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Doppler in obstetrics

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https://www.readbyqxmd.com/read/27868455/identification-of-patients-at-risk-for-preeclampsia-with-the-use-of-uterine-artery-doppler-velocimetry-and-copeptin
#1
Ali Yeşil, Ammar Kanawati, Çağlar Helvacıoğlu, Cihan Kaya, Çağseli Göksu Özgün, Hüseyin Cengiz
PURPOSE: To investigate the relationship between maternal copeptin levels and uterine artery Doppler examination and progress of preeclampsia. MATERIALS AND METHODS: A cross-sectional study was designed with women those were screened at 20 + 0 - 24 + 6 weeks' gestation between May 2014 and August 2014. The obstetric records of all normotensive women were examined. Uterine artery Doppler velocimetry results and serum copeptin levels were measured. The patients were divided in two groups according to normal (n = 67) and abnormal uterine artery Doppler (n = 21) findings...
November 21, 2016: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/27845691/non-invasive-evaluation-of-placental-blood-flow-lessons-from-animal-models
#2
Eve Mourier, Anne Tarrade, Jie Duan, Christophe Richard, Charline Bertholdt, Marine Beaumont, Olivier Morel, Pascale Chavatte-Palmer
In human obstetrics, placental vascularisation impairment is frequent as well as linked to severe pathological events (preeclampsia and intra-uterine growth restriction) and there is a need for reliable methods allowing non-invasive evaluation of placental blood flow. Uteroplacental vascularisation is complex and animal models are essential for the technical development and safety assessment of these imaging tools for human clinical use but these techniques can also be applied in the veterinary context. This paper reviews how ultrasound based imaging methods such as 2D and 3D Doppler can provide valuable insight for the exploration of placental blood flow both in humans and animals and how new approaches such as the use of ultrasound contrast agents or ultrafast Doppler may allow to discriminate between maternal (non-pulsatile) and fetal (pulsatile) blood flow in the placenta...
November 14, 2016: Reproduction: the Official Journal of the Society for the Study of Fertility
https://www.readbyqxmd.com/read/27836536/doppler-screening-and-predictors-of-adverse-outcomes-in-high-risk-pregnancies-affected-by-tobacco
#3
Alison Stalzer, Dara Seybold, Deena Hossino, Mike Broce, Byron Calhoun
OBJECTIVE: The purpose of this study was to investigate associations between Doppler measurements and adverse outcomes in an obstetric population with high tobacco use. METHODS: This retrospective study included patients with Doppler data (umbilical systolic/diastolic velocity ratios (S/D), uterine S/D, uterine left/right ratio index (RI)). Receiver operator characteristic curve analysis determined cut-off elevated Doppler indices. Stepwise logistic regression was used to predict adverse outcomes...
November 9, 2016: Reproductive Toxicology
https://www.readbyqxmd.com/read/27825311/criteria-based-audit-to-improve-quality-of-care-of-foetal-distress-standardising-obstetric-care-at-a-national-referral-hospital-in-a-low-resource-setting-tanzania
#4
Andrew H Mgaya, Helena Litorp, Hussein L Kidanto, Lennarth Nyström, Birgitta Essén
BACKGROUND: In Tanzania, substandard intrapartum management of foetal distress contributes to a third of perinatal deaths, and the majority are term deliveries. We conducted a criteria-based audit with feedback to determine whether standards of diagnosis and management of foetal distress would be improved in a low-resource setting. METHODS: During 2013-2015, a criteria-based audit was performed at the national referral hospital in Dar es Salaam. Case files of deliveries with a diagnosis of foetal distress were identified and audited...
