{
  "abstract": "Background and Aims Selective truncal blocks have been claimed to be optimal approach for supraclavicular brachial plexus block. However, whether the sheath engulfs a single trunk or are they interspersed with another trunk remains to solved. Further, the nerves emerging from the trunk, are they encompassed in the same sheath or several sheath as it courses to its destination, is elusive. The Objective to evaluate the extent of dye dissemination at each trunk and the inter-truncal spread of dye.Methods In 6 soft embalmed cadavers (12 specimens), 3 ml of different color dye would be injected at the Superior trunk (blue), Middle trunk (purple), Inferior trunk (green). Post injection at 24 th hour, dissection would be performed at the level of superior, middle and inferior trunks. The extent of dye dissemination would be evaluated for each trunk. All nerves would be traced delicately.Results The blue latex injection at ST stained the Suprascapular nerve (SSN), posterior (PD) and anterior division (AD). The SSN was stained blue in 10/12 specimens and the 2/12 specimens stained purple. Axillary nerve from PD of ST was stained blue in all specimens. Lateral pectoral nerve (LPN) from AD of ST was stained blue in 10/12 specimens and 2/12 specimens stained green. Purple latex injection stained the Anterior and Posterior division of the MT in all 12 specimens. Green dye stained the LT and the respective sheath in all 12 specimens.Conclusions Based on our cadaveric study, the dye injected was contained in the respective sheath and there was no intermix of dye between the sheaths. The nerve originating from the respective trunk was stained with same dye, corresponding to have the same sheath except the SSN (2/12- purple) and LPN (2/12- green).Abstract EP074 Figure 1Dye spread at trunks",
  "authors": [
    {
      "affiliations": [
        "Anaesthesia, Private, Pune, India"
      ],
      "name": "Sandeep Diwan"
    },
    {
      "affiliations": [
        "Anaesthesia, Private, Nagpur, India"
      ],
      "name": "Rasika Timane"
    }
  ],
  "title": "EP074 Evaluation of dye diffusion at three truncal levels in brachial plexus",
  "uid": "92ce6ab7-0a4b-5969-9aa0-5fd0bd657ad0"
}