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https://www.readbyqxmd.com/read/29922181/editorial-recent-advances-in-doppler-signal-processing-and-modeling-techniques-for-fetal-monitoring
#1
EDITORIAL
Ahsan H Khandoker, Faezeh Marzbanrad, Yoshitaka Kimura
No abstract text is available yet for this article.
2018: Frontiers in Physiology
https://www.readbyqxmd.com/read/29922012/fetal-cardiac-arrhythmias-current-evidence
#2
REVIEW
Nathalie Jeanne Bravo-Valenzuela, Luciane Alves Rocha, Luciano Marcondes Machado Nardozza, Edward Araujo Júnior
This article reviews important features for improving the diagnosis of fetal arrhythmias by ultrasound in prenatal cardiac screening and echocardiography. Transient fetal arrhythmias are more common than persistent fetal arrhythmias. However, persistent severe bradycardia and sustained tachycardia may cause fetal hydrops, preterm delivery, and higher perinatal morbidity and mortality. Hence, the diagnosis of these arrhythmias during the routine obstetric ultrasound, before the progression to hydrops, is crucial and represents a challenge that involves a team of specialists and subspecialists on fetal ultrasonography...
May 2018: Annals of Pediatric Cardiology
https://www.readbyqxmd.com/read/29917286/quality-assessment-of-uterine-artery-doppler-measurement-in-first-trimester-combined-screening-for-pre-eclampsia
#3
Daniel L Rolnik, Fabricio da Silva Costa, Daljit Sahota, Jon Hyett, Andrew McLennan
AIM: To assess the quality of mean uterine artery pulsatility index (UtAPI) measurement in a first trimester pre-eclampsia screening program. METHODS: Consecutive patients attending first trimester screening for fetal chromosomal abnormalities also had combined screening for pre-eclampsia based on the Fetal Medicine Foundation (FMF) algorithm, in a large practice in Sydney, Australia, from May 2014 to February 2017. Distributions of mean UtAPI multiples of the median (MoM) on the logarithmic scale were plotted in relation to the normal median with 95% confidence interval (CI) for each operator and for each month...
June 19, 2018: Ultrasound in Obstetrics & Gynecology
https://www.readbyqxmd.com/read/29913544/uterine-artery-doppler-in-screening-for-preeclampsia-and-fetal-growth-restriction
#4
Marianna Amaral Pedroso, Kirsten Rebecca Palmer, Ryan James Hodges, Fabricio da Silva Costa, Daniel Lorber Rolnik
OBJECTIVE:  To perform a comprehensive review of the current evidence on the role of uterine artery Doppler, isolated or in combination with other markers, in screening for preeclampsia (PE) and fetal growth restriction (FGR) in the general population. The review included recently published large cohort studies and randomized trials. METHODS:  A search of the literature was conducted using Medline, PubMed, MeSH and ScienceDirect. Combinations of the search terms "preeclampsia," "screening," "prediction," "Doppler," "Doppler velocimetry," "fetal growth restriction," "small for gestational age" and "uterine artery" were used...
May 2018: Revista Brasileira de Ginecologia e Obstetrícia
https://www.readbyqxmd.com/read/29909268/the-relationship-between-intrapartum-cerebroplacental-ratio-and-adverse-perinatal-outcomes-in-term-fetuses
#5
Natthicha Chainarong, Chusana Petpichetchian
OBJECTIVES: The cerebroplacental ratio (CPR) Doppler has been proposed as an instrument for predicting adverse perinatal outcomes particularly during antepartum period. Abnormal CPR is associated with non-reassuring fetal status requiring operative delivery, low Apgar score and neonatal complications. The aim of this study was to assess the role of CPR Doppler in the labor triage suite, so as to identify fetuses at risk for non-reassuring status as well as other adverse perinatal outcomes...
