妊娠高血压综合征(简称妊高征)的发生率及母体死亡率在产科处于首位。其胎儿围产期死亡率可高达15％。因此,在行剖宫产手术的麻醉中保障母子安全尤为重要。一、麻醉时应注意的病理生理特点 1.广泛的动脉痉挛导致有效循环血容量的减少,血液浓缩。 2.水钠潴留高于正常妊娠者。 3.凝血和纤溶平衡失调可引起慢性血管內凝血。 4.脑应激性增高。因此,在临床上有如下特 The incidence of pregnancy-induced hypertension (PIH) and maternal mortality in obstetrics in the first place. Its perinatal mortality rate can be as high as 15%. Therefore, in the cesarean section anesthesia to protect the safety of mother and child is particularly important. First, the anesthesia should pay attention to the pathophysiological characteristics 1. A wide range of arterial spasms lead to the reduction of effective circulating blood volume, blood concentration. 2. Shuinazhuliu than normal pregnancy. 3 coagulation and fibrinolytic imbalance can cause chronic intravascular coagulation. 4. Brain stress increased. Therefore, the following special clinical