Miyabe M, Sonoda H, Namiki A
Department of Anesthesia, Kushiro General City Hospital, Japan.
Anesth Analg. 1995 Jul;81(1):96-8. doi: 10.1097/00000539-199507000-00019.
We compared the effect of the lithotomy position on the systolic blood pressure (SBP) with the horizontal position after spinal block. The lithotomy position was performed 5 min after spinal block. The change in SBP was expressed as percent of depression from the baseline value. The SBP increased by the lithotomy position (n = 14) from a 16% decrease to an 8% decrease. On the contrary, in the horizontal group (n = 14), SBP decreased 16% at 5 min and continued to decrease to 21%. The extent of the cephalad spread of analgesia 20 min after spinal block was same between the two groups (T-5 +/- 2 vs T-5 +/- 2, respectively). From these results we conclude that the lithotomy position after spinal anesthesia attenuates the decrease in arterial blood pressure and does not affect the cephalad spread of analgesia.
我们比较了截石位与脊髓阻滞水平位对收缩压（SBP）的影响。截石位在脊髓阻滞后5分钟实施。SBP的变化表示为相对于基线值的降低百分比。截石位组（n = 14）的SBP从降低16%增加到降低8%。相反，水平位组（n = 14）的SBP在5分钟时降低16%，并持续降低至21%。两组在脊髓阻滞后20分钟时镇痛向头端扩散的程度相同（分别为T - 5±2 与T - 5±2）。从这些结果我们得出结论，脊髓麻醉后的截石位可减轻动脉血压的下降，且不影响镇痛向头端的扩散。
