Feasibility of non-invasive Foetal electrocardiography in a twin pregnancy

Abstract Background Twin pregnancy is associated with increased perinatal mortality. Close foetal monitoring is therefore warranted. Doppler Ultrasound cardiotocography is currently the only available method to monitor both individual foetuses. Unfortunately, the performance measures of this method...

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Main Authors: Lore Noben, Michelle E. M. H. Westerhuis, Judith O. E. H. van Laar, René D. Kok, S. Guid Oei, Chris H. L. Peters, Rik Vullings
Format: Article
Language:English
Published: BMC 2020-04-01
Series:BMC Pregnancy and Childbirth
Subjects:
Online Access:http://link.springer.com/article/10.1186/s12884-020-02918-8
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author Lore Noben
Michelle E. M. H. Westerhuis
Judith O. E. H. van Laar
René D. Kok
S. Guid Oei
Chris H. L. Peters
Rik Vullings
author_facet Lore Noben
Michelle E. M. H. Westerhuis
Judith O. E. H. van Laar
René D. Kok
S. Guid Oei
Chris H. L. Peters
Rik Vullings
author_sort Lore Noben
collection DOAJ
description Abstract Background Twin pregnancy is associated with increased perinatal mortality. Close foetal monitoring is therefore warranted. Doppler Ultrasound cardiotocography is currently the only available method to monitor both individual foetuses. Unfortunately, the performance measures of this method are poor and erroneous monitoring of the same twin with both transducers may occur, leaving the second twin unmonitored. In this study we aimed to determine the feasibility of monitoring both foetuses simultaneously in twin gestation by means of non-invasive foetal electrocardiography (NI-fECG), using an electrode patch on the maternal abdomen. Methods A NI-fECG recording was performed at 25 + 3 weeks of gestation on a multiparous woman pregnant with dichorionic diamniotic twins. An electrode patch consisting of eight adhesive electrodes was applied on the maternal abdomen, yielding six channels of bipolar electrophysiological measurements. The output was digitized and stored for offline processing. The recorded signals were preprocessed by suppression of high-frequency noise, baseline wander, and powerline interference. Secondly, the maternal ECG was subtracted and segmentation into individual ECG complexes was performed. Finally, ensemble averaging of these individual ECG complexes was performed to suppress interferences. Results Six different recordings were obtained from each of the six recording channels. Depending on the orientation and distance of the fetal heart with respect to each electrode, a distinction could be made between each fetus based on the morphology of the signals. Yielding of the fetal ECGs was performed manually based on the QRS complexes of each fetus. Conclusion NI-fECG with multiple electrodes allows for monitoring of the fetal heart rate and ECG of both individual fetuses in twin pregnancies.
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spelling doaj.art-6637de64e1f2428fb4909cf32e47c0a72022-12-22T03:49:39ZengBMCBMC Pregnancy and Childbirth1471-23932020-04-012011710.1186/s12884-020-02918-8Feasibility of non-invasive Foetal electrocardiography in a twin pregnancyLore Noben0Michelle E. M. H. Westerhuis1Judith O. E. H. van Laar2René D. Kok3S. Guid Oei4Chris H. L. Peters5Rik Vullings6Department of Obstetrics and Gynaecology, Máxima Medical CentreDepartment of Obstetrics and Gynaecology, Máxima Medical CentreDepartment of Obstetrics and Gynaecology, Máxima Medical CentreNemo Healthcare BV, ‘MMC Incubator’Department of Obstetrics and Gynaecology, Máxima Medical CentreDepartment of Clinical Physics, Jeroen Bosch HospitalEindhoven MedTech Innovation Centre (e/MTIC)Abstract Background Twin pregnancy is associated with increased perinatal mortality. Close foetal monitoring is therefore warranted. Doppler Ultrasound cardiotocography is currently the only available method to monitor both individual foetuses. Unfortunately, the performance measures of this method are poor and erroneous monitoring of the same twin with both transducers may occur, leaving the second twin unmonitored. In this study we aimed to determine the feasibility of monitoring both foetuses simultaneously in twin gestation by means of non-invasive foetal electrocardiography (NI-fECG), using an electrode patch on the maternal abdomen. Methods A NI-fECG recording was performed at 25 + 3 weeks of gestation on a multiparous woman pregnant with dichorionic diamniotic twins. An electrode patch consisting of eight adhesive electrodes was applied on the maternal abdomen, yielding six channels of bipolar electrophysiological measurements. The output was digitized and stored for offline processing. The recorded signals were preprocessed by suppression of high-frequency noise, baseline wander, and powerline interference. Secondly, the maternal ECG was subtracted and segmentation into individual ECG complexes was performed. Finally, ensemble averaging of these individual ECG complexes was performed to suppress interferences. Results Six different recordings were obtained from each of the six recording channels. Depending on the orientation and distance of the fetal heart with respect to each electrode, a distinction could be made between each fetus based on the morphology of the signals. Yielding of the fetal ECGs was performed manually based on the QRS complexes of each fetus. Conclusion NI-fECG with multiple electrodes allows for monitoring of the fetal heart rate and ECG of both individual fetuses in twin pregnancies.http://link.springer.com/article/10.1186/s12884-020-02918-8Foetal monitoringFoetal electrocardiogramFoetal heart rateTwin pregnancyMultiple gestation
spellingShingle Lore Noben
Michelle E. M. H. Westerhuis
Judith O. E. H. van Laar
René D. Kok
S. Guid Oei
Chris H. L. Peters
Rik Vullings
Feasibility of non-invasive Foetal electrocardiography in a twin pregnancy
BMC Pregnancy and Childbirth
Foetal monitoring
Foetal electrocardiogram
Foetal heart rate
Twin pregnancy
Multiple gestation
title Feasibility of non-invasive Foetal electrocardiography in a twin pregnancy
title_full Feasibility of non-invasive Foetal electrocardiography in a twin pregnancy
title_fullStr Feasibility of non-invasive Foetal electrocardiography in a twin pregnancy
title_full_unstemmed Feasibility of non-invasive Foetal electrocardiography in a twin pregnancy
title_short Feasibility of non-invasive Foetal electrocardiography in a twin pregnancy
title_sort feasibility of non invasive foetal electrocardiography in a twin pregnancy
topic Foetal monitoring
Foetal electrocardiogram
Foetal heart rate
Twin pregnancy
Multiple gestation
url http://link.springer.com/article/10.1186/s12884-020-02918-8
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