November 8, 2016: BMC Pregnancy and Childbirth
https://www.readbyqxmd.com/read/27780536/placental-disease-and-abnormal-umbilical-artery-doppler-waveforms-in-trisomy-21-pregnancy-a-case-control-study
#5
Edward Corry, Fionnuala Mone, Ricardo Segurado, Paul Downey, Peter McParland, Fionnuala M McAuliffe, Eoghan E Mooney
INTRODUCTION: The objectives of this study were firstly to determine the proportion of placental pathology in fetuses affected by trisomy 21 (T21) using current pathological descriptive terminology and secondly to examine if a correlation existed between the finding of an abnormal umbilical artery Doppler (UAD) waveform, the presence of T21 and defined placental pathological categories. METHODS: This case-control study assessed singleton fetuses with karyotypically confirmed trisomy 21 where placental histopathology had been conducted from 2003 to 2015 inclusive, within a university tertiary obstetric centre...
November 2016: Placenta
https://www.readbyqxmd.com/read/27705969/non-invasive-haemodynamic-monitoring-in-pregnancy-a-comparative-study-using-ultrasound-and-bioreactance
#6
Dimuthu Vinayagam, Sophie Bowe, Elaine Sheehan, Basky Thilaganathan, Asma Khalil
BACKGROUND: Due to the importance of cardiovascular dysfunction and advances in the development and use of non-invasive cardiac output (CO) monitoring devices, there is a growing interest in their use in the obstetric population. The aim of this study was to compare two commercially available, non-invasive CO monitors in the assessment of heart rate (HR), stroke volume (SV), CO, cardiac index (CI) and total peripheral resistance (TPR) in an obstetric population. METHODS: This was a prospective, comparative study including two groups...
October 6, 2016: Fetal Diagnosis and Therapy
https://www.readbyqxmd.com/read/27651610/ligating-internal-iliac-artery-success-beyond-hesitation
#7
Abha Singh, Ruchi Kishore, Saveri Sarbhai Saxena
AIM: To study the outcomes, benefits and complications of internal iliac artery ligation in both obstetric and gynecological cases. OBJECTIVE: To study the outcomes, effectiveness and complications of internal iliac artery ligation (IIAL). METHOD: This is an analytical longitudinal study done among women who have undergone internal iliac artery ligation in Dr. BRAMH a tertiary referral center from July 2013 to June 2015. Follow-up was done through color Doppler analysis of pelvic arteries before discharge, after 6 weeks and after 6 months...
October 2016: Journal of Obstetrics and Gynaecology of India
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
#8
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/27576196/evaluation-of-feline-uterine-and-umbilical-arteries-blood-flow-in-a-pharmacologically-induced-abnormal-gestation-model
#9
P G Blanco, R Vercellini, A Rube, R Rodríguez, D O Arias, C Gobello
The aim of this study was to describe resistance index (RI) and systolic/diastolic ratio (S/D ratio) of uterine and umbilical arteries in an experimental model of abnormal pregnancy in felids. On days 30 to 35 (32 ± 2.9) after mating, 20 domestic short-hair pregnant queens were randomly assigned to one of the following treatment groups: a treated group (TG; n = 8), which received 10 mg/kg of aglepristone subcutaneously twice, 24 hours apart, and a control nontreated group (CG; n = 12). M-mode and Doppler ultrasonographic evaluations were performed at the initiation of the treatment (Day 0) and then every other day during 8 days...
August 4, 2016: Theriogenology
https://www.readbyqxmd.com/read/27524445/perinatal-asphyxia-from-the-obstetric-standpoint-diagnosis-and-interventions
#10
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/27495883/prophylactic-bilateral-internal-iliac-artery-balloon-occlusion-in-the-management-of-placenta-accreta-a-36-month-review
#11
Y L Tan, H Suharjono, N L J Lau, H Y Voon
BACKGROUND: The contemporary obstetrician is increasingly put to the test by rising numbers of pregnancies with morbidly adherent placenta. This study illustrates our experience with prophylactic bilateral internal iliac artery occlusion as part of its management. METHODS: Between January 2011 to January 2014, 13 consecutive patients received the intervention prior to scheduled caesarean delivery for placenta accreta. All cases were diagnosed by ultrasonography, color Doppler imaging and supplemented with MRI where necessary...
