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Fetal heart rate monitoring

Habiba Kapaya, Richard Jacques, Dilly Anumba
OBJECTIVE: To assess the influence of gender, time of the day and gestational age on fetal heart rate (FHR) parameters between appropriate-for-gestational-age (AGA) and small-for-gestational age (SGA) fetuses using a portable fetal ECG monitor employed in the home setting. METHODS: We analysed and compared the antenatal FHR data collected in the home setting on 61 healthy pregnant women with singleton pregnancies from 24 weeks gestation. Of the 61 women, 31 had SGA fetuses (estimated fetal weight below the tenth gestational centile) and 30 were pregnant with AGA fetuses...
2018: PloS One
Shashikant L Sholapurkar
The survival of cardiotocography (CTG) as a tool for intrapartum fetal monitoring seems threatened somewhat unjustifiably and unwittingly despite the absence of better alternatives. Fetal heart rate (FHR) decelerations are center-stage (most important) in the interpretation of CTG with maximum impact on three-tier classification. The pattern-discrimination of FHR decelerations is inexorably linked to their nomenclature. Unscientific or flawed nomenclature of decelerations can explain the dysfunctional CTG interpretation leading to errors in detection of acidemic fetuses...
April 2018: Journal of Clinical Medicine Research
J Pavlíček, E Klásková, E Doležálková, D Matura, R Špaček, T Gruszka, S Polanská, M Procházka
OBJECTIVE: To audit the development and success rate of prenatal detection of congenital heart defects (CHDs), and to evaluate the effectiveness of diagnostics performed in standardized scanning planes. SETTING: Department of Pediatrics, University Hospital Ostrava. DESIGN: Retrospective study. METHODS: Ultrasound examination of fetal heart (fetal echocardiography) was performed in the second trimester pregnancy. The observed region was the Moravian-Silesian region; the assessment was performed in the retrospective study performed between 2000- 2016...
2018: Ceská Gynekologie
Kim M J Verdurmen, Guy J J Warmerdam, Carlijn Lempersz, Alexandra D J Hulsenboom, Joris Renckens, Jeanne P Dieleman, Rik Vullings, Judith O E H van Laar, S Guid Oei
BACKGROUND: Betamethasone is widely used to enhance fetal lung maturation in case of threatened preterm labour. Fetal heart rate variability is one of the most important parameters to assess in fetal monitoring, since it is a reliable indicator for fetal distress. AIM: To describe the effect of betamethasone on fetal heart rate variability, by applying spectral analysis on non-invasive fetal electrocardiogram recordings. STUDY DESIGN: Prospective cohort study...
March 2, 2018: Early Human Development
Zhi-Peng Wang, Jue Ma, Sheng Wang, Li-Na Yu, Jin-Feng Wei, Jin-Dong Xu
OBJECTIVE: To compare the safety of sevoflurane anesthesia with laryngeal mask and tracheal intubation in cesarean section in women with heart disease. METHODS: Fifty-two pregnant women with heart diseases undergoing cesarean section were randomized into laryngeal mask (LAM) group and tracheal intubation group. In LAM group, 6% sevoflurane was given at the rate of 6 L/min for induction with a maintenance sevoflurane concentration of 3%. In the intubation group, 1...
February 20, 2018: Nan Fang Yi Ke da Xue Xue Bao, Journal of Southern Medical University
Phillip Schulten Sebastian, Jan Philip Suppelna, Timoleon Dagres, Günter Noè, Michael Anapolski, Joscha Reinhard, Harald Krentel, Clemens Tempfer, Sven Schiermeier
OBJECTIVE: This study examines the recommendations of international guidelines on the use of antepartum and intrapartum cardiotocography. MATERIAL AND METHODS: The guidelines of Germany, Canada, UK, USA, Sri Lanka, Australia as well as FIGO have been compared. The recommendations on the use of cardiotocography were separately evaluated for antepartum and intrapartum use. RESULTS: Antepartum: In risk-free pregnancies the use of cardiotocography is not recommended in all countries...
