The prevertebral fascia envelops the brachial plexus from the cervical vertebrae to the distal axilla, forming a subclavian perivascular space that is continuous with the axillary perivascular space. By applying the concept of the axillary perivascular technique to the supraclavicular approach, the authors have developed the subclavian perivascular technique which affords greater simplicity) safety and consistency of results than presently used supraclavicular technique. Just as with peridural technique, once the space has been entered only a single injection is necessary and the extent of anesthesia will depend on the volume of anesthetic and the level at which it is injected. Sufficient volumes by either approach will produce cervical as well as brachial plexus anesthesia since the cervical plexus travels in the same space at a higher level.
(C) 1964 American Society of Anesthesiologists, Inc.