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Fetal doppler

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https://www.readbyqxmd.com/read/29045943/reference-ranges-for-fetal-atrioventricular-and-ventriculoatrial-time-intervals-and-their-ratios-during-normal-pregnancy
#1
Beatrice Mosimann, Georgios Arampatzis, Sofia Amylidi-Mohr, Anice Bessire, Marialuigia Spinelli, Petros Koumoutsakos, Daniel Surbek, Luigi Raio
BACKGROUND: The diagnostic assessment of fetal arrhythmias relies on the measurements of atrioventricular (AV) and ventriculoatrial (VA) time intervals. Pulsed Doppler over in- and outflow of the left ventricle and tissue Doppler imaging are well-described methods, while Doppler measurements between the left brachiocephalic vein and the aortic arch are less investigated. The aim of this study was to compare these methods of measurement, to find influencing factors on AV and VA times and their ratio, and to create reference ranges...
October 19, 2017: Fetal Diagnosis and Therapy
https://www.readbyqxmd.com/read/29037551/ductus-venosus-doppler-and-the-postnatal-outcomes-of-growth-restricted-fetuses-with-absent-end-diastolic-blood-flow-in-the-umbilical-arteries
#2
Nobuhiro Hidaka, Yuka Sato, Saki Kido, Yasuyuki Fujita, Kiyoko Kato
OBJECTIVE: We aimed to evaluate the outcomes of growth-restricted fetuses with absent end-diastolic velocity in the umbilical arteries (UA-AEDV), and investigate the relationship between Doppler flow velocity waveforms in the ductus venosus (DV) and the clinical features. MATERIALS AND METHODS: This was a retrospective study of growth-restricted fetuses diagnosed with UA-AEDV delivered at our institution between 2013 and 2015. The time from diagnosis of UA-AEDV to delivery, postnatal survival, and developmental prognoses were the primary outcomes...
October 2017: Taiwanese Journal of Obstetrics & Gynecology
https://www.readbyqxmd.com/read/29024133/plasma-natriuretic-peptide-levels-in-fetuses-with-congenital-heart-defect-and-arrhythmia-a-single-center-prospective-study
#3
Takekazu Miyoshi, Takashi Umekawa, Hiroshi Hosoda, Takashi Asada, Akihiro Fujiwara, Ken-Ichi Kurosaki, Isao Shiraishi, Michikazu Nakai, Kunihiro Nishimura, Mikiya Miyazato, Kenji Kangawa, Tomoaki Ikeda, Jun Yoshimatsu, Naoto Minamino
OBJECTIVES: Diagnosing fetal heart failure remains challenging because it is difficult to know how well the fetal myocardium will perform as loading conditions change. In adult cardiology, natriuretic peptides (NPs) are established marker of heart failure. However, the number of studies investigating NP levels in fetuses is quite limited. The aim of this study was to evaluate the significance of plasma NP levels in the assessment of heart failure in fetuses with congenital heart defect (CHD) and arrhythmia...
October 11, 2017: Ultrasound in Obstetrics & Gynecology
https://www.readbyqxmd.com/read/29019748/doppler-us-in-the-evaluation-of-fetal-growth-and-perinatal-health
#4
Kristen R Uquillas, Brendan H Grubbs, Ashley E Prosper, Ramen H Chmait, Edward G Grant, Daphne K Walker
Fetal growth restriction is commonly defined as an estimated fetal weight (EFW) that is below the 10th percentile for gestational age. It is associated with an increased risk of intrauterine demise, neonatal morbidity, and neonatal death; therefore, antenatal detection and surveillance with the optimization of delivery timing are necessary to improve pregnancy outcomes. If the estimated due date has been verified and the EFW is below the 10th percentile for gestational age, the underlying cause should be investigated, since the clinical management, outcome, and counseling options are largely dependent on the cause of the growth restriction...
October 2017: Radiographics: a Review Publication of the Radiological Society of North America, Inc
https://www.readbyqxmd.com/read/28984005/influence-of-perinatal-low-dose-acetylsalicylic-acid-therapy-on-fetal-hemodynamics-evaluated-by-determining-the-acceleration-time-ejection-time-ratio-in-the-ductus-arteriosus
#5
Miwa Miyazaki, Yoshimitsu Kuwabara, Toshiyuki Takeshita
AIM: Acceleration-time/ejection-time ratio (At/Et ratio) of Doppler waveform is an established hemodynamic parameters that reflect proximal stenosis. Using this parameter, we evaluated whether perinatal low-dose acetylsalicylic acid (ASA) therapy could alter hemodynamics in the ductus arteriosus. METHODS: Pulse Doppler measurements of the fetal ductus arteriosus were performed longitudinally from 20 to 37 gestational weeks in 106 healthy pregnant women (controls) and 65 pregnant women taking daily low-dose ASA (80 or 100 mg/day) because of a history of recurrent pregnancy loss...
