Active contractions of the cervix in the latent phase of labour

@article{Rudel1999ActiveCO,
  title={Active contractions of the cervix in the latent phase of labour},
  author={Drago Rudel and Marjan Pajntar},
  journal={BJOG: An International Journal of Obstetrics \& Gynaecology},
  year={1999},
  volume={106}
}
  • D. Rudel, M. Pajntar
  • Published 1 May 1999
  • Medicine
  • BJOG: An International Journal of Obstetrics & Gynaecology
Objective To study the activity of the human uterine cervix at the onset of labour and further characterise cervical asynchronous electromyographic (EMG) activity in the latent phase. 
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15 Citations
Background Citations
3
Methods Citations
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15 Citations

Citation Type

Citation Type

EMG activity of the muscular and stromal layer of the cervix in relation to EMG activity of the myometrium and cervical dilatation in PGF2alpha induced parturition in the cow.
A uterine electromyographic activity as a measure of labour progression
TLDR
By measuring and processing EMG signals from the uterine corpus and the cervix an obstetrician can obtain an additional useful information on the progress of labour.
Predictive value of EMG basal activity in the cervix at initiation of delivery in humans
TLDR
EMG parameters – amplitude and frequency contents – were related to Cumulative Bishop Score values assessed by an obstetrician in each woman at the labor onset and show that the parameters are predictive of the CBS, both correlating negatively with the CBS value.
Evaluating the progress of the labour with sample e ntropy calculated from the uterine EMG activity
TLDR
Investigation of the possibili ty to follow-up the progress of the labour by using electromyographic signals obtained from the uterine corpus and cervix using sample entropy, i.e. the measure of time - series regularity, which was calculated fro m uterine Corpus and cervical cervix electromyography signals.
The potential role of the cervix in myometrial function
Smooth muscle cells in bovine cervical ripening and dilatation; contractility, degrading enzymes and inflammation
TLDR
Final ripening at term parturition is a non-infectious inflammatory process influenced by regulatory cytokines and co-expression with vimentin suggests that the stromal smooth muscle cells predominantly have a secretory function in cows.
Contractile function of the cervix plays a role in normal and pathological pregnancy and parturition.
IN-VIVO ELECTRICAL STIMULATION OF UTERINE SMOOTH MUSCLES IN SHEEP
TLDR
An animal model was established for invivo studies of the EMG responses of a parturient uterine smooth muscle tissue to electrical stimuli and responses registered during control measurements following each electrical stimulation session show an increase in theEMG signal amplitude (RMS) and a change in the signal frequency contents (increased MF and shift in PDS).
A new paradigm for the role of smooth muscle cells in the human cervix.
Cervical alterations in pregnancy.
  • Joy Y. Vink, K. Myers
  • Medicine, Biology
    Best practice & research. Clinical obstetrics & gynaecology
  • 2018
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References

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TLDR
The objective is to assess the cervical response to myometrial activity in early labour to establish a baseline for this type of research on women going into labour with high-risk pregnancies.
Changes in electromyographic activity of the cervix after stimulation of labour with oxytocin.
TLDR
The basic pattern of oxytocin-produced changes in muscular contractions in the cervix observed via EMG activity is that of the activity increasing with contractions of the uterine corpus and diminishing between contractions.
Changes in cervical electromyographic activity and their correlation with the cervical response to myometrial activity during labour.
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Cervical contractions: the response of the cervix to oxytocic stimulation in the latent phase of labour
TLDR
The inner circular and middle vascular layers of interlacing muscle fibre may have a more prominent role to play than has the cervix through intrinsic or extrinsic prostaglandins or some inherent fetal biochemical changes.
Electromyographic activity in cervices with very low Bishop score during labor
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  • Medicine
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Longitudinally and circularly measured EMG activity in the human uterine cervix during labour.
TLDR
It was found that the EMG measured from the two leads differed in unripe cervices in the latent phase of labour, and some possible explanations for the different activity are discussed.
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Effect of spasmoanalgetic Dolantin on the electromyographic activity of the cervix during labour.
TLDR
Dolantin administered during the latent phase of induced labour did not accelerate cervical dilatation either in the latent or in the active phase of amniotomy- and Oxytocin-induced labour.
The effect of cervical contractions on the generation of intrauterine pressure during the latent phase of labour
TLDR
Fetal cooling has not been implicated in teratogenesis but it would be prudent to limit the decrease in amniotic fluid temperature during amnifiltration (RCOG 1984), and suitable measures include increase in room temperature or the use of insulated tubing and syringe.
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