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Fetal doppler velocimetry

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https://www.readbyqxmd.com/read/27925050/fetal-thrombotic-vasculopathy-a-case-report-and-literature-review
#1
Ana Berquo Peleja, Silvio Martinelli, Renata Lopes Ribeiro, Roberto Eduardo Bittar, Regina Schultz, Rossana Pulcineli Vieira Francisco
Introduction: Fetal thrombotic vasculopathy is a recently described placental alteration with varying degrees of involvement and often associated with adverse perinatal outcomes. The diagnosis is made histologically and therefore is postnatal, which makes it a challenge in clinical practice. Method: Case report and review of literature on the subject. Results: The present case refers to a pregnant woman presenting fetal growth restriction, with poor obstetrical past, and sent late to our service...
October 2016: Revista da Associação Médica Brasileira
https://www.readbyqxmd.com/read/27651722/predictive-values-of-maternal-serum-papp-a-level-uterine-artery-doppler-velocimetry-and-fetal-biometric-measurements-for-poor-pregnancy-and-poor-neonatal-outcomes-in-pregnant-women
#2
Serdar Balcı
OBJECTIVE: To determine predictive values of maternal serum PAPP-A (msPAPP-A) levels, uterine artery Doppler velocimetry, and fetal biometric measurements (FBMs) for poor pregnancy and poor neonatal outcomes. MATERIAL AND METHODS: This prospective cohort study was conducted on singleton pregnancies followed until delivery. Pregnancy and neonatal outcomes were evaluated with respect to the msPAPP-A level at the 11(th)-14(th) weeks, uterine artery Doppler velocimetry at the 15(th)-18(th) weeks, and FBMs at the 20(th)-24(th) and 28(th)-32(nd) weeks of pregnancy...
2016: Journal of the Turkish German Gynecological Association
https://www.readbyqxmd.com/read/27651594/which-is-superior-doppler-velocimetry-or-non-stress-test-or-both-in-predicting-the-perinatal-outcome-of-high-risk-pregnancies
#3
Vijaya Subramanian, Janani Venkat, Mohana Dhanapal
AIM AND OBJECTIVES: To analyze which is superior, Doppler velocimetry or non-stress test or both by means of categorization into four groups and comparing the prediction of perinatal outcome in high-risk pregnancies like anemia, hypertensive disorders of pregnancies. MATERIALS AND METHODS: This was a prospective study conducted at the Department of Obstetrics and Gynaecology, ISO KGH, Madras Medical College, Chennai, in the year 2014. Two hundred high-risk pregnancies like anemia, hypertensive disorders of pregnancy were included in the study...
October 2016: Journal of Obstetrics and Gynaecology of India
https://www.readbyqxmd.com/read/27538552/maternal-and-fetal-doppler-velocimetry-in-women-diagnosed-with-fear-of-childbirth
#4
A N Aksoy, F Aydin, S K Kucur, I Gözükara
AIM: This study aimed to investigate maternal and fetal Doppler flow parameters in term pregnant women diagnosed with fear of childbirth (FOC). MATERIALS AND METHODS: Women between 20 and 40 years with full-term singleton pregnancies (≥37 gestational weeks) were included in the study. All patients were questioned with Turkish form of Wijma Delivery Expectancy/Experience Questionnaire (W-DEQ) version A. Women with W-DEQ scores ≥85 were defined as FOC. Forty women diagnosed with FOC (FOC group) and 45 women with W-DEQ scores <85 (control group) underwent Doppler waveform analysis and the pulsatility index (PI) and resistance index (RI) values for uterine, umbilical, and mid cerebral arteries were recorded...
September 2016: Nigerian Journal of Clinical Practice
https://www.readbyqxmd.com/read/27533101/brain-volume-and-doppler-velocimetry-in-growth-restricted-small-for-gestational-age-and-appropriate-for-gestational-age-fetuses
#5
Hala A E Wahab Abdel Latif, Hassan Mostafa Gaafar, Ghada Abdel Fattah Abdel Moety, Doaa Salah Eldin Mahmoud, Nihal Mohamed El Rifai
Objectives This study aims to detect possible differences in fetal brain volumes between growth-restricted fetuses (FGR), small-for-gestational-age (SGA) fetuses with normal Doppler indices, and appropriate-for-gestational-age fetuses (AGA). Study Design Three-dimensional measurements of fetal brain volume and umbilical artery and middle cerebral artery (MCA) pulsatility index (PI) and resistance index (RI) were made in 80 AGA fetuses, 68 SGA fetuses with normal Doppler indices, and 68 FGR with brain-sparing effect between 32 and 36 weeks of gestation...
