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Umbilical doppler

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https://www.readbyqxmd.com/read/27874184/antenatal-ultrasound-features-in-fetuses-with-gastroschisis-and-its-prediction-in-neonatal-outcome
#1
Jessica A Robertson, Roy M Kimble, Kellie Stockton, Renuka Sekar
BACKGROUND: Gastroschisis is the most common major congenital anomaly managed by paediatric surgeons. The significance of certain associated antenatal ultrasound features in determining fetal outcome is under discussion. AIM: The study aims to define if associated antenatal ultrasound features of gastroschisis are useful prognostic markers for fetal outcome. By establishing the significance of features, including extra- and intra-abdominal bowel dilatation, stomach herniation, stomach dilatation, bowel matting, growth restriction, abnormal umbilical artery (UA) Doppler ultrasounds, and abnormal amniotic fluid volume, it is hoped clinicians will have enhanced ability to counsel parents about the likely outcomes for their infant...
November 22, 2016: Australian & New Zealand Journal of Obstetrics & Gynaecology
https://www.readbyqxmd.com/read/27872421/risk-of-adverse-outcomes-in-euploid-pregnancies-with-isolated-short-fetal-femur-and-humerus-on-second-trimester-sonography
#2
Marja Kaijomaa, Veli-Matti Ulander, Markku Ryynanen, Vedran Stefanovic
OBJECTIVES: The purpose of this study was to evaluate pregnancies with isolated short fetal femur and humerus on second-trimester sonography. Short fetal long bones are known to be associated with aneuploidy and structural anomalies. In this study, we wanted to show the risk of adverse pregnancy outcomes in euploid and nonanomalous pregnancies. METHODS: Singleton pregnancies with short femur and humerus were included. Pregnancies with normal fetal bone lengths and age-matched mothers were selected as controls...
December 2016: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/27859836/outcome-in-monochorionic-twin-pregnancies-with-selective-intrauterine-growth-restriction-according-to-the-umbilical-artery-doppler-pattern-of-the-smaller-twin-a-systematic-review-and-meta-analysis
#3
REVIEW
Danilo Buca, Giorgio Pagani, Giuseppe Rizzo, Alessandra Familiari, Maria Elena Flacco, Lamberto Manzoli, Marco Liberati, Francesco Fanfani, Giovanni Scambia, Francesco D'Antonio
OBJECTIVE: To explore the outcome of monochorionic (MC) twin pregnancies affected by selective intra-uterine growth restriction (sIUGR) according to the umbilical artery Doppler pattern of the smaller twin. METHODS: Medline, Embase, Cinhal and ClinicalTrials.gov databases (2000-2016) were searched. sIUGR was defined as the presence of one twin with estimated fetal weight and/or abdominal circumference less than 10(th) or 5(th) percentile and classified according to the umbilical artery Doppler flow pattern of the smaller twin (type I: persistently positive, type II: persistently absent/reversed, type III: intermittently absent/reversed)...
November 18, 2016: Ultrasound in Obstetrics & Gynecology
https://www.readbyqxmd.com/read/27858967/placental-pulsatility-index-a-new-more-sensitive-parameter-for-predicting-adverse-outcome-in-pregnancies-suspected-of-fetal-growth-restriction
#4
Saemundur Gudmundsson, Kari Flo, Gisela Ghosh, Tom Wilsgaard, Ganesh Acharya
INTRODUCTION: The pulsatility indices (PI) of the umbilical (UA) and uterine (UtA) arteries are used as the surrogate measures of utero-placental perfusion. Combining the two might simplify the evaluation of total placental vascular impedance, possibly improve prediction of adverse outcomes and help to identify pregnancies with suspected fetal growth restriction that need more intense surveillance. MATERIAL AND METHODS: UA and UtA blood flow velocities were recorded using pulsed-wave Doppler in a longitudinal study of 53 low-risk pregnancies (248 observations) during 20-40 weeks of gestation...
