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Doppler newborn

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https://www.readbyqxmd.com/read/29197294/gestational-ultrasonography-and-dopplerfluxometry-in-capuchin-monkeys-sapajus-apella-zoometric
#1
S A Miranda, D L Leão, K G Oliveira, I S Sodré, S F S Domingues
The objectives of the current study were as follows: 1) to evaluate blood flow in the uterine (UA) and umbilical (Uma) arteries in pregnant capuchin monkeys by measuring the resistive index (RI) and pulsatility index (PI); 2) to determine the presence or absence of the early diastolic notch and diastolic flow in the UA and Uma flow waveforms, respectively; 3) to perform conceptus echobiometry for fetal growth assessment during pregnancy; 4) to describe the moment that the fetal organs were initially observed; and 5) to determine when the diagnosis of fetal gender is possible...
November 26, 2017: Theriogenology
https://www.readbyqxmd.com/read/29195085/clinical-and-hematological-profile-in-a-newborn-cohort-with-hemoglobin-sc
#2
Paulo V Rezende, Millane V Santos, Gustavo F Campos, Laura L M Vieira, Maristela B Souza, André R Belisário, Celia M Silva, Marcos B Viana
OBJECTIVES: Hemoglobin SC is the second most common variant of sickle-cell disease worldwide, after hemoglobin SS. The objectives of the study were to describe the clinical and laboratory characteristics of hemoglobin SC disease in children from a newborn screening program and treated at a blood donor center. METHODOLOGY: This study assessed a cohort of 461 infants born between 01/01/1999 and 12/31/2012 and followed-up until 12/31/2014. Clinical events were expressed as rates for 100 patient-years, with 95% confidence intervals...
November 28, 2017: Jornal de Pediatria
https://www.readbyqxmd.com/read/29193111/clinical-input-of-anti-d-quantitation-by-continuous-flow-analysis-on-autoanalyzer-in-the-management-of-high-titer-anti-d-maternal-alloimmunization
#3
Cécile Toly-Ndour, Haifa Mourtada, Stéphanie Huguet-Jacquot, Emeline Maisonneuve, Stéphanie Friszer, Françoise Pernot, Pauline Thomas, Jean-Marie Jouannic, Bruno Carbonne, Anne Cortey, Agnès Mailloux
BACKGROUND: In addition to titration by indirect antiglobulin test most widely used, anti-D quantitation by continuous-flow analysis (CFA) may be performed to assess severity of maternal immunization. Only five studies have reported its added value in the management of pregnancies complicated by anti-D immunization. STUDY DESIGN AND METHODS: A retrospective study of 74 severe anti-D-immunized pregnancies was conducted from January 1, 2013, to December 31, 2014, in the Trousseau Hospital in Paris (France)...
November 29, 2017: Transfusion
https://www.readbyqxmd.com/read/29130772/assessment-of-left-ventricular-function-using-the-myocardial-performance-index-in-term-fetuses-that-develop-intrapartum-compromise
#4
Amal A Alsolai, Larissa N Bligh, Ristan M Greer, Alexander Gooi, Sailesh Kumar
OBJECTIVE: To investigate the relationship between the prelabour left ventricular myocardial Performance Index (LVMPI) and intrapartum fetal compromise (IFC) in low risk term pregnancies. METHODS: A blinded, prospective observational cohort study at the Mater Mother's Hospital, Brisbane, Australia. A cohort of 284 women with uncomplicated singleton pregnancies underwent fortnightly ultrasound from 36 weeks until delivery. The LVMPI was assessed by conventional Doppler ultrasound and correlated with intrapartum outcomes...
November 12, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/29107602/maternal-ophthalmic-artery-doppler-ultrasonography-in-preeclampsia-and-pregnancy-outcomes
#5
Maria Teresa Pedrazzi Chaves, Sérgio Martins-Costa, Maria Lúcia da Rocha Oppermann, Ricardo Palma Dias, Valentino Magno, Julio Alejandro Peña, José Geraldo Lopes Ramos
OBJECTIVE: To examine the association of ophthalmic artery (OA) Doppler measure - the ratio of velocity peaks (PR) - to adverse pregnancy outcomes in preeclampsia. STUDY DESIGN AND MAIN OUTCOMES: Prospective cohort study of 56 women with preeclampsia that underwent Doppler measurements of OA flow, medial to optic nerve. PR results were classified as normal (PR < 0.78), abnormal (PR 0.78-0.98), or highly abnormal (PR ≥ 0.99). Attending clinicians were blinded to OA Doppler results...
