transfer ◽  
Gestational Age ◽  
Assisted Reproductive Technologies ◽  
Perinatal Outcomes ◽  
Reproductive Technologies ◽  
Primary Objective ◽  
Frozen Embryo Transfer ◽  
Significant Difference

Abstract Background Obstetrical outcomes in assisted reproduction techniques (ART) were compared with naturally conceived pregnancies and among each other in multiple reports. However, many important changes in the practice of in vitro fertilization (IVF) over the years, including single embryo transfers (sET) and the introduction of modified natural IVF (mnIVF), and the advances in the frozen embryo transfer (FET) might have impacted the outcomes. Our study is the first to our knowledge to assess four different groups, including spontaneous pregnancies, mnIVF, stimulated IVF (sIVF), and FET altogether in a head-to-head comparison. This is a retrospective study on perinatal outcomes of singleton babies conceived naturally or using three different ART protocols between 2011 and 2014. The primary objective was the comparison of gestational age and birth weight between spontaneously conceived pregnancies (NAT, n= 15,770), mnIVF (n=235), sIVF (n=389), and FET (n=222). Results Our results show a significant difference in favor of naturally conceived pregnancies over ART in term of gestational age. In fact, the gestational age of babies in the NAT group was statistically higher compared to each one of the ART groups alone. Regarding the birth weight, the mean was significantly higher in the FET group compared to the other categories. Conclusion Differences in perinatal outcomes are still found among babies born after different modes of conception. However, there is still need for well-designed high-quality trials assessing perinatal outcomes between naturally conceived pregnancies and different ART protocols based on different maternal and treatment characteristics.

Assisted reproductive technologies: a hierarchy of risks for conception, pregnancy outcomes and treatment decisions

2017 ◽  
Vol 8 (4) ◽  
pp. 443-447 ◽  
Author(s):  
M. J. Davies ◽  
A. R. Rumbold ◽  
V. M. Moore
Keyword(s):  
Clinical Practice ◽  
Birth Weight ◽  
Birth Defects ◽  
Very Low Birth Weight ◽  
Assisted Reproductive Technologies ◽  
Treatment Success ◽  
Reproductive Technologies ◽  
Adverse Outcomes ◽  
Increased Risk ◽  
The Impact

The use of assisted reproductive technologies (ART) for the treatment of infertility has grown exponentially over the last 20 years, and now accounts for 4% of all births in Australia, and over 1 m births annually around the globe. There is consistent reporting of increased risk of adverse perinatal outcomes and birth defects following infertility treatment. However, change in practice has been stymied by critical knowledge gaps with regards to (a) the relative contribution of patient and treatment factors to adverse outcomes, (b) the independent contribution of specific contemporary treatments and treatment combinations to outcomes, (c) the impact of innovations in laboratory and clinical practice on treatment success and observed risk and (d) changes over time in patient characteristics. Here we summarize key findings from the South Australian Birth Cohort, which is a whole-of-population cohort of over 300,000 births from 1986 to 2002. Relative to spontaneous conceptions, singletons from assisted conception were more likely to be stillborn [odds ratio (OR)=1.82; 95% confidence interval (CI) 1.34–2.48], while survivors as a group were comprehensively disadvantaged at birth, including lower birth weight (OR=2109 g; 95% CI 2129–289), very low birth weight (OR=2.74; 95% CI 2.19–3.43), very preterm birth (OR=2.30; 95% CI 1.82–2.90) and neonatal death (OR=2.04; 95% CI 1.27–3.26). Major birth defects, including cardiac, urogenital and musculoskeletal defects are doubled after fresh ICSI cycles, which is a particular concern as ICSI now accounts for 70% of all treatment cycles globally. Future study is needed to provide contemporary, precise evidence to inform patient and clinic decision making, and generate knowledge for future innovation in ART laboratory methods and clinical practice, thereby optimizing treatment and health outcomes while reducing adverse events.

scholarly journals Study of the obstetrics and perinatal outcome of in vitro fertilization pregnancies at tertiary care centre

2021 ◽  
Vol 10 (6) ◽  
pp. 2225
Author(s):  
Geetha D. Balsarkar ◽  
Shraddha P. Pol
Keyword(s):  
Birth Weight ◽  
Assisted Reproductive Technologies ◽  
Meta Analysis ◽  
Statistical Significance ◽  
Tertiary Care ◽  
Reproductive Technologies ◽  
Multiple Gestation ◽  
Tertiary Care Centre ◽  
Vitro Fertilization

