Uterine contraction frequency after initiation of labour epidural analgesia using electrohysterography monitoring: a prospective pilot study
Main finding · Mean uterine contraction frequencyResult — go to the resultDifference −0.37 contractions/10 minutes 95% CI −0.64 to −0.11Authors' conclusion
During active labour, electrohysterography identified a statistically significant, although clinically small, reduction in uterine contraction frequency after epidural analgesia initiation.
Study context
- Population
- Pregnant women at 36–42 weeks' gestation, singleton cephalic presentation, requesting epidural analgesia in active labour
- Participants
- 23 women
- Exposure
- After epidural vs Before epidural
- Outcome
- Difference in mean uterine contraction frequency (electrohysterography-derived tocogram) 60 min before vs 120 min after epidural analgesia initiation
Methodological detailsbefore-after
- Before-after
Main finding
Mean uterine contraction frequency · 120 minutes after epidural analgesia initiation
Difference
−0.37 contractions/10 minutes
95% CI −0.64 to −0.11
P = 0.007
After epidural vs Before epidural
difference −0.37 contractions/10 minutes (95% CI −0.64 to −0.11); P = 0.007
As reported in the abstract
Observational data: associations, not effects.
Further findings
| Outcome | Difference (contractions/10 minutes) (95% CI) | P value | |
|---|---|---|---|
| Mean contraction frequency over time (largest decrease) · 60-90 minutes after epidural analgesia initiation | −0.47 (−0.89 to −0.05) | P = 0.029 | |
| −1−0.500.5Difference, contractions/10 minutes (linear scale) |
Original publication
Uterine contraction frequency after initiation of labour epidural analgesia using electrohysterography monitoring: a prospective pilot study. Int J Obstet Anesth. Published 16 November 2024. doi:10.
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