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Fetal heart rate

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https://www.readbyqxmd.com/read/29235940/slc9b1-methylation-predicts-fetal-intolerance-of-labor
#1
Anna K Knight, Karen N Conneely, Varun Kilaru, Dawayland Cobb, Jennifer L Payne, Samantha Meilman, Elizabeth J Corwin, Zachary A Kaminsky, Anne L Dunlop, Alicia K Smith
Fetal intolerance of labor is a common indication for delivery by Caesarean section. Diagnosis is based on the presence of category III fetal heart rate tracing, which is an abnormal heart tracing associated with increased likelihood of fetal hypoxia and metabolic acidemia. This study analyzed data from 177 unique women who, during their prenatal visits (7-15 weeks and/or 24-32 weeks) to Atlanta area prenatal care clinics, consented to provide blood samples for DNA methylation (HumanMethylation450 BeadChip) and gene expression (Human HT-12 v4 Expression BeadChip) analyses...
December 13, 2017: Epigenetics: Official Journal of the DNA Methylation Society
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/29230337/prenatal-diagnosis-of-a-segmental-small-bowel-volvulus-with-threatened-premature-labor
#3
Barbara Monard, Nicolas Mottet, Rajeev Ramanah, Didier Riethmuller
Fetal primary small bowel volvulus is extremely rare but represents a serious life-threatening condition needing emergency neonatal surgical management to avoid severe digestive consequences. We report a case of primary small bowel volvulus with meconium peritonitis prenatally diagnosed at 27 weeks and 4 days of gestation during threatened premature labor with reduced fetal movements. Ultrasound showed a small bowel mildly dilated with thickened and hyperechogenic intestinal wall, with a typical whirlpool configuration...
2017: Case Reports in Obstetrics and Gynecology
https://www.readbyqxmd.com/read/29228911/intrapartum-factors-associated-with-neonatal-hypoxic-ischemic-encephalopathy-a-case-controlled-study
#4
Vanessa E Torbenson, Mary Catherine Tolcher, Kate M Nesbitt, Christopher E Colby, Sherif A El-Nashar, Bobbie S Gostout, Amy L Weaver, Michaela E Mc Gree, Abimbola O Famuyide
BACKGROUND: Neonatal encephalopathy (NE) affects 2-4/1000 live births with outcomes ranging from negligible neurological deficits to severe neuromuscular dysfunction, cerebral palsy and death. Hypoxic ischemic encephalopathy (HIE) is the sub cohort of NE that appears to be driven by intrapartum events. Our objective was to identify antepartum and intrapartum factors associated with the development of neonatal HIE. METHODS: Hospital databases were searched using relevant diagnosis codes to identify infants with neonatal encephalopathy...
December 11, 2017: BMC Pregnancy and Childbirth
https://www.readbyqxmd.com/read/29222728/fetal-electrocardiogram-extraction-and-analysis-using-adaptive-noise-cancellation-and-wavelet-transformation-techniques
#5
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
https://www.readbyqxmd.com/read/29215158/congenital-diaphragmatic-hernia-with-heart-defect-has-a-high-risk-for-hypoplastic-left-heart-syndrome-and-major-extra-cardiac-malformations-10-year-national-cohort-from-finland
#6
Johanna Hautala, Emma Karstunen, Annukka Ritvanen, Risto Rintala, Ilkka P Mattila, Juha Räsänen, Pertti K Suominen, Tiina Ojala
INTRODUCTION: Congenital diaphragmatic hernia (CDH) has a well-known risk of congenital heart defects with poor prognosis. This study was conducted to determine the national total prevalence and prenatal detection rates of CDH with heart defects and its association with major extra-cardiac malformations and to further evaluate the impact of the heart defect severity on survival. MATERIAL AND METHODS: A 10-year national cohort was derived from four national registries, including live births, stillbirths, and terminations of pregnancy for fetal anomalies...
December 7, 2017: Acta Obstetricia et Gynecologica Scandinavica
https://www.readbyqxmd.com/read/29207325/prediction-of-miscarriage-in-women-with-viable-intrauterine-pregnancy-a-systematic-review-and-diagnostic-accuracy-meta-analysis
#7
REVIEW
Rekha N Pillai, Justin C Konje, Matthew Richardson, Douglas G Tincello, Neelam Potdar
Both ultrasound and biochemical markers either alone or in combination have been described in the literature for the prediction of miscarriage. We performed this systematic review and meta-analysis to determine the best combination of biochemical, ultrasound and demographic markers to predict miscarriage in women with viable intrauterine pregnancy. The electronic database search included Medline (1946-June 2017), Embase (1980-June 2017), CINAHL (1981-June 2017) and Cochrane library. Key MESH and Boolean terms were used for the search...