Background: Assisted reproductive techniques (ART) has been a boon to the unfortunate. However, the outcomes aren’t the same to all. The study has observed the outcomes in IVF conceived patients. The pregnant women were followed-up throughout their antenatal and post-natal (7 days) period and an appropriate meta-analysis was made.Methods: This is an Observational Prospective study. It was conducted at an IVF center of tertiary hospital. With valid written informed consents 96 patients were recruited and observed for18 months. Data collected by Universal sampling method, analyzed and interpreted.Results: A total 65.6% belonged above 30 years, 67.7% were primigravida and 7.3% had history of previous ectopic pregnancy. In 23.75% multifetal pregnancy was significant and 20.63% had OS tightening done. Most common reason for opting IVF was multiple failed IUI (71.6%). More than 40% were delivered by caesarean section. 91.1% of babies cried immediately after birth and 50.4% babies required NICU admission.13.4% babies had neonatal death and 3.1% were IUFD. 58.30% pregnancies were singleton. Mean birth weight was 1.87 Kg and 72.6% children were born low birth weight. Statistical significance (p<0.001) was found in between no. of foetuses delivered and preterm delivery. 56.3% birth were preterm birth. PIH and GDM complication is most common in multiple gestations observed in 10.7% of pregnancies.Conclusions: Assisted Reproductive technologies has helped the infertile couples. Outcomes could be unfruitful in few, while others may have a complicated antenatal period. Preterm deliveries are more common in multiple gestation thus complementing the lower birth weights. Comorbidities significantly affected obstetric outcome.

Right ventricular dysfunction in children and adolescents conceived by assisted reproductive technologies

2015 ◽  
Vol 118 (10) ◽  
pp. 1200-1206 ◽  
Author(s):  
Robert von Arx ◽  
Yves Allemann ◽  
Claudio Sartori ◽  
Emrush Rexhaj ◽  
David Cerny ◽  
...  
Keyword(s):  
Birth Weight ◽  
Right Ventricular ◽  
Children And Adolescents ◽  
Cardiac Remodeling ◽  
Ventricular Dysfunction ◽  
Assisted Reproductive Technologies ◽  
Right Ventricular Dysfunction ◽  
Reproductive Technologies ◽  
Tissue Doppler ◽  
Doppler Velocity

Assisted reproductive technologies (ART) predispose the offspring to vascular dysfunction, arterial hypertension, and hypoxic pulmonary hypertension. Recently, cardiac remodeling and dysfunction during fetal and early postnatal life have been reported in offspring of ART, but it is not known whether these cardiac alterations persist later in life and whether confounding factors contribute to this problem. We, therefore, assessed cardiac function and pulmonary artery pressure by echocardiography in 54 healthy children conceived by ART (mean age 11.5 ± 2.4 yr) and 54 age-matched (12.2 ± 2.3 yr) and sex-matched control children. Because ART is often associated with low birth weight and prematurity, two potential confounders associated with cardiac dysfunction, only singletons born with normal birth weight at term were studied. Moreover, because cardiac remodeling in infants conceived by ART was observed in utero, a situation associated with increased right heart load, we also assessed cardiac function during high-altitude exposure, a condition associated with hypoxic pulmonary hypertension-induced right ventricular overload. We found that, while at low altitude cardiac morphometry and function was not different between children conceived by ART and control children, under the stressful conditions of high-altitude-induced pressure overload and hypoxia, larger right ventricular end-diastolic area and diastolic dysfunction (evidenced by lower E-wave tissue Doppler velocity and A-wave tissue Doppler velocity of the lateral tricuspid annulus) were detectable in children and adolescents conceived by ART. In conclusion, right ventricular dysfunction persists in children and adolescents conceived by ART. These cardiac alterations appear to be related to ART per se rather than to low birth weight or prematurity.

scholarly journals Characteristics and morbidity of prematurely born newborns conceived with assisted reproductive technologies

2020 ◽  
Vol 148 (9-10) ◽  
pp. 571-576
Author(s):  
Georgios Konstantinidis ◽  
Vesna Pavlovic ◽  
Aleksandra Stojadinovic ◽  
Katarina Katic
Keyword(s):  
Birth Weight ◽  
Gestational Age ◽  
Intrauterine Growth Restriction ◽  
Very Low Birth Weight ◽  
Assisted Reproductive Technologies ◽  
Reproductive Technologies ◽  
Genetic Syndromes ◽  
Inborn Errors ◽  
Potential Risk Factors ◽  
Postnatal Outcome

Introduction/Objective. The percentage of live-born infants conceived with assisted reproductive technologies (ART) in some European countries reaches 6% and in Serbia over 1%. The aim of this study was to analyze characteristics and morbidity of prematurely born newborns conceived with ART. Methods. The study included 154 prematurely born newborns from pregnancies conceived with ART and 154 prematurely born newborns conceived naturally, hospitalized at the Institute of Health Care of Children and Adolescents of Vojvodina. Participants from both groups were matched according to gestational age and date of birth. Results. Statistically significantly more newborns with very low birth weight have been in the group of newborns conceived by ART in comparison to newborns conceived naturally (?2 test, p = 0.0001). Morbidity of newborns conceived with ART is not higher in comparison to newborns of the same gestational age conceived naturally. Bronchopulmonary dysplasia, occurred more frequently in children from ART (?2 test, p = 0.006) and retinopathy of prematurity occurred more frequently in children conceived spontaneously (?2 test, p = 0.047). There was no difference in the frequency of birth defects, genetic syndromes, and inborn errors of metabolism between the two groups. Conclusion. Lower birth weight and intrauterine growth restriction are potential risk factors for worse postnatal outcome in newborns from pregnancies conceived with ART.

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