不同浓度罗派卡因用于老年患者臂丛神经阻滞麻醉的临床比较研究

目的：比较不同浓度的罗派卡因对老年患者臂丛神经感觉、运动神经阻滞起效和维持时间的影响。方法：选择60例行择期上肢手术老年患者。男38例，女21例，年龄65—78岁。ASAⅠ-Ⅲ级。随机分为两组。定时记录感觉、运动神经完全阻滞起效时间和维持时间，观察并记录术中生命体征的变化和有无并发症发生。结果：两组患者感觉和运动神经阻滞的起效时间和维持时间有极显著性差异（P〈0．05），术中生命体征和并发症发生率无显著性差畀。结论：0．37％相较0．25％罗哌卡因用于老年患者臂丛神经阻滞麻醉起效更快，维持时间更长，副作用风险来见增加，可常规用于老年患者的上肢手术麻醉。

Clinical Comparison of Different Concentration of Ropivacaine for Brachial Plexus Block Anesthesia in Elderly Patients

Objective： To compare the blockage effect in sense and motive nerves on getting effect time and maintenance lime of brachial plexus with different concentration of ropivacaine in old patients. Methods： Select 60 elderly patients （aged 65-78 years old）, who underwent upper extremity surgery, record the time when their sense and motive nerves were completely blocked and the blockage maintenance, and record their changes of vital signs and complications. Results： The blockage effect demonstrated obviously significant difference of two groups on the time of getting effect and the effect maintenance, but no difference was observed between two groups on vital signs and complications. Conclusion： Compared with 0.25% ropivacaine, 0.37% ropivacaine has quickly effective time, longer, maintenance time and safety, which can be used as regular anaesthesia of upper extremity surgery in elderly patients.