October 2017: Pregnancy Hypertension
https://www.readbyqxmd.com/read/29097267/spontaneous-neonatal-renal-vein-thromboses-should-we-treat-them-all-a-report-of-five-cases-and-a-literature-review
#6
François Niada, René Tabin, Simon Kayemba-Kay's
Renal vein thrombosis (RVT) is a rare but well-known neonatal entity for which several therapeutic modalities are reported in the literature because of the lack of consensus management guidelines. POPULATION AND METHODS: A retrospective study of the medical records of children managed between January 1990 and December 2013, and whose final diagnosis was RVT. The diagnosis was initially clinical and subsequently confirmed by the abdominal ultrasonography (AUS) and Doppler imaging if necessary...
October 9, 2017: Pediatrics and Neonatology
https://www.readbyqxmd.com/read/29094487/effectiveness-of-fetal-cardiac-screening-for-congenital-heart-disease-using-a-combination-of-the-four-chamber-view-and-three-vessel-view-during-the-second-trimester-scan
#7
Mina Itsukaichi, Takehiro Serikawa, Kosuke Yoshihara, Hiroshi Suzuki, Kazufumi Haino, Masayuki Yamaguchi, Takayuki Enomoto, Koichi Takakuwa
AIM: We aimed to assess the accuracy and effectiveness of fetal cardiac screening for congenital heart disease (CHD) during the second trimester by general obstetricians in a non-selected population. METHODS: In this multicenter, prospective cohort study of fetal cardiac screening, four-chamber and three-vessel views were recorded by obstetricians at 18-21 gestational weeks (GW). A total of 3005 fetuses that were scheduled for delivery at our institution were included...
November 2, 2017: Journal of Obstetrics and Gynaecology Research
https://www.readbyqxmd.com/read/29081323/cardiovascular-adaptation-to-extrauterine-life-after-intrauterine-growth-restriction
#8
Luciana Rodriguez-Guerineau, Miriam Perez-Cruz, María D Gomez Roig, Francisco J Cambra, Juan Carretero, Fredy Prada, Olga Gómez, Fátima Crispi, Joaquim Bartrons
Introduction The adaptive changes of the foetal heart in intrauterine growth restriction can persist postnatally. Data regarding its consequences for early circulatory adaptation to extrauterine life are scarce. The aim of this study was to assess cardiac morphometry and function in newborns with late-onset intrauterine growth restriction to test the hypothesis that intrauterine growth restriction causes cardiac shape and functional changes at birth. METHODS: A comprehensive echocardiographic study was performed in 25 neonates with intrauterine growth restriction and 25 adequate-for-gestational-age neonates...
October 30, 2017: Cardiology in the Young
https://www.readbyqxmd.com/read/29021168/functional-ultrasound-imaging-of-brain-activity-in-human-newborns
#9
Charlie Demene, Jérome Baranger, Miguel Bernal, Catherine Delanoe, Stéphane Auvin, Valérie Biran, Marianne Alison, Jérome Mairesse, Elisabeth Harribaud, Mathieu Pernot, Mickael Tanter, Olivier Baud
Functional neuroimaging modalities are crucial for understanding brain function, but their clinical use is challenging. Recently, the use of ultrasonic plane waves transmitted at ultrafast frame rates was shown to allow for the spatiotemporal identification of brain activation through neurovascular coupling in rodents. Using a customized flexible and noninvasive headmount, we demonstrate in human neonates that real-time functional ultrasound imaging (fUSI) is feasible by combining simultaneous continuous video-electroencephalography (EEG) recording and ultrafast Doppler (UfD) imaging of the brain microvasculature...
October 11, 2017: Science Translational Medicine
https://www.readbyqxmd.com/read/28969484/combined-measurement-of-fetal-lung-volume-and-pulmonary-artery-resistance-index-is-more-accurate-for-prediction-of-neonatal-respiratory-distress-syndrome-in-preterm-fetuses-a-pilot-study
#10
Mohamed Laban, Ghada M Mansour, Ahmed El-Kotb, Alaa Hassanin, Zina Laban, Abdelrahman Saleh
OBJECTIVE: The objective of this study is to estimate optimal cut-off values for mean fetal lung volume (FLV) and pulmonary artery resistance index (PA-RI) as non-invasive measures to predict neonatal respiratory distress syndrome (RDS) in preterm fetuses. METHODS: A prospective study conducted at Ain Shams University Maternity Hospital, Egypt from May 2015 to July 2017: 80 eligible women diagnosed with preterm labor were recruited at 32-36 weeks' gestation. Before delivery, three-dimensional ultrasound was used to estimate FLV using virtual organ computer-aided analysis (VOCAL), while PA-RI was measured by Doppler ultrasonography...
