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Fetal heart rate

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https://www.readbyqxmd.com/read/28634788/consistent-reconstruction-of-4d-fetal-heart-ultrasound-images-to-cope-with-fetal-motion
#1
Christine Tanner, Barbara Flach, Céline Eggenberger, Oliver Mattausch, Michael Bajka, Orcun Goksel
PURPOSE: 4D ultrasound imaging of the fetal heart relies on reconstructions from B-mode images. In the presence of fetal motion, current approaches suffer from artifacts, which are unrecoverable for single sweeps. METHODS: We propose to use many sweeps and exploit the resulting redundancy to automatically recover from motion by reconstructing a 4D image which is consistent in phase, space, and time. An interactive visualization framework to view animated ultrasound slices from 4D reconstructions on arbitrary planes was developed using a magnetically tracked mock probe...
June 20, 2017: International Journal of Computer Assisted Radiology and Surgery
https://www.readbyqxmd.com/read/28631514/pharmacokinetics-and-dosing-requirements-of-digoxin-in-pregnant-women-treated-for-fetal-supraventricular-tachycardia
#2
Ana Martin-Suarez, Jose German Sanchez-Hernandez, Fabiola Medina-Barajas, Jonas Samuel Perez Blanco, Jose M Lanao, Luisa Garcia-Cuenllas Alvarez, M Victoria Calvo
BACKGROUND: The objective of this study was to characterize the pharmacokinetics (PK) of digoxin in pregnant women and its potential implications for drug dosing. METHODS: Serum digoxin concentrations (SDCs) obtained in pregnant women treated for fetal supraventricular tachycardia (SVT) was retrospectively collected. PK analysis was comparatively performed using a two-stage approach (PKS™) and a Population PK approach (NONMEM™). As clinical outcome the fetal heart rate was recorded...
June 20, 2017: Expert Review of Clinical Pharmacology
https://www.readbyqxmd.com/read/28629247/obstetric-practice-patterns-in-pregnancies-complicated-by-fetal-trisomy-13-or-18
#3
Sarah K Dotters-Katz, Marcela C Smid, Cora Mcelwain, Jeffrey A Kuller, Jay Schulkin
PURPOSE: Describe practice patterns among obstetrician/gynecologists (OB/GYNs) when caring for women with pregnancy complicated by fetal trisomy 13(T13) or 18(T18), and compare these between maternal-fetal-medicine (MFM) and non-MFM providers. MATERIALS AND METHODS: We conducted an electronic survey using the American College of Obstetricians and Gynecologists database. Using simple statistics, we describe demographics and practice patterns among respondents, and compare those of MFM practitioners with non-MFM providers...
June 19, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/28629246/clinical-significance-of-primary-symptoms-in-women-with-placental-abruption
#4
Youwen Mei, Yonghong Lina
BACKGROUND: To evaluate the clinical significance of primary symptoms in women with placental abruption. METHODS: A retrospective study of 273 cases of placental abruption was performed. The subjects were classified into 2 groups according to primary symptoms: 210 cases of vaginal bleeding group and 63 cases of abdominal pain group. The clinical features, maternal and neonatal outcomes were compared between two groups. RESULTS: The incidence of preeclampsia and preterm birth in vaginal bleeding group was significantly lower than abdominal pain group, while the incidence of premature rupture of membrane (PROM) in the former group was higher than that in the latter group...
June 19, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/28625035/programming-of-infant-neurodevelopment-by-maternal-obesity-potential-role-of-maternal-inflammation-and-insulin-resistance
#5
Mira Dewi, Susan E Carlson, Kathleen M Gustafson, Debra K Sullivan, Jo A Wick, Holly R Hull
BACKGROUND AND OBJECTIVES: Recent studies show that maternal obesity is associated with impaired offspring neurodevelopmental outcomes. The mechanism underlying the association is unclear. However, there is evidence to suggest a role for intra-uterine exposure to inflammation and insulin resistance (IR). We aimed to determine if maternal IR and inflammation were associated to fetal neurodevelopment as indicated by fetal heart rate variability (HRV), an index of fetal cardiac autonomic nervous system development...