August 17, 2016: American Journal of Perinatology
https://www.readbyqxmd.com/read/27524445/perinatal-asphyxia-from-the-obstetric-standpoint-diagnosis-and-interventions
#6
REVIEW
Christina A Herrera, Robert M Silver
Perinatal asphyxia is a general term referring to neonatal encephalopathy related to events during birth. Asphyxia refers to a deprivation of oxygen for a duration sufficient to cause neurologic injury. Most cases of perinatal asphyxia are not necessarily caused by intrapartum events but rather associated with underlying chronic maternal or fetal conditions. Of intrapartum causes, obstetric emergencies are the most common and are not always preventable. Screening high-risk pregnancies with ultrasound, Doppler velocimetry, and antenatal testing can aid in identifying fetuses at risk...
September 2016: Clinics in Perinatology
https://www.readbyqxmd.com/read/27512094/numerical-investigation-of-the-hemodynamics-in-the-fetal-umbilical-vein-ductus-venosus-based-on-%C3%A2-experimental-data
#7
Taraneh Rezaee, Kamran Hassani
Abortion of the fetus due to a disease has been dramatically increased in the last decades. There is a still lack of knowledge on the various types of diseases which lead fetus to a vulnerable circumstance. The transport of oxygenated blood from the placenta to the human fetus has been an important clinical feature in Doppler velocimetry studies, especially the Ductus Venosus (DV). The DV connects intra-abdominal portion of the umbilical vein and the Inferior Vena Cava (IVC) at the inlet of the right atrium and is, therefore, important when examining the fetus state of health...
August 10, 2016: Bioscience Reports
https://www.readbyqxmd.com/read/27509872/can-maternal-fetal-hemodynamics-influence-prenatal-development-in-dogs
#8
Luana Azevedo de Freitas, Gustavo Lobato Mota, Herlon Victor Rodrigues Silva, Cibele Figueira Carvalho, Lúcia Daniel Machado da Silva
The goals of this study were to report embryonic and fetal ultrasound changes and compare blood flow of uteroplacental and umbilical arteries of normal and abnormal conceptus. Accordingly, from the day of mating or artificial insemination, all fetuses in 60 pregnancies were evaluated weekly. According to the ultrasound findings, the gestational age was determined and the conceptuses were divided into normal or abnormal (embryonic and fetal abnormalities). The two-dimensional ultrasound assessment consists of measuring and evaluating the echogenicity of conceptus and extra-fetal structures...
September 2016: Animal Reproduction Science
https://www.readbyqxmd.com/read/27442416/doppler-velocimetry-of-the-uterine-arteries-an-early-screening-test-for-miscarriage
#9
Ilian Trayanov, Elena Dimitrakova
INTRODUCTION: According to the WHO, miscarriage is defined as "the loss of a pregnancy before the age of 20 weeks of gestation or fetal weight below 500 g". Only 50-60% of all conceptions fail to survive 20 weeks of gestation. It is estimated that about 75% of all unsuccessful conceptions are due to failed implantation and are not reported as spontaneous abortions. MATERIAL AND METHODS: We performed a prospective observational study at the Department of Obstetrics and Gynecology of the Medical University Plovdiv between October 2014 and September 2015...
2016: Prilozi (Makedonska Akademija Na Naukite i Umetnostite. Oddelenie za Medicinski Nauki)
https://www.readbyqxmd.com/read/27438567/reduced-placental-volume-and-flow-in-severe-growth-restricted-fetuses
#10
Renata Montes Dourado Abulé, Lisandra Stein Bernardes, Giovana Farina Doro, Seizo Miyadahira, Rossana Pulcinelli Vieira Francisco
OBJECTIVES: To evaluate placental volume and vascular indices in pregnancies with severe fetal growth restriction and determine their correlations to normal reference ranges and Doppler velocimetry results of uterine and umbilical arteries. METHODS: Twenty-seven fetuses with estimated weights below the 3rd percentile for gestational age were evaluated. Placental volume and vascular indices, including vascularization, flow, and vascularization flow indices, were measured by three-dimensional ultrasound using a rotational technique and compared to a previously described nomogram...
