前置胎盘是威胁孕产妇和围生儿安全的一种严重并发症。为防止胎盘与子宫壁间错位，推迟阴道大流血的发生，以延长孕期到适当胎龄再终止妊娠，笔者用硫酸舒喘灵与宫内营养剂联合治疗，获得较为满意的效果。1资料与方法且．1临床资料本院1989年1月至1993年12月，对孕28～35周时出 Placenta previa threatens the safety of pregnant women and perinatal complications of a serious. In order to prevent the misplaced placenta and uterine wall, delay the occurrence of vaginal bleeding to extend the pregnancy to the appropriate gestational age and then terminate the pregnancy, the author with sulphate sulfate and intrauterine nutrients combined treatment, access to more satisfactory results. 1 materials and methods and. 1 clinical data Our hospital from January 1989 to December 1993, 28 to 35 weeks of pregnancy out