October 6, 2017: Journal of Obstetrics and Gynaecology Research
https://www.readbyqxmd.com/read/28982294/the-effect-of-prenatal-alcohol-exposure-on-fetal-growth-and-cardiovascular-parameters-in-a-baboon-model-of-pregnancy
#6
Ana M Tobiasz, Jose R Duncan, Zoran Bursac, Ryan D Sullivan, Danielle L Tate, Alex M Dopico, Anna N Bukiya, Giancarlo Mari
Prenatal alcohol exposure often results in an array of fetal developmental abnormalities termed fetal alcohol spectrum disorders (FASDs). Despite the high prevalence of FASDs, the pathophysiology of fetal damage by alcohol remains poorly understood. One of the major obstacles in studying fetal development in response to alcohol exposure is the inability to standardize the amount, pattern of alcohol consumption, and peak blood alcohol levels in pregnant mothers. In the present study, we used Doppler ultrasonography to assess fetal growth and cardiovascular parameters in response to alcohol exposure in pregnant baboons...
January 1, 2017: Reproductive Sciences
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
#7
Mohamed Laban, Ghada 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/28969470/the-reverse-boomerang-sign-a-marker-for-first-trimester-transposition-of-great-arteries
#8
Nathalie Jeanne Bravo-Valenzuela, Alberto Borges Peixoto, Edward Araujo Júnior, Costa Fabricio da Silva, Simon Meagher
OBJECTIVE: To describe a new sonographic marker of transposition of great arteries (TGA) during the first trimester screening. METHODS: We reviewed six cases of TGA from 2013 to 2016 which an antenatal diagnosis of TGA at first trimester screening (11-13 + 6 weeks of gestation) was confirmed postnatally. We specifically assessed images obtained by scanning the fetal heart in three vessels (3V) and three-vessel with trachea (3VT) views using color Doppler. The "reverse boomerang" sign was defined as a reverse curvature of right ventricle outflow tract (RVOT) at level of the three-vessel with trachea (3VT) view...
October 2, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/28965152/high-incidence-of-progressive-stenosis-in-aberrant-left-subclavian-artery-with-right-aortic-arch
#9
Mamoru Muraoka, Hazumu Nagata, Yuichiro Hirata, Kiyoshi Uike, Eiko Terashi, Eiji Morihana, Masayuki Ochiai, Yasuyuki Fujita, Kiyoko Kato, Kenichiro Yamamura, Shouichi Ohga
Right aortic arch with aberrant left subclavian artery (RAA/aLSCA) is a rare aortic arch anomaly. The clinical association of aLSCA stenosis with RAA/aLSCA has not yet been fully elucidated. The aim of this study was to investigate the diagnosis, incidence, management and outcome of aLSCA stenosis in infants with prenatally diagnosed RAA/aLSCA. Ten fetuses who were diagnosed as having RAA/aLSCA in Kyushu University Hospital between January 2011 and December 2014 were enrolled. The maternal and child medical records were reviewed to investigate sex, gestational age at the fetal diagnosis, gestational age and body weight at birth, the findings of computed tomography (CT), Doppler ultrasonography of the vertebral artery and angiography, and the complications and outcomes of aLSCA stenosis...
September 30, 2017: Heart and Vessels
https://www.readbyqxmd.com/read/28960414/intra-and-inter-observer-reproducibility-of-third-trimester-uterine-artery-pulsatility-index
#10
Laura Marchi, Claudia Gaini, Chiara Franchi, Federico Mecacci, Caterina Bilardo, Lucia Pasquini
OBJECTIVES: The primary aim of the study was to investigate intra- and inter-observer reproducibility of Uterine Artery (UtA) Pulsatility Index (PI) in the third trimester of pregnancy. The secondary aim of the study was to examine whether high maternal Body Mass Index (BMI) or gestational age (GA) influence the reliability of this measurement. METHODS: Singleton pregnancies in women with known BMI were recruited between 30(+0) and 40(+0) weeks. UtA PI Doppler measurements were performed prospectively, independently and blindly by two Fetal Medicine Foundation accredited operators...
