Why the study?
What is the normal variation in the T/QRS ratio of fetal electrocardiograms recorded during labour?
Population
25 women with normal pregnancies during labour
Design
Cohort
Follow-up
During labour
Authors
Loading...
Wide T/QRS variation in normal labor supports averaging for reliable fetal monitoring; leaves open clinical thresholds pending prospective validation.
What is the normal variation in the T/QRS ratio of fetal electrocardiograms recorded during labour?
The fetal ECG T/QRS ratio during normal labour averages 10% but shows wide individual variation, requiring data averaging to overcome poor signal-to-noise ratios.
Newbold et al. (1989) studied this question.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: