Sinclair C J, Scott D B, Edström H H
Br J Anaesth. 1982 May;54(5):497-500. doi: 10.1093/bja/54.5.497.
In a double-blind study, the effect of the Trendelenberg position was compared with the supine, in 20 patients following intrathecal injection of 3 ml of 0.5% bupivacaine in 8% glucose. All patients had blocks suitable for abdominal surgery. Although the mean spread was greater in those patients titled head-down, this was not statistically significant. The variation of the spread around the mean was greater in the head-down group, and blocks extended into the cervical region in two patients. There were no differences in motor block, duration or cardiovascular changes between the groups. It is concluded that the trendelenberg position is not necessary to ensure spread of local anaesthetic solution into the mid thoracic region for abdominal surgery.
在一项双盲研究中，将20例鞘内注射3毫升0.5%布比卡因加8%葡萄糖的患者，头低脚高位与仰卧位的效果进行了比较。所有患者的阻滞均适用于腹部手术。尽管头低脚高位患者的平均扩散范围更大，但这在统计学上并不显著。头低脚高位组平均扩散范围周围的变异更大，有两名患者的阻滞延伸至颈部区域。两组之间在运动阻滞、持续时间或心血管变化方面没有差异。得出的结论是，对于腹部手术，头低脚高位并非确保局部麻醉溶液扩散至胸段中部所必需。
