不同浓度利多卡因星状神经节阻滞的效果比较

目的 比较不同浓度盐酸利多卡因星状神经节阻滞的效果。方法 选择行星状神经节阻滞的患者92例，将其随机分为A、B、c、D 4组（n=23），各组利多卡因浓度分别为0．25％、0．50％、0．75％、1．00％，行左或右侧星状神经节阻滞，利多卡因用量为5ml；观察各组阻滞起效时间、维持时间、阻滞有效率和并发症。结果 阻滞起效时间D组较其他组快，A组最慢（P〈0.05）；A、B组阻滞维持时间较C、D组短，D组最长（P〈0.05）；C、D组阻滞有效率分别为78．2％（19／23例）和82．6％（18／23例）与A组34．8％（8／23例）和B组52．5％（12／23例）比较明显增高（P〈0．01），C、D组间差异无统计学意义；各组并发症发生率差异无统计学意义。结论 使用0.75％盐酸利多卡因行星状神经节阻滞较适宜。

Comparing the effectiveness of stellate ganglion block with different lidocaine concentrations

Objective To compare the effectiveness of stellate ganglion block with different li- docaine concentrations. Methods Ninety-two patients with stellate ganglion block （left or right side） were randomly divided into four groups： group A （0.25% lidocaine）, group B （0.5% lido- caine）, group C （0. 75%lidocaine） and group D （1.0% lidocaine）, 23 cases in each. All of the pa- tients were given lidocaine 5 ml. The onset time, the duration time, the effective rate of block and complications were recorded. Results The onset time was faster in group D than that in the other groups, which in group A was the slowest （P〈0.05）. Duration time was shorter in group A and B than that in group C and D, which in group D was the longest （P〈0.05）. Effective rate of block was 78.2% （19/23cases） in group C and 82.6% （18/23 cases） in group D, both were much higher than that in group A 34.8%（8/23 cases）and group B 52.5%（12/23 cases） （P〈0.01）. There was no significant difference in the effective rate between group C and D. No differences were found in the complications among the groups. Conclusion Stellate ganglion block with 0.75% lidocaine is suit- able.