June 2016: Medical Journal of Malaysia
https://www.readbyqxmd.com/read/27460858/comparison-of-placental-elasticity-in-normal-and-pre-eclamptic-pregnant-women-by-acoustic-radiation-force-impulse-elastosonography
#12
Erbil Karaman, Harun Arslan, Orkun Çetin, Hanιm Güler Şahin, Aydin Bora, Alparslan Yavuz, Sadi Elasan, İbrahim Akbudak
AIM: The aim of this research was to study and compare placental elasticity with acoustic radiation force impulse (ARFI) elastography in pre-eclamptic and normal pregnancies. METHODS: A total of 107 singleton pregnancies in the third trimester (38 healthy control subjects, 34 patients with gestational hypertension, and 35 pre-eclampsia patients) were included in the study. ARFI elastography was used to determine the placental elasticity in the three predetermined regions of the placenta (the fetal edge, maternal edge, and central part of the placenta)...
July 26, 2016: Journal of Obstetrics and Gynaecology Research
https://www.readbyqxmd.com/read/27457513/eular-recommendations-for-women-s-health-and-the-management-of-family-planning-assisted-reproduction-pregnancy-and-menopause-in-patients-with-systemic-lupus-erythematosus-and-or-antiphospholipid-syndrome
#13
L Andreoli, G K Bertsias, N Agmon-Levin, S Brown, R Cervera, N Costedoat-Chalumeau, A Doria, R Fischer-Betz, F Forger, M F Moraes-Fontes, M Khamashta, J King, A Lojacono, F Marchiori, P L Meroni, M Mosca, M Motta, M Ostensen, C Pamfil, L Raio, M Schneider, E Svenungsson, M Tektonidou, S Yavuz, D Boumpas, A Tincani
OBJECTIVES: Develop recommendations for women's health issues and family planning in systemic lupus erythematosus (SLE) and/or antiphospholipid syndrome (APS). METHODS: Systematic review of evidence followed by modified Delphi method to compile questions, elicit expert opinions and reach consensus. RESULTS: Family planning should be discussed as early as possible after diagnosis. Most women can have successful pregnancies and measures can be taken to reduce the risks of adverse maternal or fetal outcomes...
July 25, 2016: Annals of the Rheumatic Diseases
https://www.readbyqxmd.com/read/27453740/velamentous-insertion-of-umbilical-cord-with-vasa-praevia-case-series-and-literature-review
#14
REVIEW
R E Bohîlțea, M M Cîrstoiu, A I Ciuvica, O Munteanu, O Bodean, D Voicu, C A Ionescu
A velamentous umbilical cord is characterized by membranous umbilical vessels at the placental insertion site that are prone to compression and rupture, especially when they are located in the membranes covering the cervical os (vasa praevia). The velamentous insertion of the umbilical cord, with a reported incidence of 1% in singleton pregnancies and 15% in monochorionic twin gestations, has been associated with obstetric complications: fetal growth restriction, prematurity, congenital anomalies, low Apgar scores, fetal bleeding with acute fetal distress and placental retention...
April 2016: Journal of Medicine and Life
https://www.readbyqxmd.com/read/27452445/perinatal-prognosis-of-pregnancies-complicated-by-placental-chronic-villitis-or-intervillositis-of-unknown-etiology-and-combined-lesions-about-a-series-of-178-cases
#15
Christel Nowak, Madeleine Joubert, Frederique Jossic, Agathe Masseau, Mohamed Hamidou, Henri-Jean Philippe, Claudine Le Vaillant
INTRODUCTION: The objective of this work was to evaluate and compare perinatal outcomes of pregnancies complicated by placental chronic intervillositis (CIUE) or villitis (CVUE) of unknown etiology and combined lesions. METHODS: Retrospective study of all cases of significant CVUE and CIUE occurring during a 12-year period in a university tertiary hospital center. Multiple pregnancies, infectious and medical termination of pregnancies (TOP) without intra-uterine growth restriction (IUGR) were excluded...
