[The use of the infraclavicular plexus catheter for treatment of perioperative and chronic pain].

Objectives: The aim of this prospective study was to evaluate the vertical infraclavicular approach to the brachial plexus for the insertion of a catheter to achieve continuous analgesia in postoperative patients and patients with chronic upper limb pain.

Methods: The brachial plexus was identified using the technique described by Kilka et al. and a flexible catheter (diameter 0.