November 17, 2016: Acta Obstetricia et Gynecologica Scandinavica
https://www.readbyqxmd.com/read/27858228/prenatal-diagnosis-of-abnormal-umbilical-cord-insertion-a-rare-case-of-furcate-insertion
#5
Yasuyuki Fujita, Yasuo Yumoto, Kiyoko Kato
Furcate insertion (FI) is an extremely rare abnormality of umbilical cord insertion. One of the complications associated with FI is hemorrhage from the umbilical vein at the site of FI of the umbilical cord, which can cause sudden intrauterine fetal death. Because of its rarity, no prenatal diagnosis of FI has been reported. A 31-year-old woman at 34 weeks' gestation was referred to us for suspected abnormal cord insertion. Ultrasonography showed normal fetal growth and amniotic fluid volume, with no fetal anomalies...
November 17, 2016: Journal of Medical Ultrasonics
https://www.readbyqxmd.com/read/27836536/doppler-screening-and-predictors-of-adverse-outcomes-in-high-risk-pregnancies-affected-by-tobacco
#6
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/27831924/transient-fetal-blood-redistribution-associated-with-maternal-supine-position
#7
Karina P Silva, Tatiana Emy N K Hamamoto, Roseli M Y Nomura
OBJECTIVE: To investigate whether fetal blood circulation is influenced by the maternal supine position. METHODS: The inclusion criteria were good health, a singleton pregnancy, maternal age between 18 and 40 years, gestational age between 36 and 40 weeks, and an agreement to participate in the study. Each participant (n=20) was initially asked to adopt the left lateral position for 5 min, while fetal Doppler measurements were taken of the fetal middle cerebral artery (MCA), umbilical artery (UA), and umbilical vein (UV)...
November 10, 2016: Journal of Perinatal Medicine
https://www.readbyqxmd.com/read/27824563/adaptive-spectral-envelope-estimation-for-doppler-ultrasound
#8
Aditi Kathpalia, Yucel Karabiyik, Sturla H Eik-Nes, Eva Tegnander, Ingvild Kinn Ekroll, Gabriel Kiss, Hans Torp
Estimation of accurate maximum velocities and spectral envelope in ultrasound Doppler blood flow spectrograms are both essential for clinical diagnostic purposes. However, obtaining accurate maximum velocity is not straightforward due to intrinsic spectral broadening and variance in the power spectrum estimate. The method proposed in this paper for maximum velocity point detection has been developed by modifying an existing method-signal noise slope intersection, incorporating in it steps from an altered version of another method called geometric method...
November 2016: IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control
https://www.readbyqxmd.com/read/27813120/prediction-of-neonatal-outcome-of-ttts-by-fetal-heart-and-doppler-ultrasound-parameters-before-and-after-laser-treatment
#9
A Delabaere, F Leduc, Q Reboul, F Fuchs, S Wavrant, J C Fouron, F Audibert
OBJECTIVES: To determine the prognostic value of fetal Doppler and echocardiographic parameters for neonatal survival up to 30 days after laser coagulation in monochorionic pregnancies complicated by twin-twin transfusion syndrome (TTTS). METHODS: Fetal echocardiography and outcome data of consecutive cases of TTTS treated by laser were retrospectively reviewed. Hemodynamic and cardiac function parameters were collected before and after laser. RESULTS: Between February 2006 and January 2015, 106 fetoscopic laser were performed...
November 3, 2016: Prenatal Diagnosis
https://www.readbyqxmd.com/read/27789620/scalp-congenital-hemangioma-with-associated-high-output-cardiac-failure-in-a-premature-infant-case-report-and-review-of-literature
#10
Sumedh S Shah, Brian M Snelling, Samir Sur, Alexandra R Ramnath, Emmalee S Bandstra, Dileep R Yavagal
INTRODUCTION: Scalp congenital hemangiomas (CHs) are rare vascular malformations among infants; they can be associated with an array of complications, including cardiac and cosmetic issues. Here, we report the endovascular treatment of a premature infant with a suspected large right parietal scalp hemangioma and associated high-output cardiac failure. CASE DESCRIPTION: A two-day-old female premature infant (29 weeks gestational age; 1330 g birth weight) was referred by the neonatologists to our department for consultation and potential treatment of a large right parietal CH causing abrupt hypotension and high-output cardiac failure...