June 2017: Asia Pacific Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/28619691/a-mouse-model-of-antepartum-stillbirth
#6
Anum Rahman, Lindsay S Cahill, Yu-Qing Zhou, Johnathan Hoggarth, Monique Y Rennie, Mike Seed, Christopher K Macgowan, John C Kingdom, S Lee Adamson, John G Sled
BACKGROUND: Many stillbirths of normally-formed fetuses in the third trimester could be prevented via delivery if reliable means to anticipate this outcome existed. However, since the etiology of these stillbirths is often unexplained and, although the underlying mechanism is presumed to be hypoxia from "placental insufficiency", the placentas often appear normal on histopathologic examination. Gestational age is a risk factor for antepartum stillbirth, with a rapid rise in stillbirth rates after 40 weeks gestation...
June 12, 2017: American Journal of Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28618098/pre-labor-fetal-cardiac-function-and-its-relationship-with-intrapartum-fetal-compromise-and-neonatal-status-at-term
#7
Amal A Alsolai, Larissa N Bligh, Ristan M Greer, Sailesh Kumar
OBJECTIVES: To prospectively investigate the relationship between fetal cardiac function and Doppler parameters with intrapartum fetal compromise (IFC) in term appropriately grown fetuses prior to labour. Secondary outcomes were to correlate prenatal cardiac function with neonatal acid base status, intrapartum fetal heart rate abnormalities adverse neonatal outcomes. METHODS: This was a blinded, prospective, observational, cohort study, at the Mater Mother's Hospital, Brisbane, Australia...
June 15, 2017: Ultrasound in Obstetrics & Gynecology
https://www.readbyqxmd.com/read/28616410/assessing-effects-of-bl67-points-stimulation-on-fetal-heart-rate-parameters-and-fetal-movements-during-nonstress-test
#8
Masume Pirhadi, Mahboube Valiani
CONTEXT: One of the main goals of antenatal testing is to identify fetuses at the risk of neurologic injury or death so that these adverse outcomes can be prevented. We want to assess the effects of BL67 points' stimulation on fetal heart rate parameters and fetal movements during nonstress test (NST). We did a quasi-experimental design in Shahid Beheshti Hospital in Isfahan in 2011. AIMS: This study aims to assessment of the effects of BL67 points' stimulation on fetal heart rate parameters and fetal movements...
2017: Journal of Education and Health Promotion
https://www.readbyqxmd.com/read/28607782/placental-chorangiosis-increased-risk-for-cesarean-section
#9
Shariska S Petersen, Raminder Khangura, Dmitry Davydov, Ziying Zhang, Roopina Sangha
We describe a patient with Class C diabetes who presented for nonstress testing at 36 weeks and 4 days of gestation with nonreassuring fetal heart tones (NRFHT) and oligohydramnios. Upon delivery, thrombosis of the umbilical cord was grossly noted. Pathological analysis of the placenta revealed chorangiosis, vascular congestion, and 40% occlusion of the umbilical vein. Chorangiosis is a vascular change of the placenta that involves the terminal chorionic villi. It has been proposed to result from longstanding, low-grade hypoxia in the placental tissue and has been associated with such conditions such as diabetes, intrauterine growth restriction (IUGR), and hypertensive conditions in pregnancy...
2017: Case Reports in Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28602206/strain-rate-in-children-and-young-piglets-mirrors-changes-in-contractility-and-demonstrates-a-force-frequency-relationship
#10
Silvia V Alvarez, Etienne Fortin-Pellerin, Mohammed Alhabdan, Jesus S Lomelin, Michal Kantoch, Joseph Atallah, Lisa K Hornberger, James Y Coe, Po-Yin Cheung, Edythe B Tham, Kandice Mah, Lily Lin, Lindsay Mills, Nee S Khoo
BACKGROUND: In adult humans and pig models, strain rate (SR) correlates strongly with invasive measures of contractility but does not demonstrate a force-frequency relationship, which is a fundamental behavior of myocardial contraction. Given the considerable maturational changes of the myocardium from fetal stages to adulthood, extrapolation of adult findings to the young heart may not be appropriate. We sought to evaluate the SR response of the immature heart to increased heart rate (HR) and inotropic stimulation...
