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March highlights

The March issue of Ultrasound in Obstetrics & Gynecology contains 12 Original Articles; two Editorials; a Systematic Review; a Review; plus the SEDATE guideline

Please see below a selection of articles from the March issue of the Journal chosen specially by the UOG team. To view all UOG content become an ISUOG member today.

Zika virus interim guidance
In response to the World Health Organization statement and the international concerns regarding the Zika virus outbreak, ISUOG has published an interim guidance for ultrasound in pregnancy that should be taken into consideration by healthcare professionals. View the interim guidance online and look out for them in the next issue of UOG.

Morbidly adherent placenta
In this issue of UOG are a number of articles on the topic of morbidly adherent placenta (MAP), a rare but serious pregnancy complication in which the placenta grows deeply into the wall of the uterus and is unable to detach after childbirth. Reporting on this condition are two Editorials (Collins et al. and Alfirevic et al.) that discuss the need for standardized ultrasound descriptors of abnormally invasive placenta, a review by D’Antonio et al. on counseling in cases of MAP and an original article by Pilloni et al. that describes the accuracy of ultrasound in the antenatal diagnosis of placental attachment disorders.
Links: Collins:

Accuracy of transvaginal ultrasound for diagnosis of deep endometriosis in the rectosigmoid
Assessment of patients with suspected deep infiltrating endometriosis (DIE) prior to surgical treatment is vital to ensure informed counseling, an appropriate surgical team and to assess the likely operative complexity. Currently, transvaginal ultrasound is considered a central non-invasive method of evaluating the extent of DIE within the pelvis, however more advanced techniques are more often being used, such as rectal water contrast and/or sonovaginography. In this systematic review and meta-analysis by Guerriero et al., 19 studies including 2639 women were included and a sensitivity and specificity were 91% and 97%, respectively, confirming that TVS is an accurate imaging method for the diagnosis of DIE in the rectosigmoid.
View the full article:
This article is only available to subscribers of UOG; remember to login to the ISUOG website to access this article, or become an ISUOG member to subscribe to UOG.

Prediction of large-for-gestational-age neonates: screening by maternal factors and biomarkers in the three trimesters of pregnancy
Macrosomia is associated with adverse perinatal outcome for both the mother (emergency Cesarean section, operative vaginal delivery and postpartum hemorrhage) and the neonate (shoulder dystocia, brachial plexus injury, fracture of the humerus, birth asphyxia and even stillbirth). The majority of the associated harm to both mother and neonate is due to traumatic vaginal delivery; elective Cesarean delivery or early induction of labor in suspected cases of macrosomia should reduce this harm, however previous studies assessing the effectiveness of elective delivery are hindered by the inability of current models to predict macrosomia. In this study by Frick et al., a model was developed that combines maternal history, fetal biometry and maternal biophysical and biochemical markers to predict pregnancies that will deliver large-for-gestational-age neonates.
View the full article: and Journal Club slides:

Fetoscopy in twin pregnancy
In this issue of UOG are four studies on the outcome of twin pregnancies after fetoscopy: Donepudi et al. determine whether anemia–polycythemia in twin–twin transfusion syndrome (TTTS) affects outcome after fetoscopic laser surgery; Ortiz et al. report the incidence and impact of chorioamniotic membrane separation after fetoscopy on perinatal outcome; Peeters et al. validate operator competence in fetoscopy for TTTS; and Eschbach et al. identify the independent factors associated with single fetal demise after laser therapy for TTTS. 
Links: (Donepudi) (Ortiz) (Peeters) (Eschbach)
These articles are only available to subscribers of UOG; remember to login to the ISUOG website to access this article, or become an ISUOG member to subscribe to UOG.

Crystal Vue technique for imaging fetal spine and ribs
A novel imaging technique, Crystal Vue, based on image-contrast enhancement can be used for processing and rendering of acquired three-dimensional ultrasound volumes. Recent experience with Crystal Vue has led researchers to believe that it can provide new opportunities for prenatal imaging, particularly of the skeletal system but also of the face and brain. In this Picture of the Month article by Dall’Asta et al., images of the spine and ribs in a third-trimester normal fetus and those in a fetus with suspected skeletal dysplasia, examined using Crystal Vue and Realistic Vue software applications, are presented and compared.
View the full article:
This article is only available to subscribers of UOG; remember to login to the ISUOG website to access this article, or become an ISUOG member to subscribe to UOG.

Synthesizing Evidence from Diagnostic Accuracy TEsts: the SEDATE guideline
With the increasing number of diagnostic test accuracy (DTA) meta-analyses being published, there is a need to ensure that the reporting is accurate and reliable. The aim of the SEDATE guideline is to highlight the features that are unique to DTA meta-analysis and provide section-by-section guidance on the methodological elements that should be included.
View the full article:

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