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https://www.readbyqxmd.com/read/27920469/role-of-ultrasound-in-colorectal-diseases
#1
REVIEW
Renáta Bor, Anna Fábián, Zoltán Szepes
Ultrasound is an undervalued non-invasive examination in the diagnosis of colonic diseases. It has been replaced by the considerably more expensive magnetic resonance imaging and computed tomography, despite the fact that, as first examination, it can usefully supplement the diagnostic process. Transabdominal ultrasound can provide quick information about bowel status and help in the choice of adequate further examinations and treatment. Ultrasonography, as a screening imaging modality in asymptomatic patients can identify several colonic diseases such as diverticulosis, inflammatory bowel disease or cancer...
November 21, 2016: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/27898957/supplementation-of-corn-dried-distillers-grains-plus-solubles-to-gestating-beef-cows-fed-low-quality-forage-ii-impacts-on-uterine-blood-flow-circulating-estradiol-17%C3%AE-and-progesterone-and-hepatic-steroid-metabolizing-enzyme-activity
#2
V C Kennedy, B R Mordhorst, J J Gaspers, M L Bauer, K C Swanson, C O Lemley, K A Vonnahme
The objective of this study was to investigate the effects of supplementing dried distillers' grains plus solubles (DDGS) during late gestation on uterine blood flow (BF), circulating steroid hormones and hepatic steroid metabolizing enzymes, and calf and placental weights. Multiparous beef cows were randomly divided into a control group (CON; = 15) consuming a diet containing 90% corn stover and 10% corn silage (DM basis) for ad libitum intake and a treatment group (SUP; = 12) consuming the same diet and DDGS (0...
November 2016: Journal of Animal Science
https://www.readbyqxmd.com/read/27896244/adaptive-responses-of-cardiac-function-to-fetal-postural-change-as-gestational-age-increases
#3
Woo Jin Kim, Hye Jin Choi, Sun Young Yang, Boo Hae Koo, Ki Hoon Ahn, Geum Joon Cho, Soon Cheol Hong, Min-Jeong Oh, Hai-Joong Kim
OBJECTIVE: The cardiovascular system maintains homeostasis through a series of adaptive responses to physiological requirements. However, little is known about the adaptation of fetal cardiac function to gravity, according to gestational age. In the present study, we aimed to evaluate the adaptive responses of cardiac function to postural changes, using Tei index measurements. METHODS: Fetal echocardiography and Doppler examination were performed on 114 women with vertex singleton pregnancies at 19 to 40 weeks' gestation...
November 2016: Obstetrics & Gynecology Science
https://www.readbyqxmd.com/read/27894704/antenatal-fetal-surveillance-in-multiple-pregnancies
#4
REVIEW
Dick Oepkes, Marieke Sueters
Multiple pregnancies occur either spontaneously or because of assisted reproduction techniques in 1-3% of pregnancies. The presence of more than one fetus in the womb is associated with a range of possible complications, both for the mother and fetuses. Early detection of these complications followed by timely and appropriate management will reduce the risk of adverse outcomes. The techniques, skills, and experience for timely detection of complications and managing them appropriately require sufficient training and exposure...
September 29, 2016: Best Practice & Research. Clinical Obstetrics & Gynaecology
https://www.readbyqxmd.com/read/27874184/antenatal-ultrasound-features-in-fetuses-with-gastroschisis-and-its-prediction-in-neonatal-outcome
#5
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
#6
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/27872414/effect-of-low-dose-aspirin-on-midluteal-phase-uterine-artery-blood-flow-in-patients-with-recurrent-pregnancy-loss
#7
Xiaomin Kang, Tongfei Wang, Liyin He, Haijing Xu, Zhilan Liu, Aimin Zhao
OBJECTIVES: The purpose of this study was to evaluate differences in uterine artery blood flow parameters and pregnancy outcomes, if any. An investigation was conducted to determine the effects of low-dose aspirin on uterine artery blood flow indices in patients with recurrent pregnancy loss. METHODS: This observational study included 353 Chinese women with a history of recurrent pregnancy loss and 85 women without a history of recurrent pregnancy loss (control group) from Ren Ji Hospital...
December 2016: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/27862084/intra-and-inter-observer-reproducibility-and-generalizability-of-first-trimester-uterine-artery-pulsatility-index-by-transabdominal-and-transvaginal-ultrasound
#8
Laura Marchi, Eva Zwertbroek, Judith Snelder, Maaike Kloosterman, Caterina Maddalena Bilardo
OBJECTIVES: The primary aim of the study was to assess intra-observer and inter-observer reproducibility and generalizability (general reliability) of first trimester Doppler measurements of uterine arteries (UtA) performed both transabdominally (TA) and transvaginally (TV). Secondary aims were to investigate whether maternal BMI and acquisition modality (transabdominal or transvaginal) affect feasibility and reliability of UtA Doppler evaluation. METHODS: Singleton pregnancies between 11(+0) and 13(+6) weeks underwent TA and TV Doppler measurements of UtA prospectively, blindly and independently by Fetal Medicine Foundation-accredited operators...
