To investigate the effects of brachial plexus block(BPB) and satellite ganglion block(SGB) on the blood flow of upper limb, 22 patients were randomly divided into two groups,and given BPB(group A,n=11) or SGB(group B,n=11) with 1% lidocaine 10 ml every other day for 5 times. Ulnar-radial artery blood flow was measured by using a TCD 30 minutes before and after the block. Finger pulse amplitude was measured by pulse oximeter 5,10,15,20,30 minutes after the block.The average increase in ulnar-radial artery blood flow was 13 cm/s in group A and 5 cm/s in group B. Finger pulse amplitude increased by (9.04±2.12)mm in group A and(3.54±1.42)mm in group B.A significant difference was observed between the two groups (P<0.01).It suggested that BPB could induce more increase in blood flow of the upper limb than SGB.%通过对臂丛神经与星状神经节阻滞病人(SGB)前后上肢(指)血流变化的对比观察,为临床治疗提供参考依据。将22例病人随机分为A组和B组,每组11例。A组为臂丛神经阻滞,B组为SGB,两组用药相同,1%利多卡因10ml,隔日一次,5次为一个疗程。彩色三维经颅多普勒仪监测阻滞前和阻滞后30min尺、桡动脉血流速度(cm/s),脉搏血氧饱和度仪连续监测阻滞前和阻滞后拇、示、中指5、10、15、20和30min的脉搏波幅的变化。结果显示:A组治疗后尺、桡动脉血流平均增快13cm/s,脉搏波幅平均增高(9.04±2.12)mm;B组治疗后尺、桡动脉血流平均增快5cm/s,脉搏波幅平均增高(3.54±1.42)mm。两组间比较有显著差异(P<0.01)。提示臂丛神经阻滞对上肢(指)血流的增加较星状神经节阻滞显著。
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