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Fetal doppler ultrasound

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https://www.readbyqxmd.com/read/29753694/physiological-adaptation-of-the-growth-restricted-fetus
#1
REVIEW
Karel Maršál
The growth-restricted fetus in utero is exposed to a hostile environment and suffers undernutrition and hypoxia. To cope with the stress, the fetus changes its physiological functions. These adaptive changes aid intrauterine survival; however, they can lead to permanent functional and structural changes that can contribute to the development of serious chronic diseases later in life. Epigenetic mechanisms are an important part of the pathophysiological processes behind this "developmental origin of adult diseases...
February 24, 2018: Best Practice & Research. Clinical Obstetrics & Gynaecology
https://www.readbyqxmd.com/read/29742984/maternal-serum-endocan-concentration-in-pregnancies-complicated-by-intrauterine-growth-restriction
#2
Agata Szpera-Gozdziewicz, Katarzyna Kosicka, Tomasz Gozdziewicz, Mariola Krzyscin, Przemyslaw Wirstlein, Anna Siemiatkowska, Franciszek Glowka, Ewa Wender-Ozegowska, Grzegorz H Breborowicz
OBJECTIVES: Endocan plays a role in the development of vascular tissue in health and disease and is an indicator of endothelial cells activation and angiogenesis. Therefore, this study aimed to investigate the relationship between maternal endocan serum level and intrauterine growth restriction (IUGR) as well as ultrasound Doppler flow measurements indicating placental insufficiency. METHODS: This study included a group of women with IUGR (n = 37) and a group of healthy pregnant women (controls, n = 37)...
January 1, 2018: Reproductive Sciences
https://www.readbyqxmd.com/read/29740835/factors-associated-to-early-intrauterine-fetal-demise-after-laser-for-ttts-by-pre-operative-fetal-heart-and-doppler-ultrasound
#3
Amélie Delabaere, France Leduc, Quentin Reboul, Florent Fuchs, Sandrine Wavrant, Johanne Dubé, Jean-Claude Fouron, François Audibert
OBJECTIVE: To determine the prognostic value of fetal Doppler and echocardiographic parameters for intra-uterine fetal demise (IUFD) within 24 hours and within one week after laser coagulation in monochorionic pregnancies complicated by twin-twin transfusion syndrome (TTTS). METHOD: This retrospective study correlated the preoperative hemodynamic and echocardiography parameters to the outcome in fetuses with TTTS undergoing laser therapy. RESULTS: One hundred and twelve laser coagulations were performed between February 2006 and June 2015...
May 9, 2018: Prenatal Diagnosis
https://www.readbyqxmd.com/read/29732592/transcranial-doppler-ultrasound-in-peninsular-arab-patients-with-sickle-cell-disease
#4
Adekunle Adekile, Meaad Hassan, Akram Asbeutah, Mohamed Al-Hinai, Omar Trad, Nayef Farhan
OBJECTIVES: Transcranial Doppler ultrasound is used to identify patients with sickle cell disease (SCD) at risk for stroke. We performed transcranial Doppler studies in patients from 4 countries in the Arabian Peninsula (Kuwait, Oman, Iraq, and United Arab Emirates) to document the prevalence of abnormal transcranial Doppler findings. METHODS: The patients were recruited from outpatient clinics and studied in a steady state. Transcranial Doppler examinations were performed with standard equipment by experienced operators...
May 6, 2018: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/29723486/doppler-ultrasound-can-be-used-to-monitor-umbilical-arterial-blood-flow-in-lightly-sedated-pigs-at-multiple-gestational-ages
#5
Claire Stenhouse, Peter Tennant, W Colin Duncan, Cheryl J Ashworth
Doppler ultrasound was performed under moderate sedation (ketamine and azaperone) for 30min to monitor umbilical arterial (UA) blood flow in one uterine horn of Large White×Landrace gilts (n=23) at Gestational Days (GD) 30, 45, 60 and 90. Gilts were scanned before they were killed to examine relationships between litter size, sex ratio and five UA parameters (peak systolic velocity (PSV), end diastolic velocity (EDV), A/B (PSV to EDV) ratio, fetal heart rate (FHR) and resistance index (RI)). In gilts in which scans were obtained from all fetuses in the scanned horn, relationships between UA parameters, and fetal weight and sex were examined...