October 12, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/28946157/duplex-sonographic-diagnosis-of-perinatal-hemorrhagic-stroke
#11
Karl-Heinz Deeg
Children are particularly at risk for stroke in the neonatal period. Neonatal hemorrhagic stroke is rarer than ischemic stroke. The incidence is 40.7/100 000 live births. Hemorrhagic stroke is caused by a disruption in venous drainage usually due to local thrombosis. As a result of the nonspecific clinical symptoms in this age group, diagnosis is usually made too late. The only relatively specific symptom is a cerebral seizure during the first week of life. Therefore, stroke should be ruled out by diagnostic imaging in the case of any seizure in the first days of life...
October 2017: Ultraschall in der Medizin
https://www.readbyqxmd.com/read/28904685/-poorly-tolerated-broad-qrs-complex-tachycardia-in-a-newborn
#12
Désiré Alain Affangla, Mohamed Leye, Angèle Wabo Simo, Franck D'Almeida, Thérèse Yandé Sarr, Adamson Phiri, Adama Kane
Poorly tolerated broad QRS complex tachycardia in a newborn poses problems with its diagnosis and emergency management. We report the case of a 35-day-old newborn with broad QRS complex tachycardia admitted because of cardiocirculatory distress. Doppler echocardiography showed morphologically normal heart. The patient received a loading dose of amiodarone but it didn't attenuate tachycardia. Normal sinus rhythm was restored after cardioversion through Lifeline semi-automatic external defibrillator. Maintenance therapy was based on oral amiodarone...
2017: Pan African Medical Journal
https://www.readbyqxmd.com/read/28875230/b-flow-sonography-for-evaluation-of-basal-cerebral-arteries-in-newborns
#13
M Groth, M Ernst, P Deindl, J Herrmann
The aim of the study was to evaluate the B‑flow sonography (BFS) to image the basal cerebral arteries in newborn infants. For this purpose 34 newborns, who underwent standardized ultrasound of the brain including BFS, color Doppler (CDS) and power Doppler (PDS) techniques were retrospectively assessed. Delineation of the anterior communicating (Acom), the posterior communicating (Pcom), the middle cerebral (M1 and M2 segments), the anterior cerebral (A1 and A2 segments), and the posterior cerebral artery (P1 and P2 segments) were visually scored...
September 5, 2017: Clinical Neuroradiology
https://www.readbyqxmd.com/read/28868047/in-premature-newborns-intraventricular-hemorrhage-causes-cerebral-vasospasm-and-associated-neurodisability-via-heme-induced-inflammasome-mediated-interleukin-1-production-and-nitric-oxide-depletion
#14
Michael Eisenhut, Samyami Choudhury
BACKGROUND: Intraventricular hemorrhage (IVH) occurs in 60-70% of neonates weighing 500-750 g and 10-20% of those weighing 1,000-1,500 g. All forms of IVH have been associated with neurocognitive deficits. Both subarachnoid and IVHs have been associated with delayed vasospasm leading to neurological deficits. Pathways linking hemoglobin release from blood clots to vasospasm include heme-induced activation of inflammasomes releasing interleukin-1 (IL-1) that can cause calcium dependent and independent vasospasm...
2017: Frontiers in Neurology
https://www.readbyqxmd.com/read/28840383/comprehensive-echocardiographic-assessment-of-biventricular-function-in-the-rabbit-animal-model-in-cardiovascular-research-feasibility-and-normal-values
#15
Sara Roldan Ramos, Guido Pieles, Wei Hui, Ryo Ishii, Cameron Slorach, Mark K Friedberg
Quantification of cardiac structure and function is central in cardiovascular research. Rabbits are valuable research models of cardiovascular human disease; however, there is little normal data available. The aim of this study was to investigate feasibility and provide normal values for comprehensive echocardiographic assessment of biventricular function in rabbits. New Zealand white rabbits underwent trans-thoracic echocardiography using a general electric (GE) Vivid 7/E9 system with a 10 MHz transducer, under light sedation, to evaluate biventricular function and dimensions...
