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目的:探讨神经阻滞在老年患者单侧下肢创伤手术麻醉中的疗效及其对患者血流动力学的影响。方法:选取浙江省台州医院2017年2月至2019年6月收治的单侧下肢创伤老年患者100例为研究对象。按照麻醉方法不同，将患者分为A组50例、B组50例。A组采用神经阻滞，B组采用轻比重蛛网膜下腔麻醉。比较两组麻醉效果、血流动力学参数变化、并发症及不良反应发生率。结果:A组总有效率为98.00%(49/50)，显著高于B组的86.00%(31/50)，组间差异有统计学意义(χn 2＝16.973，n P0.05)；麻醉后15 min，A组舒张压、心率、血氧饱和度分别为(70.32±3.42)mmHg、(86.28±2.42)次/min、(139.03±2.63)%，B组分别为(70.26±1.66)mmHg、(86.73±1.63)次/min、(140.97±1.84)%；麻醉后30 min，A组舒张压、心率、血氧饱和度分别为(68.73±2.11)mmHg、(85.26±0.52)次/min、(136.18±3.89)%，B组分别为(70.98±1.92)mmHg、(87.24±2.31)次/min、(140.39±0.77)%；麻醉后60 min，A组舒张压、心率、血氧饱和度分别为(67.34±3.25)mmHg、(86.26±1.31)次/min、(134.89±2.37)%，B组分别为(71.01±3.12)mmHg、(87.39±1.32)次/min、(140.99±1.64)%；两组差异均有统计学意义(麻醉后15 min：n t＝11.315、10.924、10.599，麻醉后30 min：n t＝13.411、8.226、9.779，麻醉后60 min：n t＝9.057、8.497、10.131，均n P<0.05)。A组并发症及不良反应发生率为2.00%(2/50)，显著低于B组的18.00%(9/50)，组间差异有统计学意义(χn 2＝16.913，n P<0.05)。n 结论:神经阻滞在老年患者单侧下肢创伤手术麻醉中效果显著，能够有效稳定患者血流动力学，降低患者并发症及不良反应的发生率。“,”Objective:To investigate the effect of nerve block anesthesia on hemodynamics in elderly patients undergoing unilateral lower limb trauma surgery.Methods:From February 2017 to June 2019, 100 elderly patients with unilateral lower extremity trauma admitted in our hospital were selected in this study.According to different anesthesia methods, the patients were divided into two groups, with 50 cases in each group.Group B was given light specific gravity subarachnoid anesthesia, while group A received nerve block anesthesia.The anesthesia effect, hemodynamic parameter changes, complications and incidence of adverse reactions between the two groups were compared.Results:The total effective rate of group A was 98.00%(49/50), which was significantly higher than that of group B[86.00%(31/50)], the difference between the two groups was statistically significant(χn 2=16.973, n P0.05). At 15 minutes after anesthesia, the diastolic blood pressure, heart rate and blood oxygen saturation in group A were (70.32±3.42)mmHg, (86.28±2.42)times/min, (139.03±2.63)%, respectively, which in group B were (70.26±1.66)mmHg, (86.73±1.63)times/min, (140.97±1.84)%, respectively.At 30 minutes after anesthesia, the diastolic blood pressure, heart rate and blood oxygen saturation in group A were (68.73±2.11)mmHg, (85.26±0.52)times/min, (136.18±3.89)%, respectively, which in group B were (70.98±1.92)mmHg, (87.24±2.31)times/min, (140.39±0.77)%, respectively.At 60 minutes after anesthesia, the diastolic blood pressure, heart rate, blood oxygen saturation in group A were (67.34±3.25)mmHg, (86.26±1.31)times/min, (134.89±2.37)%, respectively, which in group B were (71.01±3.12)mmHg, (87.39±1.32)times/min, (140.99±1.64)%, respectively.The differences between the two groups were statistically significant(n t=11.315, 10.924, 10.599, n t=13.411, 8.226, 9.779, n t=9.057, 8.497, 10.131, all n P<0.05). The incidence of complications and adverse reactions in group A was 2.00%(2/50), which was significantly lower than that in group B[18.00%(9/50)], the difference between the two groups was statistically significant(χn 2=16.913, n P<0.05).n Conclusion:Nerve block anesthesia is effective in elderly patients with unilateral lower limb trauma surgery, which can effectively stabilize the hemodynamics and reduce the incidence of complications and adverse reactions.