[Two cases of chronic pain after regional anaesthesia]. / Deux cas de douleur chronique après anesthésie locorégionale.

We are reporting two cases of chronic neuropathic pain after traumatism during regional anaesthesia (RA). Nerve injury is a rare complication of RA and it is the neurogical deficit, which is the most often quoted in medical literature. However, in both cases the neuropathic pain was the single departure point. The reunion of the clinical element, which incorporates possible traumatism during regional anaesthesia, characteristics of pain and unusual painful localization of surgery, should have allowed a more early diagnostic and treatment. In both cases, persistent neuropathic pain incapacitates the patient several years after the traumatism.