February 23, 2018: Zeitschrift Für Geburtshilfe und Neonatologie
Peter Brocklehurst, David Field, Keith Greene, Edmund Juszczak, Sara Kenyon, Louise Linsell, Chris Mabey, Mary Newburn, Rachel Plachcinski, Maria Quigley, Philip Steer, Liz Schroeder, Oliver Rivero-Arias
BACKGROUND: Continuous electronic fetal monitoring (EFM) in labour is widely used and computerised interpretation has the potential to increase its utility. OBJECTIVES: This trial aimed to find out whether or not the addition of decision support software to assist in the interpretation of the cardiotocograph (CTG) reduced the number of poor neonatal outcomes, and whether or not it was cost-effective. DESIGN: Two-arm individually randomised controlled trial...
February 2018: Health Technology Assessment: HTA
Sara Rivenes Lafontan, Johanne Sundby, Hege L Ersdal, Muzdalifat Abeid, Hussein L Kidanto, Columba K Mbekenga
To increase labor monitoring and prevent neonatal morbidity and mortality, a new wireless, strap-on electronic fetal heart rate monitor called Moyo was introduced in Tanzania in 2016. As part of the ongoing evaluation of the introduction of the monitor, the aim of this study was to explore the attitudes and perceptions of women who had worn the monitor continuously during their most recent delivery and perceptions about how it affected care. This knowledge is important to identify barriers towards adaptation in order to introduce new technology more effectively...
February 9, 2018: International Journal of Environmental Research and Public Health
Tiziana Frusca, Tullia Todros, Christoph Lees, Caterina M Bilardo
BACKGROUND: Early-onset fetal growth restriction represents a particular dilemma in clinical management balancing the risk of iatrogenic prematurity with waiting for the fetus to gain more maturity, while being exposed to the risk of intrauterine death or the sequelae of acidosis. OBJECTIVE: The Trial of Umbilical and Fetal Flow in Europe was a European, multicenter, randomized trial aimed to determine according to which criteria delivery should be triggered in early fetal growth restriction...
February 2018: American Journal of Obstetrics and Gynecology
Mark P Hehir, Dwight J Rouse, Russell S Miller, Cande V Ananth, Jason D Wright, Zainab Siddiq, Mary E DʼAlton, Alexander M Friedman
OBJECTIVE: To characterize probabilities of vaginal delivery based on second-stage duration along with maternal and neonatal risks for women undergoing labor after cesarean delivery. METHODS: This unplanned secondary analysis of the Maternal-Fetal Medicine Units Cesarean Registry, a prospective observational cohort, assessed outcomes in women with a prior uterine scar and included women with a previous cesarean delivery without prior vaginal delivery who reached the second stage of labor...
March 2018: Obstetrics and Gynecology
Alison G Cahill, Methodius G Tuuli, Molly J Stout, Julia D López, George A Macones
BACKGROUND: Intrapartum electronic fetal monitoring (EFM) is the most commonly used tool in obstetrics in the United States, however, which EFM patterns predict acidemia remains unclear. OBJECTIVE: This study was designed to describe the frequency of patterns seen in labor using modern nomenclature, and to test the hypothesis that visually interpreted patterns are associated with acidemia and morbidities in term infants. We further identified patterns prior to delivery, alone or in combination, predictive of acidemia and neonatal morbidity...
January 31, 2018: American Journal of Obstetrics and Gynecology
Chao Shen, Martin G Frasch, Hau-Tieng Wu, Christophe Louis Herry, Mingju Cao, André Desrochers, Gilles Fecteau, Patrick Burns
OBJECTIVE: The utility of fetal heart rate (FHR) monitoring can only be achieved with an acquisition sampling rate that preserves the underlying physiological information on the millisecond time scale (1000 Hz rather than 4 Hz). For such acquisition, fetal ECG (fECG) is required, rather than the ultrasound to derive FHR. We tested one recently developed algorithm, SAVER, and two widely applied algorithms to extract fECG from a single channel maternal ECG signal recorded over the xyphoid process rather than the routine abdominal signal...
January 25, 2018: Physiological Measurement
Junichi Hasegawa, Tomoaki Ikeda, Satoshi Toyokawa, Emi Jojima, Shoji Satoh, Kiyotake Ichizuka, Nanako Tamiya, Akihito Nakai, Keiya Fujimori, Tsugio Maeda, Hideaki Masuzaki, Satoru Takeda, Hideaki Suzuki, Shigeru Ueda, Tsuyomu Ikenoue
AIM: The study identifies the relevant obstetric factors associated with fetal heart rate (FHR) monitoring for cerebral palsy (CP) in pregnant women with hypertensive disorders of pregnancy (HDP). METHODS: The subjects were neonates with CP (birth weight ≥ 2000 g, gestational age ≥ 33 weeks) who were approved for compensation for CP by the Operating Organization of the Japan Obstetric Compensation System between 2009 and 2012. After selection of women with antepartum HDP, obstetric characteristics associated with FHR monitoring were analyzed...
