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Uterine doppler

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https://www.readbyqxmd.com/read/29242974/effect-of-intramural-fibroid-on-uterine-and-endometrial-vascularity-in-infertile-women-scheduled-for-in-vitro-fertilization
#1
Ahmed Kamel, Akmal El-Mazny, Wafaa Ramadan, Suzy Abdelaziz, Sherine Gad-Allah, Hany Saad, Ahmed M Hussein, Emad Salah
PURPOSE: To study the effect of intramural fibroids on uterine and endometrial vascularity in infertile women scheduled for in-vitro fertilization (IVF). METHODS: 3D power Doppler was used to measure the endometrial volume and blood flow indices in 182 women with intramural fibroids not affecting the uterine cavity and compared them to a matched control group without fibroids. RESULTS: There was significantly increased vascularity in the endometrium of the fibroid group as denoted by higher endometrial VI (p = 0...
December 14, 2017: Archives of Gynecology and Obstetrics
https://www.readbyqxmd.com/read/29235099/variations-from-morning-to-afternoon-of-middle-cerebral-and-umbilical-artery-blood-flow-and-fetal-heart-rate-variability-and-fetal-characteristics-in-the-normally-developing-fetus
#2
Tehila Avitan, Ari Sanders, Ursula Brain, Dan Rurak, Tim F Oberlander, Ken Lim
OBJECTIVE: To determine if there are changes in maternal uterine blood flow, fetal brain blood flow, fetal heart rate variability, and umbilical blood flow between morning (AM) and afternoon (PM) in healthy, uncomplicated pregnancies. STUDY DESIGN: In this prospective study, 68 uncomplicated singleton pregnancies (mean 35 + 0.7 weeks gestation) underwent a standard observational protocol at both 08:00 (AM) and 13:30 (PM) of the same day. This protocol included Doppler measurements of uterine, umbilical, and fetal middle cerebral artery (MCA) volume flow parameters (flow, HR, peak systolic velocity [PSV], PI, and RI) followed by computerized cardiotocography...
December 13, 2017: Journal of Clinical Ultrasound: JCU
https://www.readbyqxmd.com/read/29227585/effect-of-ultrafiltration-on-placental-fetal-blood-flow-in-pregnancy-of-woman-undergoing-chronic-hemodialysis
#3
Luiz Paulo José Marques, Paulo Roberto Silva Marinho, Regina Rocco, Caroline de Azevedo Martins, Henrique Novo Costa Pereira, Ana Clara Lopes Barbosa Ferreira
INTRODUCTION: Patient who was undergoing hemodialysis (HD) thrice weekly usually gain 1 to 4 kg of weight in interdialytic period, mainly due to fluid accumulation by ingestion of water. Ultrafiltration (UF) during HD will be need to remove fluid excess to avoid severe medical complications secondary to fluid overload. However, in pregnant woman UF can increase the episodes of intradialytic hypotension which may lead to placental ischemic injury and predispose to fetal distress. There is little information about safe fluid amount withdrawn by UF during pregnancy...
December 11, 2017: Hemodialysis International
https://www.readbyqxmd.com/read/29197294/gestational-ultrasonography-and-dopplerfluxometry-in-capuchin-monkeys-sapajus-apella-zoometric
#4
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/29196990/diagnostic-imaging-ultrasound
#5
Stefan C Kane, Su Lynn Khong, Fabricio da Silva Costa
Diagnostic ultrasound imaging, particularly that which includes pulsed wave Doppler interrogation, is a safe, real-time modality by which the risk of developing preeclampsia can be refined, and the effects of established disease can be assessed. This chapter outlines the rationale and technique for Doppler interrogation of the maternal ophthalmic and uterine arteries and grayscale imaging of the maternal optic nerve sheath diameter.
2018: Methods in Molecular Biology
https://www.readbyqxmd.com/read/29190628/cord-blood-biomarkers-of-cardiac-dysfunction-and-damage-in-term-growth-restricted-fetuses-classified-by-severity-criteria
#6
Míriam Perez-Cruz, Fàtima Crispi, María Teresa Fernández, Johanna Alexandra Parra, Anna Valls, María Dolores Gomez Roig, Eduard Gratacós
OBJECTIVE: To assess cardiovascular function and damage in term small-for-gestational-age (SGA) and intrauterine growth-restricted (IUGR) fetuses by echocardiography and biomarkers in cord blood. METHODS: This was a cohort study including 60 normal fetuses and 47 term small fetuses subclassified as small for gestational age (SGA) with estimated fetal weight (EFW) between the 3rd and 9th centiles and normal fetoplacental Doppler (n = 14) or intrauterine growth restriction (IUGR, n = 33) if EFW <3rd centile or EFW <10th centile together with cerebroplacental ratio <5th and/or mean uterine artery pulsatility index >95th centile...
