Lanz E, Theiss D
Anaesthesist. 1979 Aug;28(8):57-62.
A scheme for evaluating brachial plexus block was developed, which is based on anatomical structures and which utilizes simple neurological examination techniques. It facilitates the localization of the tip of the cannula near the plexus, gives an idea of the spread of the local anesthetic in the region of the trunks and cords, gives well timed judgement on the success of the block and allows a comparison of the development of the block when using various techniques. Using this scheme, the development of the block was examined following use of the supraclavicular and interscalene approach. With the supraclavicular technique, motor as well as sensory blockade of all nerves of the brachial plexus occurred with about the same frequency; with the interscalene technique, the centre of the block affected the caudal nerves of the cervical plexus and the cranial nerves of the brachial plexus. Following both approaches, the blockade developed from proximal to distal areas, the motor blockade preceding the sensory blockade.
开发了一种评估臂丛神经阻滞的方案，该方案基于解剖结构，并采用简单的神经学检查技术。它有助于将套管尖端定位在神经丛附近，了解局部麻醉药在干和束区域的扩散情况，对阻滞的成功进行适时判断，并允许在使用各种技术时比较阻滞的进展。使用该方案，在采用锁骨上和肌间沟入路后检查了阻滞的进展情况。采用锁骨上技术时，臂丛神经所有神经的运动和感觉阻滞发生频率大致相同；采用肌间沟技术时，阻滞中心影响颈丛的尾侧神经和臂丛的头侧神经。两种入路后，阻滞均从近端向远端区域发展，运动阻滞先于感觉阻滞。
