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Maternal caffeine consumption and fetal behavior in normal third-trimester pregnancy
L D Devoe1, C Murray, A Youssif
1Department of Obstetrics and Gynecology, Medical College of Georgia, Augusta 30912.
American Journal of Obstetrics and Gynecology
|April 1, 1993
Summary
Maternal caffeine intake during pregnancy affects fetal behavior. High caffeine consumption in the third trimester led to increased fetal arousal and less active sleep.
Area of Science:
- Obstetrics and Gynecology
- Fetal Development
- Maternal Health
Background:
- Maternal diet during pregnancy can impact fetal development.
- Caffeine is a common substance with potential physiological effects.
Purpose of the Study:
- To investigate the influence of maternal caffeine consumption on fetal behavior.
- To compare fetal behavioral states between high and low caffeine intake groups during the third trimester.
Main Methods:
- Longitudinal cohort study of 20 normal third-trimester pregnancies.
- Categorization of pregnant women into high (>500 mg/day) and low (>200 mg/day) caffeine consumers.
- Biweekly ultrasonographic observations of fetal behavior and maternal serum caffeine levels.
Main Results:
- High caffeine consumers showed less active sleep and more arousal states in fetuses.
- No significant differences in quiet sleep or state changes were observed.
- Maternal serum caffeine levels were consistently higher in the high consumption group.
Conclusions:
- Maternal caffeine consumption levels during the third trimester may influence evolving fetal behavior.
- Specific fetal behavioral states, such as arousal and active sleep, appear sensitive to caffeine intake.