May 4, 2018: Reproduction, Fertility, and Development
https://www.readbyqxmd.com/read/29706899/development-of-the-human-placenta-and-fetal-heart-synergic-or-independent
#6
REVIEW
Graham J Burton, Eric Jauniaux
The placenta is the largest fetal organ, and toward the end of pregnancy the umbilical circulation receives at least 40% of the biventricular cardiac output. It is not surprising, therefore, that there are likely to be close haemodynamic links between the development of the placenta and the fetal heart. Development of the placenta is precocious, and in advance of that of the fetus. The placenta undergoes considerable remodeling at the end of the first trimester of pregnancy, and its vasculature is capable of adapting to environmental conditions and to variations in the blood supply received from the mother...
2018: Frontiers in Physiology
https://www.readbyqxmd.com/read/29702988/enteritis-as-initial-manifestation-of-systemic-lupus-erythematosus-in-early-pregnancy-a-case-report
#7
Anna Maria Bellou, Dominik Bös, Guido Kukuk, Ulrich Gembruch, Waltraut Maria Merz
RATIONAL: Lupus enteritis is a rare, severe complication of systemic lupus erythematosus (SLE). We report of a patient who presented with enteritis as manifestation of new-onset SLE during the first trimester of pregnancy. PATIENTS CONCERNS: The 23-year nulliparous patient was admitted to a district hospital with abdominal pain, nausea, vomiting and bloody diarrhea at a gestational age (GA) of 10 weeks. Her symptoms improved with symptomatic treatment and she was discharged a few days later...
April 2018: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29685078/prelabour-myocardial-deformation-and-cardiac-output-in-fetuses-that-develop-intrapartum-compromise-at-term-a-prospective-observational-study
#8
Amal A Alsolai, Larissa N Bligh, Ristan M Greer, Alexander Gooi, Sailesh Kumar
OBJECTIVE: Redistribution of cardiac output is responsible for the "brain sparing" effect seen during periods of acute or chronic fetal stress. We investigated the relationship between prelabour cardiac function in fetuses that subsequently developed intrapartum fetal compromise (IFC). METHODS: A blinded, prospective, observational, cohort study, at Mater Mother's Hospital, Brisbane, Australia. A cohort of 284 women with uncomplicated singleton pregnancies underwent ultrasound every 2 weeks from 36 weeks until delivery...
April 23, 2018: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/29626976/chronic-histiocytic-intervillositis-clinical-biochemical-and-radiological-findings-an-observational-study
#9
Lawrence Koby, Sarah Keating, Ann Kinga Malinowski, Rohan D'Souza
INTRODUCTION: Chronic histiocytic intervillositis (CHI) of the placenta although rare, has a high recurrence rate, is associated with serious adverse pregnancy outcomes and has no available treatment. This study aims to determine clinical, biochemical and radiological factors associated with CHI, to guide management of subsequent pregnancies. METHODS: This retrospective observational study included consecutive cases with a histopathologic diagnosis of CHI after 18 weeks of gestation, between 2001 and 2014, and no controls...
April 2018: Placenta
https://www.readbyqxmd.com/read/29621786/relationship-between-the-von-willebrand-factor-plasma-concentration-and-ultrasonographic-doppler-findings-in-pregnancies-complicated-by-hypertensive-disorders-a-pilot-study
#10
Agata Szpera-Gozdziewicz, Tomasz Gozdziewicz, Maciej Boruczkowski, Grzegorz Dworacki, Grzegorz H Breborowicz
BACKGROUND/AIMS: Recent evidence suggests that impaired cytotrophoblast proliferation and migration are major factors responsible for the development of hypertension in pregnancy. Studies report that von Willebrand factor (vWf) is a specific endothelial damage plasma marker. The aim of this study was to evaluate the relationship between vWf maternal plasma concentration and maternal and fetal Doppler flow measurements in pregnancies complicated by hypertension. It may provide additional insight into the pathophysiology of pregnancy-related hypertension and show the potential method for disease prevention and therapy...
