Search Results
Results 351 - 400 of 1290
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Minassian Vatche A - - 2002
BACKGROUND:Pregnancies complicated by congenital heart block usually have a poor prognosis when there is severe fetal bradycardia. CASE:We present a pregnancy with fetal heart rate of 40 beats per minute. She previously delivered a child with third-degree heart block by cesarean at 28 weeks. This pregnancy was complicated by a ...
Stinstra J - - 2002
OBJECTIVE: A database with reference values of the durations of the various waveforms in a magnetocardiogram of fetuses in uncomplicated pregnancies is assessed. This database will be of help to discriminate between pathologic and healthy fetuses. A fetal magnetocardiogram is a recording of the magnetic field in a location near ...
Malik Neeru - - 2002
The present prospective study included 173 randomly selected primigravidae at admission in early labour. Of these, 88 cases were of low risk and 85 cases were of high risk, on the basis of antenatal risk factors. All the cases were subjected to a twenty minutes recording of the foetal heart ...
Skeels M - - 2002
At the University of California Davis Medical Center, a screening fetal ultrasound examination (level I or II) incorporates a comprehensive segmental evaluation of the fetal heart. This study evaluated the reliability of the fetal ultrasound exam in the detection of abnormal heart anatomy. Our retrospective study reviewed results of 614 ...
Matsushita H - - 2002
Congenital heart block (CHB) is rather rare, and a poorer prognosis has been documented in fetuses with a ventricular rate <55 beats per minutes (bpm), in which therapeutic interventions during pregnancy have been warranted. We present a case of CHB associated with maternal anti-SSA/Ro antibody, diagnosed at 28 weeks' gestation. ...
Salamalekis E - - 2002
OBJECTIVE: To develop a computerised system that will assist the early diagnosis of fetal hypoxia and to investigate the relationship between the fetal heart rate variability and the fetal pulse oximetry recordings. DESIGN: Retrospective off-line analysis of cardiotocogram and FSpO2 recordings. SETTING: The Maternity Unit of the 2nd Department of ...
Freeman Roger K - - 2002
Fetal heart rate (FHR) monitoring was introduced over 3 decades ago into clinical use and patient management. It continues to be the predominant method for intrapartum fetal surveillance despite questions about its efficacy and outcomes associated with its use. Currently, there appears to be a consensus regarding the reassuring value ...
DiPietro Janet A - - 2002
The authors investigated the association between maternal psychological and fetal neurobehavioral functioning. Data were provided by 52 maternal-fetal pairs at 24, 30, and 36 weeks gestation. The relations between maternal measures and fetal heart rate, variability, and motor activity were statistically modeled. Fetuses of women who were more affectively intense, ...
Lai Kuei-Chiang - - 2002
In this paper, we present a two-stage successive cancellation (SC) algorithm that sequentially separates fetal and maternal heartbeats from an intrauterine electrocardiogram (IuECG) signal containing both fetal and maternal QRS complexes. The ECG signal is modeled as a series of fetal, maternal, and noise events. Peak detection is first employed ...
Batchvarov Velislav - - 2002
In clinical practice, an imprecision introduced by ad hoc selected heart rate correction formula of the QT interval is unlikely to lead to erroneous conclusions if all borderline cases are carefully considered. On the contrary, in clinical investigations (e.g., studies of drug effects) the over- or undercorrection of QTc may ...
Michals-Matalon Kimberlee - - 2002
OBJECTIVE: The purpose of this study was to determine whether nutritional components other than high maternal blood phenylalanine levels (> or = 10 mg/dL) are associated with congenital heart defects in the offspring of women with hyperphenylalaninemia. STUDY DESIGN: Of the 414 subjects who had live births, 249 women (60.1%) ...
Iwobi N N - - 2002
The effect of pregnancy on the heart rate, respiratory rate, QRS axis and QRS complex duration of the ECG was investigated in 41 pregnant compared to 39 non pregnant age and height matched Nigerian subjects. Results obtained show that pregnancy had no significant effect (p > 0.05) on heart rate, ...
Lechmanová M - - 2002
We have studied changes of the electrical heart field resulting from the changed spatial position of the heart during the last period of pregnancy in healthy women. This was suggested to be a good model of electrocardiographic changes that could be found on patients suffering from obesity. The measured parameters ...
