The relation between fetal heart rate accelerations and fetal movements

Area of Science:

• Obstetrics and Gynecology
• Fetal Monitoring
• Perinatal Medicine

Background:

• Fetal heart rate (FHR) accelerations are a key indicator of fetal well-being.
• Fetal movements are known to elicit FHR accelerations.

Purpose of the Study:

• To correlate maternal perception and ultrasonographic visualization of fetal movements with FHR accelerations.
• To determine the reliability of FHR accelerations in verifying fetal movements.

Main Methods:

• 52 pregnant women (normal and high-risk) were studied.
• Fetal movements were assessed via maternal report and real-time ultrasonography.
• FHR was monitored for accelerations in response to observed or reported fetal movements.

Main Results:

• Large FHR accelerations (≥15 bpm for ≥15 sec) were associated with 78.6% of maternal-perceived movements and 99.6% of ultrasonographically observed movements.
• Small FHR accelerations (<15 bpm) were associated with 52.9% of maternal-perceived and 82.4% of ultrasonographically observed movements.
• Mothers perceived 75.7% of fetal movements visualized by ultrasound.

Conclusions:

• Large FHR accelerations are a strong, verifiable indicator of fetal movement.
• FHR monitoring can effectively confirm fetal movements, supporting its role in assessing fetal well-being.