keyword
MENU ▼
Read by QxMD icon Read
search

Uterine artery doppler

keyword
https://www.readbyqxmd.com/read/27914630/uterine-blood-flow-in-sheep-and-goats-during-the-peri-parturient-period-assessed-by-transrectal-doppler-sonography
#1
Mohammed Elmetwally, Heinrich Bollwein
The aim of the present study was to evaluate uterine blood flow (UBF) during the postpartum period in small ruminants. The study involved measures of UBF in 5 ewes and 5 goats during the first 4 weeks after parturition. Transrectal quantification of UBF was assessed by determining the diameter (DM), time averaged mean velocity (TAMEAN), blood flow volume (BFV), blood flow acceleration (ACCE) and pulsatility index (PI) in the uterine arteries ipsilateral to the previously gravid uterine horn(s) at Wk 20 of gestation and every 3days from the day of parturition (D 0) until Day 27 postpartum (D 27)...
November 25, 2016: Animal Reproduction Science
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/27883242/sflt-1-plgf-for-early-onset-pre-eclampsia-prediction-steps-study-of-early-pre-eclampsia-in-spain
#3
A Perales, J L Delgado, M De La Calle, J A García-Hernández, A I Escudero, J M Campillos, M D Sarabia, B Laíz, M Duque, M Navarro, P Calmarza, M Hund, F V Álvarez
OBJECTIVES: A high ratio of soluble fms-like tyrosine kinase-1 (sFlt-1) to placental growth factor (PlGF) has been linked with pre-eclampsia (PE). We evaluated the sFlt-1/PlGF ratio as a predictive marker for early-onset PE in women at risk of PE. METHODS: This prospective, Spanish, multicenter study included pregnant women with PE risk factors (including: history of intrauterine growth restriction; PE; eclampsia; hemolysis, elevated liver enzymes and low platelet count syndrome; pre-gestational diabetes; and abnormal uterine artery Doppler ultrasound)...
November 24, 2016: Ultrasound in Obstetrics & Gynecology
https://www.readbyqxmd.com/read/27872414/effect-of-low-dose-aspirin-on-midluteal-phase-uterine-artery-blood-flow-in-patients-with-recurrent-pregnancy-loss
#4
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/27868455/identification-of-patients-at-risk-for-preeclampsia-with-the-use-of-uterine-artery-doppler-velocimetry-and-copeptin
#5
Ali Yeşil, Ammar Kanawati, Çağlar Helvacıoğlu, Cihan Kaya, Çağseli Göksu Özgün, Hüseyin Cengiz
PURPOSE: To investigate the relationship between maternal copeptin levels and uterine artery Doppler examination and progress of preeclampsia. MATERIALS AND METHODS: A cross-sectional study was designed with women those were screened at 20 + 0 - 24 + 6 weeks' gestation between May 2014 and August 2014. The obstetric records of all normotensive women were examined. Uterine artery Doppler velocimetry results and serum copeptin levels were measured. The patients were divided in two groups according to normal (n = 67) and abnormal uterine artery Doppler (n = 21) findings...
November 21, 2016: Journal of Maternal-fetal & Neonatal 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
#6
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
#7
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
#8
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/27854395/prediction-of-stillbirth-from-placental-growth-factor-at-19-24-weeks
#9
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
#10
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
#11
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/27836536/doppler-screening-and-predictors-of-adverse-outcomes-in-high-risk-pregnancies-affected-by-tobacco
#12
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/27824563/adaptive-spectral-envelope-estimation-for-doppler-ultrasound
#13
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/27807890/impact-of-aspirin-on-trophoblastic-invasion-in-women-with-abnormal-uterine-artery-doppler-at-11%C3%A2-%C3%A2-14-weeks-a-randomized-controlled-study-asap
#14
Elena Scazzocchio, Dani Oros, Daysi Diaz, Juan C Ramirez, Marta Ricart, Eva Meler, Rafael González de Agüero, Eduard Gratacos, Francesc Figueras
BACKGROUND: Defective trophoblastic invasion is a key feature in many of cases of preeclampsia. Uterine artery Doppler is a validated non-invasive surrogate of this trophoblastic invasion. OBJECTIVE: To explore whether low-dose aspirin administered from the first trimester improves trophoblastic invasion, evaluated by uterine Doppler, during the second and third trimesters in women defined as high-risk by abnormal uterine artery Doppler at first trimester. METHODS: This randomized Phase II study had a triple-blind, parallel-arm, controlled design...