Arbeille Philippe - - 2002
OBJECTIVE: Malaria during pregnancy induces deterioration of placental function, resulting in transient fetal hypoxia. Our objective was to evaluate the sensitivity and specificity of fetal Doppler indices for prediction of abnormal fetal heart rate at delivery and to compare the amplitude of the fetal vascular response to malaria in 2 ...
Moore Keely - - 2002
Virtual reality (VR) offers a great new perspective on what it can offer an individual. These new approaches can give an individual the immersion and cognitive guidance that they need to help overcome his or her disorder. VR differs from the traditional displays in computer graphics as these various displays ...
Voxman Elizabeth G - - 2002
OBJECTIVE: To determine whether an antepartum amniotic fluid index (AFI) of 5.0 cm or less is a predictor of adverse perinatal outcome. STUDY DESIGN: The antepartum testing records of 779 women seen over a 12-month period were reviewed. Data, including the reasons for testing, the testing results, and pregnancy outcome ...
Wedegärtner U - - 2002
PURPOSE: To investigate the potential of fMRI to measure changes in fetal tissue oxygenation during acute maternal hypoxia in fetal lambs. MATERIAL AND METHODS: Two ewes carrying singleton fetuses (gestational age 125 and 131 days) underwent MR imaging under inhalation anesthesia. BOLD imaging of the fetal brain, liver and myocardium ...
Neri Isabella - - 2002
OBJECTIVES: We assessed fetal heart variability and activity using a computerized non-stress test (NST) during acupuncture plus moxibustion on the BL67 point. For comparison, the same changes were assessed during placebo acupuncture (minimal acupuncture) in the same subjects. METHODS: Twelve pregnant women in the 33rd week of gestation, carrying singletons ...
Sherman Dan J - - 2002
OBJECTIVE: To find patterns characteristic of maternal heart rates recorded by an electronic fetal monitor and compare them with concomitant fetal heart rate (FHR) patterns. METHODS: Maternal heart rates and FHRs during active labor and delivery were simultaneously recorded in 26 parturients with singleton pregnancies in vertex presentation. The FHRs ...
Sjöström Karin - - 2002
AIM: To determine whether maternal state and trait anxiety levels affect fetal movements or fetal heart rate (FHR) in the third trimester. SUBJECTS: Forty-one healthy pregnant nulliparous women not on medication and with a singleton pregnancy. STUDY DESIGN: Maternal anxiety was assessed using the Spielberger State- Trait Anxiety Inventory (Form ...
Baumert M - - 2002
Pregnancy induces important changes in the autonomic control. Measures of heart rate (HR) variability and systolic blood pressure (SP) variability are sensitive to those changes. The interactions between HR and SP are complex and strongly non-linear. Therefore they cannot be completely described by linear analysis techniques. A study of joint ...
Solt Ido - - 2002
BACKGROUND: Visual interpretation of fetal heart rare monitoring is subject to intra- and inter-observer variability. OBJECTIVE: To examine the effect of intrapartum administration of meperidine and promethazine on fetal heart activity measured objectively by a computerized system. METHODS: Fourteen healthy women with normal pregnancies at term were studied during the ...
Bouchard Sarah - - 2002
BACKGROUND: The EXIT (ex utero intrapartum treatment) procedure, although initially designed for reversal of tracheal occlusion in fetuses with congenital diaphragmatic hernias (CDH), has been adapted to treat a variety of fetal conditions. METHODS: A retrospective chart review of all consecutive EXIT procedures since 1996 was conducted. RESULTS: Thirty-one women ...
Low James A - - 2002
OBJECTIVE: This study was undertaken to examine the contribution of electronic fetal heart rate monitoring in the prediction and prevention of intrapartum fetal asphyxia in the preterm pregnancy. STUDY DESIGN: The outcome of 40 pregnancies with biochemically confirmed intrapartum fetal asphyxia (ie, an umbilical artery base deficit >12 mmol/L) was ...
Ibrahimy Muhammad I - - 2002
A fetal monitor has been developed for the measurement of the fetal and maternal heart rates from maternal abdominal electrocardiogram during pregnancy and labor for ambulatory monitoring. Developed algorithm of the fetal monitor is based on digital filtering, adaptive thresholding. statistical properties in the time domain and differencing of local ...