September 27, 2017: Prenatal Diagnosis
https://www.readbyqxmd.com/read/28957562/factors-influencing-fetal-cardiac-conduction-in-anti-ro-ssa-positive-pregnancies
#11
Sven-Erik Sonesson, Malin Hedlund, Aurélie Ambrosi, Marie Wahren-Herlenius
Objectives: Congenital heart block (CHB) develops in 1-2% of anti-Ro/SSA-positive pregnancies and has a recurrence rate of 12-20%, which indicates that factors other than maternal autoantibodies are crucial for CHB to occur. Here, we aimed to evaluate the influence of factors previously associated with CHB on the occurrence of milder forms of fetal cardiac conduction disturbances, shown to occur in up to 30% of anti-Ro/SSA-positive pregnancies, and on neonatal outcome in a large cohort of prospectively followed pregnancies...
October 1, 2017: Rheumatology
https://www.readbyqxmd.com/read/28954334/-pregnancy-outcome-of-planning-pregnancies-in-patients-with-sle
#12
Z P Zhan, Y F Zhan, Y Yang, D Y Chen, L Q Liang, X Y Yang
Objectives: To investigate the pregnancy outcomes in systemic lupus erythematosus (SLE) patients with planning pregnancy.And to evaluate the value of fetal umbilical artery Doppler. Methods: A total of 130 SLE patients with planning pregnancy were prospectively recruited from January 2013 to January 2017 at the First Affiliated Hospital of Sun Yat-sen University. Results: Thirty eight (29.2%) patients had active lupus, 30 with mild activity, 5 with moderate activity and 3 with severe activity.Active disease in the first, second and third trimesters occurred in 6, 11 and 21 cases respectively...
September 19, 2017: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/28948639/time-interval-measurements-of-the-ductus-venosus-during-the-early-second-trimester-of-pregnancy-reference-ranges-and-clinical-application
#13
Manaphat Suksai, Chitkasaem Suwanrath, Ounjai Kor-Anantakul, Alan Geater
OBJECTIVES: The aims of this study were to construct reference ranges for the time interval parameters of the ductus venosus during the early second trimester of pregnancy and to demonstrate the clinical utility in various fetal disorders. METHODS: The ductus venosus Doppler measurements of 331 healthy fetuses between 15 and 22 weeks' gestation were analyzed. The systolic time and diastolic time were subdivided into the systolic acceleration time, systolic deceleration time, diastolic acceleration time, and diastolic deceleration time...
September 26, 2017: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/28948358/pregnancy-outcome-in-162-women-with-rheumatic-diseases-experience-of-a-university-hospital-in-turkey
#14
Ebru Alici Davutoğlu, Aysegul Ozel, Nevin Yılmaz, Riza Madazli
PURPOSE: To evaluate the distribution and the obstetric outcomes of pregnancies with different types of rheumatic diseases managed in our unit. METHODS: Pregnancies of 162 women with rheumatic diseases, seen for their antenatal care at our department for the period between 2013 and 2017 were included in this retrospective clinical study. Obstetric and perinatal outcomes were main outcome measures. RESULTS: The most encountered rheumatic diseases were SLE (37...
September 25, 2017: Archives of Gynecology and Obstetrics
https://www.readbyqxmd.com/read/28946860/severe-hydronephrosis-secondary-to-uterine-artery-pseudoaneurysm-in-the-early-second-trimester-of-pregnancy-a-case-report
#15
Tsukuru Amano, Shinsuke Tokoro, Shunichiro Tsuji, Takashi Inoue, Fuminori Kimura, Takashi Murakami
BACKGROUND: Uterine artery pseudoaneurysm (UAP) normally presents genital bleeding in the puerperal period, and severe hydronephrosis rarely presents during pregnancy. We report a rare case of severe ureteral obstruction accompanied by uterine artery pseudoaneurysm in the early second trimester of pregnancy, which was successfully treated by surgical intervention. CASE PRESENTATION: A 42-year-old nulligravid woman who had undergone myomectomy 3 years earlier was referred to our hospital for acute left abdominal pain at the 17th week of gestation...
September 25, 2017: BMC Pregnancy and Childbirth
https://www.readbyqxmd.com/read/28935434/diagnosis-of-venous-thromboembolism-in-pregnancy
#16
Wee-Shian Chan
The diagnosis of deep vein thrombosis (DVT) and pulmonary embolism (PE) during pregnancy still relies on objective imaging. Ancillary testing such as clinical prediction rules and D-dimer testing may have a role in excluding both DVT and PE in these pregnant patients even as we await results from prospective management studies. The anatomical distribution of DVT in pregnancy differs from those in non-pregnant patient with a greater propensity for proximal iliac vein thrombosis. Using leg ultrasonography with compression maneuvers from the femoral vein to popliteal vein and doppler assessment of the iliac vein in a single examination, appears adequate in most pregnant women with suspected DVT, in excluding DVT...
