Koscielniak-Nielsen Z J, Horn A, Nielsen P R
Department of Anaesthesia, 2034, National University Hospital, Rigshopitalet, Copenhagen O, Denmark.
Br J Anaesth. 1995 Apr;74(4):387-91. doi: 10.1093/bja/74.4.387.
The influence of arm position on the effectiveness of perivascular axillary nerve block with a catheter was assessed prospectively in two groups of patients. Ninety patients were allocated randomly to receive 1% mepivacaine with adrenaline 40 ml with the arm either adducted or abducted. Radiographs were taken in 12 additional patients; six in each group immediately after injection of 2% mepivacaine 20 ml mixed with contrast agent 20 ml. There were no statistically significant differences in onset time, spread of analgesia, motor block or success rate between the two groups. Proximal flow of the local anaesthetic-contrast agent mixture was neither facilitated by arm adduction nor was it necessary for the development of a successful block.
前瞻性评估了两组患者中手臂位置对导管周围腋神经阻滞效果的影响。90例患者被随机分配，分别接受含肾上腺素的1%甲哌卡因40ml，注射时手臂处于内收或外展状态。另外12例患者接受了X线检查，每组6例，在注射含造影剂20ml的2%甲哌卡因20ml后立即进行。两组在起效时间、镇痛范围、运动阻滞或成功率方面无统计学显著差异。手臂内收既未促进局部麻醉药与造影剂混合液的近端流动，也不是成功阻滞形成所必需的。
