Coventry D M, Barker K F, Thomson M
Department of Anaesthetics, Ninewells Hospital and Medical School, Dundee, UK.
Br J Anaesth. 2001 Jan;86(1):80-3. doi: 10.1093/bja/86.1.80.
This prospective, randomized, double-blind study compared two techniques of axillary brachial plexus block using a peripheral nerve stimulator. Both groups received initial musculocutaneous nerve block followed by either a single injection on median nerve stimulation (group 1) or a double injection divided between median and radial nerves (group 2). All 60 patients received a total of 30 ml of lidocaine 15 mg/ml with epinephrine 5 microg/ml. Complete sensory blockade of all six peripheral nerves occurred in 53% and 97% of patients in groups 1 and 2, respectively (P<0.001), with a more rapid onset of blockade occurring in group 2 patients (P<0.001). Complete motor blockade was evident in 30% and 83% of patients in groups 1 and 2, respectively (P<0.001).
这项前瞻性、随机、双盲研究使用外周神经刺激器比较了两种腋路臂丛神经阻滞技术。两组均先进行肌皮神经阻滞，然后在正中神经刺激时，一组（第1组）单次注射，另一组（第2组）在正中神经和桡神经之间进行两次注射。所有60例患者均接受总量为30 ml的15 mg/ml利多卡因加5 μg/ml肾上腺素。第1组和第2组分别有53%和97%的患者实现了所有六条外周神经的完全感觉阻滞（P<0.001），第2组患者的阻滞起效更快（P<0.001）。第1组和第2组分别有30%和83%的患者出现明显的完全运动阻滞（P<0.001）。
