O'Grady J P, Richardson B, Hohimer A R, Burry K A
Am J Obstet Gynecol. 1983 May 1;146(1):52-6. doi: 10.1016/0002-9378(83)90926-2.
Gross fetal body movements and fetal heart rate were studied serially during the last trimester of pregnancy by real-time ultrasound in 11 healthy women during the inhalation of 4% carbon dioxide in air. We observed that induction of maternal hypercapnia during the last 10 weeks of pregnancy had no effect on the percentage of time of gross fetal body movements or on fetal heart rate accelerations.
在妊娠晚期，对11名健康孕妇在吸入4%二氧化碳与空气的混合气体时，通过实时超声连续研究了胎儿大体躯体运动和胎儿心率。我们观察到，在妊娠最后10周诱发母体高碳酸血症对胎儿大体躯体运动的时间百分比或胎儿心率加速均无影响。