September 5, 2017: Thrombosis Research
https://www.readbyqxmd.com/read/28926826/a-low-cerebroplacental-ratio-at-20-24-weeks-of-gestation-can-predict-reduced-fetal-size-later-in-pregnancy-or-at-birth
#17
Edgar Hernandez-Andrade, Eli Maymon, Offer Erez, Homam Saker, Suchaya Luewan, Maynor Garcia, Hyunyoung Ahn, Adi L Tarca, Bogdan Done, Steven J Korzeniewski, Sonia S Hassan, Roberto Romero
AIM: To determine whether Doppler evaluation at 20-24 weeks of gestation can predict reduced fetal size later in pregnancy or at birth. METHODS: Fetal biometry and Doppler velocimetry were performed in 2,986 women with a singleton pregnancy at 20-24 weeks of gestation. Predictive performances of the umbilical artery pulsatility index (UA-PI) or the mean uterine artery pulsatility index (UtA-PI) >95th percentile, middle cerebral artery pulsatility index, or cerebroplacental ratio (CPR) <5th percentile for early small for gestational age (SGA; <34 weeks of gestation), late SGA (≥34 weeks of gestation), or SGA at birth (birthweight <10th percentile) were analyzed...
September 20, 2017: Fetal Diagnosis and Therapy
https://www.readbyqxmd.com/read/28918426/aortic-isthmus-flow-recording-predicts-the-outcome-of-the-recipient-twin-after-laser-coagulation-in-twin-twin-transfusion-syndrome
#18
France Leduc, Amélie Delabaere, Roxanne Gendron, Florent Fuchs, Sandrine Wavrant, Marie-Josée Raboisson, Jean-Claude Fouron, François Audibert
INTRODUCTION: The objective was to assess the prognostic value of the systolic flow through the aortic isthmus in monochorionic pregnancies complicated by twin-twin transfusion syndrome (TTTS) treated by placental laser ablation. MATERIAL AND METHODS: Fetal echocardiography and outcome data of 105 cases of TTTS treated by laser photocoagulation of placental anastomoses were reviewed. Hemodynamic parameters were collected before and after treatment. The isthmic systolic index (ISI) was calculated as the peak systolic velocity/systolic nadir ratio...
September 16, 2017: Fetal Diagnosis and Therapy
https://www.readbyqxmd.com/read/28912727/a-hybrid-emd-kurtosis-method-for-estimating-fetal-heart-rate-from-continuous-doppler-signals
#19
Haitham M Al-Angari, Yoshitaka Kimura, Leontios J Hadjileontiadis, Ahsan H Khandoker
Monitoring of fetal heart rate (FHR) is an important measure of fetal wellbeing during the months of pregnancy. Previous works on estimating FHR variability from Doppler ultrasound (DUS) signal mainly through autocorrelation analysis showed low accuracy when compared with heart rate variability (HRV) computed from fetal electrocardiography (fECG). In this work, we proposed a method based on empirical mode decomposition (EMD) and the kurtosis statistics to estimate FHR and its variability from DUS. Comparison between estimated beat-to-beat intervals using the proposed method and the autocorrelation function (AF) with respect to RR intervals computed from fECG as the ground truth was done on DUS signals from 44 pregnant mothers in the early (20 cases) and late (24 cases) gestational weeks...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28905984/fetal-intra-abdominal-umbilical-vein-aneurysm
#20
Stefano Raffaele Giannubilo, Angela Pasculli, Alessandro Cecchi, Alessandra Biagini, Andrea Ciavattini
Importance: Fetal umbilical vein aneurysm is an uncommon anomaly that accounts for approximately 4% of umbilical cord abnormalities. The rate of intrauterine fetal death is reported to be approximately 4% to 5%, higher than the background rate of 0.7% that is generally reported during pregnancy. Objective: The aim of this study was to review the pathophysiology, diagnosis, and clinical management of fetal umbilical vein aneurysm. Evidence Acquisition: Advances in high-resolution ultrasound combined with color Doppler and 3-dimensional rendering have contributed to an increased understanding of the fetal venous circulation in recent years...
September 2017: Obstetrical & Gynecological Survey
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