scholarly journals Prediction of adverse pregnancy outcome in monochorionic diamniotic twin pregnancy complicated by selective fetal growth restriction

2019 ◽  
Vol 53 (2) ◽  
pp. 200-207 ◽  
Author(s):  
C. Monaghan ◽  
E. Kalafat ◽  
J. Binder ◽  
B. Thilaganathan ◽  
A. Khalil
2008 ◽  
Vol 99 (01) ◽  
pp. 77-85 ◽  
Author(s):  
Nard G Janssen ◽  
Jakoba J Kalk ◽  
William M Hague ◽  
Gustaaf A Dekker ◽  
Willem J Kist ◽  
...  

SummaryIt was the objective of this study to analyse the influence of confounders, such as ethnicity, severity of illness and method of testing, in articles concerning the still moot relationship of thrombophilias to adverse pregnancy outcome (APO). Relevant casecontrol studies were identified using Medline and EMBASE databases between 1966 and 2006. Search terms were recurrent fetal loss, intrauterine fetal death, preeclampsia, HELLP-syndrome, eclampsia, fetal growth restriction, abruptio placentae, combined with maternal thrombophilias. Data was extracted from the articles per subgroup ofAPO regardless of confounder. These subgroups were tested if they fulfilled the heterogeneity testing criterion (I2 > 35%) to weigh the influence of the confounder. Confounders were selected and examined with Mantel- Haenszel method. Increased thrombophilia prevalence was confirmed in most adverse pregnancy outcomes. Ethnicity, genetic testing only and severity of illness were confounders in the various forms of APO. Stronger relationships between factor V Leiden and severity of disease were found in 2nd and 3rd trimester than 1st trimester recurrent fetal loss, in preeclampsia with: blood pressure ≥160/110 mmHg than ≥140/90 mmHg; proteinuria ≥5 grams per day than < 5 grams; onset before than after 28 weeks, in fetal growth restriction <3rd percentile than <5th, than <10th, and in earlier occurrence of abruptio placentae than 3rd trimester. In conclusion, reports on the prevalence of maternal thrombophilias and APO are influenced by various confounders, which are not always appropriately analysed. The differences we have identified reflect the differential impact of these confounders. These data emphasise the importance of more uniform research.


2011 ◽  
Vol 2011 ◽  
pp. 1-11 ◽  
Author(s):  
Padma Murthi ◽  
Gayathri Rajaraman ◽  
Shaun Patrick Brennecke ◽  
Bill Kalionis

Fetal growth restriction (FGR) is an adverse pregnancy outcome associated with significant perinatal and paediatric morbidity and mortality, and an increased risk of chronic disease later in adult life. One of the key causes of adverse pregnancy outcome is fetal growth restriction (FGR). While a number of maternal, fetal, and environmental factors are known causes of FGR, the majority of FGR cases remain idiopathic. These idiopathic FGR pregnancies are frequently associated with placental insufficiency, possibly as a result of placental maldevelopment. Understanding the molecular mechanisms of abnormal placental development in idiopathic FGR is, therefore, of increasing importance. Here, we review our understanding of transcriptional control of normal placental development and abnormal placental development associated with human idiopathic FGR. We also assess the potential for understanding transcriptional control as a means for revealing new molecular targets for the detection, diagnosis, and clinical management of idiopathic FGR.


2021 ◽  
Vol 22 (18) ◽  
pp. 10122
Author(s):  
Eun Hui Joo ◽  
Young Ran Kim ◽  
Nari Kim ◽  
Jae Eun Jung ◽  
Seon Ha Han ◽  
...  

Oxidative stress is caused by an imbalance between the production of reactive oxygen species (ROS) in cells and tissues and the ability of a biological system to detoxify them. During a normal pregnancy, oxidative stress increases the normal systemic inflammatory response and is usually well-controlled by the balanced body mechanism of the detoxification of anti-oxidative products. However, pregnancy is also a condition in which this adaptation and balance can be easily disrupted. Excessive ROS is detrimental and associated with many pregnancy complications, such as preeclampsia (PE), fetal growth restriction (FGR), gestational diabetes mellitus (GDM), and preterm birth (PTB), by damaging placentation. The placenta is a tissue rich in mitochondria that produces the majority of ROS, so it is important to maintain normal placental function and properly develop its vascular network to ensure a safe and healthy pregnancy. Antioxidants may ameliorate these diseases, and related research is progressing. This review aimed to determine the association between oxidative stress and adverse pregnancy outcomes, especially PE, FGR, GDM, and PTB, and explore how to overcome this oxidative stress in these unfavorable conditions.


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