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Tekin Arzu - - 2008
AIM: To determine how fetal pulse oximetry behaves in various cardiotocographic (CTG) tracings and correlates with neonatal outcome. PATIENTS AND METHODS: Pregnant women undergoing active labor with singleton pregnancies of 32-42 weeks were enrolled. CTG recordings were reassuring or nonreassuring (namely variable or persisting late decelerations). Pulse oximetry values during ...
Hilfiker-Kleiner Denise - - 2008
Peri- or postpartum cardiomyopathy (PPCM) is a rare, life-threatening heart disease of unclear origin and is characterized by heart failure of sudden onset between the final weeks of pregnancy and 6 months after delivery. Selective literature search in the databases of the National Center for Biotechnology Information based on the ...
Srinivasan Shardha S Division of Cardiology, Department of Pediatrics, American Family Children's Hospital, University of Wisconsin, Madison 53201, - - 2008
Though fetal arrhythmias account for a small proportion of referrals to a fetal cardiologist, they may be associated with significant morbidity and mortality. The present review outlines the current literature with regard to the diagnosis and, in brief, some management strategies in fetal arrhythmias. Advances in echocardiography have resulted in ...
Wilson James D JD Graduate Institute of Technology, University of Arkansas, Little Rock, AR 72204, USA. - - 2008
Fetal magnetocardiography provides reliable signals of the fetal heart dynamics with high temporal resolution that can be used in a clinical setting. We present a robust Hilbert transform method for extraction of the fetal heart rate. Our method may be applied to signals derived from a single channel or an ...
Lange Silke - - 2009
BACKGROUND AND AIM: Fetal behavioural states have been defined on the basis of eye movements, body movements and heart rate patterns as presented by cardiotocography (CTG). The aim of this work was to determine whether behavioural states can be distinguished on the basis of heart rate features alone using high ...
Schiermeier S - - 2008
OBJECTIVE: To identify sensitivity and specificity of computerised cardiotocography (CTG) analysis for fetal acidosis during delivery. DESIGN: Retrospective observational study. SETTING: Tertiary referral labour ward, Technical University München (TUM) and University Witten/Herdecke (UWH). POPULATION: All deliveries, which had at least one fetal scalp pH measurement and electronically saved CTG traces, ...
Heiskanen Nonna - - 2008
The aim of the present study was to evaluate pregnancy-related changes in autonomic regulatory functions in healthy subjects. We studied cardiovascular autonomic responses to head-up tilt (HUT) in 28 pregnant women during the third trimester of pregnancy and 3 months after parturition. The maternal ECG and non-invasive beat-to-beat blood pressure ...
Kawagoe Yasuyuki - - 2008
The authors show that pulse transit time and blood pressure are reciprocal in fetal goat models. They applied this technique in clinical settings to correlate changes in pulse transit time with fetal heart rate monitoring patterns and acid-base status. In 18 uncomplicated pregnancies, pulse transit time was obtained from electrocardiograms ...
Breur Johannes M P J - - 2008
BACKGROUND: Isolated congenital atrioventricular block (CAVB) diagnosed in utero is associated with a high morbidity and mortality. Prognosis is especially poor when heart rate drops below 55 beats per minute (bpm) and when fetal hydrops develops. We describe the natural history and outcome of 24 infants with isolated CAVB diagnosed ...
Simpson Kathleen Rice - - 2008
Intrauterine resuscitation techniques are often used during labor when the fetal heart rate pattern is nonreassuring. These techniques have not been well studied; common practices are based on classic studies many years old. Models of intrauterine resuscitation using one (or more) technique as a first-line intervention and adding others in ...
Karowicz-BiliƄska Agata - - 2008
BACKGROUND: HLHS (hypoplastic left heart syndrome) is a serious congenital heart defect. In neonates with congenital heart disease HLHS accounts for nearly 25% of neonatal deaths. The etiology of HLHS is unknown. At present we expect to have those cases diagnosed in the second trimester of pregnancy. AIM: The main ...
Buhimschi Catalin S CS Department of Obstetrics, Gynecology and Reproductive Sciences, Yale University School of Medicine, New Haven, Connecticut, - - 2008
We hypothesized that abnormal fetal heart rate monitoring patterns (FHR-MPs) occur more often in pregnancies complicated by intra-amniotic inflammation. Therefore, our objective was to examine the relationships among FHR-MP abnormalities, intra-amniotic inflammation and/or infection, acute histological chorioamnionitis, and early-onset neonatal sepsis (EONS) in pregnancies complicated by preterm birth. Additionally, the ...
