نتایج جستجو برای: uta

تعداد نتایج: 452  

Journal: :Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology 2016
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...

2013
Michela Cioni Christian Mittelholzer Marion Wernli Hans H. Hirsch

BACKGROUND Among human polyomaviruses, only BK virus (BKV) and JC virus (JCV) encode an agnoprotein upstream of VP1 on the viral late transcript. BKV agnoprotein is abundantly expressed late in the viral life cycle, but specific cellular and humoral immune responses are low or absent. We hypothesized that agnoprotein might contribute to BKV immune evasion by downregulating HLA expression, simil...

Journal: :Circulation 2002
T David Gbadebo Robert W Trimble Michelle S C Khoo Joel Temple Dan M Roden Mark E Anderson

BACKGROUND We have shown that the calmodulin inhibitor W-7 suppresses torsade de pointes (TdP) without shortening the QT interval, which is consistent with other findings that QT prolongation, per se, is insufficient to generate TdP. ECGs were analyzed from a well-characterized animal model of TdP to identify more reliable predictors of this life-threatening ventricular arrhythmia. METHODS AN...

2003
M. Kholghi

Wastewater planning management is a complex problem involving agricultural, rural and industrial interests. In countries facing rapid population growth, identifying methods that can allow them to take good decisions among several competitive alternatives is of utmost importance. The purpose of this paper is to present a methodology for a wastewater planning management system using a Multi-crite...

Journal: :Neuro endocrinology letters 2013
Mariusz Grzesiak Jan Wilczynski

OBJECTIVES The aims were to investigate whether there are any changes in placental and fetal circulation during Atosiban tocolysis within the first 48 hours of therapy. METHODS Detailed Doppler evaluation of placental and fetal circulation was performed prior to Atosiban administration and thereafter at 24 and 48 hours. Maternal heart rate and the pulsatility index (PI) in both uterine arteri...

2001
Jin Wang Martin Caffrey Michael J. Bedzyk

Variable period X-ray standing wave (XSW) measurements have been used previously to monitor and to interpret structure rearrangements undergone during a phase transition in a model membrane with angstrom resolution. In the present study, an extended length scale ranging from 40 up to ca. 1000 8, has been used without sacrificing resolution to address the question of whether the phase transition...

Journal: :Revista brasileira de ginecologia e obstetricia : revista da Federacao Brasileira das Sociedades de Ginecologia e Obstetricia 2013
Nelsilene Mota Carvalho Tavares Sabrina Girotto Ferreira João Renato Bennini Emílio Francisco Marussi Ricardo Barini Cleisson Fábio Andrioli Peralta

PURPOSE To create longitudinal reference intervals for pulsatility index (PI) of the umbilical (UA), middle cerebral (MCA), uterine (UtA) arteries and ductus venosus (DV) in a Brazilian cohort. METHODS A longitudinal observational study performed from February 2010 to May 2012. Low risk pregnancies were scanned fortnightly from 18 to 40 weeks for the measurements of PI of the UA, MCA, DV and ...

Journal: :Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology 2009
L K Proctor M Toal S Keating D Chitayat N Okun R C Windrim G C S Smith J C P Kingdom

OBJECTIVES Screening studies for trisomy 21 demonstrate that low maternal serum pregnancy-associated plasma protein-A (PAPP-A) at 11-13 weeks' gestation is associated with stillbirth, intrauterine growth restriction (IUGR) and pre-eclampsia in chromosomally normal fetuses. However, the strength of these associations is too weak to justify screening for these placental insufficiency syndromes. O...

Journal: :Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology 2017
A M Panaitescu R Akolekar N Kametas A Syngelaki K H Nicolaides

OBJECTIVE To compare the degree of impaired placentation in women with and those without chronic hypertension (CH) who develop pre-eclampsia (PE) in pregnancy. METHODS Data were derived from prospective screening for adverse pregnancy outcomes in women with singleton pregnancy attending their first routine hospital visit at 11 + 0 to 13 + 6 weeks' gestation. This visit included recording of m...

Journal: :Medical records-international medical journal 2023

Aim: We aimed to prospectively investigate the effect of first trimester vaginal bleeding on screening test, uterine artery (UtA) Doppler results and perinatal outcomes. Material Methods: Fifty cases that presented with in between 2019 2020 constituted early (abortus imminens-threatened abortion) group fifty without a history pregnancy control group. Demographic datas were noted at visit. Both ...

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