June 11, 2018: European Journal of Obstetrics, Gynecology, and Reproductive Biology
https://www.readbyqxmd.com/read/29907759/bisphenol-a-exposure-during-early-pregnancy-impairs-uterine-spiral-artery-remodeling-and-provokes-intrauterine-growth-restriction-in-mice
#6
Judith Elisabeth Müller, Nicole Meyer, Clarisa Guillermina Santamaria, Anne Schumacher, Enrique Hugo Luque, Maria Laura Zenclussen, Horacio Adolfo Rodriguez, Ana Claudia Zenclussen
Endocrine disrupting chemicals are long suspected to impair reproductive health. Bisphenol A (BPA) has estrogenic activity and therefore the capacity of interfering with endocrine pathways. No studies dissected its short-term effects on pregnancy and possible underlying mechanisms. Here, we studied how BPA exposure around implantation affects pregnancy, particularly concentrating on placentation and uterine remodeling. We exposed pregnant female mice to 50 µg/kg BPA/day or 0.1% ethanol by oral gavage from day 1 to 7 of gestation...
June 15, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29900608/early-labor-cerebroplacental-ratio-assessment-in-uncomplicated-term-pregnancies-and-prediction-of-adverse-perinatal-outcomes-a-prospective-multicentre-study
#7
Andrea Dall'Asta, Tullio Ghi, Giuseppe Rizzo, Annalisa Cancemi, Filomena Aloisio, Domenico Arduini, Giuseppe Pedrazzi, Francesc Figueras, Tiziana Frusca
INTRODUCTION: Doppler ultrasound has recently been suggested to identify subclinical placental functional impairment among normal sized term fetuses. The objective of this study was to evaluate the relationship between cerebroplacental ratio (CPR) measured in early labor and perinatal and delivery outcomes in a cohort of uncomplicated singleton term pregnancies. METHODS: This was a multicentre, prospective, observational study involving three Tertiary Centres. Low risk term pregnancies, as defined by the absence of any maternal morbidity and pregnancy complication and normal ultrasound and clinical screening of the fetal growth in the third trimester, with spontaneous onset of labor were included...
June 13, 2018: Ultrasound in Obstetrics & Gynecology
https://www.readbyqxmd.com/read/29895999/nonimmune-hydrops-fetalis-factors-which-predict-outcome
#8
Manisha Kumar, Vandana Jha, Anuradha Singh
Aims and Objective: To evaluate the cause of NIHF cases referred to a tertiary referral center and to analyze the outcome. Materials and Methods: A total of 130 cases of fetal hydrops registered during eight-year study period were reviewed. Antenatal ultrasound, blood investigations and postnatal fetal examination were done, and outcome was noted. Results: Out of 130 cases of NIHF, antenatal ultrasound showed the presence of structural malformations in 94/130 (72...
June 2018: Journal of Obstetrics and Gynaecology of India
https://www.readbyqxmd.com/read/29888988/is-umbilical-vein-varix-associated-with-changes-in-cerebroplacental-ratio
#9
Leonti Grin, Simon Shenhav, Ahmed Elasbah, Mark Rabinovich, Hadar Sofer, Eyal Anteby, Efraim Zohav
OBJECTIVE: We aimed to review a single center experience in follow-up and management of fetuses with umbilical vein varix (UVV) and to assess the effect of UVV on fetal Doppler parameters. METHODS: We reviewed retrospectively maternal antenatal records, delivery records, and newborn records to identify cases of UVV. Further, we retrospectively compared 25 fetuses with isolated UVV and available cerebroplacental ratio (CPR) analysis with 75 matched controls. RESULTS: We identified 67 cases of UVV...
June 11, 2018: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/29879462/pravastatin-l-arginine-combination-improves-umbilical-artery-blood-flow-and-neonatal-outcomes-in-dichorionic-twin-pregnancies-through-an-nitric-oxide-dependent-vasorelaxant-effect
#10
Aleksandar Jurisic, Zaklina Jurisic, Eleftheria Lefkou, Joaquim Pombo, Guillermina Girardi
The increase in fetal and neonatal morbidity and mortality associated with twin pregnancies correlates with an increased risk of preterm delivery, low birth weight, and intrauterine growth restriction (IUGR). Although the pathogenesis of IUGR is unclear and thus management remains a major challenge, feto-placental blood vessels are compromised, and altered umbilical blood flow is observed. In this pilot observational study we investigated the effects of pravastatin plus l-arginine on umbilical artery (umb art) blood flow...
