Spatiotemporal electrohysterography patterns in normal and arrested labor

Euliano, T. Y.; Marossero, Dorothee; Nguyen, Minh Tam; Euliano, Neil R.; Prı́ncipe, José C.; Edwards, Rodney K.

doi:10.1016/j.ajog.2008.09.008

Cited by 71 publications

(90 citation statements)

References 21 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…There are only few studies dedicated to the EHG signal propagation properties by multichannel recordings [10], [11]. These studies investigated the propagation on a large scale by analyzing the EHG bursts on the whole uterine muscle.…”

Section: Discussionmentioning

confidence: 99%

“…An additional novelty of this paper resides in the EHG signal recording methodology, which comprises the use of a high-density (HD) electrode grid. The grid, in fact, integrates a larger number of electrodes (64) with a reduced surface and smaller interelectrode distance with respect to the previous literature [5], [6], [10], [18], [23]. Furthermore, due to a priori unknown AP direction of propagation, the bidimensional arrangement of the electrodes on the grid (8×8) permits to estimate all the possible CV directions along the abdominal plane parallel to the abdominal surface.…”

mentioning

confidence: 99%

“…The ultimate goal and main challenge remain the prediction of preterm delivery. While the reported techniques are mostly based on single channel measurements [9], we believe that important information for monitoring and predicting the progress of pregnancy resides in the EHG signal propagation characteristics as also suggested in [10] and [11].…”

mentioning

confidence: 99%

See 2 more Smart Citations

Noninvasive Estimation of the Electrohysterographic Action-Potential Conduction Velocity

Rabotti

Mischi

Oei

et al. 2010

IEEE Trans. Biomed. Eng.

View full text Add to dashboard Cite

Abstract-Electrophysiological monitoring of the fetal-heart and the uterine-muscle activity, referred to as an electrohysterogram, is essential to permit timely treatment during pregnancy. While remarkable progress is reported for fetal-cardiac-activity monitoring, the electrohysterographic (EHG) measurement and interpretation remain challenging. In particular, little attention has been paid to the analysis of the EHG propagation, whose characteristics might be predictive of the preterm delivery. Therefore, this paper focuses, for the first time, on the noninvasive estimation of the conduction velocity of the EHG-action potentials. To this end, multichannel EHG recording and surface high-density electrodes are used. A maximum-likelihood method is employed for analyzing the EHG-action-potential propagation in two dimensions. The use of different weighting strategies of the derived cost function is introduced to deal with the poor signal similarity between different channels. The presented methods were evaluated by specific simulations proving the best weighting strategy to lead to an accuracy improvement of 56.7%. EHG measurements on ten women with uterine contractions confirmed the feasibility of the method by leading to conduction velocity values within the expected physiological range.

show abstract

Section: Discussionmentioning

confidence: 99%

mentioning

confidence: 99%

See 1 more Smart Citation

Noninvasive Estimation of the Electrohysterographic Action-Potential Conduction Velocity

Rabotti

Mischi

Oei

et al. 2010

IEEE Trans. Biomed. Eng.

View full text Add to dashboard Cite

show abstract

“…For example, electromyography has been employed to detect changes in uterine electrical activity associated with labour [75][76][77][78]. Cervical ultrasound can detect preterm effacement of the uterine cervix.…”

Section: Subclinical Evidence Of Activation Of the Common Pathwaymentioning

confidence: 99%

The preterm parturition syndrome and its implications for understanding the biology, risk assessment, diagnosis, treatment and prevention of preterm birth

Gotsch

Romero²,

Erez

et al. 2009

The Journal of Maternal-Fetal & Neonatal Medicine

117

View full text Add to dashboard Cite

“…Uterine contraction detection is also possible with these sensors. Using surface electrodes, Euliano et al [26] have measured the characteristics of the electrohistogram (EHG) of uterine contractions. In this small study, uterine contractions propagated with less fundal dominance in mothers with active phase arrest of dilation compared with mothers with vaginal delivery.…”

Section: Three Basic Steps In Clinical Monitoringmentioning

confidence: 99%

New perspectives in electronic fetal surveillance

Hamilton¹,

Warrick²

2012

Journal of Perinatal Medicine

View full text Add to dashboard Cite

Despite its recognized limitations, fetal heart rate monitoring is a mainstay of intrapartum care. Although the basic technology in standard electronic fetal monitors has changed little in recent decades, clinical behavior in response to heart rate monitoring has changed considerably. In addition to clearly defi ned nomenclature and clinical guidelines, there is an increased awareness that environmental and human factors can impair clinical judgment, resulting in delayed intervention and, consequently, birth-related injury. This review examines three essential steps that affect clinical outcome: (1) signal acquisition, (2) associations with physiological outcome, and (3) clinical intervention. Only the third step is directly responsible for changing clinical outcome. However, timely initiation of interventions is dependent upon the second step, which is dependent upon the fi rst step. Thus, defi ciencies at each step tend to accumulate and contribute to the worsening of overall clinical outcome. This review article summarizes advances occurring at each step. The synergy and convergence of innovations in engineering, mathematics, and behavioral science shows considerable promise in intrapartum fetal surveillance.

show abstract

Spatiotemporal electrohysterography patterns in normal and arrested labor

Cited by 71 publications

References 21 publications

Noninvasive Estimation of the Electrohysterographic Action-Potential Conduction Velocity

Noninvasive Estimation of the Electrohysterographic Action-Potential Conduction Velocity

The preterm parturition syndrome and its implications for understanding the biology, risk assessment, diagnosis, treatment and prevention of preterm birth

New perspectives in electronic fetal surveillance

Contact Info

Product

Resources

About