Gagnon R, Hunse C, Fellows F, Carmichael L, Patrick J
Department of Obstetrics and Gynecology, St. Joseph's Hospital Research Institute, University of Western Ontario, London, Canada.
Am J Obstet Gynecol. 1988 Feb;158(2):265-71. doi: 10.1016/0002-9378(88)90135-4.
Seventeen pregnant women who subsequently were delivered of infants with birth weights less than the third percentile were studied for examination of fetal heart rate and fetal activity patterns before and after a 5-second external vibratory acoustic stimulation. None of the fetuses was acidotic at birth. A reduced time was noted during which accelerations in heart rate occurred (50% less) and long-term fetal heart rate variability (25% less) in small for gestational age fetuses compared with age-matched, normally grown fetuses. The incidence of gross fetal body movements was significantly lower (40% less) in small for gestational age fetuses than in those who were appropriate for gestational age. Fetal heart rate and fetal activity patterns after stimulation with the electronic artificial larynx in small for gestational age fetuses were similar to those of appropriate for gestational age fetuses.
对17名随后分娩出出生体重低于第三百分位数婴儿的孕妇进行了研究，观察她们在接受5秒外部振动声刺激前后的胎儿心率和胎儿活动模式。所有胎儿出生时均无酸中毒情况。与年龄匹配、正常生长的胎儿相比，小于胎龄胎儿心率加速出现的时间缩短（减少50%），长期胎儿心率变异性降低（减少25%）。小于胎龄胎儿的胎儿全身运动发生率明显低于适于胎龄胎儿（减少40%）。小于胎龄胎儿经电子人工喉刺激后的胎儿心率和胎儿活动模式与适于胎龄胎儿相似。
