نتایج جستجو برای: fetal heart rate

تعداد نتایج: 1331591  

Journal: :Physiological measurement 2018
G J J Warmerdam R Vullings J O E H Van Laar M B Van der Hout-Van der Jagt J W M Bergmans L Schmitt S G Oei

OBJECTIVE Monitoring of the fetal condition during labor is currently performed by cardiotocograpy (CTG). Despite the use of CTG in clinical practice, CTG interpretation suffers from a high inter- and intra-observer variability and a low specificity. In addition to CTG, analysis of fetal heart rate variability (HRV) has been shown to provide information on fetal distress. However, fetal HRV can...

Journal: :Journal of midwifery & women's health 2007

Fetal heart rate surveillance is a standard component of intrapartum care. The fetal heart rate can be evaluated using intermittent auscultation or electronic fetal monitoring. Research that has compared these 2 strategies found them to be equivalent with respect to long-term neonatal outcomes. The purpose of this clinical bulletin by the American College of Nurse-Midwives is to review the evid...

2014
Safak Olgan Mehmet Sakinci Murat Ozekinci Nasuh Utku Dogan Erkan Cagliyan Sabahattin Altunyurt

Umbilical artery\vein, middle cerebral artery, and ductus venosus Doppler velocimetry were performed at 33 weeks of gestation in the settings of an intrauterine growth restricted fetus during a heart rate deceleration. Interestingly, we recorded a sudden onset redistribution of fetal blood flow with fetal bradycardia. Spontaneous normalization of waveforms was observed once fetal heart rate ret...

Ilkhanizadeh B Mazloomi P Moghadasian N Nanbakhsh F, Oshnouei S

Background: Regarding the develops of treatment and management of infertility during recent three decades, success of these methods is limited. Therefore, this study tried to show how corticosteroid therapy improves the results of ICSI. Materials and Methods: This semi clinical trail studywithout control group, including infertile women were candidate to ICSI of Kosar infertility center in urmi...

Journal: :Acta obstetricia et gynecologica Scandinavica 2014
Gerard H A Visser Jørg Kessler

Five randomized controlled trials have been published on intrapartum fetal heart rate monitoring with ST analysis of the fetal electrocardiogram, but the debate on its usefulness has not yet been ended. We consider ST analysis a useful and cost-effective addition to conventional fetal heart rate monitoring. We will provide support for this opinion by discussing the pathophysiology of ST changes...

Journal: :Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology 1999
N T Ursem E B Clark B B Keller W C Hop J W Wladimiroff

OBJECTIVE To investigate the hypothesis that alterations in heart rate variability, peak systolic velocity variability and time-averaged velocity variability in the human umbilical artery may predict early signs of dysfunctional fetal-placental coupling in pregnancies that later develop pregnancy-induced hypertension. METHODS Doppler flow velocity recordings from the umbilical artery were per...

2012
Torbjørn Moe Eggebø Claudia Heien Magne Berget Christian Lycke Ellingsen

Objectives. To investigate the detection rate of major fetal heart defects in a low-risk population implementing routine use of color Doppler. Material and Methods. In a prospective observational study, all women undergoing fetal heart scanning (including 6781 routine examinations in the second trimester) during a three-year period were included. First a gray-scale scanning was performed includ...

Journal: :Neuro endocrinology letters 2013
Mariola Ropacka-Lesiak Tomasz Korbelak Grzegorz Breborowicz

OBJECTIVES The evaluation of hypoxia index (HI) in the prediction of abnormal fetal heart rate at delivery in uncomplicated pregnancies. MATERIAL AND METHODS The study group included 148 pregnant patients at term (69 patients with and 79 without brain sparing effect). The value of C/U ratio and HI was determined. Next, its value in predicting abnormal fetal heart rate during labor was evaluat...

Journal: :Early human development 1994
M J Noordam F M Hoekstra W C Hop J W Wladimiroff

In 14 normally developing term fetuses, the relationship between the blood flow velocity waveforms at cerebral arterial level (internal carotid artery, anterior, middle and posterior cerebral artery) and fetal behavioural states was studied using Doppler colour flow imaging. Behavioural state dependent changes in absolute flow velocities occurred in all vessels, except for the middle cerebral a...

Journal: :Developmental psychobiology 1998
J A DiPietro K A Costigan A K Shupe E K Pressman T R Johnson

This longitudinal study investigated neurobehavioral development in the human fetus from 24 to 36 weeks gestation. Subject (N=103) were stratified by socioeconomic class. Fetal data were collected for 50 min at three intervals, and included measures of heart rate, movement, and biobehavioral patterns. Repeated measures analysis of variance by fetal sex and maternal socioeconomic status was used...

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