罗哌卡因椎管内注药速度对麻醉平面的观察

Observation of injection drug speed in ropivcaine combined spinal epidural anesthesia

目的探讨罗哌卡因椎管内相同剂量不同注药速度对麻醉平面的影响。方法选择ASAⅠ～Ⅱ级适合行椎管内麻醉的择期手术患者80例,随机分为三组,0.75%罗哌卡因2 ml(15 mg),A组注药速度10 s,B组注药速度20 s,C组注药速度30 s,并记录麻醉阻滞平面达T_(10)时间;腰麻最高平面时间;腰麻后30 min平均动脉压(MAP);需追加硬膜外用药例数。结果B组麻醉效果最佳,阻滞平面满意,血液动力学稳定,无需追加硬膜外用药。结论0.75%罗哌卡因2 ml椎管内联合麻醉注药速度以20 s为宜。

Objective To investigate the effect of ropivacaine combined with intra-spinal epidural anesthesia by using the same volume but different injection speed on anaesthetic level. Methods 80 cases of patients of ASA Ⅰ～Ⅱ degree suitable to use intra-spinal epidural combined anesthesia for gynecologic operation were selected and randomly divided into three groups, 0.75 % ropivacaine 2mg（15mg） administered, group A the speed of injection was 10 seconds, group B injection speed was 20 seconds, group C injection speed was 30 seconds, the anaesthetic level reached T10. The time of highest level in spinal anesthesia, 30 minutes after spinal anesthesia MAP, and number of cases need to add epidural drug were all recorded. Results The best effect of anesthesia was found in group B,the block level of anesthesia was sausfactory,blood dynamic was stable,and there was no need to add epidural drug. Conclusion The speed of 0.75 % ropivacaine 2ml spinal epidural combined with anesthesia was suitable at the speed of 20 seconds.