Millan Monica S - - 2008
PURPOSE: Completion rate is the most commonly used index of quality in colonoscopy, and yet a complete examination is not necessarily a good examination. The ability to detect and treat adenomas is an important component of endoscopic skill, because many colonoscopies are performed for this express purpose. Adenoma detection rate ...
Porta A - - 2008
We exploit time reversibility analysis, checking the invariance of statistical features of a series after time reversal, to detect temporal asymmetries of short-term heart period variability series. Reversibility indexes were extracted from 22 healthy fetuses between 16th to 40th wk of gestation and from 17 healthy humans (aged 21 to ...
Hata Toshiyuki - - 2008
PURPOSE: To use B-flow imaging with 4-dimensional (4D) sonography and spatiotemporal image correlation (STIC) in the evaluation of normal fetal heart and congenital heart disease during pregnancy. METHOD: Volume data sets of the fetal heart were acquired with automated transverse and longitudinal sweeps of the anterior chest wall. We studied ...
Rault Sebastien - - 2008
OBJECTIVE: To compare the responses of medical staff using the STAN S21 fetal heart monitor versus standard cardiotocography (CTG) to monitor abnormal fetal heart rate in labor. METHOD: Questionnaires were completed by medical staff involved in a randomized controlled trial to compare STAN surveillance with traditional surveillance before the trial ...
Pascoli I - - 2008
Congenital complete heart block (CCHB) is an uncommon disorder with an incidence of about 1/20,000 in liveborn infants. It can occur in the setting of structurally normal heart or with structural disease; it is associated with high mortality and morbidity and requires a high index of suspicion for early diagnosis ...
Satpathy Hemant K - - 2008
Peripartum cardiomyopathy (PPCM) is a rare, idiopathic, life-threatening disease of late pregnancy and early puerperium, occurring in patients with previously healthy hearts. Risk factors include multiparity, age>30 years, African American race, multiple pregnancies, obesity, hypertension, and toxemia. Signs and symptoms of PPCM resemble systolic heart failure, and it is diagnosed ...
Nigam Vivek - - 2008
The fetal phonocardiogram, which is the acoustic recording of mechanical activity of the fetal heart, facilitates the measurement of the instantaneous fetal heart rate, beat-to-beat differences and duration of systolic and diastolic phases. These measures are sensitive indicators of cardiac function, reflecting fetal well-being. This paper provides an algorithm to ...
Fraser Derek - - 2008
OBJECTIVE: To examine the effects of acute maternal hypocapnia and hypercapnia on electronic fetal heart rate (FHR) patterns in late gestation. METHODS: Thirty-five women with healthy singleton pregnancies performed a modified carbon dioxide (CO2) rebreathing procedure between 34 and 38 weeks of pregnancy. Prior to rebreathing, subjects hyperventilated for five ...
Skog Amanda - - 2008
OBJECTIVE: The purpose of this work was to analyze outcome with focus on growth in infants fetally exposed to heart block-associated maternal anti-Ro52/SSA autoantibodies and identify maternal factors other than the autoantibodies increasing the risk of fetal heart block. PATIENTS AND METHODS: Thirty-two pregnancies in 30 anti-Ro52-positive mothers were included. ...
Simpson Kathleen Rice - - 2008
OBJECTIVE: The objective of the study was to evaluate effects of oxytocin-induced hyperstimulation on fetal oxygen saturation and fetal heart rate patterns. STUDY DESIGN: Uterine activity of 56 women was evaluated retrospectively for hyperstimulation lasting 30 minutes using 2 definitions: group 1: 5 or more but less than 6 contractions ...
Gould Kristian S - - 2009
This study examines mental workload and performance in simulated high-speed ship navigation. Two navigation methods were compared based on an electronic chart display and information system (ECDIS) and a conventional system using paper charts. Twenty naval cadets navigated in high-fidelity simulators through a 50 nautical mile course with varying levels ...
Shenhav Simon - - 2008
OBJECTIVE: To explore whether the known decrease in fetal heart rate variability, which follows antenatal betamethasone administration is related to fetal acid-base changes. METHODS: A retrospective study of 42 women with premature delivery following a single course of betamethasone. The study group consisted of 21 women who delivered within 48 ...
Jaeggi Edgar T - - 2008
Complete atrioventricular block (CAVB) is the most common cause of persistent fetal bradycardia. In the presence of a structurally normal heart, it develops primarily in anti-Ro and anti-La positive antibody pregnancies after 20 weeks of gestation. There is a significant risk of perinatal demise, particularly in association with fetal hydrops, ...
Jezewski Janusz - - 2008
Analysis of variability of fetal heart rate (FHR) is very important in prediction of the fetal wellbeing. The beat-to-beat variability is described quantitatively by the indices originated from invasive fetal electrocardiography which provides the FHR signal in a form of time event series. Today, monitoring instrumentation is based on Doppler ...
Rosier-van Dunné Fleur M - - 2008
OBJECTIVE: The objective of the study was to study whether peri- and intraventricular echodensities in the brain of fetuses at risk for preterm birth are associated with changes in fetal heart rate (FHR) parameters. STUDY DESIGN: Twenty preterm fetuses with peri- and intraventricular echodensities detected by transvaginal ultrasonography were matched ...
Friedman Deborah M - - 2008
BACKGROUND: Anti-SSA/Ro-associated third-degree congenital heart block is irreversible, prompting a search for early markers and effective therapy. METHODS AND RESULTS: One hundred twenty-seven pregnant women with anti-SSA/Ro antibodies were enrolled; 95 completed an evaluable course in 98 pregnancies. The protocol included fetal echocardiograms performed weekly from 16 to 26 weeks' ...
Aina-Mumuney Abimbola J - - 2008
OBJECTIVE: The objective of the study was to examine 1 center's experience with fetal blood sampling via the fetal intrahepatic vein (IHV) and cordocentesis. STUDY DESIGN: Consecutive IHV and cordocentesis procedures between July 1987 and February 2006 were compared with respect to success rates, streaming at the sampling site, nonreassuring ...
Jeanty Philippe - - 2008
OBJECTIVE: The goal of this presentation is to review some of the common and rare fetal heart abnormalities and to provide an easy approach to these findings with the schematic drawings. METHODS: Over the past 10 years, we collected cases in which the common views of the heart were abnormal ...
Prefumo Federico - - 2008
OBJECTIVE: To describe clinical findings in a case of premature ductal constriction associated with maternal use of nimesulide, a cyclo-oxygenase type-2 inhibitor. METHODS: Case report. RESULTS: A mother self-administered nimesulide at 39 weeks of gestation due to lower back pain. Less than 24 h later premature ductal constriction was diagnosed ...
Schneider Uwe - - 2008
AIM: To describe developmental aspects of the sympatho-vagal heart rate regulation in the human fetus by applying numerics to visual descriptions of fetal heart rate patterns throughout the third trimester of pregnancy. The focus is to determine potential benefits of this alternative means of assessing the maturation of the fetal ...
Di Lieto Andrea - - 2008
The objective of this work was to review the activity of TOCOMAT, a system for antepartum cardiotocographic telemonitoring. Nine peripheral units recorded the traces, transmitted them via modem to the University operation center, where the computerized analysis was performed, and received the medical report within a few minutes, via fax ...
Scerbo Mark W - - 2008
The present study represents the first in a series aimed at examining how individuals monitor maternal-fetal heart rate signals over an extended period of time. Seventy-two undergraduate students monitored simulated maternal-fetal heart rate signals for late decelerations of either high or low amplitude for 48 minutes. The results showed that ...
Van Laar J O E H - - 2008
BACKGROUND: Cardiotocography has a poor diagnostic value in detecting fetal acidosis. Spectral analysis of fetal heart rate variability can be used to monitor the fetal autonomic nervous system. OBJECTIVE: To determine the value of spectral analysis for fetal surveillance. METHODS: A systematic search was performed in the electronic databases CENTRAL ...
Logier R R Centre d'Innovation Technologique CIC-IT 807, CHRU de Lille, 2 Avenue Oscar Lambret, 59037 Cedex, - - 2008
Routine monitoring of Fetal Heart Rate (FHR) during labor enables diagnosis of fetal distress and appropriate management by the medical staff. Diagnosis of fetal distress relies mainly on a subjective visual assessment of FHR variations using baseline level, oscillations magnitude, decelerations and their time-relation to the parturient uterine contractions. Strong ...
Kotas Marian M Institute of Electronics, Silesian University of Technology, Akademicka St. 16, 44-100 Gliwice, Poland. - - 2008
The significance of the most important operations performed by the noninvasive systems for fetal heart rate determination is investigated. The method of template subtraction for maternal ECG suppression is compared to the method based on independent component analysis. The QRS detector based on the classical slope-responsive preprocessing competes with the ...
Taralunga Dragos D DD Politehnica University of Bucharest, Electronics, Telecommunications, and Information Technology Faculty, Iuliu Maniu 1-3, RO-061072 Bucharest, Romania. - - 2008
Abdominal signals (ADS) recorded from pregnant women represent an important tool for monitoring the fetal heart rate (FHR) variability and the well-being state of the fetus, mainly because it has the advantage of being noninvasive. Thus, no risk is given during recording either for the mother or for the fetus, ...