November 4, 2017: European Journal of Obstetrics, Gynecology, and Reproductive Biology
https://www.readbyqxmd.com/read/29201668/efficacy-of-intrauterine-injection-of-granulocyte-colony-stimulating-factor-g-csf-on-treatment-of-unexplained-recurrent-miscarriage-a-pilot-rct-study
#8
Simin Zafardoust, Mohammad Mehdi Akhondi, Mohammad Reza Sadeghi, Afsaneh Mohammadzadeh, Atousa Karimi, Sheyda Jouhari, Soheila Ansaripour
Background: Endometrium undergoes several changes in structure and cellular composition during pregnancy. Granulocyte Colony-stimulating Factor (GCS-F) is an important cytokine with critical role in embryo implantation and pregnancy. The aim of the present study was to evaluate the impact of intrauterine injection of G-CSF in patients who suffer from unexplained recurrent miscarriage (RM). Methods: In the present randomized clinical trial, a total of 68 patients were randomly allocated into two study groups including intrauterine G-CSF (n=23, 300 μg) injection and control group (n=27, no G-CSF injection)...
October 2017: Journal of Reproduction & Infertility
https://www.readbyqxmd.com/read/29201590/investigating-ph-based-evaluation-of-fetal-heart-rate-fhr-recordings
#9
George Georgoulas, Petros Karvelis, Jiří Spilka, Václav Chudáček, Chrysostomos D Stylios, Lenka Lhotská
Cardiotocography (CTG) is a standard tool for the assessment of fetal well-being during pregnancy and delivery. However, its interpretation is associated with high inter- and intra-observer variability. Since its introduction there have been numerous attempts to develop computerized systems assisting the evaluation of the CTG recording. Nevertheless these systems are still hardly used in a delivery ward. Two main approaches to computerized evaluation are encountered in the literature; the first one emulates existing guidelines, while the second one is more of a data-driven approach using signal processing and computational methods...
2017: Health and Technology
https://www.readbyqxmd.com/read/29197294/gestational-ultrasonography-and-dopplerfluxometry-in-capuchin-monkeys-sapajus-apella-zoometric
#10
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/29185994/linear-and-nonlinear-features-of-fetal-heart-rate-on-the-assessment-of-fetal-development-in-the-course-of-pregnancy-and-the-impact-of-fetal-gender
#11
Kyriaki Spyridou, Ioanna Chouvarda, Leontios J Hadjileontiadis, Nic Maglaveras
OBJECTIVE: This work aims to investigate the impact of gestational age and fetal gender on fetal heart rate (FHR) tracings. STUDY DESIGN: Different linear and non-linear 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 age from 28 to 40 weeks, before the onset of labor. 56 of the fetuses were female and 43 were male...
November 29, 2017: Physiological Measurement
https://www.readbyqxmd.com/read/29185054/vacuum-extraction-in-low-birth-weight-%C3%A2-2500%C3%A2-g-neonates
#12
Amir Aviram, Eran Ashwal, Liran Hiersch, Yariv Yogev
PURPOSE: To evaluate the impact of vacuum extraction on birth injuries among low birth weight neonate (2000-2499 g). METHODS: Retrospective cohort study of women with singleton pregnancies > 34 weeks, birth weight of 2000-3500 g, undergoing vacuum extraction, between 2007 and 2014. Outcomes were compared between neonates who weighed 2000-2499 g and 2500-3500 g. RESULTS: Out of 62,102 deliveries, 5064 (8.2%) met the inclusion criteria, of which 269 (5...
November 28, 2017: Archives of Gynecology and Obstetrics
https://www.readbyqxmd.com/read/29183176/incidence-of-maternal-tachycardia-during-the-second-stage-of-labor-a-prospective-observational-cohort-study
#13
Craig V Towers, John Trussell, Robert E Heidel, Lindsey Chernicky, Bobby C Howard
OBJECTIVE: To our knowledge, the largest prospective study to report maternal heart rate (MHR) levels in laboring women is 30 patients, and maternal tachycardia is a risk for potential fetal monitoring confusion. Our objective was to analyze a large population of contiguous laboring patients and assess 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...
November 28, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/29176510/cardiac-function-myocardial-mechano-energetic-efficiency-and-ventricular-arterial-coupling-in-normal-pregnancy
#14
Charlotte Iacobaeus, Ellika Andolf, Malin Thorsell, Katarina Bremme, Eva Östlund, Thomas Kahan
OBJECTIVE: To assess cardiac function, myocardial mechanoenergetic efficiency (MEE), and ventricular-arterial coupling (VAC) longitudinally during normal pregnancy, and to study if there was an association between cardiac structure and function, and fetal growth. METHODS: Cardiac structure and function, MEE, and ventricular-arterial coupling was assessed longitudinally in 52 healthy nulliparous women at 14, 24, and 34 weeks' gestation and 9-month postpartum. RESULTS: Left atrial diameter increased during pregnancy (30...