November 3, 2016: Ultrasound in Obstetrics & Gynecology
https://www.readbyqxmd.com/read/27807888/uterine-haemodynamic-vascularization-and-blood-pressure-changes-along-the-oestrous-cycle-in-bitches
#15
I B Nogueira, L L Almeida, Dsr Angrimani, M M Brito, R A Abreu, C I Vannucchi
Characterization of the bitch's reproductive physiology is of utmost importance for the development of new reproductive techniques and the diagnosis of reproductive diseases. In this respect, uterine B-mode ultrasonography has been employed in several studies; however, the focus on haemodynamic changes along the oestrous cycle is yet to be described. Thus, the aim of this study was to characterize haemodynamic changes (uterine vascularization, systemic arterial blood pressure and heart rate) throughout the oestrous cycle in bitches...
November 3, 2016: Reproduction in Domestic Animals, Zuchthygiene
https://www.readbyqxmd.com/read/27747919/the-impact-of-small-for-gestational-age-births-in-early-and-late-preeclamptic-pregnancies-for-preeclampsia-recurrence-a-cohort-study-of-successive-pregnancies-in-sweden
#16
Sven Cnattingius, Anna-Karin Wikström, Olof Stephansson, Kari Johansson
BACKGROUND: Results from uterine artery Doppler investigations suggest that the aetiology of late preeclampsia with fetal growth restriction may be more similar to the aetiology of early preeclampsia than with late preeclampsia without fetal growth restriction. We hypothesised that a small-for-gestational-age (SGA) birth in a late preeclamptic pregnancy may be associated with increased subsequent risk of early preeclampsia. We also studied effects of maternal factors on risks of preeclampsia recurrence...
November 2016: Paediatric and Perinatal Epidemiology
https://www.readbyqxmd.com/read/27739590/n-acetylcysteine-a-glutathione-precursor-reverts-vascular-dysfunction-and-endothelial-epigenetic-programming-in-intrauterine-growth-restricted-guinea-pigs
#17
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/27734717/association-between-uterine-artery-doppler-blood-flow-changes-and-arterial-wall-elasticity-in-pregnant-women
#18
Emma von Wowern, Jakob Andersson, Ida Dalene Skarping, Maria T Howie, Per Olofsson
INTRODUCTION: Uterine artery (UtA) Doppler velocimetry changes and increased arterial stiffness are associated with preeclampsia. We aimed to investigate the relation between UtA velocimetry changes and arterial stiffness in pregnant women. METHODS: Doppler velocimetry and photoplethysmographic digital pulse wave analysis (DPA) were performed in 173 pregnant women in the second or third trimester, where UtA Doppler pulsatility index (PI), diastolic notching, and UtA score (UAS) combining notching and high PI were calculated...
October 13, 2016: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/27720309/role-of-uteroplacental-and-fetal-doppler-in-identifying-fetal-growth-restriction-at-term
#19
Asma Khalil, Basky Thilaganathan
Identification of the fetus at risk of adverse outcome at term is a challenge to both clinicians and researchers alike. Despite the fact that fetal growth restriction (FGR) is a known risk factor for stillbirth, at least two thirds of the stillbirth cases at term are not small for gestational age (SGA) - a commonly used proxy for FGR. However, the majority of SGA fetuses are constitutionally small babies and do not suffer from adverse perinatal outcome. The cerebroplacental ratio (CPR) is emerging as a marker of failure to reach growth potential at term...
September 23, 2016: Best Practice & Research. Clinical Obstetrics & Gynaecology
https://www.readbyqxmd.com/read/27703566/early-prognostic-factors-for-the-progress-of-preeclampsia-our-experience-in-the-period-2010-2011
#20
Mariya Angelova, Ivan Todorov, Emil Kovachev
AIM: To determine the prognostic value of the low Pregnancy-associated plasma protein A (PAPP-A) levels in the early stages of pregnancy (11-13 weeks GA) independently and in combination with a Doppler test of the uterine arteries during the second half of pregnancy (22-23 weeks GA). MATERIAL AND METHODS: The study covered the period 2010-2011 and included 106 pregnant women, aged 35-40, with a single child pregnancy. The research excluded pregnant women with anomalies of the fetus, smokers and women taking prophylactically low doses of aspirin...
September 15, 2016: Open Access Macedonian Journal of Medical Sciences
keyword
keyword
75655
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"