2018: Gynecologic and Obstetric Investigation
https://www.readbyqxmd.com/read/29573498/correlation-between-fetoplacental-dopplers-and-cardiac-function-in-term-fetuses
#11
Amal A Alsolai, Larissa N Bligh, Ristan M Greer, Sailesh Kumar
OBJECTIVE: Redistribution of cardiac output is responsible for the "brain sparing" effect seen during periods of fetal stress. Our aim was to prospectively investigate the correlation between feto-placental Dopplers and cardiac function. METHODS: This prospective, observational study included normotensive women with appropriately grown, non-anomalous, singleton pregnancies. Participants underwent fortnightly ultrasounds from 36 weeks' gestation and intrapartum and neonatal outcomes were recorded...
March 24, 2018: Ultrasound in Obstetrics & Gynecology
https://www.readbyqxmd.com/read/29531565/evaluation-of-the-predictive-value-of-fetal-doppler-ultrasound-for-neonatal-outcome-from-the-36-th-week-of-pregnancy
#12
Zahra Laleh Eslamian, Elahe Zarean, Maryam Moshfeghi, Zahra Heidari
Background: Early prediction of adverse neonatal outcome would be possible by Doppler impedance indices of middle cerebral artery (MCA), umbilical artery (UmA), and descending aortal artery (AO) that result in decrease neonatal morbidity and mortality rate. The aim of the present study was a determination of optimal value for the ratio of MCA to descending aorta blood flow (MCA/AO) impedance indices and its comparison with the ratio of MCA to UmA (MCA/UmA) impedance indices and their relationship with neonatal outcome...
2018: Journal of Research in Medical Sciences: the Official Journal of Isfahan University of Medical Sciences
https://www.readbyqxmd.com/read/29530064/dynamic-fetal-cardiovascular-magnetic-resonance-imaging-using-doppler-ultrasound-gating
#13
Fabian Kording, Jin Yamamura, Manuela Tavares de Sousa, Christian Ruprecht, Erik Hedström, Anthony H Aletras, P Ellen Grant, Andrew J Powell, Kai Fehrs, Gerhard Adam, Hendrik Kooijman, Bjoern P Schoennagel
BACKGROUND: Fetal cardiovascular magnetic resonance (CMR) imaging may provide a valuable adjunct to fetal echocardiography in the evaluation of congenital cardiovascular pathologies. However, dynamic fetal CMR is difficult due to the lack of direct in-utero cardiac gating. The aim of this study was to investigate the effectiveness of a newly developed Doppler ultrasound (DUS) device in humans for fetal CMR gating. METHODS: Fifteen fetuses (gestational age 30-39 weeks) were examined using 1...
March 12, 2018: Journal of Cardiovascular Magnetic Resonance
https://www.readbyqxmd.com/read/29498037/prenatal-diagnosis-of-persistent-right-umbilical-vein-incidence-and-clinical-impact-a-prospective-study
#14
Arkadiusz Krzyżanowski, Dariusz Swatowski, Tomasz Gęca, Maciej Kwiatek, Aleksandra Stupak, Sławomir Woźniak, Anna Kwaśniewska
BACKGROUND: Persistent right umbilical vein (PRUV) is usually an isolated finding but it may be accompanied by other fetal malformations. AIMS: We aimed to determine the incidence of prenatally diagnosed PRUV in a referral population, assess the neonatal outcome and discuss the findings together with those from previous publications. MATERIALS AND METHODS: A total of 2360 women with low-risk singleton pregnancies were examined in the second and third trimesters...
March 2, 2018: Australian & New Zealand Journal of Obstetrics & Gynaecology
https://www.readbyqxmd.com/read/29482879/fetal-biometry-relevance-in-obstetrical-practice
#15
REVIEW
Bronius Žaliūnas, Daiva Bartkevičienė, Gražina Drąsutienė, Algirdas Utkus, Juozas Kurmanavičius
Ultrasound imaging in obstetrics and gynecology dates back to 1958 when The Lancet published the first article about the use of ultrasonography for fetal and gynecological assessments. It is now almost inconceivable, 60 years later, to think of effective performance in obstetrics and gynecology without the variety of ultrasound, for example, real time imaging, power and color Doppler, 3D/4D ultrasonography, etc. Such examinations facilitate the assessment of intrauterine fetal growth and development during pregnancy, provide alerts about the risk of pre-eclampsia and preterm birth, help identify anatomic reasons for infertility, diagnose ectopic pregnancies, uterine, ovary and tubal pathology...
