Why the study?
Do uterine contractions affect the T/QRS ratio of the fetal electrocardiogram in women during labour?
Population
55 women during labour
Design
Cohort
Authors
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Small T/QRS rise during contractions likely warrants noise adjustment in fetal monitoring; leaves open confounding of ST analysis validity.
Do uterine contractions affect the T/QRS ratio of the fetal electrocardiogram in women during labour?
Uterine contractions cause a small, likely clinically insignificant increase in the fetal ECG T/QRS ratio, highlighting the importance of accounting for background noise during fetal ECG monitoring.
Newbold et al. (1995) studied this question.
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