June 4, 2018: Vascular Pharmacology
https://www.readbyqxmd.com/read/29863424/clinical-implications-of-umbilical-artery-doppler-changes-after-betamethasone-administration
#11
Nandini Raghuraman, Bree Porcelli, Lorene Temming, George Macones, Alison Cahill, Methodius Tuuli, Jeffrey M Dicke
BACKGROUND: Betamethasone (BMZ) is commonly administered to patients with fetal growth restriction (FGR) and abnormal umbilical artery Doppler velocimetry (UAD) due to the increased risk of preterm delivery; however, the clinical impact of UAD changes after BMZ exposure is unknown. OBJECTIVE: To test the hypothesis that lack of UAD improvement after BMZ administration is associated with shorter latency and greater neonatal morbidity in patients with FGR. STUDY DESIGN: This was a retrospective cohort study of pregnancies complicated by FGR and abnormal UAD between 240 -336 weeks gestation...
June 4, 2018: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/29863146/machine-learning-from-fetal-flow-waveforms-to-predict-adverse-perinatal-outcomes-a-study-protocol
#12
Zahra Hoodbhoy, Babar Hasan, Fyezah Jehan, Bart Bijnens, Devyani Chowdhury
Background: In Pakistan, stillbirth rates and early neonatal mortality rates are amongst the highest in the world. The aim of this study is to provide proof of concept for using a computational model of fetal haemodynamics, combined with machine learning. This model will be based on Doppler patterns of the fetal cardiovascular, cerebral and placental flows with the goal to identify those fetuses at increased risk of adverse perinatal outcomes such as stillbirth, perinatal mortality and other neonatal morbidities...
February 12, 2018: Gates open research
https://www.readbyqxmd.com/read/29851029/placental-growth-factor-as-an-indicator-of-fetal-growth-restriction-in-late-onset-small-for-gestational-age-pregnancies
#13
Ngaire Anderson, Monique De Laat, Samantha Benton, Peter Dadelszen, Lesley McCowan
BACKGROUND: At-risk small-for-gestational age (SGA) pregnancies in New Zealand are identified using Doppler ultrasound; fetuses with Doppler abnormalities are considered growth restricted (FGR). Low maternal placental growth factor (PlGF) has also been associated with late-onset FGR. AIMS: To investigate whether low PlGF at diagnosis of late-onset SGA identifies the same fetuses classified FGR by detailed Doppler studies, and the association between low PlGF and adverse pregnancy outcomes...
May 31, 2018: Australian & New Zealand Journal of Obstetrics & Gynaecology
https://www.readbyqxmd.com/read/29844937/utility-of-doppler-parameters-at-36-42-weeks-gestation-in-the-prediction-of-adverse-perinatal-outcomes-in-appropriate-for-gestational-age-fetuses
#14
Michał Migda, Katarzyna Gieryn, Bartosz Migda, Marian Stanisław Migda, Marek Maleńczyk
Aim: To investigate the potential value of Doppler ultrasound and to assess cerebroplacental ratio (CPR) in the prediction of adverse perinatal outcome defined as Apgar score < 7 at 1 minute. Material and methods: This was a retrospective cross-sectional study in selected pregnant women undergoing an ultrasound examination between 36 and 42 weeks of gestation. We measured estimated fetal weight (EFW), mean umbilical artery pulsatility index (UA PI), mean middle cerebral artery pulsatility index (MCA PI), CPR, and Apgar score in 1 minute...
March 2018: Journal of Ultrasonography
https://www.readbyqxmd.com/read/29808615/image-scoring-system-for-umbilical-and-uterine-artery-pulsed-wave-doppler-ultrasound-measurement
#15
M Molloholli, R Napolitano, E O Ohuma, S Ash, S Z Wanyonyi, A Cavallaro, A Giudicepietro, F Barros, M Carvalho, S Norris, M A M Min, G Zainab, A T Papageorghiou
OBJECTIVE: To develop an objective, image scoring system for pulsed wave Doppler measurement of maternal uterine and fetal umbilical arteries, and evaluate how the system compares with subjective assessment of the images. METHODS: As part of the quality control strategy for the INTERGROWTH-21st Project, we developed a scoring system based on six predefined criteria for uterine and umbilical artery pulsed wave Doppler measurement. The scoring system was compared to subjective assessment, which consisted simply of classifying an image as acceptable or unacceptable...
