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SHR Neuro Cancer Cardio Lipid Metab Microb

Feigl, G; Aichner, E; Mattersberger, C; Zahn, PK; Avila Gonzalez, C; Litz, R.
Ultrasound-guided anterior approach to the axillary and intercostobrachial nerves in the axillary fossa: an anatomical investigation.
Br J Anaesth. 2018; 121(4): 883-889. Doi: 10.1016/j.bja.2018.06.006 [OPEN ACCESS]
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Leading authors Med Uni Graz: Feigl Georg
Co-authors Med Uni Graz: Mattersberger Christian
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Abstract:: The posterolateral and medial aspect of the arm is supplied by the axillary (AXN) and intercostobrachial nerves (ICBN), which are not anaesthetised by an axillary brachial plexus block (ABPB). Blockade of the AXN and the ICBN has been reported in the quadrangular space (QS) posteriorly or by serratus plane block, respectively. An anterior ultrasound-guided approach to block the AXN and ICBN would be desirable to complete an ABPB at a single insertion site. After a preliminary dissection study in six cadavers, ultrasound-guided AXN and ICBN injection was performed in 46 Thiel embalmed cadavers bilaterally. Key sonographic landmarks to identify the AXN in the QS are the humerus, teres major muscle, and subscapular muscle. With the same probe position, the ICBN was identified in the subfascial axillary space. Then, 2 ml latex was injected at each nerve and confirmed by dissection. Muscular and bony landmarks were identified in all cadavers. The AXN was seen in 99% in the QS or at the inferolateral margin of the subscapular muscle and surrounded by latex in 96% of cases. Latex spread to the axillary fossa, within the subscapular muscle, or to the radial nerve was noted in 8% of the injections. The ICBN was seen and surrounded by latex in 100% of cases. We describe a reliable ultrasonographic approach to visualise the AXN and ICBN anteriorly from the conventional ABPB approach as confirmed in this cadaver study. Copyright © 2018 British Journal of Anaesthesia. Published by Elsevier Ltd. All rights reserved.
Find related publications in this database (Keywords): brachial plexus; brachial plexus blockade; nerve blockade; upper limb; regional anaesthesia; cadaver; neuroanatomy