The db10 wavelet was applied to the decomposition of the ultrasonic Doppler signals recorded on the abdomen of a pregnant woman. The correlation analysis of the wavelet reconstruction products enabled the detection of signals due to movements of fetal cardiac structures, fetal pseudobreathing and hiccups, maternal breathing and cardiac movements, the estimation of the corresponding rhythms, and...

AIMS To evaluate fetal disorders using detailed quantitative values from the actocardiogram (ACG) involving simultaneous tracing of ultrasonic Doppler fetal movement bursts and fetal heart rate (FHR). METHODS Duration of FHR accelerations and fetal movement bursts were measured manually in 20 common fetal disorders. The severity of the fetal disorder was estimated using the FHR acceleration d...

Over the past 30 years, fetal movement counts have been recommended to women in the second half of pregnancy as a way of monitoring fetal wellbeing and providing an early warning of fetal distress. However, guidance from the National Institute of Clinical Excellence (NICE) recommends abandoning this. Evidence is reviewed to show that the chance of preventing physical damage to the fetus is inde...

Fetal movements (FM) are an expression of the physiologic activity of the fetus. During recent years, several reports have shown that a "normal" pattern of FM is related to the fetal well-being. .In situations of intrauterine distress, the incidence of FM changes (1,2). However, in most of the reported studies, the results are based ön the mothers' subjective evaluation of FM. Such a recording ...

Over a five-year period in general practice, 44 antenatal patients with the risk of placental insufficiency charted the movements of their fetuses. Two stillbirths were possibly prevented and four patients had a false positive result - that is, an abnormal recording without fetal compromise. The method of charting fetal movements is discussed and results are presented in support of the chart's ...

The ontogeny of fetal autonomic, motoric, state, and interactive functioning was investigated longitudinally in a sample of 31 healthy fetuses from 20 weeks through term. Fetal heart rate and movement data were collected during 50 min of doppler-based fetal monitoring at 6 gestational ages. Measures of fetal heart rate and variability, activity level and vigor, behavioral state, and reactivity ...

The purpose of this study was to devise a means to use laser-Doppler flowmetry to measure cerebral perfusion before birth. The method has not been used previously, largely because of intrauterine movement artifacts. To minimize movement artifacts, a probe holder was molded from epoxy putty to the contour of the fetal skull. A curved 18-gauge needle was embedded in the holder. At surgery, the ho...

Fetal heart rate and fetal movements provide information on the fetal condition. In the near term human fetus, four behavioural states have been described based upon heart rate patterns and presence or absence of eye and body movements. For our studies concerning fetal physiology as well as the influence of maternal antiepileptic medication and the effects of intrauterine growth retardation on ...

Non-reassuring fetal status is a term used to describe suspected etal hypoxia and is meant to replace the more ubiquitous term fetal distress.” Fetal distress, defined as progressive fetal hypoxia nd/or acidemia secondary to inadequate fetal oxygenation, is a erm that is used to indicate changes in fetal heart patterns, reduced etal movement, fetal growth restriction, and presence of mecoium st...