胎心监护在产前，产时已广泛的应用，但内监护经阴道操作，受一定条件的限制，而且对胎儿头皮也是一个损伤．故提高对胎心基线变异的认识很有必要。现将244例高厄妊娠的胎心监护基线变异情况分析如下。l临床资料和方法笔者对1992年9月至1994年12月在本院分娩（总人次为129O）中 Fetal heart monitoring in the prenatal, maternal and childbirth has been widely used, but within the custody of vaginal operation, subject to certain conditions, but also to the fetal scalp is also an injury. Therefore, it is necessary to raise awareness of baseline variation in fetal heart rate. Now 244 cases of high ee pregnancy fetal heart rate monitoring baseline variation is as follows. l clinical data and methods of the author from September 1992 to December 1994 in our hospital delivery (a total of 129O)