June 8, 2017: Journal of the American Society of Echocardiography
https://www.readbyqxmd.com/read/28602043/efficacy-of-first-trimester-ultrasound-parameters-for-prediction-of-early-spontaneous-abortion
#11
Mamta Rath Datta, Ankush Raut
OBJECTIVE: To assess first-trimester ultrasound measurements for the prediction of early spontaneous abortion. METHODS: In a prospective observational study in Jamshedpur, India, women with a singleton pregnancy of 42-76 days were enrolled between November 2014 and April 2016. Inclusion criteria were spontaneous conception, embryonic cardiac activity, and regular menstrual cycle. Fetal crown-to-rump length (CRL), gestational sac diameter (GSD), yolk sac diameter (YSD), and fetal heart rate (FHR) were measured by transvaginal ultrasonography...
June 11, 2017: International Journal of Gynaecology and Obstetrics
https://www.readbyqxmd.com/read/28599825/left-ventricular-rotational-and-twist-mechanics-in%C3%A2-the-human-fetal-heart
#12
Ling Li, Mary Craft, Hao H Hsu, Ming Zhang, Berthold Klas, David A Danford, Shelby Kutty
BACKGROUND: The authors investigated left ventricular (LV) rotational indices, twist, and torsion in a large cohort of fetuses using two-dimensional speckle-tracking echocardiography. METHODS: Pregnant women (N = 102) were prospectively recruited for fetal two-dimensional speckle-tracking echocardiography. Because of variable fetal position, ventricular orientation was established using the location of the liver and LV position in relation to the right ventricle...
June 6, 2017: Journal of the American Society of Echocardiography
https://www.readbyqxmd.com/read/28599068/methods-of-term-labour-induction-for-women-with-a-previous-caesarean-section
#13
REVIEW
Helen M West, Marta Jozwiak, Jodie M Dodd
BACKGROUND: Women with a prior caesarean delivery have an increased risk of uterine rupture and for women subsequently requiring induction of labour it is unclear which method is preferable to avoid adverse outcomes. This is an update of a review that was published in 2013. OBJECTIVES: To assess the benefits and harms associated with different methods used to induce labour in women who have had a previous caesarean birth. SEARCH METHODS: We searched Cochrane Pregnancy and Childbirth's Trials Register (31 August 2016) and reference lists of retrieved studies...
June 9, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28595604/functionality-and-acceptability-of-a-wireless-fetal-heart-rate-monitoring-device-in-term-pregnant-women-in-rural-southwestern-uganda
#14
Godfrey R Mugyenyi, Esther C Atukunda, Joseph Ngonzi, Adeline Boatin, Blair J Wylie, Jessica E Haberer
BACKGROUND: Over 3 million stillbirths occur annually in sub Saharan Africa; most occur intrapartum and are largely preventable. The standard of care for fetal heart rate (FHR) assessment in most sub-Saharan African settings is a Pinard Stethoscope, limiting observation to one person, at one point in time. We aimed to test the functionality and acceptability of a wireless FHR monitor that could allow for expanded monitoring capacity in rural Southwestern Uganda. METHODS: In a mixed method prospective study, we enrolled 1) non-laboring healthy term pregnant women to wear the device for 30 min and 2) non-study clinicians to observe its use...
June 8, 2017: BMC Pregnancy and Childbirth
https://www.readbyqxmd.com/read/28591756/the-fetal-reserve-index-re-engineering-the-interpretation-and-responses-to-fetal-heart-rate-patterns
#15
Robert D Eden, Mark I Evans, Shara M Evans, Barry S Schifrin
OBJECTIVE: Electronic fetal monitoring (EFM) correlates poorly with neonatal outcome. We present a new metric: the "Fetal Reserve Index" (FRI), formally incorporating EFM with maternal, obstetrical, fetal risk factors, and excessive uterine activity for assessment of risk for cerebral palsy (CP). METHODS: We performed a retrospective, case-control series of 50 term CP cases with apparent intrapartum neurological injury and 200 controls. All were deemed neurologically normal on admission...