August 24, 2017: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/28828053/ultrasound-prenatal-diagnosis-and-emergency-interventional-radiologic-therapy-of-galen-aneurysmal-malformation-in-a-newborn
#16
Roxana Elena Bohiltea, Natalia Turcan, Cristian Mihalea, Bogdan Dorobat, Eliza Elena Cinteza, Adriana Dan, Magdalena Mihai, Adela Dimitriade, Cristian Boros, Mircea Dumitru, Ionut Gobej, Octavian Munteanu, Monica Mihaela Cirstoiu
Located under the cerebral hemispheres and draining the anterior and central regions of the brain into the sinus of the posterior cerebral fossa, the vein of Galen aneurysmal malformation is considered to be a rare cause of hydrocephaly. The presence of this condition in the neonatal period typically includes intractable heart failure and a poor prognosis. We report a case of aneurysm of the vein of Galen diagnosed prenatally at 28 weeks of gestation, with the delivery at term by caesarean section of a female infant...
December 2016: Mædica
https://www.readbyqxmd.com/read/28729313/fetal-doppler-velocimetry-and-bronchopulmonary-dysplasia-risk-among-growth-restricted-preterm-infants-an-observational-study
#17
Alessandra Lio, Paolo Rosati, Roberta Pastorino, Francesco Cota, Milena Tana, Chiara Tirone, Claudia Aurilia, Cinzia Ricci, Alessandro Gambacorta, Angela Paladini, Ilenia Mappa, Silvia Buongiorno, Gian Franco Zannoni, Costantino Romagnoli, Giovanni Vento
OBJECTIVE: To investigate whether fetal growth restriction (FGR) diagnosis, based on pathological prenatal fetal Doppler velocimetry, is associated with bronchopulmonary dysplasia (BPD) independently of being small for gestational age (SGA) per se at birth among very preterm infants. DESIGN: Prospective, observational study. FGR was defined as failing fetal growth in utero and fetal Doppler velocimetry abnormalities. SETTING: Policlinico Universitario Agostino Gemelli, Roma, Italy...
July 20, 2017: BMJ Open
https://www.readbyqxmd.com/read/28714905/effects-of-eicosapentaenoic-acid-epa-and-docosahexaenoic-acid-dha-on-fetal-pulmonary-circulation-an-experimental-study-in-fetal-lambs
#18
Dyuti Sharma, Estelle Aubry, Thavarak Ouk, Ali Houeijeh, Véronique Houfflin-Debarge, Rémi Besson, Philippe Deruelle, Laurent Storme
Background: Persistent pulmonary hypertension of the newborn (PPHN) causes significant morbidity and mortality in neonates. n-3 Poly-unsaturated fatty acids have vasodilatory properties in the perinatal lung. We studied the circulatory effects of eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) in fetal sheep and in fetal pulmonary arterial rings. Methods: At 128 days of gestation, catheters were placed surgically in fetal systemic and pulmonary circulation, and a Doppler probe around the left pulmonary artery (LPA)...
July 16, 2017: Nutrients
https://www.readbyqxmd.com/read/28643877/cerebral-haemodynamic-response-to-somatosensory-stimulation-in-neonatal-lambs
#19
Shinji Nakamura, David W Walker, Flora Y Wong
KEY POINTS: Cerebral haemodynamic response to neural stimulation has been extensively studied in adults, but little is known about cerebral haemodynamic response in the fetal and neonatal brain. The present study describes the cerebral haemodynamic response measured by near infrared spectroscopy to somatosensory stimulation in newborn lambs, in comparison to recent findings in fetal sheep. The cerebral haemodynamic responses in the newborn lamb brain can involve an increase in oxyhaemoglobin (oxyHb), or a decrease of oxyHb suggestive of reduced perfusion and oxygenation...
September 1, 2017: Journal of Physiology
https://www.readbyqxmd.com/read/28631496/echocardiographic-evaluation-of-cardiac-functions-in-newborns-of-mildly-preeclamptic-pregnant-women-within-postnatal-24-48%C3%A2-hours
#20
Kadir Mutlu, Ulas Karadas, Yilmaz Yozgat, Timur Meşe, Mustafa Demirol, Senay Coban, Cem Karadeniz, Rahmi Özdemir, Dilek Orbatu, Utku Karaarslan, Vedide Tavli
The aim of this study is to detect preeclampsia-related cardiac dysfunction within 24-48 hours of delivery in newborns born from preeclamptic mothers. Forty newborns from mildly preeclamptic mothers formed the study group and the control group was formed by 40 healthy newborns. Cardiac function for the groups were evaluated using conventional echocardiography and myocardial performance index (MPI) within the first 24-48 hours of their lifetime and the results of both groups were compared. A significant difference between the groups was observed especially in the PW Doppler MPI measurements (the left ventricle MPI 0...
June 20, 2017: Journal of Obstetrics and Gynaecology: the Journal of the Institute of Obstetrics and Gynaecology
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