Beyond the Brachial Plexus: Reapplication of the Thoracic Paravertebral Block for Upper Arm Fistula Surgery.

Patients requiring complex upper arm arteriovenous fistulas or grafts may not be suitable candidates for a single regional anesthesia technique and monitored anesthesia care because the necessary thoracic (T2) dermatomal area of the medial, upper arm remains spared by any solitary brachial plexus (C5-T1) technique. An infiltrative intercostobrachial nerve block can often be used in conjunction with a brachial plexus block; however, coverage may still be incomplete. This case report describes the use of a high thoracic paravertebral block in conjunction with a brachial plexus block to achieve adequate anesthetic coverage for an upper arm arteriovenous fistula creation procedure extending into the axilla. The result of this technique showed adequate coverage of the upper arm and demonstrates that paravertebral blocks are a reasonable adjunct for proximal upper arm arteriovenous fistula procedures.