Vitoratos N - - 2002
OBJECTIVE: To determine the predictive value of intrapartum fetal oxygen saturation (SO2) for prediction of an umbilical artery pH less than 7.15 at birth in labors complicated by abnormal fetal heart rate traces. STUDY DESIGN: Eighty-five primigravidas in spontaneous labor complicated by abnormal fetal heart rate traces underwent fetal SO2 ...
Lecanuet Jean-Pierre - - 2002
Pregnant women, carrying end of gestation fetuses (38-41 weeks gestational age) were either gently rocked in an anterior posterior plane in a rocking chair or gently swayed laterally in a garden glider. Stimulation lasted for either 5 or 26 s (R5 & R26, SW5 & SW26). Fetal heart rate (HR) ...
Kean L H - - 2001
OBJECTIVE: To compare behaviour in term fetuses exposed to anticonvulsants with unexposed controls. DESIGN: An observational study. SETTING: Pregnancy Assessment Centre, University Hospital, Nottingham, UK. SAMPLE: Seventeen fetuses whose mothers were taking anticonvulsants and 94 fetuses whose mothers were on no medication between 28 and 41 weeks. METHODS: Behaviour (fetal ...
Immer-Bansi A - - 2001
We present a case of a probably unnecessary Caesarean section due to misinterpretation of the cardiotocography (CTG) trace during general anaesthesia. A 27-yr-old patient in her 30th week of an uneventful, normal first pregnancy presented with a deep venous thrombosis in the pelvic region. She was to undergo an emergency ...
Capogna G - - 2001
Fetal heart rate (FHR) changes occasionally follow the use of labor epidurals. Most studies of the phenomenon have focused on specific techniques, but similar timing and appearance suggest a common cause. Induction of analgesia may transiently alter the balance between factors encouraging and inhibiting uterine contractions with subsequent changes of ...
Hadar A - - 2001
OBJECTIVE: The purpose of this study was to evaluate perinatal outcomes of infants who had pathologic fetal heart rate tracings during the first stage of labor, in comparison with pregnancies with normal tracings. STUDY DESIGN: The perinatal outcomes of 301 infants born at 37 to 42 weeks of gestation with ...
Ayres A W - - 2001
OBJECTIVE: To identify the fetal heart rate patterns that occurred in a 2-h period of time preceding uterine rupture. METHODS: The fetal monitor strips and the medical records of patients with a confirmed diagnosis of uterine rupture were reviewed. These patients delivered at the University of Michigan Hospital from January ...
Nuyens D - - 2001
Deletion of amino-acid residues 1505-1507 (KPQ) in the cardiac SCN5A Na(+) channel causes autosomal dominant prolongation of the electrocardiographic QT interval (long-QT syndrome type 3 or LQT3). Excessive prolongation of the action potential at low heart rates predisposes individuals with LQT3 to fatal arrhythmias, typically at rest or during sleep. ...
Strachan B K - - 2001
OBJECTIVE: To identify the individual features of the computerised analysis of the cardiotocograph that relate to arterial pH and base deficit at delivery. DESIGN: Retrospective observational study. SETTING: Teaching hospital labour wards. PARTICIPANTS: 679 women requiring continuous intrapartum fetal monitoring. METHODS: Fetal heart and uterine contraction data were obtained using ...
Roberts D - - 2001
OBJECTIVE: To assess computerised fetal heart rate recordings between 24 and 28 weeks of gestation for gestation related differences. DESIGN: Prospective, cross sectional observational study. SETTING: Liverpool Women's Hospital. POPULATION: 112 women: 28 at 27 weeks, 30 at 26 weeks, 27 at 25 weeks and 27 at 24 weeks of ...
Park M I - - 2001
OBJECTIVE: The aim of this study is to define the reference ranges for fetal heart rate (FHR) parameters according to gestational age, by determining the relationship between the FHR and gestational age using a computerized FHR analysis system. METHODS: Using our own software developed by Hanyang University Hospital in Korea, ...
Bukharovich I F - - 2001
Peripartum cardiomyopathy, an uncommon cause of chronic heart failure, may present during the third trimester of pregnancy, but most often develops within 2 months postpartum. The etiologies of heart failure during pregnancy and postpartum are numerous, however. The authors describe the case of a 25-year-old woman who developed severe, symptomatic ...