November 30, 2017: Fetal Diagnosis and Therapy
https://www.readbyqxmd.com/read/29189892/maternal-serum-homocysteine-and-uterine-artery-doppler-as-predictors-of-preeclampsia-and-poor-placentation
#7
Ahmed Mohamed Maged
No abstract text is available yet for this article.
November 30, 2017: Archives of Gynecology and Obstetrics
https://www.readbyqxmd.com/read/29183631/birth-weight-to-placenta-weight-ratio-and-its-relationship-to-ultrasonic-measurements-maternal-and-neonatal-morbidity-a-prospective-cohort-study-of-nulliparous-women
#8
N Salavati, S J Gordijn, U Sovio, R Zill-E-Huma, A Gebril, D S Charnock-Jones, S A Scherjon, G C S Smith
INTRODUCTION: Birth weight to placenta weight (BWPW)-ratio is an indicator of the ability of the placenta to maintain adequate nutrient supply to the fetus. We sought to investigate the relationship between BWPW-ratio with fetal growth, utero-placental Doppler and neonatal and maternal morbidity. METHODS: We studied a group of 3311 women recruited to a prospective cohort study of nulliparous women (Rosie Hospital, Cambridge, UK) who delivered a live born infant at term and whose placental weight and birth weight were known...
November 15, 2017: Placenta
https://www.readbyqxmd.com/read/29172110/role-of-luteal-biosynthesis-of-prostaglandin-f2%C3%AE-on-function-and-structure-of-the-corpus-luteum-during-luteolysis-in-heifers
#9
F L V Pinaffi, E R Araujo, O J Ginther
The role of endogenous prostaglandin F2α (PGF) in the induction of luteolysis by exogenous PGF was studied by simultaneous inhibition of endogenous PGF with flunixin meglumine (FM). Groups were controls (n = 8), PGF treated (n = 8), and FM + PGF treated (n = 9). Treatments were given 10 d postovulation at hours 0, 8, and 16. The protocol was based on (1) the assumption that luteolytic characteristics of exogenous PGF would be altered if the synthesis of endogenous PGF is simultaneously inhibited and (2) the reports that luteolysis involves a direct effect of uterine PGF on large luteal cells followed by an effect of the large cells on the small cells...
November 1, 2017: Domestic Animal Endocrinology
https://www.readbyqxmd.com/read/29169855/hypertensive-complications-of-pregnancy-a-clinical-overview
#10
C Antza, R Cifkova, V Kotsis
Hypertensive disorders in pregnancy are a worldwide health problem for women and their infants complicating up to 10% of pregnancies and associated with increased maternal and neonatal morbidity and mortality. In Europe, 2.3-3% of pregnancies are complicated by preeclampsia. Gestational diabetes, obesity, no previous or multiple births, maternal age less than 20 or greater than 35 years old and thrombophilia can be some of the possible factors related to increased risk for hypertension in pregnancy. Complications of hypertension during pregnancy affect both mothers and their infants...
November 20, 2017: Metabolism: Clinical and Experimental
https://www.readbyqxmd.com/read/29157099/the-association-of-first-trimester-uterine-arteries-doppler-velocimetry-with-different-clinical-phenotypes-of-hypertensive-disorders-of-pregnancy-a-longitudinal-study
#11
Tamara Stampalija, Lorenzo Monasta, Daniela D Di Martino, Mariachiara Quadrifoglio, Leila Lo Bello, Giuseppina D'Ottavio, Sara Zullino, Cristina Mastroianni, Daniela Casati, Valentina Signorelli, Eleonora Rosti, Vera Cecotti, Matteo Ceccarello, Enrico Ferrazzi
INTRODUCTION: Current classification of hypertensive disorders of pregnancy (HDP) is mostly based on temporal classification differentiating HDP according to early and late onset of the disease. However, epidemiological and clinical data suggest that there are two different clinical phenotypes of HDP that coexist at any gestational age: HDP associated to intrauterine growth restriction (HDP-IUGR) and HDP associated to appropriate for gestational age fetal growth (HDP-AGAf). The aim of the study was to evaluate the association of first trimester uterine arteries (UtA) by Doppler velocimetry, and maternal risk factors with HDP according to two different classifications: one based on gestational age at delivery (early- and late-HDP), and one based on longitudinal ultrasound evaluation of fetal growth (HDP-IUGR and HDP-AGAf), independently of the gestational age...
