Snijders R J, McLaren R, Nicolaides K H
Harris Birthright Research Centre for Fetal Medicine, King's College Hospital, London, UK.
Fetal Diagn Ther. 1990;5(2):79-83. doi: 10.1159/000263549.
Fetal heart rate (FHR) monitoring and computer-assisted analysis of FHR patterns were used to study 190 normal pregnancies on one occasion at 20-41 weeks' gestation. The mean baseline FHR decreased, while the overall FHR variation, number of accelerations and time spent in high variation increased with gestation. The time spent in low variation did not change significantly with gestation. These data indicate that, in the interpretation of FHR patterns from high-risk pregnancies, it is necessary to make adjustments for gestational age.
采用胎儿心率（FHR）监测及FHR模式的计算机辅助分析，在妊娠20 - 41周时对190例正常妊娠进行了一次研究。平均基线FHR下降，而总体FHR变异、加速次数及高变异持续时间随孕周增加。低变异持续时间随孕周无显著变化。这些数据表明，在解读高危妊娠的FHR模式时，有必要对孕周进行校正。