May 28, 2018: Ultrasound in Obstetrics & Gynecology
https://www.readbyqxmd.com/read/29808509/growth-patterns-and-cerebro-placental-hemodynamics-in-fetuses-with-congenital-heart-disease
#16
M J Mebius, S A B Clur, A S Vink, E Pajkrt, W S Kalteren, E M W Kooi, A F Bos, G J du Marchie Sarvaas, C M Bilardo
OBJECTIVES: Congenital heart disease (CHD) has been associated with a reduced fetal head circumference (HC). The underlying pathophysiological background remains undetermined. We aimed to define trends in fetal growth and cerebro-placental Doppler flow, and to investigate the association between head growth and cerebro-placental flow in fetuses with CHD. METHODS: Fetuses with CHD and serial measurements of HC, abdominal circumference (AC), middle cerebral artery pulsatility index (MCA-PI), umbilical artery pulsatility index (UA-PI), and cerebro-placental ratio (CPR) were included...
May 28, 2018: Ultrasound in Obstetrics & Gynecology
https://www.readbyqxmd.com/read/29808240/-fetal-magnetic-resonance-imaging
#17
REVIEW
W Reith, A Haussmann, U Yilmaz
CLINICAL ISSUE: The most important prenatal screening method for the detailed assessment of the fetus is ultrasound, which is often combined with colour-coded Doppler sonography. In case of sonographically diagnosed fetal pathologies or technical limitations of the ultrasound, supplementary diagnostics may be necessary. STANDARD RADIOLOGICAL METHODS: With fast MRI sequences, fetal MRI screening provides important additional information especially with regard to the most common congenital pathologies-central nervous system (CNS) pathologies (agenesis of the corpus callosum, ventriculomegaly, arachnoid cyst, pathologies of the posterior cranial fossa, dysfunction of the gyrification)...
May 28, 2018: Der Radiologe
https://www.readbyqxmd.com/read/29803894/impact-of-selective-serotonin-reuptake-inhibitors-ssris-during-pregnancy-and-lactation-a-focus-on-short-and-long-term-vascular-effects
#18
REVIEW
S Zullino, T Simoncini
SSRIs are the first choice for the treatment of mood disorders during pregnancy and lactation. Despite the known side effects, the benefits/risks balance suggests their use. Hypertensive disorders of pregnancy (HDP) and Intrauterine growth restriction (IUGR) are the main vascular effects of these drugs, with mechanisms that involves endothelial dysfunction in feto-placental system. These data are supported by animal models, even if preliminary findings are not yet adequately supported by molecular and clinical data...
May 24, 2018: Vascular Pharmacology
https://www.readbyqxmd.com/read/29799131/longitudinal-reference-ranges-for-serial-measurements-of-myocardial-performance-index-mpi-by-conventional-and-pulsed-wave-tissue-doppler-in-monochorionic-diamniotic-twins-at-17-to-26-weeks-of-gestation
#19
Cristina Zanardini, Anna Fichera, Stefano Calza, Veronica Cappa, Rossana Orabona, Tiziana Frusca, Federico Prefumo
OBJECTIVE: To describe the longitudinal changes of fetal myocardial performance index (MPI) measured by conventional Doppler (MPI) and by pulsed-wave tissue Doppler (MPI') based on a prospective cohort of uncomplicated monochorionic diamniotic twin. METHOD: Single-center observational study. We measured MPI and MPI' in the right and left ventricles 3 times between 17 and 26 weeks of gestation. Second-degree fractional polynomials were built to obtain the best fitting curves in relation to gestational age (weeks) for each parameter...
May 24, 2018: Prenatal Diagnosis
https://www.readbyqxmd.com/read/29797505/fetal-lung-size-after-thoracoamniotic-shunting-reflects-survival-in-primary-fetal-hydrothorax-with-hydrops
#20
Fumio Suyama, Katsusuke Ozawa, Kohei Ogawa, Rika Sugibayashi, Seiji Wada, Haruhiko Sago
AIM: To assess the role of lung size and abnormal Doppler findings in the umbilical artery (UA) in determining the outcomes of fetuses with primary fetal hydrothorax (FHT) associated with hydrops who underwent thoracoamniotic shunting (TAS). METHODS: This was a retrospective study at a single center. We included cases of primary FHT with hydrops who underwent TAS at our hospital between 2004 and 2016. We assessed the relationship between mortality until 28 days after birth and ultrasound findings, including absent or reversed end-diastolic velocity (AREDV) in the UA and the lung-to-thorax transverse area ratio (LTR), before and after TAS...
May 23, 2018: Journal of Obstetrics and Gynaecology Research
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