Day to Day Variation in Fetal Heart Rate Variability

Day to Day Variation in Fetal Heart Rate Variability Based on Fetal Electrocardiography (FECG), in a Standardized Setting: A Cohort Study

Status

Completed

Phases

Unknown

Study type

Observational

Source

ClinicalTrials.gov

Registry ID

NCT04289350

Acronym

(FHRV)

Enrollment

Registered

2020-02-28

Start date

2018-09-01

Completion date

2020-07-01

Last updated

2022-11-02

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Fetal Growth Retardation

Brief summary

This study evaluates the day-to-day variation in fetal heart rate variability based on non-invasive fetal-ECG (NI-FECG). Furthermore, the effect of fetal movements on fetal heart rate variability will be assessed.

Interventions

DIAGNOSTIC_TESTfetal heart rate variability

An observational study. No intervention

Study design

Observational model

COHORT

Time perspective

PROSPECTIVE

Eligibility

Sex/Gender

FEMALE

Inclusion criteria

* Healthy singleton pregnant women with an expected healthy fetus

Exclusion criteria

* fetal malformations, multiple pregnancy, obstetric complications, maternal chronic disease and labor. Low birth weight or malformation diagnosed at birth.

Design outcomes

Primary

Measure	Time frame	Description
Root mean square of successive inter beat interval differences (RMSSD)	1/8-2020	Time domain analysis
Standard deviation of normal to normal inter beat interval (SDNN)	1/8-2020	Time domain analysis
High frequency power (HF-power)	1/8-2020	Spectral analysis
Low frequency power (LF-power)	1/8-2020	spectral analysis
Low frequency power/High frequency power (LF/HF)	1/8-2020	Spectral analysis

Countries

Denmark

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026