Zachara B A - - 2001
BACKGROUND: Among the tissues of humans the highest level of selenium (Se) is found in the kidney and the lowest in the muscle. The Se level in tissues is age-dependent. AIM: To measure the Se level in kidney, liver and heart of newborns and infants who were born in different ...
Gabert H A - - 2001
OBJECTIVE: Our purpose was to compare fetal heart rate reaction to external physical stimulation with the non-stress test (NST). METHODS: This was a prospective study evaluating documentation of fetal heart accelerations by two methods. The standard NST was performed prior to the ultrasound evaluation. The NST results were not available ...
Kirchhof P - - 2001
BACKGROUND: Fetal tachyarrhythmias are usually of supraventricular origin. To investigate whether specific electrophysiologic properties of the fetal heart contribute to this preponderance by either favoring supraventricular tachycardias or by rendering ventricular tachycardias unlikely, we measured fetal electrophysiologic parameters in utero using transuterine fetal transesophageal electrocardiograms in fetal sheep. Since overdrive ...
Chung D Y - - 2001
OBJECTIVE: To evaluate the usefulness of power spectral analysis on fetal heart rate variability as a new diagnostic method of fetal distress. STUDY DESIGN: Among 76 pregnant women who underwent computerized electronic fetal monitoring and cord blood gas analysis, we divided them into three groups: normal fetus group (36); presumed ...
Sheiner E - - 2001
OBJECTIVE: To examine the significance of abnormal fetal heart rate (FHR) patterns during the second stage of labor in terms of pregnancy outcome. METHODS: A prospective observational study comparing women who had abnormal FHR patterns during the second stage of labor with women who demonstrated normal FHR patterns. RESULTS: Abnormal ...
Buhimschi C - - 2001
BACKGROUND: Fetal bradycardia is a recognized response to maternal hypothermia associated with hypoglycemia, tocolysis with magnesium sulfate, or urosepsis, and it is thought to be a direct response to the decrease in the maternal core temperature. CASE: A 25-year-old white woman, gravida 1, para 0, at 31 1/7 weeks' gestation ...
Tannirandorn Y - - 2001
Short fetal acoustic stimulation test (FAST) was prospectively studied in 604 high risk pregnancies after 28 weeks of gestation. Fetal heart rates were recorded 3 minutes before and 5 minutes after fetal acoustic stimulation. The results of the tests performed within a week of delivery were compared with perinatal outcomes. ...
Minakami H - - 2001
Significant occlusion of the lumen of the umbilical vein by thrombus was observed in 2 patients with unexplained intrauterine fetal death (IUFD)/fetal distress. Although a normal non-stress testing result was obtained 7 days prior to IUFD in one patient, IUFD was noted during regular antenatal care at 39 weeks of ...
Shay D C - - 2001
Important factors in laparoscopic surgery during pregnancy are listed here: There is a risk of aspiration because of a hormonally induced decrease in lower esophageal sphincter tone and mechanical effects of a gravid uterus. Supine hypotensive syndrome because of aortocaval compression can be a major problem. Pneumoperitoneum during pregnancy results ...
van Heteren C F - - 2001
OBJECTIVES: Fetal habituation to repeated stimulation has the potential to become a tool in the assessment of fetal condition and of the function of the fetal central nervous system (CNS). However, the influence of fetal quiescence and activity on habituation remains to be clarified. We studied habituation and the influence ...
Tongsong T - - 2001
OBJECTIVE: The aim of this study was to assess the risk of fetal loss attributable to cordocentesis at midgestation. STUDY DESIGN: A cohort study was conducted during the period 1989-1999. Women undergoing cordocentesis between 16 and 24 weeks' gestation with singleton pregnancies without obvious fetal anomaly were recruited into the ...
Onyeije C I - - 2001
OBJECTIVE: The aim of this study was to determine whether ketonuria, a commonly assessed urinary marker of maternal starvation and dehydration, is associated with abnormal fetal test results in the setting of postterm pregnancy. STUDY DESIGN: During a 4-year period (January 1993-December 1996), a total of 3655 visits for antepartum ...
Low J A - - 2001
OBJECTIVE: This study was undertaken to examine the roles of clinical risk scoring, electronic fetal heart rate monitoring, and fetal blood gas and acid-base assessment in the prediction and prevention of intrapartum fetal asphyxia in term pregnancies. STUDY DESIGN: The outcomes of 166 term pregnancies with biochemically confirmed fetal asphyxia ...
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