July 2016: Clinics
https://www.readbyqxmd.com/read/27276861/doppler-changes-as-the-earliest-parameter-in-fetal-surveillance-to-detect-fetal-compromise-in-intrauterine-growth-restricted-fetuses
#11
Saloni Bansal, Deepika Deka, Vatsla Dhadwal, Rajiv Mahendru
INTRODUCTION: It is estimated that 3-10% of infants are growth restricted. Growth disturbances may have long-term issues. Doppler allows insight into the fetal response to intrauterine stress. OBJECTIVE: The aim of this study was to detect fetal compromise in intrauterine growth-restricted (IUGR) fetuses by means of biophysical profile (BPP) vis-à-vis Doppler velocimetry studies of the fetal umbilical artery, and to find out which of the two is a better and earlier predictor of fetal compromise...
January 2016: Srpski Arhiv za Celokupno Lekarstvo
https://www.readbyqxmd.com/read/27197939/use-of-doppler-velocimetry-in-diagnosis-and-prognosis-of-intrauterine-growth-restriction-iugr-a-review
#12
I Aditya, V Tat, A Sawana, A Mohamed, R Tuffner, T Mondal
Intrauterine growth restriction (IUGR) is a condition which has been difficult to assess at an early stage, resulting in the delivery of children who have poor genetic growth potential. Currently, IUGR classification is based upon the system of ultrasound biometry. Doppler velocimetry allows the measurement of hemodynamic flow of major fetal vessels, comparing the flow indices and patterns of normal and IUGR cases. In this review, the effectiveness of Doppler velocimetry in assessing blood flow in major vessels including the umbilical artery, ductus venosus, and middle cerebral artery was studied for both diagnostic and prognostic screening of IUGR...
May 18, 2016: Journal of Neonatal-perinatal Medicine
https://www.readbyqxmd.com/read/27103540/associations-of-maternal-personal-exposure-to-air-pollution-on-fetal-weight-and-fetoplacental-doppler-a-prospective-cohort-study
#13
Mariana A Carvalho, Lisandra S Bernardes, Karen Hettfleisch, Luciana D M Pastro, Sandra E Vieira, Silvia R D M Saldiva, Paulo H N Saldiva, Rossana P V Francisco
We determined the influence of maternal air pollution exposure during each trimester of pregnancy on fetal and birth weight and fetoplacental hemodynamics. In total, 366 women with singleton pregnancies were prospectively followed in the city of São Paulo, Brazil. Nitrogen dioxide (NO2) and ozone (O3) were measured during each trimester using passive personal samplers. We evaluated fetal weight and Doppler velocimetry data from the umbilical, middle cerebral, and uterine arteries in the 3rd trimester, and birth weight...
July 2016: Reproductive Toxicology
https://www.readbyqxmd.com/read/26961588/fetal-vascular-adaptation-before-and-after-treatment-of-severe-maternal-anemia-in-pregnancy
#14
Eram Ali, Manisha Kumar, Sayyed E H Naqvi, Shubha S Trivedi, Anuradha Singh
OBJECTIVES: To use color Doppler ultrasonography indices to study the effects on fetal circulation of treating severe maternal anemia. METHODS: A prospective cohort study enrolled patients who were at 30-34weeks of pregnancy and had hemoglobin levels below 70g/L between November 1, 2011 and March 31, 2013 at a hospital in New Delhi, India. A control group consisting of patients with the same duration of pregnancy and with hemoglobin levels above 110g/L was included...
June 2016: International Journal of Gynaecology and Obstetrics
https://www.readbyqxmd.com/read/26907381/the-relationship-between-human-placental-morphometry-and-ultrasonic-measurements-of-utero-placental-blood-flow-and-fetal-growth
#15
N Salavati, U Sovio, R Plitman Mayo, D S Charnock-Jones, G C S Smith
INTRODUCTION: Ultrasonic fetal biometry and arterial Doppler flow velocimetry are widely used to assess the risk of pregnancy complications. There is an extensive literature on the relationship between pregnancy outcomes and the size and shape of the placenta. However, ultrasonic fetal biometry and arterial Doppler flow velocimetry have not previously been studied in relation to postnatal placental morphometry in detail. METHODS: We conducted a prospective cohort study of nulliparous women in The Rosie Hospital, Cambridge (UK)...
