scholarly journals Monitoring Fetal Heart Rate during Labor: A Comparison of Three Methods

2017 ◽  
Vol 2017 ◽  
pp. 1-5 ◽  
Author(s):  
Tammy Y. Euliano ◽  
Shalom Darmanjian ◽  
Minh Tam Nguyen ◽  
John D. Busowski ◽  
Neil Euliano ◽  
...  
Keyword(s):  
Body Mass Index ◽  
Heart Rate ◽  
Body Mass ◽  
Fetal Heart Rate ◽  
Fetal Heart ◽  
Mean Squared Error ◽  
Scalp Electrode ◽  
Squared Error ◽  
Fetal Ecg ◽  
Fetal Scalp

The purpose of the study was to compare the accuracy of a noninvasive fetal heart rate monitor with that of ultrasound, using a fetal scalp electrode as the gold standard, in laboring women of varying body habitus, throughout labor and delivery. Laboring women requiring fetal scalp electrode were monitored simultaneously with the investigational device (noninvasive fetal ECG), ultrasound, and fetal scalp electrode. An algorithm extracted the fetal heart rate from the noninvasive fetal ECG signal. Each noninvasive device recording was compared with fetal scalp electrode with regard to reliability by positive percent agreement and accuracy by root mean squared error. Seventy-one women were included in this analysis. Positive percent agreement was83.4±15.4% for noninvasive fetal ECG and62.4±26.7% for ultrasound. The root mean squared error compared with fetal scalp electrode-derived fetal heart rate was 4.8 ± 2.0 bpm for noninvasive fetal ECG and 14.3 ± 8.2 bpm for ultrasound. The superiority of noninvasive fetal ECG was maintained for stages 1 and 2 of labor and increases in body mass index. Compared with fetal scalp electrode-derived fetal heart rate, noninvasive fetal ECG is more accurate and reliable than ultrasound for intrapartum monitoring for stages 1 and 2 of labor and is less affected by increasing maternal body mass index. This confirms the results of other workers in this field.

Application of a fetal scalp electrode for continuous fetal heart rate monitoring during an ex utero intrapartum treatment

2011 ◽  
Vol 46 (2) ◽  
pp. e37-e40 ◽  
Author(s):  
Masatoki Kaneko ◽  
Shunichi Tokunaga ◽  
Motoi Mukai ◽  
Seirou Machigashira ◽  
Youhei Maki ◽  
...  
Keyword(s):  
Heart Rate ◽  
Fetal Heart Rate ◽  
Fetal Heart ◽  
Heart Rate Monitoring ◽  
Fetal Heart Rate Monitoring ◽  
Scalp Electrode ◽  
Ex Utero Intrapartum Treatment ◽  
Fetal Scalp

664: Accuracy of fetal heart rate acquired from sensors on the maternal abdomen compared to a fetal scalp electrode

2009 ◽  
Vol 201 (6) ◽  
pp. S241 ◽  
Author(s):  
Reza Sameni ◽  
Gari Clifford ◽  
Jay Ward ◽  
Jim Robertson ◽  
Courtenay Pettigrew ◽  
...  
Keyword(s):  
Heart Rate ◽  
Fetal Heart Rate ◽  
Fetal Heart ◽  
Scalp Electrode ◽  
Fetal Scalp

scholarly journals Extraction of Fetal Heart Rate from Maternal ECG—Non Invasive Approach for Continuous Monitoring during Labor

Proceedings ◽  
2018 ◽  
Vol 2 (13) ◽  
pp. 1009 ◽  
Author(s):  
Tashreque Mohammed Haq ◽  
Safkat Arefin ◽  
Shamiur Rahman ◽  
Tanzilur Rahman
Keyword(s):  
Heart Rate ◽  
Fetal Heart Rate ◽  
Continuous Monitoring ◽  
Good Accuracy ◽  
Fetal Heart ◽  
Signal Separation ◽  
Invasive Approach ◽  
Non Invasive ◽  
Proposed Model ◽  
Fetal Scalp