August 2016: Placenta
https://www.readbyqxmd.com/read/27442416/doppler-velocimetry-of-the-uterine-arteries-an-early-screening-test-for-miscarriage
#16
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/27404120/immediate-versus-deferred-delivery-of-the-preterm-baby-with-suspected-fetal-compromise-for-improving-outcomes
#17
REVIEW
Sarah J Stock, Leanne Bricker, Jane E Norman, Helen M West
BACKGROUND: Immediate delivery of the preterm fetus with suspected compromise may decrease the risk of damage due to intrauterine hypoxia. However, it may also increase the risks of prematurity. OBJECTIVES: To assess the effects of immediate versus deferred delivery of preterm babies with suspected fetal compromise on neonatal, maternal and long-term outcomes. SEARCH METHODS: We searched the Cochrane Pregnancy and Childbirth Group's Trials Register (30 April 2016) and reference lists of retrieved studies...
2016: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/27384326/short-term-exposure-to-urban-air-pollution-and-influences-on-placental-vascularization-indexes
#18
Karen Hettfleisch, Lisandra Stein Bernardes, Mariana Azevedo Carvalho, Luciana Duzolina Manfré Pastro, Sandra Elisabete Vieira, Silvia R D M Saldiva, Paulo Saldiva, Rossana Pulcineli Vieira Francisco
BACKGROUND: It has been widely demonstrated that air pollution can affect human health and that certain pollutant gases lead to adverse obstetric outcomes, such as preeclampsia and fetal growth restriction. OBJECTIVES: To evaluate the influence of individual maternal exposure to air pollution on placental volume and vascularization evaluated in the first trimester of pregnancy. METHODS: This was a cross-sectional study on low-risk pregnant women living in São Paulo, Brazil...
July 6, 2016: Environmental Health Perspectives
https://www.readbyqxmd.com/read/27363399/identification-of-fetal-cardiac-anatomy-and-hemodynamics-a-novel-enhanced-screening-protocol
#19
Ying Zhang, Ai-Lu Cai, Wei-Dong Ren, Ya-Jun Guo, Dong-Yu Zhang, Wei Sun, Yu Wang, Lei Wang, Yue Qin, Li-Ping Huang
BACKGROUND: Prenatal cardiac screening is of great importance as it contributes to appropriate neonatal management and helps parents to make a decision regarding their pregnancy. The aim of our study was to evaluate the efficiency of a newly proposed screening protocol in the detection of fetal congenital heart disease (CHD). METHODS: This was a prospective study. A total of 52 cases of confirmed CHD fetuses and 248 cases of randomly selected normal fetuses were included in the study...
2016: BMC Pregnancy and Childbirth
https://www.readbyqxmd.com/read/27314436/using-doppler-ultrasound-of-the-uterine-and-umbilical-arteries-and-disordered-angiogenesis-markers-sflt-1-plgf-in-unified-monitoring-of-ischemic-placental-syndrome-patients
#20
Sebastian Kwiatkowski, Ewa Kwiatkowska, Rafał Rzepka, Barbara Dołegowska, Andrzej Torbe, Agata Bartosik-Sławińska
OBJECTIVE: The shared pathogenesis of placental ischemia entitles us to create a single treatment model. We attempted to develop a unified method for monitoring ischemic placental syndrome patients using Doppler ultrasound of the uterine and umbilical arteries and disordered angiogenesis markers sFlt-1 and PlGF. MATERIAL AND METHODS: 182 pregnant women suffering from the ischemic placental syndrome were divided into four groups depending on the severity of their lesions revealed in the Doppler ultrasound examination and weeks of pregnancy...
November 2016: Hypertension in Pregnancy
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