June 8, 2017: Fetal Diagnosis and Therapy
https://www.readbyqxmd.com/read/28578168/neonatal-outcomes-in-fetuses-with-cardiac-anomalies-and-the-impact-of-delivery-route
#16
Laura I Parikh, Katherine L Grantz, Sara N Iqbal, Chun-Chih Huang, Helain J Landy, Melissa H Fries, Uma M Reddy
BACKGROUND: Congenital fetal cardiac anomalies compromise the most common group of fetal structural anomalies. Several previous reports analyzed all types of fetal cardiac anomalies together without individualized neonatal morbidity outcomes based on cardiac defect. Mode of delivery in cases of fetal cardiac anomalies varies greatly as optimal mode of delivery in these complex cases is unknown. OBJECTIVE: We sought to determine rates of neonatal outcomes for fetal cardiac anomalies and examine the role of attempted route of delivery on neonatal morbidity...
May 31, 2017: American Journal of Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28574808/fetal-cardiac-us-techniques-and-normal-anatomy-correlated-with-adult-ct-and-mr-imaging
#17
Neel Patel, Evan Narasimhan, Anne Kennedy
Congenital heart disease (CHD) is an important cause of childhood mortality. Despite the widespread use of ultrasonography (US) as a screening tool, the prenatal detection rate is suboptimal. Improvement of the initial screening examination, which is performed in low-risk populations and often interpreted by community radiologists, targets a point in the screening process that is likely to have the largest population effect. If the goal of community-based screenings is to detect cases that may be abnormal and refer those to specialized centers for complete assessment, it is logical to use a checklist to confirm normal anatomy...
June 2, 2017: Radiographics: a Review Publication of the Radiological Society of North America, Inc
https://www.readbyqxmd.com/read/28574580/echographic-features-and-perinatal-outcomes-in-fetuses-with-congenital-absence-of-ductus-venosus
#18
Raquel Garcia-Delgado, Raquel Garcia-Rodriguez, Azahar Romero Requejo, Marta Armas Roca, Luciana Obreros Zegarra, Margarita Medina Castellano, Jose A Garcia Hernandez
The purpose of this study was to describe the echographic features and perinatal outcomes of fetuses with absence of ductus venosus (ADV) MATERIAL AND METHODS: Retrospective review of 10 cases with ADV diagnosed by prenatal ultrasonography between January 2014 and February 2016 at a single referral center. Prenatal findings, umbilical shunting type, perinatal outcomes, and autopsy reports were reviewed RESULTS: A total of 11 491 fetuses underwent a first and second trimester screening during the study period...
June 2, 2017: Acta Obstetricia et Gynecologica Scandinavica
https://www.readbyqxmd.com/read/28569558/persistent-left-superior-vena-cava-in-fetuses-an-autopsy-series
#19
Deepa Ramakrishnan, Shanthi Chidambarathanu, Lata Murli, John Micheal, Sujatha Jagadeesh, Indrani Suresh, Suresh Seshadri
OBJECTIVE: To review fetal autopsy reports with persistent left superior vena cava (PLSVC) and identify its associations. MATERIALS AND METHODS: Autopsy reports of all fetuses diagnosed with PLSVC in our center from January 2011 to December 2015 were reviewed. Fetuses less than 15 weeks gestational age along with autolyzed and damaged hearts were excluded from the study. The study group was compared with controls during this period. RESULTS: Prenatal ultrasound detection rate of PLSVC was 13...
June 1, 2017: Fetal and Pediatric Pathology
https://www.readbyqxmd.com/read/28567128/noninvasive-fetal-electrocardiography-part-i-pan-tompkins-algorithm-adaptation-to-fetal-r-peak-identification
#20
Angela Agostinelli, Ilaria Marcantoni, Elisa Moretti, Agnese Sbrollini, Sandro Fioretti, Francesco Di Nardo, Laura Burattini
BACKGROUND: Indirect fetal electrocardiography is preferable to direct fetal electrocardiography because of being noninvasive and is applicable also during the end of pregnancy, besides labor. Still, the former is strongly affected by noise so that even R-peak detection (which is essential for fetal heart-rate evaluations and subsequent processing procedures) is challenging. Some fetal studies have applied the Pan-Tompkins' algorithm that, however, was originally designed for adult applications...
2017: Open Biomedical Engineering Journal
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