Results 191 to 200 of about 349,300 (234)
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The recording of the fetal electrocardiogram
American Heart Journal, 1942Abstract An improved method for recording the fetal electrocardiogram is described; it uses the 3-channel electroencephalograph and crystograph ink writers. Fetal waves were recorded successfully from the seventeenth week of pregnancy onward, and 82 per cent of the tracings taken during this period were positive.
James W. Ward, J. Allen Kennedy
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The abnormal fetal electrocardiogram
American Journal of Obstetrics and Gynecology, 1962Abstract 1. Nine cases are drawn from records of this laboratory which show that fetal electrocardiogram abnormalities were seen in a variety of instances associated with difficulty for the fetus. 2. The abnormal characteristics of the fetal ECG included wide or unusual wave-forms for the fetal QRS, ST segment depression or elevation, notching ...
Saul D. Larks, Gail V. Anderson
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Baillière's Clinical Obstetrics and Gynaecology, 1996
Summary Advances in microprocessing technology have made fetal ECG analysis a feasible adjunct to fetal surveillance. Time interval and morphology changes of the FECG occur during fetal hypoxia. The use of these changes to detect a fetus at risk of intrapartum asphyxia awaits validation in terms of both future and ongoing clinical trials. Recognition
Willem J. van Wijngaarden +2 more
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Summary Advances in microprocessing technology have made fetal ECG analysis a feasible adjunct to fetal surveillance. Time interval and morphology changes of the FECG occur during fetal hypoxia. The use of these changes to detect a fetus at risk of intrapartum asphyxia awaits validation in terms of both future and ongoing clinical trials. Recognition
Willem J. van Wijngaarden +2 more
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Maternal-fetal electrocardiogram conduction with intrapartum fetal death
American Journal of Obstetrics and Gynecology, 1972Abstract All parturient patients with fetuses at risk should be simultaneously monitored for relationships of amplitude, duration, and frequency of uterine contractions, and changes in fetal heart rate patterns. Inability to auscultate the fetal heart sounds during labor, in addition to the subjective complaint of the mother of absent fetal movement,
C I, Schneiderman +2 more
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Bailliere's clinical obstetrics and gynaecology, 1996
Advances in microprocessing technology have made fetal ECG analysis a feasible adjunct to fetal surveillance. Time interval and morphology changes of the FECG occur during fetal hypoxia. The use of these changes to detect a fetus at risk of intrapartum asphyxia awaits validation in terms of both future and ongoing clinical trials.
W J, van Wijngaarden +2 more
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Advances in microprocessing technology have made fetal ECG analysis a feasible adjunct to fetal surveillance. Time interval and morphology changes of the FECG occur during fetal hypoxia. The use of these changes to detect a fetus at risk of intrapartum asphyxia awaits validation in terms of both future and ongoing clinical trials.
W J, van Wijngaarden +2 more
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The Effect of Epidural Bupivacaine on the Fetal Electrocardiogram
Australian and New Zealand Journal of Obstetrics and Gynaecology, 1996Summary: Fetal electrocardiogram waveform analysis was used to assess the effect of epidural bupivacaine on the fetal myocardial conducting system by evaluating its effect on the PR interval, RR interval, T/QRS ratio and the PR‐RR correlation coefficient. There were no significant changes in either the PR interval or the PR‐RR correlation coefficient.
K, Phillips +4 more
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Variation in the fetal electrocardiogram with period of gestation
American Journal of Obstetrics and Gynecology, 1963Abstract This study of 105 fetal ECG's through all phases of gestation has localized a significant decrease in ECG voltage reaching its lowest between the twenty-sixth to thirtieth weeks, on the average. Several areas of research to find the cause of the decrease are suggested. These areas are fetal ECG source strength and the electrical conductivity
A F, CAUGHEY, L H, KROHN
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The fetal electrocardiogram: Relationship with acidemia at delivery
American Journal of Obstetrics and Gynecology, 2000This study was undertaken to analyze the relationship between the fetal electrocardiogram and arterial pH and base excess at delivery.In the labor wards of three teaching hospitals a retrospective observational study was conducted on fetal monitor recordings of 679 women for whom there was an indication for continuous fetal monitoring during labor ...
B, Strachan +4 more
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A New Algorithm for Extracting Fetal Electrocardiogram
2009 Fifth International Conference on Natural Computation, 2009The extraction of fetal electrocardiogram (FECG) from the composite maternal ECG signal is discussed. This problem can be deduced to blind source extraction. Barros and Cichocki presented an objective function by using blind signal extraction along with prior information about the autocorrelation property of the FECG from the noisy free measurements ...
Shouliang Yang, Zhonghua Wang
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ST Analysis of the Fetal Electrocardiogram in Intrapartum Fetal Monitoring
Obstetrics & Gynecology, 2012To compare the effects of ST-waveform analysis in combination with cardiotocography with conventional cardiotocography for intrapartum fetal monitoring.We searched MEDLINE, Embase, and PubMed for randomized controlled trials (RCTs) evaluating ST-waveform analysis for intrapartum fetal monitoring.We identified RCTs that compared ST-waveform analysis and
Becker, J. +10 more
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