笔者就我院1996年全年301例剖腹产，其中在连续硬膜外麻醉下行152例，发生仰卧位低血压综合征13例，发生率约为8．5％，用氯胺团静脉麻醉149例，无1例发生此征。现讨论如下。实践证明，在产科平卧时约有80％的产妇下腔静脉被子富压迫，甚至完全阻塞，在应用硬膜外麻醉后，腹肌 In our hospital in 1996, 301 cases of caesarean section throughout the year, of which 152 cases under continuous epidural anesthesia, supine hypotensive syndrome occurred in 13 cases, the incidence was about 8.5%, with chloramine intravenous anesthesia in 149 cases No one had this sign. Are discussed below. Practice has shown that about 80% of maternal inferior vena cava in the obstetrical supine quilt or oppression, or even completely blocked, in the application of epidural anesthesia, abdominal muscles