Nageotte M P, Freeman R K, Freeman A G, Dorchester W
Am J Obstet Gynecol. 1983 Mar 1;145(5):566-9. doi: 10.1016/0002-9378(83)91197-3.
One hundred eighty-eight patients undergoing antepartum fetal heart rate (FHR) monitoring with abdominal fetal electrocardiogram (ECG) technique were studied with respect to FHR variability derived from fetal R-R intervals. Statistically significant positive correlation existed between various measures of FHR variability and accelerations per minute (p less than 0.01). Insufficient numbers of positive contraction stress tests (CST) were available to establish a relationship with variability, although a trend existed between positive CST and low variability. Postdate pregnancies had significantly higher variability than nonpostdate pregnancies (p less than .05). This mathematical analysis establishes statistical significance between short-term variability and accelerations per minute and application of this technique for assessment of true variability in antepartum testing is possible.
对188例采用腹部胎儿心电图（ECG）技术进行产前胎儿心率（FHR）监测的患者，就胎儿R-R间期得出的FHR变异性进行了研究。FHR变异性的各项测量指标与每分钟胎动加速之间存在显著的正相关（p<0.01）。虽然阳性宫缩应激试验（CST）与变异性之间存在一种趋势，但由于阳性CST数量不足，无法确定它们之间的关系。过期妊娠的变异性显著高于未过期妊娠（p<0.05）。该数学分析确定了短期变异性与每分钟胎动加速之间的统计学意义，并且该技术可用于评估产前检查中的真实变异性。