October 27, 2016: Interventional Neuroradiology
https://www.readbyqxmd.com/read/27780536/placental-disease-and-abnormal-umbilical-artery-doppler-waveforms-in-trisomy-21-pregnancy-a-case-control-study
#11
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/27767969/actual-vs-optimal-fetal-hematocrit-measured%C3%A2-with-punctures-of-cord-blood-in%C3%A2-utero-relationship-with-umbilical-artery%C3%A2-resistance
#12
Brun Jean-Frédéric, Boulot Pierre, Varlet-Marie Emmanuelle
Physiological studies on fetal blood in narrow glass tubes have suggested that fetal optimal hematocrit (hct) might be as high as 60%. A theoretical 'ideal' hct can also be predicted with a theoretical curve of hematocrit/viscosity (h/η) ratio vs hct constructed with Quemada's model. We used the database of one of our previous papers on fetal hemorheology to reinterpret its results with this concept. A series of 28 intrauterine cord punctures (between 19 and 33 weeks gestation) with doppler measurements of resistance in umbilical arteries was studied...
October 18, 2016: Clinical Hemorheology and Microcirculation
https://www.readbyqxmd.com/read/27762476/normogram-of-umbilical-artery-doppler-indices-in-singleton-pregnancies-in-south-western-nigerian-women
#13
Oluwagbemiga Oluwole Ayoola, Peter Bulus, Olabisi Morebisi Loto, Bukunmi Michael Idowu
AIM: To determine the Doppler indices of the umbilical arteries in normal singleton pregnancy with a view to generating local reference ranges. METHODS: In this prospective, cross-sectional study, 400 pregnant women at 15-39 weeks' gestational age, with estimated fetal weight within the 10th and 90th percentile, no fetal malformation(s), and without any history of maternal medical disease, were recruited. Umbilical arteries were assessed on ultrasound, with the subjects in the supine position...
October 20, 2016: Journal of Obstetrics and Gynaecology Research
https://www.readbyqxmd.com/read/27755130/twin-pregnancy-complicated-by-selective-growth-restriction
#14
Rosemary Townsend, Asma Khalil
PURPOSE OF REVIEW: Selective intrauterine growth restriction (sIUGR) in twin pregnancies presents a complex management problem for the fetal medicine specialist. This review summarizes what is currently known about sIUGR pathophysiology, particularly in monochorionic pregnancies and looks at the results of early trials of fetal intervention in high-risk sIUGR pregnancies. RECENT FINDINGS: sIUGR in monochorionic pregnancies is due to unequal placental sharing, but the clinical outcome is determined by the characteristics of the placental vascular anastomoses...
October 15, 2016: Current Opinion in Obstetrics & Gynecology
https://www.readbyqxmd.com/read/27739590/n-acetylcysteine-a-glutathione-precursor-reverts-vascular-dysfunction-and-endothelial-epigenetic-programming-in-intrauterine-growth-restricted-guinea-pigs
#15
Emilio A Herrera, Francisca Cifuentes-Zúñiga, Esteban Figueroa, Cristian Villanueva, Cherie Hernández, René Alegría, Viviana Arroyo-Jousse, Estefania Peñaloza, Marcelo Farías, Ricardo Uauy, Paola Casanello, Bernardo J Krause
KEY POINTS: Intrauterine growth restriction (IUGR) is associated with vascular dysfunction, oxidative stress and signs of endothelial epigenetic programming of the umbilical vessels. There is no evidence that this epigenetic programming is occurring on systemic fetal arteries. In IUGR guinea pigs we studied the functional and epigenetic programming of endothelial nitric oxide synthase (eNOS) (Nos3 gene) in umbilical and systemic fetal arteries, addressing the role of oxidative stress in this process by maternal treatment with N-acetylcysteine (NAC) during the second half of gestation...