February 2016: Placenta
https://www.readbyqxmd.com/read/26827875/atypical-twin-to-twin-transfusion-syndrome-prevalence-in%C3%A2-a%C3%A2-population%C3%A2-undergoing-fetoscopic-laser-ablation-of-communicating%C3%A2-placental-vessels
#16
Bettina Paek, Melissa Dorn, Martin Walker
BACKGROUND: The diagnosis of twin-to-twin transfusion syndrome (TTTS) usually relies the presence of polyhydramnios in one sac with concomitant oligohydramnios in the other sac in a monochorionic diamniotic twin pregnancy. However, TTTS does not always show a linear progression and may present with cardiac compromise or critically abnormal Doppler velocimetry in either fetus before fluid measurements meet the typically used cutoff. OBJECTIVE: The aim of this study was to investigate the prevalence of atypical presentations of TTTS in a population undergoing laser fetoscopy...
July 2016: American Journal of Obstetrics and Gynecology
https://www.readbyqxmd.com/read/26428491/role-of-the-fetoplacental-endothelium-in-fetal-growth-restriction-with-abnormal-umbilical-artery-doppler-velocimetry
#17
REVIEW
Emily J Su
Growth-restricted fetuses with absent or reversed end-diastolic velocities in the umbilical artery are at substantially increased risk for adverse perinatal and long-term outcome, even in comparison to growth-restricted fetuses with preserved end-diastolic velocities. Translational studies show that this Doppler velocimetry correlates with fetoplacental blood flow, with absent or reversed end-diastolic velocities signifying abnormally elevated resistance within the placental vasculature. The fetoplacental vasculature is unique in that it is not subject to autonomic regulation, unlike other vascular beds...
October 2015: American Journal of Obstetrics and Gynecology
https://www.readbyqxmd.com/read/26352077/effect-of-antenatal-betamethasone-administration-on-doppler-velocimetry-of-fetal-and-uteroplacental-vessels-a-prospective-study
#18
Atalay Ekin, Cenk Gezer, Ulas Solmaz, Cuneyt Eftal Taner, Mehmet Ozeren, Askin Dogan, Ibrahim Uyar
OBJECTIVES: To examine the effect of antenatal betamethasone administration on Doppler parameters of fetal and uteroplacental circulation. METHODS: Seventy-six singleton pregnancies that received betamethasone therapy were prospectively evaluated. Doppler measurements of pulsatility indices (PI) in fetal umbilical artery (UA), middle cerebral artery (MCA), ductus venosus and maternal uterine arteries were performed before (0 h) and 24, 48, 72 and 96 h after the first dose of betamethasone...
March 2016: Journal of Perinatal Medicine
https://www.readbyqxmd.com/read/26303962/the-use-of-angiogenic-biomarkers-in-maternal-blood-to-identify-which-sga-fetuses-will-require-a-preterm-delivery-and-mothers-who-will-develop-pre-eclampsia
#19
Tinnakorn Chaiworapongsa, Roberto Romero, Amy E Whitten, Steven J Korzeniewski, Piya Chaemsaithong, Edgar Hernandez-Andrade, Lami Yeo, Sonia S Hassan
OBJECTIVE: To determine (1) whether maternal plasma concentrations of angiogenic and anti-angiogenic factors can predict which mothers diagnosed with "suspected small for gestational age fetuses (sSGA)" will develop pre-eclampsia (PE) or require an indicated early preterm delivery (≤ 34 weeks of gestation); and (2) whether risk assessment performance is improved using these proteins in addition to clinical factors and Doppler parameters. METHODS: This prospective cohort study included women with singleton pregnancies diagnosed with sSGA (estimated fetal weight <10th percentile) between 24 and 34 weeks of gestation (n = 314)...
2016: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/26279411/comparison-between-transdermal-nitroglycerin-and-sildenafil-citrate-in-intrauterine-growth-restriction-effects-on-uterine-umbilical-and-fetal-middle-cerebral-artery-pulsatility-indices
#20
A Trapani, L F Gonçalves, T F Trapani, M J Franco, R N Galluzzo, M M S Pires
OBJECTIVES: To evaluate the effects of transdermal nitroglycerin (GTN) and sildenafil citrate on Doppler velocity waveforms of the uterine (UtA), umbilical (UA) and fetal middle cerebral (MCA) arteries in pregnancies with intrauterine growth restriction (IUGR). METHODS: This was a prospective study of 35 singleton pregnancies (gestational age, 24-31 weeks) with IUGR and abnormal UtA and UA Doppler waveforms. We compared maternal arterial blood pressure and Z-scores of the pulsatility index (PI) of UtA, UA and fetal MCA before and after application of a transdermal GTN patch (average dose, 0...
July 2016: Ultrasound in Obstetrics & Gynecology
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