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虽然日益广泛地采用体外胎心产力描记图(CTG)来评价妊娠晚期的胎儿情况,但尚无普遍公认的分类法。本文企图设计并试验这样一种方法。病人与方法自1973年,作者医院已常规使用产前CTG,其指征:临床怀疑胎儿有危险、产前出血或每日胎动次数减少。每一病人连续描记最少30分钟,且必须记录两次宫缩。病人取侧卧位,向前倾斜15度或更多,以减少子宫对主动脉和腔静脉的压力。不论使用Hew-lett-Packard8025B型或8030A型记录仪,均用多普勒(Doppler)超声仪记录胎心率(FHR)并作为对胎儿的刺激。用体外压力传送器描绘子宫收
Although in vitro fetus fetal mapping (CTG) is increasingly used to assess fetal status in the third trimester, there is no universally accepted taxonomy. This article attempts to design and test such a method. Patients and Methods Since 1973, the author’s hospital has routinely used prenatal CTG indications that it is clinically suspected that the fetus is at risk for prenatal bleeding or a reduction in the number of fetal movements per day. Each patient has a minimum of 30 minutes of continuous tracing and must record contractions twice. Patients take the lateral position, tilt forward 15 degrees or more to reduce the uterine aortic and vena cava pressure. Whether using the Hew-lett-Packard Model 8025B or Type 8030A, a fetal doppler was used to record fetal heart rate (FHR) and act as a stimulus to the fetus. Describe the uterus with an external pressure transmitter