October 14, 2016: Journal of Physiology
https://www.readbyqxmd.com/read/27706859/diffusion-magnetic-resonance-imaging-of-the-fetal-brain-in-intrauterine-growth-restriction
#16
Owen J Arthurs, A Rega, F Guimiot, N Belarbi, J Rosenblatt, V Biran, M Elmaleh, G Sebag, M Alison
OBJECTIVES: Diffusion weighted magnetic resonance imaging (DWI) is a sensitive method to assess brain maturation or detect brain lesions, providing Apparent Diffusion Coefficient (ADC) values as a measure of water diffusion. Abnormal ADC values are seen in ischemic brain lesions, such as acute or chronic hypoxia. The aim of this study was to assess whether ADC values in the fetal brain were different in a group of fetuses exposed to severe vascular intrauterine growth restriction, compared to normal controls...
October 5, 2016: Ultrasound in Obstetrics & Gynecology
https://www.readbyqxmd.com/read/27684833/use-of-the-glidescope-video-laryngoscope-for-intubation-during-ex-utero-intrapartum-treatment-in-a-fetus-with-a-giant-cyst-of-the-4th-branchial-cleft-a-case-report
#17
Sung Hye Byun, So Young Lee, Seong Yeon Hong, Taeha Ryu, Baek Jin Kim, Jin Yong Jung
INTRODUCTION: In fetuses who are predicted to be at risk of catastrophic airway obstruction at delivery, the ex utero intrapartum treatment (EXIT) procedure is useful for securing the fetal airway while maintaining fetal oxygenation via placental circulation. Factors, including poor posture of the fetus and physician, narrow visual field, and issues of contamination in the aseptic surgical field, make fetal intubation during the EXIT procedure difficult. Herein, we report our experience of the usefulness of the GlideScope video laryngoscope (GVL) for intubation during the EXIT procedure...
September 2016: Medicine (Baltimore)
https://www.readbyqxmd.com/read/27680818/h2-maternal-hemodynamic-status-in-pregnancies-complicated-by-intrauterine-growth-restriction-iugr-and-post-partum-follow-up
#18
D Di Martino, S Zullino, D Casati, A S Grimaldi, V Sterpi, G Principato, M Garbin, E Ferrazzi
AIMS: To investigate maternal hemodynamic status in pregnancies complicated by IUGR and in the post-partum. METHODS: In this prospective study, we enrolled pregnant women between 24 and 38 weeks divided in severe and mild IUGR and a group of controls matched for gestational age. Severe IUGR was defined as abdominal circumference <5th centile and a Doppler velocimetry in umbilical artery42SD. Mild IUGR was defined as an abdominal circumference <10th centile and a Doppler velocimetry in umbilical artery <2SD...
August 2016: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/27680804/e3-maternal-haemodynamics-follow-up-after-pregnancies-complicated-by-hdp-and-or-iugr
#19
D Di Martino, S Zullino, D Casati, A S Grimaldi, C Mastroianni, V Sterpi, E Rosti, M Garbin, E Ferrazzid
AIMS: To compare maternal hemodynamic profile during pregnancy and at 6-12 months after delivery in pregnancies with different HDP phenotypes or severe IUGR. METHODS: We enrolled patients between 24 and 38 weeks of gestation: HDP with appropriate for gestational age foetuses (HDP-AGAf), HDP with IUGR (HDP-IUGR), severe IUGR and Controls matched for gestational age. Severe IUGR was defined as abdominal circumference <5th centile and a PI in umbilical artery42SD...
August 2016: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/27680800/d4-mca-uta-ratio-at-first-observation-is-associated-with-birthweight-in-late-onset-iugr
#20
Serena Simeone, Marianna Pina Rambaldi, Caterina Serena, Serena Ottanelli, Federico Mecacci
INTRODUCTION: MCA and uterine artery Doppler PI are commonly used in the evaluation of IUGR. Targets: This retrospective pilot study aims to investigate whether MCA/UtA ratio may identify adverse outcome in late onset IUGRs. A cohort of 69 pregnancies affected with late IUGR which underwent labor induction according to local protocols was retrospectively revised on the relationship between MCA/UtA ratio at first observation and the following adverse outcomes: cesarean section for nonreassuring fetal status, birthweight (expressed as percentile and continuous values, umbilical artery pH, NICU admission and Apgar score < 7 after 1 and 5 min...
August 2016: Journal of Maternal-fetal & Neonatal Medicine
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