A Comparison of Posterior and Medial Cord Stimulation for Neurostimulation- Guided Vertical Infraclavicular Block: A Randomized Noninferiority Clinical Trial

作者：Yang Chun Woo; Jung Sung Mee^*; Kwon Hee Uk; Kang Po Soon; Cho Choon Kyu; Oh Jin Young; Lee Younsuk; Choi Junghee

来源：Anesthesia and Analgesia, 2014, 118(4): 874-878.

DOI：10.1213/ANE.0000000000000143

BACKGROUND: We investigated whether medial cord stimulation is inferior to posterior cord stimulation for vertical infraclavicular block with respect to block success. %26lt;br%26gt;METHODS: Ninety-six patients scheduled for upper limb surgery were randomly elicited a medial or posterior cord response for infraclavicular block using 40 mL of 0.5% ropivacaine. We assessed block success (complete sensory block of the 5 nerves in the forearm at 50 minutes) as the primary end point and block procedure characteristics and adverse events as secondary end points. %26lt;br%26gt;RESULTS: The block success rates did not differ significantly between medial and posterior cord stimulation (95.7% [44/46] vs 91.7% [44/48], 95% CI of difference, -7.4% to 15.6%), while the secondary end points were comparable in both groups. %26lt;br%26gt;CONCLUSIONS: Needle manipulation to elicit medial cord response is noninferior to posterior cord response of block success during neurostimulation-guided vertical infraclavicular block.

• 出版日期2014-4