November 25, 2017: Journal of Hypertension
https://www.readbyqxmd.com/read/29166205/pregnant-women-with-heart-disease-placental-characteristics-and-their-association-with-fetal-adverse-events
#15
Fabio V Lima, Paraskevi Koutrolou-Sotiropoulou, Puja B Parikh, Cecilia Avila, Javed Butler, Kathleen Stergiopoulos
BACKGROUND: Pregnant women with heart disease (HD) have higher rates of adverse fetal outcomes. We describe placental pathologic characteristics and their association with fetal events. METHODS: In pregnant women, known HD were categorized into: (1) cardiomyopathy (CM) or (2) other HD (congenital, coronary, arrhythmia, or valvular). Outcomes were maternal major adverse cardiac events (MACE), fetal adverse clinical events (FACE), a composite of infant death, prematurity, underweight status, intracranial hemorrhage, and respiratory distress...
September 2016: Acute Cardiac Care
https://www.readbyqxmd.com/read/29157452/evolution-of-linear-and-nonlinear-fetal-heart-rate-indices-throughout-pregnancy-in-appropriate-small-for-gestational-age-and-preterm-fetuses-a-cohort-study
#16
Hernâni Gonçalves, Célia Amorim-Costa, Diogo Ayres-de-Campos, João Bernardes
BACKGROUND AND OBJECTIVES: To assess the evolution of linear and nonlinear fetal heart rate (FHR) analysis throughout pregnancy in appropriate (AGA), small for gestational age (SGA) and preterm (PTB) fetuses. METHODS: A prospective cohort study was carried out in 171 singleton pregnancies divided in three groups: AGA (n = 147), SGA (n = 13) fetuses and spontaneous PTB (n = 11). FHR was recorded with an external sensor from the 24th to the 40th week of gestation...
January 2018: Computer Methods and Programs in Biomedicine
https://www.readbyqxmd.com/read/29157037/fetal-nuchal-translucency-in-severe-congenital-heart-defects-experiences-in-northern-finland
#17
Julia Alanen, Markku Leskinen, Mikko Sairanen, Teemu Korpimaki, Heikki Kouru, Mika Gissler, Markku Ryynanen, Jaana Nevalainen
OBJECTIVE: To evaluate the performance of first trimester measurement of fetal nuchal translucency (NT) in detection of severe congenital heart defects (CHDs). METHODS: During the study period of 1.1.2008 - 31.12.2011 NT was measured in 31 144 women as a part of voluntary first trimester screening program for Down's syndrome in Northern Finland. NT was measured by personnel trained on the job by experienced staff. No certification or annual audits are required in Finland...
November 20, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/29145451/stromal-interaction-molecule-1-haploinsufficiency-causes-maladaptive-response-to-pressure-overload
#18
Takayoshi Ohba, Hiroyuki Watanabe, Manabu Murakami, Kenji Iino, Takeshi Adachi, Yoshihiro Baba, Tomohiro Kurosaki, Kyoichi Ono, Hiroshi Ito
Stromal interaction molecule 1 (STIM1), an endo/sarcoplasmic reticulum Ca2+ sensor, has been shown to control a Ca2+-dependent signal that promotes cardiac hypertrophy. However, whether STIM1 has adaptive role that helps to protect against cardiac overload stress remains unknown. We hypothesized that STIM1 deficiency causes a maladaptive response to pressure overload stress. We investigated STIM1 heterozygous KO (STIM1+/-) mice hearts, in which STIM1 protein levels decreased to 27% of wild-type (WT) with no compensatory increase in STIM2...
2017: PloS One
https://www.readbyqxmd.com/read/29141373/-a-concentration-response-observation-of-hydromorphone-combined-with-ropivacaine-in-labor-analgesia
#19
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]
https://www.readbyqxmd.com/read/29141364/-effects-of-combination-therapy-with-aspirin-prednisone-and-elevit-in-patients-with-unexplained-recurrent-early-pregnancy-loss
#20
H Ou, Q Yu
Objective: To investigate the effect of triple therapy with aspirin, prednisone and Elevit in patients with unexplained recurrent early pregnancy loss. Methods: From January 1, 2013 to December 31, 2016, a total of 353 women of childbearing age were enrolled in Peking Union Medical College Hospital, including blood, urine and vaginal swabs. One hundred and fifty-five patients were observed normal results of blood test, urine test and vaginal swabs. According to the treatment regimen, 155 patients were divided into two groups, 89 patients (57...
November 7, 2017: Zhonghua Yi Xue za Zhi [Chinese medical journal]
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