Kosa E E Pázmány P. Catholic University, Budapest, - - 2008
Phonocardiography (PCG) makes possible the examination of some fetal cardiac anomalies which otherwise usually remain undetected during pregnancy. The application of PCG in a telemonitoring system enhances its diagnostic capabilities, allowing long-term measurements even at home. The paper summarizes the intensive fetal monitoring campaign carried out in Hungary during the ...
Karvounis E C EC Department of Material Science and Engineering, University of Ioannina, GR 45110, Greece. - - 2008
A novel three-stage methodology for the detection of fetal heart rate (fHR) from multivariate abdominal electrocardiogram (ECG) recordings is introduced. In the first stage, the maternal R-peaks and fiducial points (maternal QRS onset and offset) are detected. Maternal fiducial points are used to eliminate the maternal QRS complexes from the ...
Pollock-Barziv S M - - 2008
Following fetal diagnosis of a profound heart defect, transplantation (HTx) is an alternative to pregnancy termination or neonatal surgical palliation. Retrospective review of the cardiac and transplant databases of fetal listings for HTx between 1990 and July 2006 was undertaken to describe outcomes after listing. We identified 26 fetal listings ...
Matsubara Shigeki - - 2008
BACKGROUND: The efficacy of maternal administration of ritodrine in cases of congenital atrioventricular block (CAVB), especially with fetal heart failure, is not yet determined. CASE: At 21 2/7 weeks of gestation, isolated CAVB with a ventricular/atrial rate of 55-70/130-140 bpm was found in a fetus from a 30-year-old Japanese nulliparous ...
East Christine E - - 2007
Fetal monitoring during labor aims to identify fetal problems which, if uncorrected, may result in morbidity or death. A nonreassuring or abnormal fetal heart rate trace by cardiotocography (CTG) does not necessarily equate with fetal hypoxia and/or acidosis. However, in the absence of more objective data, the use of CTG ...
Espinoza Jimmy - - 2007
OBJECTIVE: The multiplanar display is a modality that allows the simultaneous visualization of 3 orthogonal planes from volume data sets obtained with 3- and 4-dimensional ultrasonography. Simultaneous display of standard views used in fetal echocardiography and their orthogonal planes may provide novel ultrasonographic views for examination of the fetal heart ...
Massoud M - - 2007
BACKGROUND: The STAN methodology has been shown to reduce both operative delivery for fetal distress and the cord artery metabolic acidosis rate. OBJECTIVE: The objective of this study was to monitor delivery modes and perinatal outcomes following the introduction of the STAN methodology and the evolution of its use at ...
DiPietro Janet A JA Department of Population, Family and Reproductive Health, Johns Hopkins Bloomberg School of Public Health, 615 N. Wolfe St., E4531, Baltimore, MD 21205, USA. - - 2007
Stability in cardiac indicators before birth and their utility in predicting variation in postnatal development were examined. Fetal heart rate and variability were measured longitudinally from 20 through 38 weeks gestation (n = 137) and again at age 2 (n = 79). Significant within-individual stability during the prenatal period and ...
Chugh Reema - - 2007
Medical advancements have made it possible for more women with congenital heart defects (CHDs) to carry successful pregnancies. Most CHD surgeries or interventions are palliative with persistent residua and sequelae exacerbated by the physiologic stresses of pregnancy. Preconception assessment, a tailored multidisciplinary approach during pregnancy, and a planned, elective delivery ...
Hameed Afshan B - - 2007
BACKGROUND: Pulmonary stenosis (PS) accounts for 10% to 12% of congenital heart disease in adults, and the probability of survival to child bearing age is high. The impact of PS on pregnancy has not been extensively studied in the recent era. METHODS: We evaluate the effect of isolated PS on ...
Westgate Jenny A - - 2007
One of the most distinctive features of fetal heart rate recordings in labor is the deceleration. In clinical practice, there has been much confusion about the types of decelerations and their significance. In the present review, we examined uteroplacental perfusion in labor, describe the pathophysiologic condition of decelerations, and explain ...
Larma Joel D - - 2007
OBJECTIVE: The purpose of this study was to determine whether electronic fetal monitoring can identify fetuses with metabolic acidosis and hypoxic-ischemic encephalopathy. STUDY DESIGN: The cases were 107 nonanomalous chromosomally normal fetuses with an umbilical arterial pH < 7.0 and base excess < or = 12 mmol/L. Controls were the ...
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