November 20, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/29153362/in-vivo-assessment-of-placental-elasticity-in-intrauterine-growth-restriction-by-shear-wave-elastography
#12
Hatice Arioz Habibi, Ebru Alici Davutoglu, Sedat Giray Kandemirli, Mine Aslan, Aysegul Ozel, Ayse Kalyoncu Ucar, Pinar Zeytun, Riza Madazli, Ibrahim Adaletli
PURPOSE: In this study, we evaluated the placental elasticity in vivo by shear-wave elastography in pregnant women under follow-up for intrauterine growth restriction (IUGR) and compared the elasticity values to normal pregnancies. MATERIAL AND METHODS: This prospective study included 42 pregnant women with a possible diagnosis of intrauterine growth restriction based on obstetrical grayscale and Doppler ultrasonography and 42 women with a normal pregnancy during the 2nd and 3rd trimester...
December 2017: European Journal of Radiology
https://www.readbyqxmd.com/read/29136193/early-first-trimester-uteroplacental-flow-and-the-progressive-disintegration-of-spiral-artery-plugs-new-insights-from-contrast-enhanced-ultrasound-and-tissue-histopathology
#13
V H J Roberts, T K Morgan, P Bednarek, M Morita, G J Burton, J O Lo, A E Frias
STUDY QUESTION: Does the use of a vascular contrast agent facilitate earlier detection of maternal flow to the placental intervillous space (IVS) in the first trimester of pregnancy? SUMMARY ANSWER: Microvascular filling of the IVS was demonstrated by contrast-enhanced ultrasound from 6 weeks of gestation onwards, earlier than previously believed. WHAT IS KNOWN ALREADY: During placental establishment and remodeling of maternal spiral arteries, endovascular trophoblast cells invade and accumulate in the lumen of these vessels to form 'trophoblast plugs'...
November 10, 2017: Human Reproduction
https://www.readbyqxmd.com/read/29135072/measuring-human-placental-blood-flow-with-multidelay-3d-grase-pseudocontinuous-arterial-spin-labeling-at-3t
#14
Xingfeng Shao, Dapeng Liu, Thomas Martin, Teresa Chanlaw, Sherin U Devaskar, Carla Janzen, Aisling M Murphy, Daniel Margolis, Kyunghyun Sung, Danny J J Wang
BACKGROUND: Placenta influences the health of both a woman and her fetus during pregnancy. Maternal blood supply to placenta can be measured noninvasively using arterial spin labeling (ASL). PURPOSE: To present a multidelay pseudocontinuous arterial spin labeling (pCASL) combined with a fast 3D inner-volume gradient- and spin-echo (GRASE) imaging technique to simultaneously measure placental blood flow (PBF) and arterial transit time (ATT), and to study PBF and ATT evolution with gestational age during the second trimester...
November 14, 2017: Journal of Magnetic Resonance Imaging: JMRI
https://www.readbyqxmd.com/read/29133152/laparoscopic-assisted-uterus-retrieval-from-live-organ-donors-for-uterine-transplant
#15
Shailesh Puntambekar, Milind Telang, Pankaj Kulkarni, Sanjeev Jadhav, Ravindra Sathe, Neeta Warty, Seema Puntambekar, Sandesh Kade, Mangesh Panse, Nikhil Agarkhedkar, Giriraj Gandhi, Manoj Manchekar, Hirav Parekh, Kajal Parikh, Riddhi Desai, Mehul Mehta, Mihir Chitale, Sambit Nanda
OBJECTIVE: The authors present the first ever laparoscopic assisted uterus retrieval in live donor for uterus transplant. DESIGN: A step-by-step surgical demonstration SETTING: Galaxy CARE Laparoscopy Institute, Pune, India PATIENT(S): Two patients, ages 21 and 26 with Mayer Rokitansky Kuster Hauser (MRKH) syndrome and Ashermann's syndrome respectively, with their mothers as donors. INTERVENTION(S): A Twelve member team was formed. After review of available literature on uterine transplant a protocol was formulated and submitted to the IRB...