2017: Medicina
https://www.readbyqxmd.com/read/29478342/outcomes-in-patients-with-early-onset-fetal-growth-restriction-without-fetal-or-genetic-anomalies
#16
Simi Gupta, Mackenzie Naert, Jennifer Lam-Rachlin, Ana Monteagudo, Andrei Rebarber, Daniel Saltzman, Nathan S Fox
OBJECTIVE: Early-onset fetal growth restriction is associated with poor pregnancy outcomes, but frequently is due to fetal structural or chromosomal abnormalities. The objective of this study was to determine outcomes in patients with early-onset fetal growth restriction without diagnosed fetal or genetic anomalies and to identify additional risk factors for poor outcomes in these patients. METHODS: This was retrospective cohort study of singleton pregnancies in women with early-onset growth restriction defined as a sonographic estimated fetal weight <10% diagnosed between 16-28 weeks' gestation...
March 7, 2018: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/29470342/acog-practice-bulletin-no-192-management-of-alloimmunization-during-pregnancy
#17
(no author information available yet)
When any fetal blood group factor inherited from the father is not possessed by the mother, antepartum or intrapartum fetal-maternal bleeding may stimulate an immune reaction in the mother. Maternal immune reactions also can occur from blood product transfusion. The formation of maternal antibodies, or "alloimmunization," may lead to various degrees of transplacental passage of these antibodies into the fetal circulation. Depending on the degree of antigenicity and the amount and type of antibodies involved, this transplacental passage may lead to hemolytic disease in the fetus and neonate...
March 2018: Obstetrics and Gynecology
https://www.readbyqxmd.com/read/29470338/acog-practice-bulletin-no-192-summary-management-of-alloimmunization-during-pregnancy
#18
(no author information available yet)
When any fetal blood group factor inherited from the father is not possessed by the mother, antepartum or intrapartum fetal-maternal bleeding may stimulate an immune reaction in the mother. Maternal immune reactions also can occur from blood product transfusion. The formation of maternal antibodies, or "alloimmunization," may lead to various degrees of transplacental passage of these antibodies into the fetal circulation. Depending on the degree of antigenicity and the amount and type of antibodies involved, this transplacental passage may lead to hemolytic disease in the fetus and neonate...
March 2018: Obstetrics and Gynecology
https://www.readbyqxmd.com/read/29467359/evaluation-of-a-portable-doppler-ultrasound-gating-device-for-fetal-cardiac-mr-imaging-initial-results-at-1-5t-and-3t
#19
Fabian Kording, Bjoern P Schoennagel, Manuela Tavares de Sousa, Kai Fehrs, Gerhard Adam, Jin Yamamura, Christian Ruprecht
PURPOSE: Fetal cardiac MRI has the potential to play an important role in the assessment of fetal cardiac pathologies, but it is up to now not feasible due to a missing gating method. The purpose of this work was the evaluation of Doppler ultrasound (DUS) for external fetal cardiac gating with regard to compatibility, functionality, and reliability. Preliminary results were assessed performing fetal cardiac MRI. METHODS: An MRI conditional DUS device was developed to obtain a gating signal from the fetal heart...
February 21, 2018: Magnetic Resonance in Medical Sciences: MRMS
https://www.readbyqxmd.com/read/29447050/added-value-of-cerebro-placental-ratio-and-uterine-artery-doppler-at-routine-third-trimester-screening-as-a-predictor-of-sga-and-fgr-in-non-selected-pregnancies
#20
M Rial-Crestelo, R J Martinez-Portilla, A Cancemi, J Caradeux, L Fernandez, A Peguero, E Gratacos, Francesc Figueras
OBJECTIVES: The objective of this study is to determine the added value of cerebroplacental ratio (CPR) and uterine Doppler velocimetry at third trimester scan in an unselected obstetric population to predict smallness and growth restriction. METHODS: We constructed a prospective cohort study of women with singleton pregnancies attended for routine third trimester screening (32+0 -34+6 weeks). Fetal biometry and fetal-maternal Doppler ultrasound examinations were performed by certified sonographers...
March 4, 2018: Journal of Maternal-fetal & Neonatal Medicine
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