Here, we propose a signal processing based approach for the extraction of the fetal heart rate (FHR) from Maternal Abdominal ECG (MAECG) in a non-invasive way. Datasets from a Physionet database has been used in this study for evaluating the performance of the proposed model that performs three major tasks; preprocessing of the MAECG signal, separation of Fetal QRS complexes from that of maternal and estimation of Fetal R peak positions. The MAECG signal is first preprocessed with improved multistep filtering techniques to detect the Maternal QRS (MQRS) complexes, which are dominant in the MAECG. A reference template is then reconstructed based on MQRS locations and removed from the preprocessed signal resulting in the raw FECG. This extracted FECG is further corrected and enhanced before obtaining the Fetal R peaks. The detection of FQRS and calculation of FHR has been compared against the reference Fetal Scalp ECG. Results indicate that the approach achieved good accuracy.

scholarly journals Non-invasive Fetal Electrocardiography for Intrapartum Cardiotocography

2020 ◽  
Vol 8 ◽  
Author(s):  
Rik Vullings ◽  
Judith O. E. H. van Laar
Keyword(s):  
Heart Rate ◽  
Doppler Ultrasound ◽  
Fetal Heart Rate ◽  
Fetal Heart ◽  
Fetal Monitoring ◽  
Irreversible Damage ◽  
Scalp Electrode ◽  
Non Invasive ◽  
Electrophysiological Measurements ◽  
Fetal Electrocardiography

Fetal monitoring is important to diagnose complications that can occur during pregnancy. If detected timely, these complications might be resolved before they lead to irreversible damage. Current fetal monitoring mainly relies on cardiotocography, the simultaneous registration of fetal heart rate and uterine activity. Unfortunately, the technology to obtain the cardiotocogram has limitations. In current clinical practice the fetal heart rate is obtained via either an invasive scalp electrode, that poses risks and can only be applied during labor and after rupture of the fetal membranes, or via non-invasive Doppler ultrasound technology that is inaccurate and suffers from loss of signal, in particular in women with high body mass, during motion, or in preterm pregnancies. In this study, transabdominal electrophysiological measurements are exploited to provide fetal heart rate non-invasively and in a more reliable manner than Doppler ultrasound. The performance of the fetal heart rate detection is determined by comparing the fetal heart rate to that obtained with an invasive scalp electrode during intrapartum monitoring. The performance is gauged by comparing it to performances mentioned in literature on Doppler ultrasound and on two commercially-available devices that are also based on transabdominal fetal electrocardiography.

663: Fetal heart rate and maternal heart rate confusion during intrapartum monitoring: comparison of trans-abdominal fetal ECG and Doppler telemetry

2011 ◽  
Vol 204 (1) ◽  
pp. S261-S262
Author(s):  
Tamara Stampalija ◽  
Maria Signaroldi ◽  
Cristina Mastroianni ◽  
Eleonora Rosti ◽  
Giorgia Loi ◽  
...  
Keyword(s):  
Heart Rate ◽  
Fetal Heart Rate ◽  
Fetal Heart ◽  
Maternal Heart Rate ◽  
Fetal Ecg

scholarly journals Intrapartum fetal scalp lactate sampling for fetal assessment in the presence of a non-reassuring fetal heart rate trace

2010 ◽  
Author(s):  
Christine E East ◽  
Leo R Leader ◽  
Penelope Sheehan ◽  
Naomi E Henshall ◽  
Paul B Colditz
Keyword(s):  
Heart Rate ◽  
Fetal Heart Rate ◽  
Fetal Heart ◽  
Fetal Scalp

Do spectral bands of fetal heart rate variability associate with concomitant fetal scalp pH?

2013 ◽  
Vol 89 (9) ◽  
pp. 739-742 ◽  
Author(s):  
Saila M. Siira ◽  
Tiina H. Ojala ◽  
Tero J. Vahlberg ◽  
Karl G. Rosén ◽  
Eeva M. Ekholm
Keyword(s):  
Heart Rate ◽  
Heart Rate Variability ◽  
Fetal Heart Rate ◽  
Fetal Heart ◽  
Spectral Bands ◽  
Fetal Scalp ◽  
Fetal Heart Rate Variability
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