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Updated: Oct 11, 2026

Fetal Echocardiography and Pulsed-wave Doppler Ultrasound in a Rabbit Model of Intrauterine Growth Restriction
Published on: June 29, 2013
Fewer accelerations and decreased long term variability in the heart rate of small for gestational age fetuses
1Department of Obstetrics and Gynaecology, University of Stellenbosch, Tygerberg, South Africa.
Two hundred newborns delivered after decelerative antenatal fetal heart rate tracings were divided retrospectively into two groups, one that was small for gestational age (SGA) and another that was appropriately grown for gestational age (AGA). Analysis of the tests showed a lower prevalence of good long term variability in the SGA group when compared with the AGA group. In addition, fetal heart rate accelerations occurred less frequently in the SGA group, even in the presence of good long term variability.
Two hundred newborns delivered after decelerative antenatal fetal heart rate tracings were divided retrospectively into two groups, one that was small for gestational age (SGA) and another that was appropriately grown for gestational age (AGA). Analysis of the tests showed a lower prevalence of good long term variability in the SGA group when compared with the AGA group. In addition, fetal heart rate accelerations occurred less frequently in the SGA group, even in the presence of good long term variability.