November 10, 2017: Journal of Minimally Invasive Gynecology
https://www.readbyqxmd.com/read/29124818/diagnosis-and-management-of-patients-with-enhanced-myometrial-vascularity-associated-with-retained-products-of-conception
#16
Yvette S Groszmann, Amie Lynn Healy Murphy, Beryl R Benacerraf
OBJECTIVES: We performed this study to assess the complication rate, including the estimated amount of blood loss, in patients who underwent dilation and curettage for treatment of retained products of conception with markedly enhanced myometrial vascularity mimicking arteriovenous malformations. METHODS: This is a retrospective medical records review study of patients with retained products of conception with enhanced myometrial vascularity presenting to our ultrasound unit between August 1, 2015 and August 1, 2017...
November 10, 2017: Ultrasound in Obstetrics & Gynecology
https://www.readbyqxmd.com/read/29104668/uterine-artery-blood-flow-and-microvessel-density-by-vaginal-color-doppler-ultrasonography-in-embryo-implantation-failure
#17
Zhen Li, Xingling Wang, Yichun Guan, Xiaona Yu, Jing Liu, Zhan Zhang
The purpose of this study was to investigate the clinical application of uterine artery blood flow parameters by vaginal color Doppler ultrasonography in patients with repeated embryo implantation failure and to examine the correlation between uterine artery blood flow parameters and microvessel density (MVD). We monitored the outcomes of in vitro fertilization and embryo transfer in eighty patients. We divided the patients into two groups: Pregnancy (successful pregnancy, n=50) and repeated implantation failure (more than two failures of in vitro fertilization-embryo transfer, n=30)...
November 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29102503/maternal-hemodynamics-a-method-to-classify-hypertensive-disorders-of-pregnancy
#18
Enrico Ferrazzi, Tamara Stampalija, Lorenzo Monasta, Daniela Di Martino, Sharona Vonck, Wilfried Gyselaers
BACKGROUND: The classification of hypertensive disorders of pregnancy is based on the time at the onset of hypertension, proteinuria, and other associated complications. Maternal hemodynamic interrogation in hypertensive disorders of pregnancy considers not only the peripheral blood pressure but also the entire cardiovascular system, and it might help to classify the different clinical phenotypes of this syndrome. OBJECTIVE: This study aimed to examine cardiovascular parameters in a cohort of patients affected by hypertensive disorders of pregnancy according to the clinical phenotypes that prioritize fetoplacental characteristics and not the time at onset of hypertensive disorders of pregnancy...
November 2, 2017: American Journal of Obstetrics and Gynecology
https://www.readbyqxmd.com/read/29096560/a-novel-modality-for-intrapartum-fetal-heart-rate-monitoring
#19
Eran Ashwal, Shiri Shinar, Amir Aviram, Sharon Orbach, Yariv Yogev, Liran Hiersch
BACKGROUND: Intrapartum fetal heart rate (FHR) monitoring is well recommended during labor to assess fetal wellbeing. Though commonly used, the external Doppler and fetal scalp electrode monitor have significant shortcomings. Lately, non-invasive technologies were developed as possible alternatives. OBJECTIVE: The objective of this study is to compare the accuracy of FHR trace using novel Electronic Uterine Monitoring (EUM) to that of external Doppler and fetal scalp electrode monitor...
November 2, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/29073540/uterine-endometrial-vascularization-during-ovarian-follicular-growth-in-llamas-the-effect-of-estradiol-plasma-concentration
#20
Mauricio Silva, Felipe Urra, Marcelo Ratto
The aim of this study was to evaluated changes in endometrial vascularization area (EVA) between the left and right uterine horn: a) during the ovarian follicular growth in intact llamas, and b) after exogenous estradiol administration of estradiol benzoate in ovariectomized (OVX) llamas. In experiment 1 follicle wave emergence was synchronized (n = 5 llamas) by follicle ablation (Day 0). Females were examined every other day from Day 1 to Day 27, using B mode ultrasonography to evaluate dominant follicle growth profile...
October 17, 2017: Theriogenology
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