硬膜外阻滞作为剖宫产术的麻醉方法在国内已普遍开展,被认为是较理想的麻醉方法,但麻醉后常发生低血压(收缩压降至10.7～13.3kPa)或较重的仰卧位低血压综合征.我院在不影响麻醉效果的前提下,为了减少低血压的发生,自1986年3月至1989年5月采用硬膜外单次给固定药量后再置管,辅以膀胱腹 Epidural blockade as a method of anesthesia in cesarean section has been widely carried out in the country, is considered a more ideal method of anesthesia, but often occurs after anesthesia hypotension (systolic blood pressure down to 10.7 ~ 13.3kPa) or heavier supine Bit hypotension syndrome in our hospital under the premise of not affecting the anesthetic effect, in order to reduce the incidence of hypotension, from March 1986 to May 1989 with a single epidural fixed dose after the catheter, supplemented With bladder belly