January 23, 2018: Journal of Obstetrics and Gynaecology Research
Catherine L Nevin, Evan Formosa, Yohei Maki, Brad Matushewski, Timothy R H Regnault, Bryan S Richardson
We determined the impact of moderate maternal nutrient restriction (MNR) in guinea pigs with fetal growth restriction (FGR) on offspring body and organ weights, hypothesizing that FGR-MNR animals will show catch-up growth, but with organ-specific differences. Guinea pig sows were fed ad libitum (Control) or 70% of the control diet from 4 week`s pre-conception, switching to 90% at mid-pregnancy (MNR). Control newborns >95g (appropriate for gestational age or AGA, N=37) and MNR newborns <85g (FGR, N=37) were monitored until neonatal (~25 days) or adult (~110 days) necropsy...
January 10, 2018: American Journal of Physiology. Regulatory, Integrative and Comparative Physiology
Guy J J Warmerdam, Rik Vullings, Judith O E H Van Laar, M Beatrijs Van der Hout-Van der Jagt, Jan W M Bergmans, Lars Schmitt, S Guid Oei
Monitoring of the fetal condition during labor is currently performed by cardiotocography (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 be strongly influenced by uterine contractions, particularly during the second stage of labor. Therefore, the aim of this study is to examine if distinguishing contractions from rest periods can improve the detection rate of HRV features for fetal distress during the second stage of labor...
January 19, 2018: Physiological Measurement
Daniel J Kiely
No abstract text is available yet for this article.
December 21, 2017: Journal of Obstetrics and Gynaecology Canada: JOGC, Journal D'obstétrique et Gynécologie du Canada: JOGC
P Sutha, V E Jayanthi
Birth defect-related demise is mainly due to congenital heart defects. In the earlier stage of pregnancy, fetus problem can be identified by finding information about the fetus to avoid stillbirths. The gold standard used to monitor the health status of the fetus is by Cardiotachography(CTG), cannot be used for long durations and continuous monitoring. There is a need for continuous and long duration monitoring of fetal ECG signals to study the progressive health status of the fetus using portable devices. The non-invasive method of electrocardiogram recording is one of the best method used to diagnose fetal cardiac problem rather than the invasive methods...
December 8, 2017: Journal of Medical Systems
K Spyridou, I Chouvarda, L Hadjileontiadis, N Maglaveras
OBJECTIVE: This work aims to investigate the impact of gestational age and fetal gender on fetal heart rate (FHR) tracings. APPROACH: Different linear and nonlinear parameters indicating correlation or complexity were used to study the influence of fetal age and gender on FHR tracings. The signals were recorded from 99 normal pregnant women in a singleton pregnancy at gestational ages from 28 to 40 weeks, before the onset of labor. There were 56 female fetuses and 43 male...
January 30, 2018: Physiological Measurement
Craig V Towers, John Trussell, Robert E Heidel, Lindsey Chernicky, Bobby C Howard
OBJECTIVE: To our knowledge, this is the largest prospective study reporting on maternal heart rate (MHR) levels in laboring women (30 patients), and maternal tachycardia that is a potential risk factor in fetal monitoring confusion. Our objective was to analyze a large population of contiguous laboring patients and to assess the MHR levels attained during the second stage. METHODS: We performed a prospective study that analyzed MHR levels of second-stage laboring patients evaluating numerous predisposing maternal conditions...
December 10, 2017: Journal of Maternal-fetal & Neonatal Medicine
Y Y Lu, H Huang, W L Mao, R H Liu, M J Hu, L X Shao, M P Hu, J Li
Objective: To investigate the median effective dose (ED(50)) of hydromorphone and the appropriate concentration of ropivacaine combined with hydromorphone in epidural labor analgesia. Methods: One hundred and forty nulliparous women undergoing labor selected for delivery with epidural analgesia were enrolled in our hospital from January to June 2016. The first of top 50 women received 0.12% ropivacaine plus 20 μg/ml hydromorphone complex solution, then sequential women were used the modified sequential method to determine the ED(50) and ED(95) of hydromorphone...
November 14, 2017: Zhonghua Yi Xue za Zhi [Chinese medical journal]
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