November 16, 2016: Prenatal Diagnosis
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
#9
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
#10
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/27854396/maternal-cardiac-function-after-hellp-syndrome-an-echocardiographic-study
#11
Rossana Orabona, Enrico Vizzardi, Edoardo Sciatti, Federico Prefumo, Ivano Bonadei, Adriana Valcamonico, Marco Metra, Tiziana Frusca
OBJECTIVES: To evaluate maternal hemodynamics in asymptomatic women with a pregnancy complicated by hemolysis, elevated liver enzymes and low platelets (HELLP) syndrome, and compare it with patients with a previous preeclampsia (PE) and controls with uncomplicated pregnancies. METHODS: Women with a history of PE (n = 60) or HELLP syndrome (n = 49) and matched healthy controls (n = 60) underwent an echocardiographic examination 6 months-4 years after delivery, recording left ventricular (LV) dimensions, ejection fraction (LVEF) and mass, right ventricular (RV) tricuspid annular plane systolic movement (TAPSE) and fractional area changing (FAC)...
November 10, 2016: Ultrasound in Obstetrics & Gynecology
https://www.readbyqxmd.com/read/27854395/prediction-of-stillbirth-from-placental-growth-factor-at-19-24-weeks
#12
J E Aupont, R Akolekar, A Illian, S Neonakis, K H Nicolaides
OBJECTIVES: To investigate whether the addition of maternal serum placental growth factor (PlGF) measured at 19-24 weeks' gestation improves the performance of screening for stillbirth that is achieved by a combination of maternal factors, fetal biometry and uterine artery pulsatility index (UtA-PI) and to evaluate the performance of screening with this model for all stillbirths and those due to impaired placentation and unexplained or other causes. METHODS: This was a prospective screening study of 70 003 singleton pregnancies including 268 stillbirths, carried out in two phases...
November 2016: Ultrasound in Obstetrics & Gynecology
https://www.readbyqxmd.com/read/27854387/prediction-of-stillbirth-from-maternal-factors-fetal-biometry-and-uterine-artery-doppler-at-19-24-weeks
#13
R Akolekar, M Tokunaka, N Ortega, A Syngelaki, K H Nicolaides
OBJECTIVES: To evaluate the performance of screening for all stillbirths and those due to impaired placentation and unexplained or other causes using a combination of maternal factors, fetal biometry and uterine artery pulsatility index (UtA-PI) at 19-24 weeks' gestation and to compare this performance with that of screening by UtA-PI alone. METHODS: This was a prospective screening study of 70 003 singleton pregnancies including 69 735 live births and 268 (0.38%) antepartum stillbirths; 159 (59%) were secondary to impaired placentation and 109 (41%) were due to other or unexplained causes...
November 2016: Ultrasound in Obstetrics & Gynecology
https://www.readbyqxmd.com/read/27854384/short-term-outcome-of-periviable-small-for-gestational-age-babies-is-our-counseling-up-to-date
#14
A R Lawin-O'Brien, A Dall'Asta, C Knight, S Sankaran, C Scala, A Khalil, A Bhide, S Heggarty, A Rakow, D Pasupathy, A T Papageorghiou, C C Lees
OBJECTIVE: There are limited data for counseling on and management of periviable small-for-gestational-age (SGA) fetuses. We therefore aimed to investigate the short-term outcome of periviable SGA fetuses in relation to the likely underlying cause. METHODS: This was a retrospective study of data from three London tertiary fetal medicine centers obtained between 2000 and 2015. We included viable singleton pregnancies with a severely small fetus, defined as those with an abdominal circumference ≤ 3(rd) percentile, identified between 22 + 0 and 25 + 6 weeks' gestation...
November 2016: Ultrasound in Obstetrics & Gynecology
https://www.readbyqxmd.com/read/27845691/non-invasive-evaluation-of-placental-blood-flow-lessons-from-animal-models
#15
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
#16
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/27835040/developing-a-new-algorithm-for-first-and-second-trimester-preeclampsia-screening-in-twin-pregnancies
#17
Ron Maymon, Alla Trahtenherts, Ran Svirsky, Yaakov Melcer, Liora Madar-Shapiro, Esther Klog, Hamutal Meiri, Howard Cuckle
OBJECTIVES: Construct a new preeclampsia predicting algorithm in twins. METHODS: Twins sampled at 10-13 and 16-20 gestational weeks and their marker values were log transformed into multiples of the gestation-specific medians (MoMs) for singletons and entered into a new logistic regression model with/without prior risk factors. RESULTS: The cohort included 9 PE (18 samples) and 96 unaffected cases (175 samples) twin pregnant women. The algorithm constructed of PlGF, PAPP-A, PP13, Doppler UTPI, and MAP with prior risk factors generated an area under the curve of 0...
November 11, 2016: Hypertension in Pregnancy
https://www.readbyqxmd.com/read/27831924/transient-fetal-blood-redistribution-associated-with-maternal-supine-position
#18
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/27821655/renal-interlobar-vein-impedance-index-as-a-first-trimester-marker-does-not-predict-hypertensive-disorders-of-pregnancy
#19
Sammya Bezerra Maia E Holanda Moura, Paulo Cesar Praciano, Julio Augusto Gurgel Alves, Wellington P Martins, Edward Araujo Júnior, Stefan C Kane, Fabrício da Silva Costa
OBJECTIVES: The purpose of this study was to examine whether the maternal renal interlobar vein impedance index as assessed by first-trimester sonography is able to predict the later development of hypertensive disorders of pregnancy. METHODS: Venous Doppler parameters of both maternal kidneys were studied in 214 pregnant women at gestational ages of 11 weeks to 13 weeks 6 days. Patients were classified according to outcomes related to hypertensive disorders. Detection rates and areas under receiver operating characteristic curves were determined for the maternal renal interlobar vein impedance index as a first-trimester predictor of preeclampsia and gestational hypertension...
December 2016: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/27813120/prediction-of-neonatal-outcome-of-ttts-by-fetal-heart-and-doppler-ultrasound-parameters-before-and-after-laser-treatment
#20
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
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